Nexperia USA Inc. PMBT2907A,235

Overview

PMBT2907A from Nexperia is a PNP bipolar junction transistor (BJT) designed for general-purpose switching and linear amplification in compact SOT23 packages. It delivers −60 V V_CEO, −600 mA I_C, DC current gain (h_FE) of 100–300 at −150 mA, and AEC-Q101 qualification for automotive use - deployed in load switching circuits for body control modules.

For engineers reviewing the PMBT2907A datasheet, PMBT2907A pinout, PMBT2907A application, or PMBT2907A equivalent, this page provides verified package mapping (TO-236AB/SOT23), validated terminal roles (Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector), confirmed thermal resistance (R_th(j-a) = 500 K/W on FR4), and real-world switching timing (t_off = 365 ns).

Technical Context

This PNP BJT operates with open-base collector-emitter breakdown voltage of −60 V and emitter-base breakdown of −5 V, enabling robust operation in negative-rail switching topologies. Its h_FE remains stable across −55 °C to +150 °C ambient, supporting automotive under-hood environments.

Switching performance is defined by t_d = 12 ns, t_r = 30 ns, t_s = 300 ns, and t_f = 65 ns under standardized test conditions (I_Bon = −15 mA, I_Boff = +15 mA). V_CEsat reaches −1.6 V at −500 mA / −50 mA drive, confirming suitability for medium-current saturated switch designs.

Key Specifications

Pinout & Package

Package: TO-236AB (SOT23), surface-mount plastic package with 3 leads, 1.4 mm × 2.9 mm footprint, 1.1 mm height, and standard reflow-compatible solder pads.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP switching transistor applications.

Compared with PMBT2907A, MMBT2907A offers identical performance with alternate sourcing, while PMBT2907 trades 20 V voltage headroom for lower cost - making it viable only in non-automotive, low-transient environments.

Availability

PMBT2907A is available at Aetrix Electronics and suitable for automotive body electronics, industrial relay interfaces, DC-DC bias networks, and LED current regulation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for PMBT2907A 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 roots in NXP's standard product division and independent operation since 2017.

This part belongs to Nexperia's general-purpose bipolar transistor product line, engineered for cost-effective, AEC-Q101-compliant switching and amplification in automotive and industrial control systems.

FAQ

Is PMBT2907A pin-compatible with PMBT2222A?

No. PMBT2907A is a PNP transistor with pinout Base–Emitter–Collector (1–2–3), while PMBT2222A is its NPN complement with pinout Emitter–Base–Collector (1–2–3) in the same SOT23 package. Swapping them without circuit revision causes polarity inversion and functional failure.

What is the maximum allowable base current for continuous operation?

The absolute maximum peak base current is −200 mA (single pulse, t_p ≤ 1 ms), but continuous base current must be limited by power dissipation. At 25 °C ambient, with P_tot = 250 mW and V_BEsat ≈ −2.6 V, sustained I_B should not exceed −96 mA to avoid thermal runaway.

Can PMBT2907A replace BC807 in existing designs?

Yes, with verification. Both are AEC-Q101-qualified PNP SOT23 transistors, but BC807 has −45 V V_CEO and h_FE = 100–630. PMBT2907A's −60 V rating improves transient margin, though its tighter h_FE range may require base resistor adjustment for equivalent saturation.

Does PMBT2907A support pulsed operation above 600 mA?

Yes - up to −800 mA peak collector current (I_CM) is permitted per limiting values, provided pulse width and duty cycle maintain junction temperature ≤150 °C. Derating curves show usable pulse energy up to 1 ms at full I_CM on standard FR4 PCB.