Recent Price Update for BFP520

Basic parameters 
Product Category: NPN high frequency low power transistor 
Manufacturer: Siemens 
The maximum reverse voltage set-based: 12V 
The direction of the maximum base-emitter voltage: 1V 
Maximum base electrode current: 40MA 
Maximum Collector Power Dissipation: 100 MA 
Minimum current gain: 50 
Maximum current gain: 150 
Characteristic frequency: 45000Mhz 
Noise Figure: 1 db 
Gain: 23db 
Output 1db compression point: 12dbm 
As of third-order focal point adjustment: 25dbm 

Price Updated 

BFP520’s recent price is relatively stable. Trading volume from the major electronic component 

site, is still relatively good. The price of this product is expected to stay at around 0.8yuan /pcs. Though it is a hot sale product, there is no big change to its price due to the guaranteed supply source. 

2SC3356: NPN Silicon Epitaxial Transistor

The 2SC3356 is an NPN silicon epitaxial transistor designed for low noise amplifier at VHF, UHF and CATV band. It has dynamic range and good current characteristic. 

This electronic component  is now newly in stock in Hqew.net.

FEATURES

• Low Noise and High Gain

NF = 1.1 dB TYP., Ga = 11 dB TYP. @VCE = 10 V, IC = 7 mA, f = 1.0 GHz

• High Power Gain

MAG = 13 dB TYP. @VCE = 10 V, IC = 20 mA, f = 1.0 GHz

ABSOLUTE  MAXIMUM  RATINGS  (T_A = 25 ℃)

Collector to Base Voltage VCBO 20 V

Collector to Emitter Voltage VCEO 12 V

Emitter to Base Voltage VEBO 3.0 V

Collector Current IC 100 mA

Total Power Dissipation PT 200 mW

Junction Temperature Tj 150 ℃

Storage Temperature Tstg -65 to +150 ℃

The April 27 Price for LM358

Brand: ST / ON / TI 
Package: SOIC 
Features: 
Op Amp Type: Single Power Supply, Dual Operational Amplifier 
Number of amplifiers: 2 
Pin Count: 8 
CMRR: 70dB (typical) 
Common mode input voltage: 0 ~ 28.3V 
Device label: 358 
Operating voltage: 3V ~ 32V 
Input offset voltage: 7mV (maximum), 2.0mV (typical) 
Package Type: SOIC 
Welding method: SMD 
Operating temperature range: 0 ° C to +70 ° C 
Applications: substation control, WiMAX and wireless infrastructure 
Alternative Model: CA2904E C061702 BA728 BA10358 

LM358 is the most common and widely used amplifier in electronic component industry.

The searches for this product on majored electronic sites remain high. According to Huaqiangbei price index, the newly referenced price are ranging from 0.32-0.6yuan per pc for the ST/TI entirely new imported product; while it is 0.14-025yuan /pc for the Chinese product.

widely used in the major electronic sites on the search rate remains high, more people for a quotation. Huaqiang North business, according to the feedback, LM358 recent adequate supply, merchants offer highly motivated, the most recent reference quoted: ST / TI imported brand new offer in the 0.32-0.6 yuan / PCS, the average quoted at 0.45 yuan / PCS; and made the original offer relatively low, offer concentrated in the 0.14-0.25 per / PCS.

ACPM-7311’s Latest Price

Manufacturers: AVAGO 

Package: QFN 
ACPM-7311 is a power amplifier which is designed for W-CDMA applications. This electronic component is perfectly matched the 10-pin CDMA, Wide- band Code Division Multiple Access, and operates under the frequency of 824-849 MHz, highly satisfying the W-CDMA linearity requirements.

Features:

1.    Towering linear

2.    Low quiescent current

3.    High efficiency

- When the power output of 42% = 28dBm 
- When the power output of 18% = 16dBm 
- When the power output = 8dBm 5.5% 
(No DCDC converter) 

4. 10-pin surface mount package (4 mm x 4 mm x 1.1 mm)

5. Built-in 50ohm RF output matching circuits

The market demand on ACPM-7311 is growing. According to the Huaqiang BEI’’s price index, we found that the recent reference price of this product is ranged from 9.5/pcs - 13 yuan / pcs, and the in stock products now are less than adequate. 

INA137UA: Differential Line Receivers

The component INA137UA is one of the INA137 family. Among so many electronic components, the INA137 and INA2137 are differential line receivers consisting of high performance op amps with on-chip precision resistors. They are fully specified for high performance audio applications and have excellent ac specifications, including low distortion (0.0005% at 1kHz) and high slew rate (14V/µs), assuring good dynamic response. In addition, wide output voltage swing and high output drive capability allow use in a wide variety of demanding applications. The dual version features completely independent circuitry for lowest crosstalk and freedom from interaction, even when overdriven or overloaded.

