Nexperia USA Inc. BC807-40LWX

Overview

BC807-40LWX from Nexperia is a PNP general-purpose bipolar junction transistor in SOT323 (SC-70) 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 delivers low V_CE(sat) of −700 mV at I_C = −500 mA / I_B = −50 mA and supports automotive-grade reliability per AEC-Q101. It is used in low-voltage load switching and signal amplification in space-constrained consumer and industrial PCBs.

For engineers reviewing the BC807-40LWX datasheet, BC807-40LWX pinout, BC807-40LWX application, or BC807-40LWX equivalent, this page provides verified electrical parameters, thermal limits, SOT323 terminal mapping, real-world use cases, and qualified alternatives - all aligned with Nexperia's Rev. 1 (Jan 2018) product data sheet.

Technical Context

This PNP BJT operates in active and saturation regions with guaranteed h_FE ≥ 250 at −100 mA collector current and −1 V V_CE, enabling predictable current-controlled switching. Its −7 V V_EBO and −50 V V_CBO support robust biasing in negative-rail circuits, while its 200 mW P_tot rating reflects thermal derating on FR4 PCBs.

The device exhibits stable gain across temperature (−40 °C to 150 °C), with typical f_T of 80 MHz and C_c of 5.5 pF, making it suitable for audio-frequency amplification and digital logic interfacing-not RF or high-speed switching.

Key Specifications

Pinout & Package

SOT323 (SC-70) plastic surface-mounted package: 1.3 mm × 2.1 mm footprint, 0.95 mm height, 3-terminal leadless construction optimized for reflow soldering on dense PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC807-40LWX, BC807-40LT offers superior thermal dissipation in SOT23 but sacrifices board space, while MMBT4403 trades voltage rating, gain range, and automotive compliance for lower unit cost-making BC807-40LWX the optimal balance for space-constrained, automotive-qualified, medium-power switching.

Availability

BC807-40LWX is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and portable LED lighting systems requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.

Supply support for BC807-40LWX 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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.

The BC807L/BC807LW series is part of Nexperia's general-purpose transistor portfolio, designed specifically for cost-effective, space-efficient switching and amplification in high-volume production applications where AEC-Q101 compliance and parametric consistency are critical.

FAQ

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

The BC807-40LWX is rated for −500 mA continuous collector current (I_C) at T_amb ≤ 25 °C on a standard FR4 PCB. At higher ambient temperatures, derating applies per the 200 mW total power dissipation limit and 625 K/W thermal resistance; for example, at 70 °C ambient, maximum I_C drops to approximately −350 mA to maintain safe junction temperature.

Is BC807-40LWX pin-compatible with BC807-40L?

Yes-both share identical pinout (1: Base, 2: Emitter, 3: Collector) and SOT323/SOT23 pin numbering, but they differ in package: BC807-40LX uses SOT323 (SC-70), while BC807-40L uses SOT23 (TO-236AB). Footprint and soldering profiles are not interchangeable; PCB layout must match the specific variant's mechanical dimensions and thermal pad requirements.

Does BC807-40LWX support pulsed operation beyond its DC ratings?

Yes-it supports −1 A peak collector current (I_CM) for single pulses ≤1 ms, provided duty cycle remains ≤2% (δ ≤ 0.02) and pulse width ≤300 μs for h_FE and V_CE(sat) specifications. This enables brief surge handling in relay driving or motor commutation, but thermal accumulation must be verified per application duty cycle.

How does the AEC-Q101 qualification impact BC807-40LWX's use in non-automotive designs?

AEC-Q101 qualification certifies robustness against temperature cycling, humidity, mechanical shock, and ESD-benefiting any high-reliability application. In industrial or medical equipment, it provides extended lifetime confidence and reduced field failure risk, though it does not imply functional safety certification (e.g., ISO 26262) or suitability for life-critical systems.