onsemi PN2907ARLRA

Overview

PN2907ARLRA from onsemi is a PNP silicon general-purpose transistor in TO-92 package, rated for –60 V V_CEO, –600 mA I_C, and 625 mW P_D at T_A = 25°C, commonly used in low-power switching and linear amplification circuits such as LED drivers and signal inversion stages.

For engineers reviewing the PN2907ARLRA datasheet, pinout, applications, or equivalent options, key selection criteria include verified V_CEO/I_C ratings, h_FE range at multiple bias points, saturation voltage under defined I_C/I_B, thermal resistance (R_θJA = 200°C/W), and TO-92 mechanical compatibility with legacy through-hole designs.

Technical Context

This discrete PNP bipolar junction transistor operates in active, saturation, and cutoff regions with DC current gain (h_FE) ranging from 75 to 300 depending on collector current (–0.1 mA to –150 mA) and V_CE = –10 V. Its f_T of 200 MHz supports high-speed switching applications up to tens of MHz.

Switching performance is characterized by t_on ≤ 45 ns, t_off ≤ 100 ns, and storage time t_s ≤ 80 ns under specified test conditions (V_CC = –30 V, I_C = –150 mA, I_B = –15 mA). Thermal design must account for R_θJC = 83.3°C/W and R_θJA = 200°C/W.

Key Specifications

Pinout & Package

PN2907ARLRA uses the TO-92 (Case 29, Style 1) plastic through-hole package with standardized lead spacing and mechanical dimensions per ON Semiconductor's CASE 29–11 specification.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPSA92 and BC557B, PN2907ARLRA offers balanced V_CEO, I_C, and h_FE for mid-range switching-making it optimal for 12–48 V industrial controls where both voltage margin and current capacity matter, while avoiding over-specification or insufficient drive capability.

Availability

PN2907ARLRA is available at Aetrix Electronics and suitable for LED driver circuits, relay interface modules, signal inversion stages, and low-frequency amplifier designs requiring stable component supply and long-term manufacturability.

Supply support for PN2907ARLRA 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power and signal management solutions for automotive, industrial, cloud, and consumer markets.

PN2907ARLRA belongs to onsemi's general-purpose bipolar transistor product line, designed for cost-sensitive, high-reliability through-hole applications including power management, interface logic, and analog signal conditioning in industrial and legacy equipment.

FAQ

What is the maximum continuous collector current rating for PN2907ARLRA?

The PN2907ARLRA has a maximum continuous collector current (I_C) rating of –600 mAdc at T_A = 25°C. Derating applies above 25°C at 5.0 mW/°C for ambient-limited operation. This rating defines the highest steady-state load current the device can safely conduct in common-emitter configurations without exceeding thermal limits.

Does PN2907ARLRA support high-speed switching applications?

Yes, PN2907ARLRA supports high-speed switching with documented t_on ≤ 45 ns, t_off ≤ 100 ns, and t_s ≤ 80 ns under standard test conditions (V_CC = –30 V, I_C = –150 mA, I_B = –15 mA). Its f_T of 200 MHz further confirms usability in pulse-width modulation and digital logic interfacing up to several megahertz.

What is the pin configuration for PN2907ARLRA in the TO-92 package?

PN2907ARLRA uses TO-92 Style 1 pinout: Pin 1 is Emitter, Pin 2 is Base, and Pin 3 is Collector. This matches the industry-standard arrangement for PNP transistors in this package, ensuring mechanical and electrical compatibility with existing PCB footprints designed for PN2907A and equivalent devices.

How does the DC current gain (h_FE) of PN2907ARLRA vary with operating conditions?

PN2907ARLRA exhibits h_FE = 75–300 depending on collector current: minimum 75 at I_C = –0.1 mA, rising to 100–300 at I_C = –150 mA (V_CE = –10 V). Gain decreases at higher currents (50 at I_C = –500 mA), requiring careful base drive design to maintain saturation across the full load range of PN2907ARLRA.

Is PN2907ARLRA suitable for automotive applications?

PN2907ARLRA operates across –55°C to +150°C junction temperature and meets industrial reliability standards, but it is not AEC-Q101 qualified. It may be used in non-safety-critical automotive subsystems (e.g., interior lighting, fan control) where customer validation confirms robustness; however, for ASIL-compliant systems, AEC-Q101-certified alternatives should be selected instead of PN2907ARLRA.