MPSA56_D75Z Equivalent & Substitute Parts

Part Overview

The MPSA56_D75Z is a PNP bipolar junction transistor manufactured by onsemi, designed for general-purpose switching and amplification applications. This device features an 80 V collector-emitter breakdown voltage rating and a maximum collector current of 500 mA, housed in a TO-92-3 through-hole package. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

MPSA56_D75Z

onsemiIn Stock: 1005MPSA56_D75Z Datasheet

Current PartRFQ

MPSA56-AP

Micro Commercial CoIn Stock: 893MPSA56-AP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPSA56_D75Z is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Parameters:

• Transistor polarity (PNP)
• Maximum collector current (500 mA)
• Collector-emitter breakdown voltage (80 V)
• DC current gain minimum specification (100 @ 100 mA, 1 V)
• Maximum power dissipation (625 mW)
• Transition frequency (50 MHz)
• Operating temperature range (-55°C to 150°C)

Mechanical Parameters:

• Through-hole mounting configuration
• TO-92-3 package compatibility

The MPSA56-AP manufactured by Micro Commercial Co meets all specified electrical parameters and maintains mechanical compatibility through identical TO-92-3 package geometry. Both devices share the same base product number (MPSA56) and are classified as obsolete, indicating they represent the same functional design across manufacturers.

Parameter Comparison

Engineering Selection Recommendations

MPSA56_D75Z (onsemi):

• Original design specification
• Product status: Obsolete
• REACH Status: REACH Unaffected
• ECCN: EAR99
• Inventory availability: 946 pieces

MPSA56-AP (Micro Commercial Co):

• Parametric equivalent alternative
• Product status: Obsolete
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected
• ECCN: EAR99
• Inventory availability: 793 pieces

Both parts satisfy identical electrical specifications and mechanical requirements. The MPSA56-AP provides RoHS3 compliance certification, which may be required for certain applications or regulatory jurisdictions. The Vce saturation specification of the MPSA56-AP (250 mV) is marginally higher than the MPSA56_D75Z (200 mV) but remains within acceptable operating parameters for standard switching applications. Selection between these parts should be based on compliance requirements, inventory availability, and application-specific regulatory mandates.

Frequently Asked Questions (FAQ)

Q: Can the MPSA56-AP directly replace the MPSA56_D75Z in existing designs?

A: Yes. Both devices are PNP transistors with identical maximum ratings for collector current (500 mA), collector-emitter breakdown voltage (80 V), power dissipation (625 mW), and transition frequency (50 MHz). They share the same TO-92-3 package geometry and operating temperature range (-55°C to 150°C). The MPSA56-AP is a direct parametric equivalent.

Q: What is the significance of the Vce saturation difference between these parts?

A: The MPSA56_D75Z specifies a maximum Vce saturation of 200 mV at the stated bias conditions, while the MPSA56-AP specifies 250 mV. This 50 mV difference represents a minor variation in saturation behavior. For applications requiring tight saturation specifications, circuit performance should be evaluated against the specific design margin requirements.

Q: Are both parts suitable for new designs?

A: Both the MPSA56_D75Z and MPSA56-AP are classified as obsolete products. For new designs, consultation with component suppliers regarding long-term availability and consideration of modern alternatives is recommended. However, for maintenance and repair of existing equipment, these parts remain functionally equivalent.

Q: What is the difference between the packaging designations "Cut Tape (CT)" and the onsemi packaging?

A: Cut Tape (CT) refers to the supplier packaging format for the MPSA56-AP, indicating the component is supplied on cut tape rather than in bulk or reel form. The actual component package (TO-92-3) is identical between both parts. This distinction affects only the procurement and handling format, not the electrical or mechanical characteristics of the transistor itself.

Q: Do both parts meet the same compliance standards?

A: Both parts are REACH Unaffected and classified as EAR99 for export control purposes. The MPSA56-AP carries additional RoHS3 compliance certification. For applications requiring RoHS compliance, the MPSA56-AP is the appropriate selection.

Q: Can these parts be used interchangeably in PCB designs?

A: Yes. Both devices use the TO-92-3 through-hole package with identical lead geometry and spacing. PCB footprints designed for one part accommodate the other without modification. Soldering and assembly processes remain unchanged.