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

Nexperia USA Inc. BC807-40,235

Name: BC807-40,235
Brand: Nexperia USA Inc.
SKU: BC807-40,235
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC807-40,235

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: BC807-40,235.pdf

Description:: TRANS PNP 45V 0.5A TO-236AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BC807-40,235 from Nexperia is a PNP general-purpose bipolar junction transistor in SOT23 (TO-236AB) package, rated for −45 V V_CEO, −500 mA I_C, and DC current gain (h_FE) of 250–600 at V_CE = −1 V and I_C = −100 mA. It serves as a low-voltage switching or linear amplification device in compact consumer and industrial PCBs.

For engineers reviewing the BC807-40,235 datasheet, BC807-40,235 pinout, BC807-40,235 application, or BC807-40,235 equivalent, key selection criteria include guaranteed h_FE range, SOT23 thermal derating behavior, V_CEsat ≤ −700 mV at I_C = −500 mA/ I_B = −50 mA, and compatibility with standard reflow soldering footprints.

Technical Context

This PNP BJT operates in active, saturation, and cutoff regions with verified absolute maximum ratings: −45 V V_CEO, −500 mA continuous I_C, and 150 °C T_j. Its pulsed I_CM reaches −1 A (t_p ≤ 1 ms), supporting short-duration load switching.

Thermal resistance R_th(j-a) is 500 K/W on standard FR4 (single-sided copper), dropping to 362 K/W with 1 cm² collector pad - enabling predictable power dissipation up to 250 mW at 25 °C ambient and derated linearly above.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−45 V - Maximum safe collector-emitter voltage before breakdown under open-base conditions
I_C	−500 mA - Continuous DC collector current rating at 25 °C ambient, defining steady-state switching capacity
h_FE	250–600 - Guaranteed DC current gain range at V_CE = −1 V, I_C = −100 mA, enabling precise base drive calculation
V_CEsat	≤ −700 mV - Collector-emitter saturation voltage at I_C = −500 mA and I_B = −50 mA, limiting conduction loss in switch mode
f_T	80 MHz - Transition frequency at V_CE = −5 V, I_C = −10 mA, supporting audio-frequency amplification and fast switching
C_c	5 pF - Collector capacitance at V_CB = −10 V, influencing high-frequency response and Miller effect in amplifier stages

Pinout & Package

SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; 1.9 mm × 1.3 mm footprint, 1.1 mm height, and standard reflow-compatible solder land pattern (0.6 mm pad width, 0.5 mm pitch).

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control terminal accepting forward-biased current to enable conduction between emitter and collector
2	Emitter (E)	Current source terminal in PNP configuration; connected to higher potential rail in common-emitter switch layouts
3	Collector (C)	Current sink terminal; routed to load or ground return path, with thermal pad connection critical for >250 mW operation

Key Features

Feature	Design Value
Three h_FE grades	BC807-40 provides 250–600 h_FE, enabling consistent bias design across production batches without recalculating base resistors
High-current capability	Rated −500 mA I_C supports driving LEDs, relays, and small solenoids directly from microcontroller GPIOs with appropriate base buffering
Low V_CEsat	≤ −700 mV at full rated current minimizes power loss and self-heating in saturated switch applications
Standard SOT23 footprint	Compatible with industry-standard pick-and-place equipment and IPC-7351B reflow profiles, reducing assembly cost and yield risk

Applications

LED Driver Circuit

Microcontroller I/O Expander

Use Scenario: Driving 20 mA white LEDs from 3.3 V MCU outputs via single-transistor low-side switch.

IC Role / Device Role / Timing Role: PNP configured as emitter-follower buffer to invert logic and supply sufficient current where MCU GPIO cannot sink >10 mA.

Use Value: Enables direct LED control without external level shifters; V_CEsat ≤ −700 mV ensures ≥2.6 V forward drop across LED at full brightness.

Use Scenario: Extending GPIO count by enabling/disabling peripheral ICs (e.g., sensors, DACs) using discrete on/off control lines.

IC Role / Device Role / Timing Role: PNP used in high-side switch configuration to pull V_CC to peripherals only when base is actively pulled low.

Use Value: Provides clean power gating with <1 µA leakage (I_CBO ≤ −100 nA), preventing standby current drain in battery-powered systems.

DC Motor Speed Control

Audio Signal Amplifier Stage

Use Scenario: PWM-driven 5 V brushed DC motor (max 300 mA stall current) in portable instrumentation.

IC Role / Device Role / Timing Role: PNP BJT operating in saturation/cutoff as low-side switch synchronized to 20 kHz PWM signal.

