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

Nexperia USA Inc. BC807-40W-QX

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

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Part No.:: BC807-40W-QX

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: SC-70, SOT-323

Datasheet:: BC807-40W-QX.pdf

Description:: TRANS PNP 45V 0.5A SOT-323

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BC807-40W-Q from Nexperia is a PNP general-purpose bipolar junction transistor (BJT) in SOT323 (SC-70) package, rated for −45 V V_CEO, −500 mA continuous collector current, and DC current gain (h_FE) of 250–600 at V_CE = −1 V and I_C = −100 mA. It serves as a compact, AEC-Q101-qualified switching or amplification device in space-constrained automotive and industrial control circuits.

For engineers reviewing the BC807-40W-Q datasheet, BC807-40W-Q pinout, BC807-40W-Q application, or BC807-40W-Q equivalent, key selection criteria include its −45 V breakdown rating, low 700 mV V_CE(sat) at I_C = −500 mA/I_B = −50 mA, AEC-Q101 qualification, SOT323 footprint compatibility, and h_FE binning consistency across temperature.

Technical Context

This PNP BJT operates with open-base collector-emitter breakdown voltage of −45 V and emitter-base breakdown voltage of −5 V, supporting robust biasing in negative-rail signal conditioning and load-switching topologies. Its pulsed h_FE range (250–600) is specified under tightly controlled conditions: V_CE = −1 V, I_C = −100 mA, T_amb = 25 °C, pulse width ≤ 300 μs, duty cycle ≤ 0.02.

Thermal performance is defined for two PCB mounting configurations: standard FR4 footprint (R_th(j-a) = 625 K/W) and enhanced 1 cm² collector pad (R_th(j-a) = 431 K/W), enabling thermal-aware layout decisions in high-density automotive modules.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−45 V - Maximum safe collector-emitter voltage with base open; defines rail tolerance in high-side switch designs.
I_C	−500 mA - Continuous DC collector current rating; supports medium-power switching without forced cooling.
h_FE	250–600 - DC current gain at V_CE = −1 V, I_C = −100 mA; ensures predictable base drive sizing across production lots.
V_CE(sat)	−700 mV max - Collector-emitter saturation voltage at I_C = −500 mA, I_B = −50 mA; minimizes conduction loss in saturated-switch applications.
P_tot	290 mW - Total power dissipation with 1 cm² copper pad; sets practical thermal limits for PCB-level heat spreading.
f_T	80 MHz - Transition frequency at V_CE = −5 V, I_C = −10 mA; supports audio-frequency and low-speed digital switching.
C_c	5 pF typical - Collector capacitance at V_CB = −10 V; influences high-frequency response and switching speed in amplifier stages.

Pinout & Package

SOT323 (SC-70) plastic surface-mounted package: 1.35 mm × 1.75 mm footprint, 0.65 mm pitch, 0.9 mm height; optimized for automated reflow assembly and high-density routing.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Current-controlled input node; requires series resistor to limit I_B and ensure reliable saturation under worst-case h_FE.
2	Emitter (E)	Common reference terminal for PNP operation; connected to higher potential rail in high-side switch configurations.
3	Collector (C)	Output current path; electrically isolated from PCB ground plane when used in floating-load or level-shifted driver circuits.

Key Features

Feature	Design Value
AEC-Q101 qualified	Stress-tested per Automotive Electronics Council standard for discrete semiconductors; enables use in engine control, body electronics, and ADAS subsystems.
Three h_FE bins	BC807-40W-Q provides tight 250–600 gain spread-superior to BC807-16W-Q (100–250) and BC807-25W-Q (160–400)-for consistent gain-critical bias networks.
Low V_CE(sat)	≤ −700 mV at I_C = −500 mA/I_B = −50 mA reduces power loss by >30% vs. legacy PNP transistors in 12 V automotive loads.
SOT323 thermal design	431 K/W R_th(j-a) with 1 cm² collector pad enables 2× higher continuous current capability than standard footprint mounting.
Robust ESD rating	HBM ≥ 8 kV (per AEC-Q101 test flow); eliminates need for external protection in moderate-noise cabin environments.

Applications

Automotive Door Module

Industrial PLC Output Stage

Use Scenario: Driving resistive and inductive window lift motor loads in door control units.

IC Role / Device Role / Timing Role: PNP high-side switch controlling 12 V supply to motor windings during up/down commands.

Use Value: −45 V V_CEO withstands load-dump transients; −700 mV V_CE(sat) limits self-heating during sustained 300 mA stall current.

Use Scenario: Isolating microcontroller GPIO pins from 24 V DC output channels in programmable logic controllers.

IC Role / Device Role / Timing Role: Level-shifting interface transistor translating 3.3 V logic to 24 V sink outputs.

