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Diodes Incorporated BC857BV-7
- Part No.:
- BC857BV-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays
- Package:
- SOT-563, SOT-666
- Datasheet:
-
BC857BV-7.pdf
- Description:
- TRANS 2PNP 45V 100MA SOT-563
- Quantity:
- Payment:
- Shipping:
Inventory:5,666
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Product details
Overview
BC857BV-7 from Diodes Incorporated is a dual PNP small-signal transistor in SOT563 package, rated for -45 V VCEO, -100 mA IC, and 260 mW power dissipation. It features epitaxial die construction, JEDEC-qualified high reliability, and is optimized for low-voltage switching and amplification in space-constrained PCBs such as portable power management and signal routing circuits.
For engineers reviewing the BC857BV-7 datasheet, BC857BV-7 pinout, BC857BV-7 application, or BC857BV-7 equivalent, key selection criteria include its dual PNP configuration, -45 V breakdown rating, hFE range of 220–475 at -2 mA, fT = 100 MHz, and AEC-Q qualified automotive-grade availability (Q-suffix variants).
Technical Context
The BC857BV-7 integrates two matched PNP transistors in a single ultra-small SOT563 package, enabling compact dual-channel biasing, current mirroring, or complementary pair implementation with BC847BV. Its epitaxial construction ensures stable gain and low leakage across -55°C to +150°C operating range.
It supports DC switching and linear amplification with VCE(sat) ≤ -100 mV at IC = -10 mA / IB = -0.5 mA, and delivers 100 MHz fT under VCE = -5 V, making it suitable for audio preamplifiers and low-speed digital logic interface stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -45 V - Maximum safe collector-emitter voltage before avalanche conduction in common-emitter configuration. |
| IC | -100 mA - Continuous collector current limit; defines maximum load drive capability per transistor. |
| hFE | 220–475 - DC current gain range at VCE = -5 V, IC = -2 mA; determines base drive sizing for saturation. |
| fT | 100 MHz - Unity-gain frequency; sets upper bound for small-signal amplification bandwidth. |
| PD | 260 mW - Maximum steady-state power dissipation on FR4 PCB with 1 oz copper; constrains thermal layout. |
| ESD HBM | 4000 V - Human Body Model robustness; enables handling without special ESD precautions in assembly. |
Pinout & Package
Package: SOT563 - ultra-small 6-pin surface-mount package (1.60 × 1.60 × 0.60 mm), lead-free, halogen-free, and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| C1 | Collector of Transistor 1 | Primary current sink node for first PNP; connects to load or supply rail in high-side switch topology. |
| B2 | Base of Transistor 2 | Control input for second PNP; requires current-limiting resistor to set operating point. |
| E2 | Emitter of Transistor 2 | Common emitter connection point; typically tied to VCC in PNP switch applications. |
| C2 | Collector of Transistor 2 | Current sink node for second PNP; enables dual independent or mirrored switching paths. |
| E1 | Emitter of Transistor 1 | Emitter reference for first transistor; used for bias network sharing or differential pair configuration. |
| B1 | Base of Transistor 1 | Control input for first PNP; electrically isolated from B2 for independent gate control. |
Key Features
| Feature | Design Value |
|---|---|
| Dual PNP topology | Two electrically isolated transistors in one SOT563 footprint-reduces board area by ~40% vs. discrete SOT23 solutions. |
| JEDEC-qualified reliability | Qualified to AEC-Q101 standards with IATF 16949 manufacturing-supports automotive infotainment and body electronics. |
| Low VCE(sat) | -100 mV max at IC = -10 mA-minimizes conduction loss in battery-powered load switches. |
| High fT | 100 MHz gain-bandwidth product-enables use in 10–20 MHz oscillator or amplifier stages. |
| Green compound packaging | Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb)-meets strict environmental compliance mandates. |
Applications
| LED Driver Circuit | Level-Shifting Interface |
|---|---|
Use Scenario: Driving dual-color indicator LEDs from 3.3 V microcontroller GPIOs with active-low logic. IC Role / Device Role: Dual PNP switch controlling cathode-side LED current paths. Use Value: Enables independent on/off control of two LEDs using one compact device, reducing component count and PCB footprint. |
Use Scenario: Converting 1.8 V logic signals to 5 V domain in mixed-voltage sensor interfaces. IC Role / Device Role: PNP-based level shifter with pull-up resistors on emitter outputs. Use Value: Provides bidirectional voltage translation without external MOSFETs or dedicated level-shift ICs. |
| Current Mirror Reference | Audio Preamp Stage |
Use Scenario: Generating matched bias currents for op-amp input stages in portable audio codecs. IC Role / Device Role: Matched dual PNP pair providing thermally coupled current replication. Use Value: Achieves <±3% current matching across temperature due to monolithic integration and shared die thermal mass. |
