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

onsemi BC807-40LT1

Name: BC807-40LT1
Brand: onsemi
SKU: BC807-40LT1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC807-40LT1

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: -

Datasheet:: BC807-40LT1.pdf

Description:: TRANS PNP 45V 500MA SOT23

Quantity:: RFQ Add To RFQ list

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Inventory:21,000

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Product details

Overview

BC807-40LT1 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, V_CE = −1.0 V. It operates across −55°C to +150°C and supports automotive-grade applications per AEC-Q101.

For engineers reviewing the BC807-40LT1 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal behavior, SOT-23 terminal mapping, and validated alternative parts for discrete PNP switching and linear amplification use cases.

Technical Context

The BC807-40LT1 is a medium-power PNP bipolar junction transistor optimized for low-saturation switching and analog amplification in compact PCB layouts. Its h_FE range (250–600) enables stable current amplification with minimal base drive, while f_T = 100 MHz supports high-frequency signal handling up to audio and low-speed digital edge rates.

Thermal performance is defined for both FR-4 (R_JA = 436°C/W) and alumina substrate (R_JA = 417°C/W), supporting design flexibility in cost-sensitive and thermally demanding environments. The device's −6.0 V V_EBO rating allows reliable biasing in negative-rail configurations without emitter-base breakdown.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−45 V - Maximum collector-emitter voltage before breakdown; defines safe operating range in negative-rail switching circuits.
I_C	−500 mA - Continuous collector current capacity; supports load switching up to ~0.5 A with appropriate heatsinking.
h_FE	250–600 - DC current gain at I_C = −500 mA, V_CE = −1.0 V; ensures predictable base drive sizing for saturation control.
V_CE(sat)	≤ −0.7 V - Collector-emitter saturation voltage at I_C = −500 mA, I_B = −50 mA; minimizes conduction loss in saturated switch mode.
f_T	100 MHz - Current-gain bandwidth product at I_C = −10 mA, V_CE = −5.0 V; validates suitability for audio amplification and pulse shaping.
T_J	−55°C to +150°C - Junction temperature range; enables operation in under-hood automotive and industrial ambient conditions.

Pinout & Package

SOT-23 (Case 318, Style 6) surface-mount plastic package with gull-wing leads; 1.3 mm × 2.9 mm footprint, 1.1 mm height, and JEDEC-compliant thermal pad layout for manual or automated reflow assembly.

Pin/Terminal	Circuit Role	Design Meaning
1	Collector	Main current sink node; connects to negative supply rail or load return path in PNP switch configurations.
2	Base	Control input; requires negative-going drive relative to emitter to turn on; typical I_B = −50 mA for full saturation at I_C = −500 mA.
3	Emitter	Current source node; tied to higher-potential rail (e.g., ground or positive supply) in common-emitter or emitter-follower topologies.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive electronics including body control modules and sensor interfaces requiring PPAP compliance.
Pb-free, RoHS compliant	Meets EU Directive 2011/65/EU and halogen-free/BFR-free requirements for environmentally regulated end equipment.
High h_FE bin (250–600)	Reduces required base drive current and associated driver-stage power dissipation in high-gain amplifier or low-power switch designs.
Low V_CE(sat) (≤ −0.7 V)	Limits power loss to ≤350 mW at I_C = −500 mA, improving efficiency in battery-powered or thermally constrained systems.

Applications

Automotive Body Control	Industrial Sensor Interface
Use Scenario: Driving LED status indicators and relay coils in door module ECUs. IC Role / Device Role / Timing Role: PNP switch controlling 12 V loads with microcontroller GPIO-level base drive. Use Value: High h_FE enables direct MCU output control without external driver stage, reducing BOM count and board area.	Use Scenario: Level-shifting and current amplification for analog sensor outputs feeding ADC inputs. IC Role / Device Role / Timing Role: Emitter-follower buffer isolating sensitive analog sensors from noisy digital domains. Use Value: Low V_CE(sat) and wide T_J range ensure stable offset and gain over −40°C to +85°C industrial temperature profiles.
Consumer Power Management	Medical Diagnostic Equipment
Use Scenario: Enabling/disabling auxiliary power rails in portable ultrasound or patient monitor subsystems. IC Role / Device Role / Timing Role: High-side load switch managing 3.3 V or 5 V domain sequencing during power-up/down. Use Value: −45 V V_CEO provides margin against transient spikes in shared power distribution networks.	Use Scenario: Isolating isolated signal paths in ECG front-end protection circuitry. IC Role / Device Role / Timing Role: Discrete PNP clamp protecting op-amp inputs from overvoltage events. Use Value: −6.0 V V_EBO rating ensures robustness against reverse-bias transients during fault conditions.

Automotive Body Control

Industrial Sensor Interface

Use Scenario: Driving LED status indicators and relay coils in door module ECUs.

IC Role / Device Role / Timing Role: PNP switch controlling 12 V loads with microcontroller GPIO-level base drive.

Use Value: High h_FE enables direct MCU output control without external driver stage, reducing BOM count and board area.

Use Scenario: Level-shifting and current amplification for analog sensor outputs feeding ADC inputs.

IC Role / Device Role / Timing Role: Emitter-follower buffer isolating sensitive analog sensors from noisy digital domains.

Use Value: Low V_CE(sat) and wide T_J range ensure stable offset and gain over −40°C to +85°C industrial temperature profiles.

