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Diodes Incorporated BC807-40W-7
- Part No.:
- BC807-40W-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BC807-40W-7.pdf
- Description:
- TRANS PNP 45V 0.5A SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:12,772
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Product details
Overview
BC807-40W-7 from Diodes Incorporated is a 45V PNP small-signal transistor in SOT323 package, featuring hFE = 250–600 at IC = −100 mA, VCE = −1.0 V, VCE(sat) ≤ −700 mV at IC = −500 mA / IB = −50 mA, fT = 100 MHz, and ESD HBM rating of 4,000 V. It is designed for switching and audio-frequency amplifier applications in space-constrained PCB layouts.
For engineers reviewing the BC807-40W-7 datasheet, BC807-40W-7 pinout, BC807-40W-7 application, or BC807-40W-7 equivalent, key selection criteria include DC current gain spread (250–600), low saturation voltage under high drive, thermal resistance (RθJA = 625 °C/W), RoHS-compliant "Green" construction, and automotive-qualified manufacturing capability.
Technical Context
This PNP bipolar junction transistor uses epitaxial planar die construction to ensure stable hFE performance across temperature (−65°C to +150°C) and supports pulsed operation with duty cycle ≤2% and pulse width ≤300 µs. Its complementary NPN counterpart is BC817-40W-7.
The device operates with VCEO = −45 V, VCB0 = −50 V, and VEB0 = −6 V, enabling use in medium-voltage biasing, level-shifting, and discrete driver stages where low VCE(sat) and controlled gain are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −45 V - Maximum allowable collector-emitter voltage before breakdown in common-emitter configuration. |
| hFE (IC = −100 mA) | 250–600 - High and tightly binned DC current gain enables predictable base drive sizing in linear and saturated switching. |
| VCE(sat) | ≤ −700 mV @ IC = −500 mA, IB = −50 mA - Low saturation voltage minimizes power loss in high-current switching nodes. |
| fT | 100 MHz - Sufficient gain-bandwidth for AF amplification and fast digital switching up to ~10 MHz. |
| RθJA | 625 °C/W - Thermal resistance on minimum FR4 pad layout; dictates maximum continuous power dissipation (200 mW) in still air. |
| ESD HBM | 4,000 V - Robust electrostatic discharge immunity simplifies handling and reduces assembly-line failures. |
Pinout & Package
Package: SOT323 - ultra-small surface-mount plastic package (2.15 mm × 2.10 mm × 0.95 mm), lead-free, halogen-free, and RoHS-compliant with matte tin-plated terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Current exit node in PNP operation; connects to higher potential rail in common-emitter switch configurations. |
| 2 (Base) | B | Control terminal; requires negative bias relative to emitter to turn on; drives current into base to control collector current. |
| 3 (Collector) | C | Current entry node; typically connected to load and supply rail; voltage swing limited to −45 V max. |
Key Features
| Feature | Design Value |
|---|---|
| Epitaxial planar die construction | Ensures consistent hFE distribution and low leakage (ICES ≤ −100 nA at VCE = −45 V). |
| Low VCE(sat) at high IC | −700 mV at IC = −500 mA enables efficient switching in 3.3 V/5 V logic-driven loads. |
| High fT and gain linearity | 100 MHz fT with flat hFE vs. IC curve supports stable AF amplification up to 20 kHz. |
| Automotive-capable manufacturing | Produced in IATF 16949-certified facilities; PPAP-capable and qualified per AEC-Q101 for stress-tested reliability. |
Applications
| LED Driver Stage | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Driving 20–100 mA indicator LEDs from 3.3 V or 5 V microcontroller outputs. IC Role / Device Role / Timing Role: PNP current sink switch, configured in common-emitter with emitter tied to VCC. Use Value: Low VCE(sat) ensures >95% LED forward voltage utilization; hFE ≥ 250 allows <50 µA GPIO drive current per LED. |
Use Scenario: Level-shifting and current boosting for legacy 5 V peripherals interfaced with 3.3 V MCUs. IC Role / Device Role / Timing Role: Active-low signal inverter and current amplifier between MCU output and peripheral enable input. Use Value: Fast turn-off (driven by base pull-up) and guaranteed hFE > 170 at IC = −300 mA support reliable 10 ms response in enable/disable sequencing. |
| Audio Preamp Bias Network | Power Supply Enable Control |
Use Scenario: Providing stable quiescent current in discrete Class-A headphone preamplifier stages. IC Role / Device Role / Timing Role: Current source element in emitter-degenerated PNP bias leg. Use Value: Tight hFE binning (250–600) and low ICB0 (<−100 nA) minimize thermal drift and offset in dual-rail ±12 V designs. |