Use Scenario: Low-noise preamplification of electret microphone output in hearing aids and voice recorders. IC Role / Device Role: Common-emitter amplifier stage with emitter degeneration resistor. Use Value: Delivers NF = 10 dB at 1 kHz and sufficient gain-bandwidth for 20 kHz audio bandwidth with minimal quiescent current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual PNP transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC857B,215 (Nexperia) | SOT363 package (larger footprint), same VCEO/IC, hFE min = 200 | Less space-constrained designs; lower thermal resistance (RθJA = 350°C/W) | Select when board real estate allows larger package and higher power handling is needed. |
| MBT3906DW1T1G (ON Semiconductor) | SOT363, VCEO = -40 V, hFE = 100–300, fT = 250 MHz | Higher speed but lower breakdown; suited for RF bias networks over general-purpose switching | Prefer for high-frequency biasing where gain-bandwidth >100 MHz is critical and voltage margin is relaxed. |
Compared with BC857BV-7, BC857B,215 offers better thermal performance in less dense layouts, while MBT3906DW1T1G trades voltage headroom for higher fT-making BC857BV-7 optimal for compact, automotive-grade, medium-speed switching where -45 V rating and JEDEC reliability are mandatory.
Availability
BC857BV-7 is available at Aetrix Electronics and suitable for LED driver circuits, level-shifting interfaces, current mirror references, and audio preamp stages requiring stable component supply, long-term lifecycle support, and automotive-qualified alternatives.
Supply support for BC857BV-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The BC857BV-7 belongs to Diodes' high-reliability small-signal transistor portfolio, designed specifically for space-constrained, thermally demanding, and automotive-compliant applications requiring consistent parametric matching and extended temperature operation.
FAQ
Is BC857BV-7 pin-compatible with BC847BV?
No-BC857BV-7 is a dual PNP transistor, while BC847BV is its complementary dual NPN counterpart. Their pinouts are mirror-symmetric: BC857BV-7 uses C1/B2/E2/C2/E1/B1, whereas BC847BV uses E1/B2/C2/E2/C1/B1. Direct substitution is not possible without circuit redesign.
What is the maximum junction temperature during continuous operation?
The BC857BV-7 has an operating junction temperature range of -55°C to +150°C. At ambient temperatures up to +85°C and with 260 mW dissipation on a 1 oz copper FR4 board, junction temperature remains within limits if thermal derating per Figure 1 is observed-power must be reduced linearly above +25°C ambient.
Does BC857BV-7 support AEC-Q101 qualification?
The BC857BV-7 itself is JEDEC-qualified for high reliability and manufactured in IATF 16949-certified facilities. For formal AEC-Q101 qualification, Diodes offers automotive-grade variants with Q-suffix (e.g., BC857BVQ-7), which undergo additional stress testing and PPAP documentation per automotive requirements.
Can BC857BV-7 be used in linear amplifier mode?
Yes-its hFE stability (220–475), low noise figure (10 dB at 1 kHz), and 100 MHz fT support Class-A or emitter-degenerated common-emitter amplifiers. Designers must ensure VCE ≥ 1 V and IC ≤ 50 mA to maintain linearity and avoid thermal runaway in continuous operation.
BC857BV-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- 2 PNP (Dual)
- Current - Collector (Ic) (Max):
- 100mA
- Voltage - Collector Emitter Breakdown (Max):
- 45V
- Vce Saturation (Max) @ Ib, Ic:
- 400mV @ 5mA, 100mA
- Current - Collector Cutoff (Max):
- 15nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 220 @ 2mA, 5V
- Power - Max:
- 150mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
BC857BV-7 FAQ
1.How can I place an order for BC857BV-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC857BV-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BC857BV-7 reliable?
The price and inventory of BC857BV-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC857BV-7 is usually 5 days.
3.What payment methods are accepted for BC857BV-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC857BV-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC857BV-7?
BC857BV-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC857BV-7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BC857BV-7?
For technical support, including BC857BV-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC857BV-7 requirements.
6.How does Aetrix verify that BC857BV-7 is sourced from the original manufacturer or authorized distributors?
All BC857BV-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BC857BV-7 meets industry standards.
7.What is the process for return or replacement of BC857BV-7?
All BC857BV-7 units undergo pre-shipment inspection (PSI). If there is an issue with BC857BV-7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BC857BV-7 part is unused and in its original packaging.
Return procedure for BC857BV-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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