The INA137 and INA2137 on-chip resistors are laser trimmed for accurate gain and optimum common-mode rejection. Furthermore, excellent TCR tracking of the resistors maintains gain accuracy and common-mode rejection over temperature. Operation is guaranteed from  ±4V to  ±18V (8V to 36V total supply).

The INA137 is available in 8-pin DIP and SO-8 surface-mount packages. The INA2137 comes in

14-pin DIP and SO-14 surface-mount packages. Both are specified for operation over the extended industrial temperature range, –40°C to +85°C.

TL082CP: Newly in Stock Integrated Circuits

The component TL082CP is one of the TL082 that belonged to the wide bandwidth dual JFET input operational amplifiers.

These electronic components are low cost, high speed, dual JFET input operational amplifiers with an internally trimmed input offset voltage (BI-FET II™ technology). They require low supply current yet maintain a large gain bandwidth product and fast slew rate. In addition, well matched high voltage JFET input devices provide very low input bias and offset currents. The TL082 is pin compatible with the standard LM1558 allowing designers to immediately upgrade the overall performance of existing LM1558 and most LM358 designs.

These amplifiers may be used in applications such as high speed integrators, fast D/A converters, sample and hold circuits and many other circuits requiring low input offset voltage, low input bias current, high input impedance, high slew rate and wide bandwidth. The devices also exhibit low noise and offset voltage drift.

See more information about TL082CP please visit www.hqew.net directly.

The Hottest Amplifiers——LM741

The component LM741 is now almost the hottest amplifiers on electronic component market, people are search a lot for this product though major search engine, according to the component trading sites.

The LM741 series are general purpose operational amplifiers which feature improved performance over industry standards like the LM709. They are direct, plug-in replacements for the 709C, LM201, MC1439 and 748 in most applications.

The amplifiers offer many features which make their application nearly foolproof: overload protection on the input and output, no latch-up when the common mode range is exceeded, as well as freedom from oscillations.

The LM741C/LM741E are identical to the LM741/LM741A except that the LM741C/LM741E have their performance guaranteed over a 0§Cto a70§C temperature range, instead of b55§Cto a125§C.

M54543L: An electronic component of Commercial-use Equipment

The component M54543L is a common electronic component which is usually used in the commercial-use equipment, audio such as tape recorder or radio, cassette recorder and VCR as well.

The M54543L is an IC for driving a small size bi-directional motor for forward/reverse rotation. When both of inputs 1 and 2 are "L", outputs 1 and 2 are "OFF". When input 1 is "H" and input 2 is "L", output 1 is "H" and output 2 is "L" (forward rotation). When input 1

is "L" and input 2 is "H", output 1 is "L" and output 2 is "H" (reverse rotation). When both of inputs 1 and 2 are "H", both of outputs 1 and 2 are "L" (braking).

The IC is provided with a control circuit power supply (V_cc) and an output power supply (V_cc') independently. The motor rotation speed can be changed by operating Vcc and V_cc' from a separate supply and varying the voltage of V_cc or V_cc'.

FEATURES

1.    Wide operating voltage range (Vcc = 4V to 16V)

2.    Direct drive capability by TTL, PMOS and CMOS IC outputs

3.    Low output saturation voltage (large voltage across motor)

4.    Built-in clamp diode

5.    Large output current drive (Io (max) = ±1.2A) 

6.   With brake function

MC145106P: A PLL Electronic Component

This MC145106P is simple MC145106 series. It is one of the PLL electronic components.

The MC145106 is a phase–locked loop (PLL) frequency synthesizer constructed in CMOS on a single monolithic structure. This synthesizer finds applications in such areas as CB and FM transceivers. The device contains an oscillator/amplifier, a 210 or 211 divider chain for the oscillator signal, a programmable divider chain for the input signal, and a phase detector. The MC145106 has circuitry for a 10.24 MHz oscillator or may operate with an external signal.

The circuit provides a 5.12 MHz output signal, which can be used for frequency tripling. A 29 programmable divider divides the input signal frequency for channel selection. The inputs to the programmable divider are standard ground–to–supply binary signals. Pull–down resistors on these inputs normally set these inputs to ground enabling these programmable inputs to be

controlled from a mechanical switch or electronic circuitry.

The phase detector may control a VCO and yields a high level signal when input frequency is low, and a low level signal when input frequency is high. An out–of–lock signal is provided from the on–chip lock detector with a “0” level for the out–of–lock condition.

