MPSA92 Equivalent & Substitute Parts

Part Overview

The MPSA92 is a PNP bipolar junction transistor manufactured by NXP USA Inc., rated for 300 V collector-emitter breakdown voltage and 100 mA maximum collector current in a TO-92-3 through-hole package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The MPSA92 is suitable for general-purpose switching and amplification applications requiring moderate voltage and current ratings with low-frequency operation up to 50 MHz.

Substiute Parts

MPSA92,126

NXP USA Inc.In Stock: 1035MPSA92,126 Datasheet

Current PartRFQ

2N6520TA

onsemiIn Stock: 46092N6520TA Datasheet

MFR RecommendedRFQ

KSP92TA

onsemiIn Stock: 85129KSP92TA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPSA92 is determined by strict compatibility across the following electrical and mechanical parameters:

Primary Compatibility Criteria:

• Transistor polarity: PNP type required
• Package type: TO-92-3 through-hole configuration
• Voltage rating: Collector-emitter breakdown voltage must equal or exceed 300 V
• Current rating: Collector current capacity must equal or exceed 100 mA
• Saturation voltage: Vce(sat) characteristics must match or be superior
• DC current gain: hFE minimum must equal or exceed 25 @ specified conditions
• Power dissipation: Maximum power rating must equal or exceed 625 mW
• Operating temperature: Must support 150°C junction temperature
• Compliance: RoHS3 compliance and REACH unaffected status required

The substitute parts listed below meet all primary compatibility criteria and are electrically and mechanically interchangeable with the MPSA92 within the specified parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

KSP92TA (onsemi) is the primary substitute for the MPSA92. This part maintains electrical equivalence across all critical parameters: identical 300 V collector-emitter breakdown voltage, matching DC current gain characteristics (25 @ 30 mA, 10 V), identical saturation voltage (500 mV @ 2 mA, 20 mA), and equivalent 50 MHz transition frequency. The KSP92TA offers superior current handling capacity (500 mA versus 100 mA), providing design margin for applications requiring higher collector current. Both parts share identical package configuration (TO-92-3) and thermal rating (150°C). The KSP92TA is active product status with full RoHS3 compliance and REACH unaffected certification, ensuring long-term availability and regulatory compliance.

2N6520TA (onsemi) is an alternative substitute suitable for applications where higher voltage rating (350 V) and increased transition frequency (200 MHz) provide design advantages. This part exceeds the MPSA92 voltage specification and offers significantly higher current capacity (500 mA). However, the 2N6520TA exhibits higher saturation voltage (1 V @ 5 mA, 50 mA) compared to the MPSA92 (500 mV @ 2 mA, 20 mA), which may impact switching performance in saturation-mode applications. The 2N6520TA is suitable for designs where saturation voltage increase is acceptable and higher frequency operation is beneficial. This part maintains TO-92-3 package compatibility, 150°C thermal rating, RoHS3 compliance, and REACH unaffected status.

Both substitute parts are active products with established supply chains, providing superior availability compared to the obsolete MPSA92.

Frequently Asked Questions (FAQ)

Q: Can the KSP92TA directly replace the MPSA92 in existing designs?

A: Yes. The KSP92TA is electrically and mechanically equivalent to the MPSA92 across all specified parameters. Both parts feature identical 300 V collector-emitter breakdown voltage, matching DC current gain (25 @ 30 mA, 10 V), identical saturation voltage (500 mV @ 2 mA, 20 mA), and equivalent 50 MHz transition frequency. The TO-92-3 package pinout is identical, enabling direct board-level substitution without circuit modification.

Q: What is the primary advantage of the 2N6520TA over the KSP92TA?

A: The 2N6520TA provides higher voltage rating (350 V versus 300 V) and significantly higher transition frequency (200 MHz versus 50 MHz). These characteristics are beneficial for high-frequency switching applications or designs requiring voltage margin above 300 V. However, the 2N6520TA exhibits higher saturation voltage (1 V versus 500 mV), which increases power dissipation in saturation-mode switching circuits.

Q: Are both substitute parts available in the same packaging as the MPSA92?

A: Yes. Both the KSP92TA and 2N6520TA are supplied in TO-92-3 through-hole packages with formed leads, identical to the MPSA92 package configuration. Both parts are suitable for through-hole PCB assembly without modification to existing footprints or assembly processes.

Q: Do the substitute parts meet the same regulatory compliance as the MPSA92?

A: Yes. Both the KSP92TA and 2N6520TA are RoHS3 compliant and REACH unaffected, matching the compliance status of the MPSA92. Both parts are suitable for applications requiring regulatory compliance with RoHS3 and REACH requirements.

Q: Which substitute part should be selected for low-frequency switching applications?

A: The KSP92TA is the optimal choice for low-frequency switching applications. This part maintains identical electrical characteristics to the MPSA92, including 50 MHz transition frequency, 300 V voltage rating, and 500 mV saturation voltage. The KSP92TA provides direct functional equivalence without introducing design changes or performance variations.

Q: Can the MPSA92 be used interchangeably with the KSP92TA in new designs?

A: The KSP92TA is the recommended choice for new designs. The MPSA92 is classified as obsolete product status, limiting long-term availability and supply continuity. The KSP92TA is active product status with established supply chains, ensuring reliable procurement for production volumes and future design support.