MPSW56RLRPG Equivalent & Substitute Parts

Part Overview

The MPSW56RLRPG is a PNP bipolar junction transistor manufactured by onsemi, rated for 80 V collector-emitter breakdown voltage and 500 mA maximum collector current. The device is packaged in a TO-92 through-hole configuration and is rated for 1 W maximum power dissipation. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. Substitute parts must maintain electrical compatibility across critical parameters including voltage rating, current capacity, frequency response, and operating temperature range while accommodating different packaging technologies.

Substiute Parts

MPSW56RLRPG

onsemiIn Stock: 35439MPSW56RLRPG Datasheet

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MMBTA56LT1G

onsemiIn Stock: 416120MMBTA56LT1G Datasheet

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MPSA56-AP

Micro Commercial CoIn Stock: 893MPSA56-AP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MPSW56RLRPG are selected based on strict electrical parameter equivalence. All substitute candidates must satisfy the following criteria:

Mandatory Electrical Parameters:

• Transistor Type: PNP
• Collector-Emitter Breakdown Voltage (Max): 80 V
• Collector Current (Max): 500 mA
• Transition Frequency: 50 MHz
• Operating Temperature Range: -55°C to 150°C

Acceptable Variations:

• Power dissipation may differ due to packaging technology differences (through-hole versus surface mount)
• DC current gain (hFE) may vary within manufacturer specifications
• Collector cutoff current (ICBO) may differ
• Vce saturation characteristics may vary

Packaging Considerations: Substitutes are grouped into two categories: through-hole equivalents (same mounting technology) and surface-mount alternatives (different mounting technology requiring circuit board redesign).

Parameter Comparison

Engineering Selection Recommendations

MPSA56-AP (Through-Hole Equivalent): The MPSA56-AP maintains identical electrical specifications for voltage rating, current capacity, and frequency response. Both devices are classified as obsolete, indicating limited long-term availability. This part is suitable for direct replacement in existing through-hole designs without circuit board modifications. The MPSA56-AP exhibits improved DC current gain (100 versus 50) and lower collector cutoff current (100 nA versus 500 nA), resulting in enhanced switching characteristics. RoHS3 compliance is confirmed.

MMBTA56LT1G (Surface-Mount Alternative): The MMBTA56LT1G satisfies all mandatory electrical parameters and is classified as active product status, ensuring long-term availability and supply continuity. This part requires circuit board redesign due to SOT-23-3 surface-mount packaging versus TO-92 through-hole configuration. The reduced power dissipation rating (225 mW versus 1 W) reflects the smaller package size and thermal characteristics. Superior DC current gain (100 versus 50) and lower collector cutoff current (100 nA versus 500 nA) provide improved performance margins. RoHS3 compliance is confirmed.

Frequently Asked Questions (FAQ)

Q: Can MPSA56-AP be used as a direct replacement for MPSW56RLRPG?

A: Yes. Both devices are PNP transistors with identical 80 V breakdown voltage, 500 mA collector current rating, and 50 MHz transition frequency. Both operate across the -55°C to 150°C temperature range. The MPSA56-AP is packaged in TO-92 through-hole configuration, matching the original part. No circuit board modifications are required.

Q: What are the differences between MPSA56-AP and MMBTA56LT1G?

A: The primary difference is packaging technology. MPSA56-AP uses through-hole TO-92 mounting, while MMBTA56LT1G uses surface-mount SOT-23-3 packaging. MMBTA56LT1G has lower power dissipation (225 mW versus 625 mW) due to smaller package size. MMBTA56LT1G is active product status, while MPSA56-AP is obsolete. Both maintain equivalent electrical performance for voltage, current, and frequency specifications.

Q: Why is MMBTA56LT1G recommended despite lower power rating?

A: The MMBTA56LT1G power rating of 225 mW reflects the thermal characteristics of the SOT-23-3 package, not reduced electrical capability. The device maintains 500 mA collector current and 80 V breakdown voltage. Active product status ensures long-term availability and supply security. Circuit applications must verify thermal management is adequate for the specific design.

Q: Are there compliance differences between substitute parts?

A: MMBTA56LT1G carries RoHS3 compliance certification. MPSA56-AP also carries RoHS3 compliance. All three parts are REACH unaffected and classified under EAR99 export control. Moisture sensitivity level is 1 (unlimited) for all parts.

Q: Can MPSW56RLRPG be replaced with MMBTA56LT1G in existing designs?

A: Electrical substitution is valid. However, circuit board redesign is required due to different package footprints (TO-92 through-hole versus SOT-23-3 surface-mount). Design verification must confirm thermal management is adequate for the reduced power dissipation rating of the SOT-23-3 package.

Q: What is the inventory status of substitute parts?

A: MMBTA56LT1G has 416,100 pieces in stock with active product status. MPSA56-AP has 793 pieces in stock with obsolete product status. MPSW56RLRPG has 35,400 pieces in stock with obsolete product status.