FQP3P50: P-Channel Effect Transistors

The component FQP3P50 is a P-Channel enhancement mode power field effect transistor which is produced using Fairchild’s proprietary, planar stripe, DMOS technology.

This advanced technology has been especially tailored to minimize on-state resistance, provide superior switching performance, and withstand high energy pulse in the avalanche and commutation mode. These electronic components are well suited for electronic lamp ballast based on complimentary half bridge.

Features

• -2.7A, -500V, RDS(on) = 4.9Ω @VGS = -10 V

• Low gate charge ( typical 18 nC)

• Low Crss ( typical  9.5 pF)

• Fast switching

• 100% avalanche tested

• Improved dv/dt capability

AD8131AR14: A Replaced Transformers of Preserving Low Frequency and Dc Information Component

The product AD8131AR14 is a electronic component part on Hqew.net. It is among the AD8131 series. Here is its general description.

The AD8131 is a differential or single-ended input to differential output driver requiring no external components for a fixed gain of 2. The AD8131 is a major advancement over op amps for driving signals over long lines or for driving differential input ADCs. The AD8131 has a unique internal feedback feature that provides output gain and phase matching that are balanced to –60 dB at 10 MHz, reducing radiated EMI and suppressing harmonics. Manufactured on ADI’s next generation XFCB bipolar process, the AD8131 has a –3 dB bandwidth of 400 MHz and delivers a differential signal with very low harmonic distortion. The AD8131 is a differential driver for the transmission of high-speed signals over low-cost twisted pair or coax cables. The AD8131 can be used for either analog or digital video signals or for other high-speed data transmission. The AD8131 driver is capable of driving either Cat3 or Cat5 twisted pair or coax with minimal line attenuation. The AD8131 has considerable cost and performance improvements over discrete line driver solutions.

The AD8131 can replace transformers in a variety of applications preserving low frequency and dc information. The AD8131 does not have the susceptibility to magnetic interference and hysteresis of transformers, while being smaller in size, easier to work with, and has the high reliability associated with ICs.

The AD8131’s differential output also helps balance the input for differential ADCs, optimizing the distortion performance of the ADCs. The common-mode level of the differential output is adjustable by a voltage on the VOCM pin, easily level-shifting the input signals for driving single supply ADCs with dual supply signals. Fast overload recovery preserves sampling accuracy.

The AD8131 will be available in both SOIC and µSOIC packages for operation over –408C to +858C.

See more electronic components， just stay。。。

We will continue to spare no effort to offer more..

SN74LV123APWR: It Can Be Retriggerable!

Component SN74LV123APWR is among the LV123A series that are retriggerable and monostable multivibrators. Such electronic components are designed for 2-V to 5.5-V V_CC operation. Let’s unveil their features first.
 1.       2-V to 5.5-V VCC Operation

2.       Max tpd of 11 ns at 5 V

3.       Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25°C

4.  Typical VOHV (Output VOH Undershoot)>2.3 V at VCC = 3.3 V, TA = 25°C

5.  Support Mixed-Mode Voltage Operation on All Ports

6.  Schmitt-Trigger Circuitry on A, B, and CLR Inputs for Slow Input Transition 

    Rates

7.  Edge Triggered From Active-High or Active-Low Gated Logic Inputs

8.  Ioff Supports Partial-Power-Down Mode Operation

9.  Retriggerable for Very Long Output Pulses, up to 100% Duty Cycle

10. Overriding Clear Terminates Output Pulse

11. Glitch-Free Power-Up Reset on Outputs

12. Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

13. ESD Protection Exceeds JESD 22

−  2000-V Human-Body Model (A114-A)

−  200-V Machine Model (A115-A)

−  1000-V Charged-Device Model (C101)

3 Main Advantages You Need to Know about the AD9617JRZ

The component AD9617JRZ is one of the AD9617 series among so many electronic components.

It produces superior distortion and dc precision

The AD9617 is a current feedback amplifier which utilizes a proprietary architecture to produce superior distortion and dc precision. It achieves this along with fast settling, very fast slew rate, wide bandwidth (both small signal and large signal) and exceptional signal fidelity. The device achieves –67 dBc 2^nd harmonic distortion at 20 MHz while maintaining 190 MHz small signal and 150 MHz large signal bandwidths.

It is an ideal choice for driving flash ADCs and buffering the latest generation of DACs

The attributes above position the AD9617 as an ideal choice for driving flash ADCs and buffering the latest generation of DACs. Optimized for applications requiring gain between ±1 to ±15, the AD9617 is unity gain stable without external compensation.

