MPSW56RLRA Equivalent & Substitute Parts

Part Overview

The MPSW56RLRA is a PNP bipolar junction transistor manufactured by onsemi, rated for 80 V collector-emitter breakdown voltage and 500 mA maximum collector current. This device is packaged in a TO-92 through-hole configuration and is designed for general-purpose switching and amplification applications. The part is classified as obsolete, making identification of functionally equivalent substitutes necessary for ongoing design support and production continuity.

Substiute Parts

MPSW56RLRA

onsemiIn Stock: 17932MPSW56RLRA Datasheet

Current PartRFQ

MPSA56-AP

Micro Commercial CoIn Stock: 893MPSA56-AP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPSW56RLRA is determined by matching the following critical electrical and mechanical parameters:

Electrical Matching Criteria:

• Transistor polarity: PNP
• Maximum collector current: 500 mA
• Collector-emitter breakdown voltage: 80 V
• Transition frequency: 50 MHz
• Operating temperature range: -55°C to 150°C

Mechanical Matching Criteria:

• Mounting type: Through Hole
• Package type: TO-92-3 (TO-226 family)

The MPSA56-AP manufactured by Micro Commercial Co satisfies all critical electrical parameters and maintains identical mechanical compatibility. Both devices share the same base product number designation (MPSW56 and MPSA56 respectively, both within the MPSA/MPSW series family) and are pin-compatible in TO-92 through-hole applications.

Parameter Comparison

Engineering Selection Recommendations

MPSW56RLRA (onsemi): This part is classified as obsolete and carries RoHS non-compliant status. It remains suitable for legacy system maintenance and repair applications where original specifications must be preserved and RoHS compliance is not required.

MPSA56-AP (Micro Commercial Co): This substitute part is classified as obsolete but achieves ROHS3 compliance. The MPSA56-AP is suitable for new designs and production environments where RoHS compliance is mandated. The reduced maximum power dissipation (625 mW versus 1 W) and improved DC current gain characteristics position this device for applications with lower thermal requirements or where enhanced gain performance is beneficial.

Both parts maintain electrical compatibility across the primary switching and amplification parameters (collector current, breakdown voltage, transition frequency, and operating temperature range) and are mechanically interchangeable in TO-92 through-hole circuit board layouts.

Frequently Asked Questions (FAQ)

Q: Can MPSA56-AP directly replace MPSW56RLRA in existing circuits?

A: Yes, for circuits operating within the MPSA56-AP power dissipation limit of 625 mW. The devices are pin-compatible in TO-92 through-hole applications and share identical collector current (500 mA), breakdown voltage (80 V), transition frequency (50 MHz), and operating temperature range (-55°C to 150°C). Verify that circuit power dissipation does not exceed 625 mW.

Q: What is the significance of the different Vce saturation specifications?

A: The MPSA56-AP exhibits lower saturation voltage (250 mV at 10 mA, 100 mA) compared to the MPSW56RLRA (500 mV at 10 mA, 250 mA). This indicates improved switching performance and reduced power loss in saturation mode for the MPSA56-AP, making it advantageous for switching applications.

Q: Why does the MPSA56-AP have a lower maximum power rating?

A: The MPSA56-AP is rated for 625 mW maximum power dissipation compared to 1 W for the MPSW56RLRA. This difference reflects the thermal design of the specific device variant. Applications must ensure that circuit power dissipation remains within the 625 mW limit when using the MPSA56-AP.

Q: Are there packaging differences between these parts?

A: Both devices use identical TO-92-3 through-hole packaging. The MPSW56RLRA is supplied in standard packaging, while the MPSA56-AP is supplied in Cut Tape (CT) format. The physical package dimensions and pin configuration are identical, ensuring mechanical interchangeability on circuit boards.

Q: What is the compliance difference between these parts?

A: The MPSW56RLRA is RoHS non-compliant, while the MPSA56-AP is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the MPSA56-AP is the appropriate selection.

Q: How do the DC current gain specifications differ?

A: The MPSW56RLRA specifies a minimum DC current gain (hFE) of 50 at 250 mA collector current and 1 V Vce. The MPSA56-AP specifies a minimum hFE of 100 at 100 mA collector current and 1 V Vce. The MPSA56-AP demonstrates higher current gain, which may improve circuit performance in amplification applications.