Nexperia USA Inc. BC807-40LZ

Overview

BC807-40LZ from Nexperia is a PNP general-purpose bipolar junction transistor (BJT) 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 operates across −55 °C to +150 °C ambient and supports automotive-grade switching in power management and signal inversion circuits.

For engineers reviewing the BC807-40LZ datasheet, BC807-40LZ pinout, BC807-40LZ application, or BC807-40LZ equivalent, this page delivers verified electrical parameters, thermal limits, AEC-Q101 qualification status, SOT23 pin mapping, and real-world use cases in industrial control and automotive subsystems - all grounded in Nexperia's official Rev. 1 product data sheet.

Technical Context

This PNP BJT uses silicon planar epitaxial technology with a base-emitter junction optimized for stable DC current gain across temperature. Its −45 V collector-emitter breakdown voltage and −500 mA continuous collector current support medium-power linear and switching operation in low-voltage DC rails.

The device features pulsed h_FE testing (t_p ≤ 300 μs, duty δ ≤ 0.02), enabling accurate small-signal amplification modeling. Thermal resistance R_th(j-a) is 500 K/W on FR4 PCB, confirming suitability for thermally constrained SMT layouts without forced cooling.

Key Specifications

Pinout & Package

SOT23 (TO-236AB) plastic surface-mount package with 3 leads, 1.9 mm × 1.1 mm footprint, and 0.95 mm height. Standard JEDEC-compliant outline per Figure 16 in datasheet Rev. 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC807-40LZ, BC807-40 offers identical performance with minor packaging logistics variance, while MMBT4403 trades AEC-Q101 compliance and higher h_FE for broader commercial availability - making BC807-40LZ the optimal choice for automotive and high-reliability industrial designs requiring guaranteed gain and stress qualification.

Availability

BC807-40LZ is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output stages, and medical sensor biasing requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for BC807-40LZ 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, with leadership in logic, discretes, and MOSFETs for automotive, industrial, and mobile markets.

The BC807L series belongs to Nexperia's general-purpose bipolar transistor product line, engineered specifically for robust, cost-effective switching and amplification in space-constrained SMT applications demanding AEC-Q101 compliance.

FAQ

What is the maximum allowable base current for BC807-40LZ in continuous operation?

The absolute maximum peak base current is −200 mA per datasheet Table 6, but continuous operation must respect the 250 mW total power dissipation limit. At typical V_BE ≈ −1.2 V, sustained I_B should not exceed −200 mA to avoid exceeding P_tot; practical design uses −50 mA for I_C = −500 mA saturation, ensuring thermal safety on FR4 PCB.

Does BC807-40LZ support operation at −40 °C ambient temperature?

Yes - the specified ambient temperature range is −55 °C to +150 °C (Table 5). Electrical characteristics including h_FE, V_CE(sat), and leakage currents are characterized down to −40 °C in Figures 11–15, confirming full functionality in cold-environment applications such as outdoor industrial controls and automotive engine compartments.

How does the SOT23 package of BC807-40LZ compare thermally to the SOT323 variant (BC807-40LW)?

BC807-40LZ in SOT23 has R_th(j-a) = 500 K/W on FR4 PCB (Table 7), while BC807-40LW in SOT323 has 625 K/W. This 25% lower thermal resistance makes the SOT23 version preferable for higher-power operation or tighter thermal budgets, especially when driving loads near 500 mA continuously.

Is BC807-40LZ pin-compatible with BC807-25L or BC807-16L?

Yes - all BC807L variants share identical SOT23 pinout (Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector) and mechanical footprint. The only differences are h_FE binning (250–600 vs 160–400 vs 100–250) and marking code; no layout or schematic changes are needed when substituting between them in existing designs.