Its wide applications

The AD9617JRZ offers outstanding performance in high fidelity, wide bandwidth applications in instrumentation ranging from network and spectrum analyzers to oscilloscopes, and in military

systems such as radar, SIGINT and ESM systems. The superior slew rate, low overshoot and fast settling of the AD9617 allow the device to be used in pulse applications such as communications receivers and high speed ATE. Most monolithic op amps suffer in these precision pulse applications due to slew rate limiting.

The AD9617J operates over the range of 0°C to +70°C and is available in either an 8-lead plastic DIP or an 8-1ead plastic small outline package (SOIC). 

ICM7228CIBI: The ICM7228 Series

The new updated component ICM7228CIBI on Hqew.net is belonged to the ICM7228 series. The article just offers a general description for such electronic components.

The Harris ICM7228 display driver interfaces microprocessors to an 8 digit, 7 segment, numeric LED display. Included on chip are two types of 7 segment decoder, multiplex scan circuitry, LED display segment drivers, LED display digit drivers and an 8-byte static memory as display RAM.

Data can be written to the ICM7228A and ICM7228B's display RAM in sequential 8 digit update or in single digit update format. Data is written to the ICM7228C and ICM7228D display RAM in parallel random access format. The ICM7228A and ICM7228C drive common anode displays. The ICM7228B and ICM7228D drive common cathode displays. All versions can display the RAM data as either Hexadecimal or Code B format.

The ICM7228A and ICM7228B incorporate a No Decode mode allowing each bit of each digit's RAM word to drive individual display segments resulting in independent control of all display segments and formats can be driven directly by this chip. The Harris ICM7228 is an alternative to both the Maxim ICM7218 and the Harris ICM7218 display drivers. Notice that the ICM7228A/B has an additional single digit access mode. This could make the Harris ICM7218A/B software incompatible with ICM7228A/B operation.

See more please go to www.hqew.net. 

WM8776SEFT: A Component for Your Hi-Fi Systems

The electronic component WM8776SEFT is one of the WM8776 series. The WM8776SEFT is mostly seen in the surround sound AV Processors and Hi-Fi systems. The WM8776 is a high performance, stereo audio codec with six channel input selector. The WM8776 is ideal for surround sound  processing applications for home hi-fi, DVD-RW and other audio visual equipment. 

A stereo 24-bit multi-bit sigma delta ADC is used with a five stereo channel input mixer. Each ADC channel has programmable gain control with automatic level control.

Digital audio output word lengths from 16-32 bits and sampling rates from 32kHz to 96kHz are supported. 

A stereo 24-bit multi-bit sigma delta DAC is used with digital audio input word lengths from  16-32 bits and sampling rates from 32kHz to 192kHz. The DAC has an input mixer allowing an  external analogue signal to be mixed with the DAC signal. There are also Headphone and  line  outputs,  with volume controls for the headphones.

The WM8776 supports fully independent sample rates for the ADC and DAC. The audio data interface supports I2S, left justified, right justified and DSP formats.

The device is controlled in  software via a 2 or 3 wire serial interface, selected by the MODE  pin, which provides access to all features including channel selection,  volume controls,  mutes,  and de-emphasis facilities.  

HUF75332G3: A Power Efficiency Necessary Component

The component HUF75332G3 is a N-Channel power MOSFET which is manufactured by using the innovative UltraFET process. This advanced process technology achieves the lowest possible on-resistance per silicon area, resulting in outstanding performance. This device is capable of withstanding high energy in the avalanche mode and the diode exhibits very low reverse recovery time and stored charge.

The electronic component HUF75332G3 was designed for use in applications where power efficiency is important, such as switching regulators, switching converters, motor drivers, relay drivers, low-voltage bus switches, and power management in portable and battery-operated products.

Features

• 60A, 55V

• Simulation Models

- Temperature Compensated PSPICE and SABER Models

- SPICE and SABER Thermal Impedance Models

Available on the WEB at: www.fairchildsemi.com

• Peak Current vs Pulse Width Curve

• UIS Rating Curve

• Related Literature

- TB334, “Guidelines for Soldering Surface Mount

Components to PC Boards”

STPC12GDYI: ST Controller

In STPC Atlas series, the component STPC12GDYI is mostly used as a ST controller. And, the STPC Atlas integrates a standard 5th generation x86 core along with a powerful UMA graphics/video chipset, support logic including PCI, ISA, Local Bus, USB, EIDE controllers and combines them with standard I/O interfaces to provide a single PC compatible subsystem on a single device, suitable for all kinds of terminal and industrial appliances.

Where we can see this electronic component? Just check below. 

1.       X86 Processor core

2.       Enhanced 2D Graphics Controller

3.       CRT Controller

4.       SDRAM Controller

5.       Video Input port

6.       Video Pipeline