Use Scenario: Enabling/disabling secondary LDOs or DC-DC converters in multi-rail embedded power systems. IC Role / Device Role / Timing Role: High-side enable switch controlling EN pin of downstream regulators. Use Value: −45 V VCEO headroom accommodates 24 V auxiliary rails; RθJA = 625 °C/W permits continuous 150 mW dissipation during 100 ms startup surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP small-signal transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC807-25W-7 | hFE = 160–400 (lower mid-range gain); identical VCEO, VCE(sat), and package. | Better suited for moderate-gain, noise-sensitive analog stages where tighter hFE spread reduces matching variance. | Select when design requires lower gain consistency over temperature and reduced sensitivity to base drive tolerance. |
| MMBT4403 | hFE = 100–300 (wider spread); same SOT-323 package but VCEO = −40 V and fT = 200 MHz. | Higher fT supports faster edge rates but lower breakdown margin limits use in 24 V systems. | Prefer for high-speed digital switching below 20 V; avoid where −45 V VCEO headroom is required for transient suppression. |
Compared with BC807-25W-7 and MMBT4403, BC807-40W-7 delivers the highest guaranteed hFE floor (250) and full −45 V breakdown margin-making it optimal for precision biasing and industrial 24 V control interfaces where gain stability and voltage safety margin are critical.
Availability
BC807-40W-7 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller interface expansion, audio preamplifier bias networks, and power supply enable control requiring stable component supply and automotive-grade traceability.
Supply support for BC807-40W-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, specializing in high-reliability, industry-qualified components for automotive, industrial, and consumer markets.
BC807-40W-7 belongs to Diodes' BC807 series of general-purpose PNP transistors, engineered for automatic insertion, high-volume manufacturability, and robust performance in switching and AF amplification roles.
FAQ
What is the maximum continuous collector current for BC807-40W-7?
The absolute maximum continuous collector current is −500 mA at TA = +25°C. Derating applies above +25°C per RθJA = 625 °C/W; at 70°C ambient, maximum usable IC drops to approximately −320 mA to maintain junction temperature below 150°C.
Is BC807-40W-7 qualified for automotive applications?
Yes-BC807-40W-7 is manufactured in IATF 16949-certified facilities and qualifies under AEC-Q101. While not pre-qualified out-of-box, Diodes offers PPAP support and change-controlled versions for automotive programs upon request.
How does the SOT323 package affect thermal performance?
SOT323's small footprint limits copper area for heat spreading. With RθJA = 625 °C/W on minimal 1 oz FR4 pads, the device dissipates only 200 mW at +25°C ambient. Adding thermal vias or increasing copper pour reduces RθJA by up to 30%, enabling higher sustained current.
Can BC807-40W-7 replace BC807-16W-7 in existing designs?
Yes-pin-compatible and electrically backward-compatible. BC807-40W-7 offers higher minimum hFE (250 vs. 100), which may reduce required base drive but does not alter VCE(sat), fT, or voltage ratings. No layout or schematic changes are needed.
BC807-40W-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 45 V
- Vce Saturation (Max) @ Ib, Ic:
- 700mV @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 250 @ 100mA, 1V
- Power - Max:
- 200 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BC807-40W-7 FAQ
1.How can I place an order for BC807-40W-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC807-40W-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 BC807-40W-7 reliable?
The price and inventory of BC807-40W-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC807-40W-7 is usually 5 days.
3.What payment methods are accepted for BC807-40W-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC807-40W-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC807-40W-7?
BC807-40W-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC807-40W-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 BC807-40W-7?
For technical support, including BC807-40W-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC807-40W-7 requirements.
6.How does Aetrix verify that BC807-40W-7 is sourced from the original manufacturer or authorized distributors?
All BC807-40W-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 BC807-40W-7 meets industry standards.
7.What is the process for return or replacement of BC807-40W-7?
All BC807-40W-7 units undergo pre-shipment inspection (PSI). If there is an issue with BC807-40W-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 BC807-40W-7 part is unused and in its original packaging.
Return procedure for BC807-40W-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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