onsemi MPS2907ARLREG

Overview

MPS2907ARLREG 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-voltage switching and amplifier stages in power management and signal conditioning circuits.

For engineers reviewing the MPS2907ARLREG datasheet, pinout, applications, or equivalent options, key selection criteria include verified V_CEO/I_C ratings, h_FE range at multiple bias points, V_CE(sat) at –150 mA/–15 mA drive, thermal resistance (R_θJA = 200°C/W), and TO-92 pin configuration (Emitter–Base–Collector, Style 1).

Technical Context

The MPS2907ARLREG operates as a discrete PNP bipolar junction transistor with fixed current gain characteristics across collector currents from –0.1 mA to –500 mA, supporting linear amplification and saturated switching modes. Its f_T of 200 MHz enables use in medium-frequency analog and pulse applications up to ~50 MHz with appropriate biasing.

It features low leakage (I_CBO ≤ –0.01 µA at 150°C), tight V_(BR)CEO = –60 V tolerance, and defined saturation voltages (V_CE(sat) ≤ –0.4 V at I_C/I_B = 10), making it suitable for reliable off-state isolation and low-loss on-state conduction in DC-coupled control paths.

Key Specifications

Pinout & Package

Package: TO-92 (Case 29, Style 1), through-hole, epoxy-molded plastic housing with 3 leads. Standard lead spacing and mechanical dimensions per ON Semiconductor 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 MPS2907ARLREG, the 2N2907A offers higher guaranteed h_FE but slightly worse saturation voltage, while the PN2907A matches all key specs and pinout exactly-making it the most seamless alternative for continuity-driven designs.

Availability

MPS2907ARLREG is available at Aetrix Electronics and suitable for relay driver circuits, LED current sinking, level-shifting interfaces, and analog signal amplification requiring stable component supply and long-term industrial availability.

Supply support for MPS2907ARLREG 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 focused on energy-efficient electronics, delivering power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and IoT applications.

The MPS2907ARLREG belongs to onsemi's general-purpose bipolar transistor product line, designed for cost-sensitive, high-reliability discrete switching and amplification in industrial control, power supplies, and interface circuits.

FAQ

What is the maximum continuous collector current rating for the MPS2907ARLREG?

The MPS2907ARLREG has a maximum continuous collector current (I_C) rating of –600 mA at T_A = 25°C. This value decreases with rising ambient temperature due to its 5.0 mW/°C derating factor. The device maintains this rating under standard TO-92 mounting conditions without heatsinking, making it suitable for moderate-power switching tasks such as relay or LED control where peak loads remain within this limit. Always verify thermal margin using R_θJA = 200°C/W in actual PCB layouts.

Does the MPS2907ARLREG support operation at elevated temperatures?

Yes, the MPS2907ARLREG is specified for operation across a junction temperature range of –55°C to +150°C. Its I_CBO remains ≤ –0.01 µA even at +150°C, confirming stable off-state behavior in harsh environments. The device's thermal resistance (R_θJC = 83.3°C/W) also supports conduction cooling when mounted on metal-core PCBs or heat-spreading copper areas. These characteristics make the MPS2907ARLREG viable for under-hood automotive modules or industrial motor controls where ambient temperatures exceed 85°C.

What is the pin configuration for the MPS2907ARLREG in TO-92 package?

The MPS2907ARLREG uses TO-92 Style 1 pinout: Pin 1 is Emitter, Pin 2 is Base, and Pin 3 is Collector-viewed with flat side facing outward and leads pointing downward. This matches industry-standard 2N2907A and PN2907A pinouts, enabling direct PCB footprint reuse. The marking "MPS2907A" appears on the flat face, and date code (YWW) follows below. No orientation-dependent variants exist for this specific suffix (RLREG), confirming consistent mechanical and electrical alignment across reels.

How does the current gain (h_FE) of the MPS2907ARLREG vary with collector current?

The MPS2907ARLREG exhibits h_FE = 75–300 depending on operating point: minimum 75 at I_C = –0.1 mA, 100 at –1.0 mA and –10 mA, 100 at –150 mA, and 50 at –500 mA. This non-monotonic behavior reflects optimized doping profiles for both low-current sensing and medium-current switching. Designers should reference Figure 3 in the official datasheet to select bias points that maintain h_FE ≥ 100 for predictable base drive, especially in linear amplifier or precision switch applications where gain stability is critical.

Is the MPS2907ARLREG suitable for high-frequency switching applications?

The MPS2907ARLREG has an f_T of 200 MHz and documented switching times (t_on = 45 ns, t_off = 100 ns), supporting clean operation up to ~10–20 MHz in well-designed circuits with controlled layout and proper base drive. However, its C_ibo = 30 pF and C_obo = 8.0 pF limit ultimate speed in high-impedance nodes. For >50 MHz switching or RF amplification, dedicated RF transistors (e.g., MMBT2907A or SMMBT2907A) are recommended. The MPS2907ARLREG remains optimal for digital logic interfacing, PWM dimming, and sub-10 MHz signal conditioning.