Use Value: 250–600 h_FE ensures stable base drive across temperature; SOT323 footprint saves board area in multi-channel I/O modules.

USB-C Power Delivery Feedback

Medical Patient Monitor Sensor Bias

Use Scenario: Enabling/disabling auxiliary 5 V rails in USB-C PD controller feedback loops.

IC Role / Device Role / Timing Role: Low-leakage PNP switch isolating reference voltage dividers during standby mode.

Use Value: −100 nA I_CBO at 25 °C prevents reference drift; AEC-Q101 qualification supports automotive-grade PD implementations.

Use Scenario: Providing precision bias current to photodiode or thermistor front-end sensors in portable diagnostics equipment.

IC Role / Device Role / Timing Role: Constant-current source configured with emitter degeneration resistor.

Use Value: Tight h_FE bin (250–600) enables ±2% current matching across production units without trimming.

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
BC807-40-7-F (Diodes Inc.)	Same SOT23 package (not SOT323); V_CEO = −45 V, h_FE = 250–630, but R_th(j-a) = 650 K/W on standard FR4.	Requires PCB redesign due to larger SOT23 footprint and lower thermal efficiency; not drop-in for space-constrained layouts.	Select only if SOT23 is already standardized in your design and thermal margin exceeds 15 °C.
MMBT3906LT1G (ON Semi)	SOT23 package; V_CEO = −40 V, h_FE = 100–300, V_CE(sat) = −400 mV at I_C = −10 mA - lower gain and voltage rating.	Suitable for low-current signal switching (<100 mA), but insufficient for 500 mA automotive loads or −45 V transients.	Use only in non-automotive, low-power analog stages where gain and voltage headroom are less critical.

Compared with BC807-40W-Q, BC807-40-7-F trades thermal performance for broader distributor availability, while MMBT3906LT1G sacrifices voltage margin and gain consistency for cost-sensitive consumer applications-neither matches the AEC-Q101 reliability and SOT323 density of the original.

Availability

BC807-40W-Q is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output stages, medical sensor biasing, and USB-C power delivery feedback circuits requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BC807-40W-Q 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 essential semiconductors-including logic, discretes, MOSFETs, and ESD protection devices-with manufacturing rooted in process technology and automotive-grade quality systems.

The BC807W-Q series belongs to Nexperia's AEC-Q101-qualified general-purpose transistor product line, engineered specifically for automotive interior electronics, industrial control interfaces, and space-constrained power management where robustness and small-footprint reliability are mandatory.

FAQ

What is the maximum allowable junction temperature for BC807-40W-Q?

The absolute maximum junction temperature (T_j) is 150 °C, as defined in the limiting values table. Operation above this threshold risks permanent degradation of h_FE and increased leakage. Derating curves in Figure 1 confirm usable power dissipation drops to zero at 150 °C ambient when using the standard footprint, so thermal design must maintain T_j ≤ 150 °C under worst-case load and ambient conditions.

Does BC807-40W-Q support wave soldering?

Yes-Nexperia provides dedicated wave soldering footprint data (Figure 18) for SOT323, specifying 3.65 mm × 2.1 mm solder land dimensions, 2.575 mm preferred transport direction, and 1.8 mm solder resist occupied area. The device is qualified for both reflow and wave processes, but wave soldering requires precise conveyor speed and preheat control to avoid thermal shock to the plastic package.

How does the h_FE of BC807-40W-Q vary with temperature?

h_FE increases with rising temperature: Figure 12 shows typical gain rising from ~300 at −55 °C to ~650 at 150 °C (at I_C = −100 mA). This positive temperature coefficient must be accounted for in bias-stable amplifier designs-emitter degeneration resistors or feedback networks are recommended to prevent thermal runaway in linear applications.

Is BC807-40W-Q pin-compatible with BC807-25W-Q or BC807-16W-Q?

Yes-all BC807W-Q variants share identical SOT323 package, pinout (B-E-C), and mechanical dimensions. The only difference is h_FE binning: BC807-40W-Q (250–600), BC807-25W-Q (160–400), and BC807-16W-Q (100–250). Substitution is electrically valid if the target circuit tolerates the wider or narrower gain spread, but h_FE-dependent timing or current-setting accuracy may shift.

BC807-40W-QX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: BC807W-Q

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 (ICBO)

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

Power - Max:: 200 mW

Frequency - Transition:: 80MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-323

BC807-40W-QX FAQ

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

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

The price and inventory of BC807-40W-QX 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-QX is usually 5 days.

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

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

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC807-40W-QX?

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

Once your BC807-40W-QX 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-QX?

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

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

All BC807-40W-QX 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-QX meets industry standards.

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

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

Return procedure for BC807-40W-QX:

1.Submit a request within 90 days.

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

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