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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

onsemi BC807-40CLT1

Name: BC807-40CLT1
Brand: onsemi
SKU: BC807-40CLT1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC807-40CLT1

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BC807-40CLT1.pdf

Description:: TRANS PNP 45V 0.8A SOT-23-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BC807-40CLT1 from onsemi is a PNP silicon general-purpose transistor in SOT-23 package, rated for −45 V V_CEO, −500 mA I_C, and DC current gain (h_FE) of 250–600 at I_C = −500 mA, used in low-voltage switching and linear amplification circuits such as power supply enable stages and level-shifting interfaces.

For engineers reviewing the BC807-40CLT1 datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed h_FE range at high collector current, V_CE(sat) ≤ −0.7 V under I_C/I_B = 10, thermal resistance of 417°C/W on alumina substrate, and Pb-free SOT-23 packaging compliance.

Technical Context

The BC807-40CLT1 operates as a medium-current PNP bipolar junction transistor with fixed gain binning (h_FE = 250–600), optimized for saturated switching and analog amplification in ambient temperatures from −55°C to +150°C. Its V_BE(on) is −1.2 V at I_C = −500 mA, and f_T is 100 MHz at I_C = −10 mA, supporting moderate-frequency signal handling.

Thermal performance is defined for two board conditions: 225 mW dissipation on FR-5 (R_JA = 556°C/W) and 300 mW on alumina (R_JA = 417°C/W). The device features V_(BR)CEO = −45 V, V_(BR)CBO = −50 V, and V_(BR)EBO = −5.0 V, enabling robust operation in industrial control and automotive body electronics.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−45 V - Maximum safe collector-emitter voltage before breakdown in open-base configuration
I_C (max)	−500 mA - Continuous collector current rating defining maximum load drive capability
h_FE	250–600 - Guaranteed DC current gain range at I_C = −500 mA, V_CE = −1.0 V, critical for bias stability
V_CE(sat)	≤ −0.7 V - Saturation voltage at I_C = −500 mA, I_B = −50 mA, determining conduction loss in switch mode
f_T	100 MHz - Transition frequency at I_C = −10 mA, V_CE = −5.0 V, indicating usable bandwidth for small-signal amplification
R_JA (alumina)	417°C/W - Junction-to-ambient thermal resistance on 0.4 × 0.3 in alumina substrate, guiding heatsinking requirements

Pinout & Package

SOT-23 (TO-236) package, 3-pin surface-mount, JEDEC case 318, style 6, with 1.00 mm nominal height and 2.90 mm length. RoHS-compliant, Pb-free option available (BC807-40CLT1G).

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Current-controlled input terminal; requires −50 mA base drive for full saturation at −500 mA collector load
2	Emitter	Common reference terminal for PNP operation; connected to higher potential rail in typical switch configurations
3	Collector	Output current terminal; sinks load current when base is forward-biased relative to emitter

Key Features

Feature	Design Value
Guaranteed h_FE binning	250–600 at I_C = −500 mA ensures predictable biasing in production-grade amplifier and switch designs
Low V_CE(sat)	≤ −0.7 V minimizes power dissipation and voltage drop in high-current switching applications
High breakdown ratings	V_(BR)CEO = −45 V and V_(BR)CBO = −50 V support reliable operation in 24 V industrial bus environments
Pb-free SOT-23 packaging	Complies with RoHS Directive 2011/65/EU and supports lead-free reflow soldering profiles

Applications

Industrial Power Sequencing	Automotive Body Control
Use Scenario: Enabling 12 V auxiliary rails in programmable logic controllers with precise timing and current limiting. IC Role / Device Role / Timing Role: PNP switch controlling power delivery to downstream regulators based on microcontroller GPIO signals. Use Value: V_CE(sat) ≤ −0.7 V ensures <150 mW conduction loss at 500 mA, reducing thermal stress in compact enclosures.	Use Scenario: Driving LED clusters and relay coils in door module assemblies requiring ESD-hardened discrete switching. IC Role / Device Role / Timing Role: General-purpose PNP driver interfacing between MCU I/O and inductive/resistive loads. Use Value: V_(BR)EBO = −5.0 V and built-in ESD protection support direct connection to vehicle harnesses without external clamping.
Consumer Appliance Control	Medical Diagnostic Instrumentation
Use Scenario: Controlling solenoid valves and display backlights in smart home appliances with tight BOM cost constraints. IC Role / Device Role / Timing Role: Low-cost, high-volume discrete switch replacing integrated load drivers where flexibility and repairability are prioritized. Use Value: SOT-23 footprint enables dense PCB layouts; h_FE binning eliminates need for individual gain trimming in mass production.	Use Scenario: Signal conditioning and isolation in portable blood glucose meters and pulse oximeters operating from coin-cell batteries. IC Role / Device Role / Timing Role: Linear amplifier stage for sensor front-end buffering with low noise and stable DC bias. Use Value: f_T = 100 MHz and h_FE ≥ 250 ensure accurate amplification of low-level analog sensor outputs up to 10 kHz.

Industrial Power Sequencing

Automotive Body Control

Use Scenario: Enabling 12 V auxiliary rails in programmable logic controllers with precise timing and current limiting.

IC Role / Device Role / Timing Role: PNP switch controlling power delivery to downstream regulators based on microcontroller GPIO signals.

Use Value: V_CE(sat) ≤ −0.7 V ensures <150 mW conduction loss at 500 mA, reducing thermal stress in compact enclosures.

Use Scenario: Driving LED clusters and relay coils in door module assemblies requiring ESD-hardened discrete switching.

