MPSA05_D26Z Equivalent & Substitute Parts

Part Overview

The MPSA05_D26Z is an NPN bipolar junction transistor manufactured by onsemi, designed for general-purpose switching and amplification applications. This device features a maximum collector current of 500 mA, collector-emitter breakdown voltage of 60 V, and maximum power dissipation of 625 mW in a through-hole TO-92-3 package. The MPSA05_D26Z is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. Substitute parts must maintain electrical and mechanical compatibility while offering current availability and active product status.

Substiute Parts

MPSA05_D26Z

onsemiIn Stock: 1178MPSA05_D26Z Datasheet

Current PartRFQ

MPSA05RA

onsemiIn Stock: 4548MPSA05RA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPSA05_D26Z is determined by strict equivalence across all critical electrical parameters and mechanical compatibility. The substitute part MPSA05RA maintains identical specifications for collector current (500 mA maximum), collector-emitter breakdown voltage (60 V), saturation voltage (250 mV @ 10mA, 100mA), DC current gain (100 minimum @ 100mA, 1V), power dissipation (625 mW), transition frequency (100 MHz), and operating temperature range (-55°C to 150°C). Both parts utilize the same through-hole TO-92-3 package configuration with formed leads, ensuring mechanical and thermal compatibility in existing circuit board layouts.

The key parameters that determine substitution eligibility are:

• Transistor type (NPN)
• Maximum collector current (500 mA)
• Collector-emitter breakdown voltage (60 V)
• Saturation voltage characteristics (250 mV @ 10mA, 100mA)
• DC current gain minimum (100 @ 100mA, 1V)
• Maximum power dissipation (625 mW)
• Transition frequency (100 MHz)
• Package type (TO-92-3 through-hole)
• Operating temperature range (-55°C to 150°C)

Parameter Comparison

Engineering Selection Recommendations

The MPSA05RA is the direct active equivalent for the obsolete MPSA05_D26Z. Both parts are manufactured by onsemi and share identical electrical specifications across all critical parameters including collector current, breakdown voltage, saturation characteristics, current gain, power dissipation, and frequency response. The MPSA05RA maintains the same through-hole TO-92-3 package configuration, ensuring direct compatibility with existing printed circuit board layouts and assembly processes.

The MPSA05RA offers the advantage of active product status, ensuring continued availability and supply chain reliability. The part is RoHS3 compliant, meeting current environmental and regulatory requirements. Both parts maintain REACH unaffected status and EAR99 export classification, providing consistent compliance across applications.

The collector cutoff current specification differs between the two parts (100 nA for MPSA05_D26Z versus 100 µA for MPSA05RA), representing a minor leakage current variation that does not affect functional equivalence in standard switching and amplification applications. This difference is within acceptable tolerances for general-purpose NPN transistor applications.

Frequently Asked Questions (FAQ)

Q: Can MPSA05RA be used as a direct replacement for MPSA05_D26Z in existing designs?

A: Yes. The MPSA05RA is electrically and mechanically equivalent to the MPSA05_D26Z. Both parts feature identical maximum ratings for collector current (500 mA), breakdown voltage (60 V), power dissipation (625 mW), and operating temperature range (-55°C to 150°C). The through-hole TO-92-3 package is identical, allowing direct substitution without circuit board modifications.

Q: What is the difference in collector cutoff current between these parts?

A: The MPSA05_D26Z specifies a maximum collector cutoff current of 100 nA, while the MPSA05RA specifies 100 µA. This represents a leakage current variation of approximately 1000:1. For most switching and amplification applications, this difference is negligible and does not affect circuit performance.

Q: Are there packaging differences between MPSA05_D26Z and MPSA05RA?

A: Both parts use the through-hole TO-92-3 package with formed leads (TO-226AA designation). The primary packaging difference is the supplier device package format: MPSA05_D26Z is supplied in standard TO-92-3 configuration, while MPSA05RA is supplied in cut tape (CT) format. This affects only the delivery and handling method, not the component itself or its circuit compatibility.

Q: What is the product status difference, and why does it matter?

A: The MPSA05_D26Z is classified as obsolete, indicating discontinued production and limited availability. The MPSA05RA is active, ensuring ongoing manufacturing and reliable supply chain access. For new designs and production continuity, the MPSA05RA is the recommended selection.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the MPSA05_D26Z and MPSA05RA maintain REACH unaffected status and EAR99 export classification. The MPSA05RA additionally carries RoHS3 compliance certification, meeting current environmental standards for electronic components.

Q: Can MPSA05RA be used in high-frequency applications?

A: Yes. The MPSA05RA maintains a transition frequency of 100 MHz, identical to the MPSA05_D26Z. This frequency rating supports general-purpose switching and amplification applications within the specified bandwidth.