Consumer Power Management

Medical Diagnostic Equipment

Use Scenario: Enabling/disabling auxiliary power rails in portable ultrasound or patient monitor subsystems.

IC Role / Device Role / Timing Role: High-side load switch managing 3.3 V or 5 V domain sequencing during power-up/down.

Use Value: −45 V V_CEO provides margin against transient spikes in shared power distribution networks.

Use Scenario: Isolating isolated signal paths in ECG front-end protection circuitry.

IC Role / Device Role / Timing Role: Discrete PNP clamp protecting op-amp inputs from overvoltage events.

Use Value: −6.0 V V_EBO rating ensures robustness against reverse-bias transients during fault conditions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC807-40,115 (Nexperia)	Same SOT-23 package, identical V_CEO/I_C ratings, h_FE bin 250–630; R_JA = 450°C/W on FR-4 (slightly lower thermal efficiency).	Approved for industrial but not AEC-Q101; lacks automotive qualification documentation and PPAP support.	Select when automotive compliance is unnecessary and cost optimization is prioritized over qualification traceability.
MMBT4403 (ON Semiconductor)	Same PNP polarity, SOT-23 package, but lower h_FE (100–300), higher V_CE(sat) (≤ −0.75 V), and reduced I_C (−600 mA continuous, derated above 25°C).	Targeted at legacy designs where gain stability at low currents matters more than high-current saturation performance.	Choose only if existing layout uses MMBT4403 and marginal h_FE suffices; BC807-40LT1 offers superior gain and thermal margin.

Compared with BC807-40,115 and MMBT4403, the BC807-40LT1 delivers higher guaranteed h_FE, AEC-Q101 qualification, and tighter V_CE(sat) specification-making it the preferred choice for new automotive and high-reliability industrial designs requiring assured gain and thermal robustness.

Availability

BC807-40LT1 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interface circuits, and consumer power management systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for BC807-40LT1 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 electronics, delivering power management, analog, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.

The BC807-40LT1 belongs to onsemi's general-purpose bipolar transistor family designed for reliable, cost-effective switching and amplification in space-constrained, thermally variable environments-including under-hood automotive and factory-floor industrial applications.

FAQ

What is the maximum continuous collector current rating for BC807-40LT1?

The BC807-40LT1 has a maximum continuous collector current (I_C) rating of −500 mA at T_A = 25°C. Derating applies above 25°C per the thermal characteristics table: 1.8 mW/°C on FR-4 board. This rating ensures safe operation in sustained switching or linear amplification roles without exceeding junction temperature limits.

Is BC807-40LT1 qualified for automotive applications?

Yes, BC807-40LT1 is AEC-Q101 qualified and PPAP capable, as confirmed in the official onsemi datasheet revision 17 (March 2023). It meets stress test requirements for temperature cycling, humidity bias, and mechanical shock-making it suitable for non-safety-critical automotive electronics such as lighting controls and HVAC actuators.

What is the DC current gain (h_FE) range of BC807-40LT1 under standard test conditions?

The BC807-40LT1 exhibits h_FE = 250–600 when tested at I_C = −500 mA and V_CE = −1.0 V, per the Electrical Characteristics table. This high-gain bin distinguishes it from BC807-16LT1 (100–250) and BC807-25LT1 (160–400), enabling lower base drive requirements in high-current switching applications.

Does BC807-40LT1 have a specified current-gain bandwidth product (f_T)?

Yes, BC807-40LT1 has a minimum f_T of 100 MHz, measured at I_C = −10 mA, V_CE = −5.0 V, and f = 100 MHz. This value confirms its capability for audio-frequency amplification and fast-switching applications where gain-bandwidth trade-offs must be managed.

What is the pin configuration of BC807-40LT1 in the SOT-23 package?

The BC807-40LT1 uses standard SOT-23 pinout: Pin 1 = Collector, Pin 2 = Base, Pin 3 = Emitter. This matches JEDEC MO-203AA and is verified in the "SOT−23 CASE 318 STYLE 6" diagram on page 1 of the onsemi datasheet. No alternate pinouts exist for this variant.

BC807-40LT1 Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: -

Packaging:: Bulk

Product Status:: Obsolete

Transistor Type:: -

Current - Collector (Ic) (Max):: -

Voltage - Collector Emitter Breakdown (Max):: -

Vce Saturation (Max) @ Ib, Ic:: -

Current - Collector Cutoff (Max):: -

DC Current Gain (hFE) (Min) @ Ic, Vce:: -

Power - Max:: -

Frequency - Transition:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

BC807-40LT1 FAQ

1.How can I place an order for BC807-40LT1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BC807-40LT1 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 BC807-40LT1 reliable?

The price and inventory of BC807-40LT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC807-40LT1 is usually 5 days.

3.What payment methods are accepted for BC807-40LT1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC807-40LT1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC807-40LT1?

BC807-40LT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC807-40LT1 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 BC807-40LT1?

For technical support, including BC807-40LT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC807-40LT1 requirements.

6.How does Aetrix verify that BC807-40LT1 is sourced from the original manufacturer or authorized distributors?

All BC807-40LT1 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 BC807-40LT1 meets industry standards.

7.What is the process for return or replacement of BC807-40LT1?

All BC807-40LT1 units undergo pre-shipment inspection (PSI). If there is an issue with BC807-40LT1, 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 BC807-40LT1 part is unused and in its original packaging.

Return procedure for BC807-40LT1:

1.Submit a request within 90 days.

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

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