IC Role / Device Role / Timing Role: General-purpose PNP driver interfacing between MCU I/O and inductive/resistive loads.

Use Value: V_(BR)EBO = −5.0 V and built-in ESD protection support direct connection to vehicle harnesses without external clamping.

Consumer Appliance Control

Medical Diagnostic Instrumentation

Use Scenario: Controlling solenoid valves and display backlights in smart home appliances with tight BOM cost constraints.

IC Role / Device Role / Timing Role: Low-cost, high-volume discrete switch replacing integrated load drivers where flexibility and repairability are prioritized.

Use Value: SOT-23 footprint enables dense PCB layouts; h_FE binning eliminates need for individual gain trimming in mass production.

Use Scenario: Signal conditioning and isolation in portable blood glucose meters and pulse oximeters operating from coin-cell batteries.

IC Role / Device Role / Timing Role: Linear amplifier stage for sensor front-end buffering with low noise and stable DC bias.

Use Value: f_T = 100 MHz and h_FE ≥ 250 ensure accurate amplification of low-level analog sensor outputs up to 10 kHz.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC807-40,115 (Nexperia)	Same h_FE bin (250–600), identical SOT-23 package, but V_CE(sat) specified at −0.75 V (max) vs. −0.7 V	Marginally higher saturation loss; suitable where ±0.05 V V_CE(sat) tolerance is acceptable	Select when sourcing diversification is required and minor V_CE(sat) increase does not impact thermal budget
MMBT4403LT1G (onsemi)	Lower h_FE (100–300), same V_CEO (−40 V), but V_CE(sat) = −0.75 V at I_C = −150 mA only	Not rated for continuous −500 mA; limited to lower-current switching and amplification	Choose only for sub-200 mA loads where gain consistency is less critical than cost

Compared with BC807-40CLT1, BC807-40,115 offers identical gain and package but slightly relaxed saturation voltage, while MMBT4403LT1G trades current capability and gain stability for broader availability at lower cost in light-load applications.

Availability

BC807-40CLT1 is available at Aetrix Electronics and suitable for industrial power sequencing, automotive body control, and consumer appliance control requiring stable component supply across multi-year production cycles.

Supply support for BC807-40CLT1 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient innovation for automotive, industrial, cloud, and medical applications.

The BC807 series belongs to onsemi's general-purpose bipolar transistor product line, designed for cost-sensitive, high-reliability discrete switching and amplification in space-constrained PCBs.

FAQ

What is the maximum continuous collector current rating for BC807-40CLT1?

The BC807-40CLT1 has a maximum continuous collector current (I_C) rating of −500 mA at T_A = 25°C. This rating assumes proper thermal management-on an alumina substrate, it supports 300 mW dissipation before derating. Exceeding this current without adequate heatsinking risks thermal runaway and permanent damage to the BC807-40CLT1.

Does BC807-40CLT1 have a guaranteed DC current gain range, and under what conditions?

Yes, BC807-40CLT1 guarantees h_FE = 250–600 when tested at I_C = −500 mA and V_CE = −1.0 V. This binning ensures consistent bias point behavior across production lots. The BC807-40CLT1 datasheet also specifies h_FE ≥ 40 at I_C = −100 mA, providing design margin for variable operating points.

What is the saturation voltage of BC807-40CLT1, and how is it measured?

The BC807-40CLT1 has a maximum V_CE(sat) of −0.7 V when I_C = −500 mA and I_B = −50 mA (I_C/I_B = 10). This condition reflects typical forced-beta switching use. The BC807-40CLT1 achieves this low saturation voltage due to optimized doping and geometry, directly reducing conduction losses in power control stages.

Is BC807-40CLT1 RoHS-compliant and compatible with lead-free reflow processes?

Yes, BC807-40CLT1 is RoHS-compliant and qualified for lead-free reflow soldering per J-STD-020. Its Pb-free SOT-23 package meets JEDEC standards for thermal cycling and mechanical reliability. The BC807-40CLT1G variant is the explicitly marked Pb-free version, but BC807-40CLT1 itself carries the same qualification per onsemi documentation.

How does the thermal resistance of BC807-40CLT1 vary between board types?

BC807-40CLT1 exhibits R_JA = 556°C/W on standard FR-5 board (1.0 × 0.75 in) and R_JA = 417°C/W on 0.4 × 0.3 in 99.5% alumina substrate. This 25% improvement reflects superior heat spreading in ceramic substrates. Designers must select the appropriate derating curve-1.8 mW/°C for FR-5 and 2.4 mW/°C for alumina-when calculating safe operating area for BC807-40CLT1.

BC807-40CLT1 Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Bulk

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 800 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:: 100 @ 100mA, 1V

Power - Max:: 310 mW

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

BC807-40CLT1 FAQ

1.How can I place an order for BC807-40CLT1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BC807-40CLT1 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 BC807-40CLT1 reliable?

The price and inventory of BC807-40CLT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC807-40CLT1 is usually 5 days.

3.What payment methods are accepted for BC807-40CLT1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC807-40CLT1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC807-40CLT1?

BC807-40CLT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC807-40CLT1 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 BC807-40CLT1?

For technical support, including BC807-40CLT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC807-40CLT1 requirements.

6.How does Aetrix verify that BC807-40CLT1 is sourced from the original manufacturer or authorized distributors?

All BC807-40CLT1 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 BC807-40CLT1 meets industry standards.

7.What is the process for return or replacement of BC807-40CLT1?

All BC807-40CLT1 units undergo pre-shipment inspection (PSI). If there is an issue with BC807-40CLT1, 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 BC807-40CLT1 part is unused and in its original packaging.

Return procedure for BC807-40CLT1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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