onsemi MPSA63RLRAG

Overview

MPSA63RLRAG from onsemi is a PNP silicon Darlington transistor in TO-92 package, rated for −30 V C-E and C-B voltage, −500 mA continuous collector current, and 625 mW power dissipation at 25°C ambient. It delivers DC current gain (h_FE) ≥5000 at −10 mA I_C, −5 V V_CE, and supports high-frequency operation up to 125 MHz f_T, commonly used in low-power switching and linear amplification stages of industrial control interfaces.

For engineers reviewing the MPSA63RLRAG datasheet, pinout, applications, or equivalent options, key selection criteria include verified Darlington gain structure, −30 V breakdown rating, TO-92 mechanical compatibility, thermal resistance (R_θJA = 200°C/W), and Pb-free tape-and-reel packaging (2000 units/reel) for automated assembly.

Technical Context

The MPSA63RLRAG implements a monolithic PNP Darlington pair with integrated base-emitter resistor network absent - requiring external base drive control. Its high h_FE (≥5000) enables microampere-level base current to switch 100 mA loads, while V_CE(sat) ≤ −1.5 V at I_C = −100 mA / I_B = −0.1 mA ensures low conduction loss in saturated switching.

Designed for operation across −55°C to +150°C junction temperature range, it features R_θJC = 83.3°C/W and safe operating area (SOA) limited by thermal and secondary breakdown constraints - validated per Figure 5 with 100 ms pulse capability up to −300 mA at −2 V V_CE.

Key Specifications

Pinout & Package

Package: TO-92 (Case 29-11), straight-lead or bent-lead configuration, Pb-free, JEDEC-compliant plastic housing with 3.18–4.19 mm body width (C dimension).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPSA63RLRAG, MPSA64RLRAG offers higher guaranteed gain for reduced base drive sensitivity, while BCV61B,115 provides SMT compatibility at the cost of fundamental architecture change - requiring full circuit revalidation for gain, saturation, and thermal behavior.

Availability

MPSA63RLRAG is available at Aetrix Electronics and suitable for industrial relay drivers, low-voltage linear amplifiers, LED current sinks, and power supply enable circuits requiring stable component supply with RoHS-compliant packaging and consistent parametric performance.

Supply support for MPSA63RLRAG 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 management, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and IoT applications.

The MPSA63RLRAG belongs to onsemi's general-purpose bipolar transistor product line, engineered for cost-sensitive, high-reliability discrete switching and amplification in industrial controls, power supplies, and interface circuits.

FAQ

What is the maximum continuous collector current rating for MPSA63RLRAG?

The MPSA63RLRAG is rated for −500 mA continuous collector current at T_A = 25°C. This rating decreases linearly by 5 mW/°C above ambient temperature due to its 625 mW total device dissipation limit. Derating must be applied in enclosed or high-temperature environments to maintain reliability and avoid thermal runaway.

Does MPSA63RLRAG have an integrated base-emitter resistor?

No, the MPSA63RLRAG does not include internal base-emitter resistors. It is a bare Darlington transistor requiring external base biasing - either active drive or passive pull-up/pull-down networks - to define operating state. This differs from digital transistors (e.g., MMBT2222AL) and allows full design flexibility in gain and switching speed trade-offs.

What is the guaranteed DC current gain (h_FE) of MPSA63RLRAG at −10 mA collector current?

The MPSA63RLRAG guarantees h_FE ≥ 5000 at I_C = −10 mA and V_CE = −5.0 V, per the official onsemi datasheet (Publication Order Number: MPSA63/D). This minimum value is tested and binned during production, ensuring predictable base drive requirements across all units.

Can MPSA63RLRAG be used in place of MPSA64RLRAG?

MPSA63RLRAG may substitute for MPSA64RLRAG in applications tolerant of lower minimum h_FE (5000 vs. 10,000), but not vice versa without verifying base drive margin. Both share identical pinout, package, voltage/current ratings, and thermal characteristics - making them mechanically interchangeable, though electrical validation is required for gain-critical designs.

What packaging format does MPSA63RLRAG ship in?

MPSA63RLRAG ships in Pb-free TO-92 tape-and-reel packaging containing 2000 units per reel, compliant with JEDEC standard J-STD-020 moisture sensitivity level (MSL) 1. The reel orientation follows onsemi's standard pin-1 (emitter) lead-out configuration, verified for compatibility with Fuji, Yamaha, and Universal Instruments pick-and-place equipment.