MPSA05RLRAG Equivalent & Substitute Parts

Part Overview

The MPSA05RLRAG is an NPN bipolar junction transistor manufactured by onsemi, designed for general-purpose switching and amplification applications. This device features a 60 V collector-emitter breakdown voltage, 500 mA maximum collector current, and 625 mW power dissipation in a Through Hole TO-92 package. The part is currently listed as obsolete, making identification of equivalent and substitute components essential for design continuity and procurement planning. Active alternatives with identical or superior electrical characteristics are available to support ongoing production and maintenance requirements.

Substiute Parts

MPSA05RLRAG

onsemiIn Stock: 3151MPSA05RLRAG Datasheet

Current PartRFQ

MPSA05RA

onsemiIn Stock: 4548MPSA05RA Datasheet

DirectRFQ

MMBTA05LT1G

onsemiIn Stock: 305480MMBTA05LT1G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPSA05RLRAG is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Transistor type (NPN)
• Voltage - Collector Emitter Breakdown (60 V minimum)
• Current - Collector maximum (500 mA minimum)
• DC Current Gain (hFE) minimum (100 @ 100mA, 1V)
• Vce Saturation characteristics (250mV @ 10mA, 100mA)
• Frequency - Transition (100 MHz minimum)
• Operating temperature range (-55°C to 150°C)

Mechanical Compatibility Criteria:

• Package type and pin configuration
• Mounting method (Through Hole or Surface Mount)

Substitute parts are grouped into two categories:

Direct Substitutes (Pin-Compatible Through Hole): Parts maintaining identical TO-92-3 Through Hole packaging with formed leads, enabling direct replacement without PCB modification.

Functional Equivalents (Alternative Mounting): Parts with identical electrical specifications but different package types (Surface Mount), requiring PCB redesign or adapter solutions.

Parameter Comparison

Engineering Selection Recommendations

MPSA05RA (Direct Substitute): The MPSA05RA is the primary direct substitute for the MPSA05RLRAG. Both devices share identical electrical specifications and TO-92-3 Through Hole packaging, enabling pin-for-pin replacement without PCB modification. The MPSA05RA is currently in active production status with ROHS3 compliance certification, providing long-term supply assurance and regulatory alignment. This part is the recommended choice for applications requiring Through Hole mounting and direct component replacement.

MMBTA05LT1G (Functional Equivalent): The MMBTA05LT1G provides electrical equivalence with identical voltage, current, and gain specifications. This part differs in mounting technology (Surface Mount SOT-23-3 package) and power dissipation rating (225 mW versus 625 mW). The MMBTA05LT1G is suitable for new designs utilizing surface mount assembly processes or for applications where the reduced power rating is acceptable. This part is currently in active production with ROHS3 compliance and significantly higher inventory availability (305,400 units).

Selection Criteria:

• For existing Through Hole designs: Select MPSA05RA
• For new surface mount designs: Select MMBTA05LT1G
• For applications requiring maximum power dissipation (625 mW): Select MPSA05RA or MPSA05RLRAG
• For applications with power dissipation below 225 mW: Either part is acceptable

Frequently Asked Questions (FAQ)

Q: Can MPSA05RA directly replace MPSA05RLRAG without PCB modification?

A: Yes. Both parts feature identical TO-92-3 Through Hole packaging with the same pin configuration, electrical specifications, and operating characteristics. Direct replacement is possible without PCB redesign.

Q: What is the primary difference between MPSA05RA and MMBTA05LT1G?

A: The primary difference is packaging and mounting technology. MPSA05RA uses Through Hole TO-92-3 mounting, while MMBTA05LT1G uses Surface Mount SOT-23-3 mounting. Additionally, MMBTA05LT1G has a lower maximum power rating (225 mW versus 625 mW). Electrical specifications for voltage, current, gain, and frequency are identical.

Q: Is MMBTA05LT1G suitable for high-power applications?

A: MMBTA05LT1G is suitable for applications requiring power dissipation up to 225 mW. For applications requiring the full 625 mW power rating, MPSA05RA or MPSA05RLRAG must be used.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both MPSA05RA and MMBTA05LT1G are ROHS3 compliant, meeting current environmental and regulatory requirements.

Q: What is the inventory status of substitute parts?

A: MPSA05RA has 4,452 units in stock. MMBTA05LT1G has significantly higher availability with 305,400 units in stock, providing greater supply security for high-volume applications.

Q: Can MMBTA05LT1G be used in Through Hole applications?

A: No. MMBTA05LT1G requires surface mount assembly. Through Hole applications must use MPSA05RA or MPSA05RLRAG. Adapter solutions or PCB redesign would be required to use MMBTA05LT1G in Through Hole designs.

Q: Are the operating temperature ranges identical across all three parts?

A: Yes. All three parts operate across the identical temperature range of -55°C to 150°C (TJ).

Q: What is the base product number for these transistors?

A: MPSA05RLRAG and MPSA05RA share the base product number MPSA05. MMBTA05LT1G uses the base product number MMBTA05. The base product number identifies the core device family and electrical characteristics.