Use Value: f_T = 80 MHz ensures minimal switching delay (<100 ns rise/fall), preserving PWM fidelity and reducing audible motor whine.

Use Scenario: Single-stage preamplifier for electret microphone output (10 mV RMS, 2–20 kHz bandwidth) into ADC input.

IC Role / Device Role / Timing Role: Common-emitter amplifier biased at I_C = −1 mA with 250–600 h_FE ensuring stable gain across temperature and unit variance.

Use Value: C_c = 5 pF and f_T = 80 MHz support flat frequency response up to 15 kHz, meeting voice-band fidelity requirements.

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
BC807-40,215	Same electrical specs but marked with code '5C' and shipped in 10,000-unit tape/reel (vs. 3,000-unit for ,235); identical thermal and pinout characteristics	No functional difference; selected when larger reel size aligns with SMT line setup or volume procurement needs	Choose ,215 for high-volume automated assembly where reel change frequency must be minimized
MMBT3906LT1G	h_FE = 100–300 (lower max gain); V_CEsat = −400 mV typical at I_C = −50 mA (not rated at −500 mA); same SOT23 package	Less suitable for high-current switching (>200 mA); better for low-power signal inversion or bias networks where gain consistency is secondary	Select only if design operates below 100 mA and prioritizes lower V_CEsat over gain headroom and thermal margin

Compared with BC807-40,235, the ,215 variant offers identical performance with optimized packaging logistics, while MMBT3906LT1G trades off current capability and gain range for marginally lower saturation voltage at light loads - making it unsuitable as a drop-in replacement in 500 mA applications.

Availability

BC807-40,235 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller I/O expansion, and DC motor control requiring stable component supply, consistent h_FE grading, and SOT23 assembly compatibility.

Supply support for BC807-40,235 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

Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-grade and industrial-standard components.

The BC807 series belongs to Nexperia's general-purpose transistor product line, engineered for cost-sensitive, space-constrained applications demanding robust parametric consistency and manufacturability in high-mix SMT environments.

FAQ

What is the maximum allowable junction temperature for BC807-40,235?

The absolute maximum junction temperature (T_j) is 150 °C per IEC 60134 limiting values. Operation beyond this threshold risks permanent degradation of h_FE and increased leakage. Derating is required above 25 °C ambient, with R_th(j-a) = 500 K/W on standard FR4 PCB guiding thermal design.

Does BC807-40,235 support automotive applications?

No. Per Nexperia's revision history (Rev. 8, July 2022), the BC807 series is explicitly designated non-automotive qualified. It lacks AEC-Q101 stress testing and automotive-specific reliability validation. For automotive use, Nexperia recommends its -Q qualified alternatives such as BC807-40Q.

How does the marking code '5C%' identify BC807-40,235?

The marking '5C%' on the top surface indicates BC807-40 grade ('5C'), with '%' serving as a placeholder for the manufacturing site code. This matches Table 5 in the datasheet and distinguishes it from BC807-16 (5A%), BC807-25 (5B%), and BC807 (5D%).

Can BC807-40,235 replace BC807-25 in an existing design?

Yes, with verification. BC807-40 offers higher minimum h_FE (250 vs. 160) and wider gain range (250–600 vs. 160–400), improving noise immunity and bias stability. However, ensure V_CEsat and thermal margins remain acceptable, as both share identical voltage/current ratings and package.

BC807-40,235 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

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

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 (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 250 @ 100mA, 1V

Power - Max:: 250 mW

Frequency - Transition:: 80MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BC807-40,235 FAQ

1.How can I place an order for BC807-40,235 through Aetrix?

Please submit a Request for Quotation (RFQ) for BC807-40,235 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 BC807-40,235 reliable?

The price and inventory of BC807-40,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC807-40,235 is usually 5 days.

3.What payment methods are accepted for BC807-40,235?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC807-40,235 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC807-40,235?

BC807-40,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC807-40,235 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 BC807-40,235?

For technical support, including BC807-40,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC807-40,235 requirements.

6.How does Aetrix verify that BC807-40,235 is sourced from the original manufacturer or authorized distributors?

All BC807-40,235 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 BC807-40,235 meets industry standards.

7.What is the process for return or replacement of BC807-40,235?

All BC807-40,235 units undergo pre-shipment inspection (PSI). If there is an issue with BC807-40,235, 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 BC807-40,235 part is unused and in its original packaging.

Return procedure for BC807-40,235:

1.Submit a request within 90 days.

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

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