MPSA56_D26Z Equivalent & Substitute Parts

Part Overview

The MPSA56_D26Z is a PNP bipolar junction transistor manufactured by onsemi, rated for 80 V collector-emitter breakdown voltage and 500 mA maximum collector current. This device is packaged in a TO-92-3 through-hole configuration and is suitable for general-purpose switching and amplification applications in the -55°C to 150°C operating temperature range.

The MPSA56_D26Z is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Current - Collector (Ic) (Max)	500	mA
Voltage - Collector Emitter Breakdown (Max)	80	V
Vce Saturation (Max) @ Ib, Ic	200 mV @ 10 mA, 100 mA	—
Current - Collector Cutoff (Max)	100	nA
DC Current Gain (hFE) (Min) @ Ic, Vce	100 @ 100 mA, 1 V	—
Power - Max	625	mW
Frequency - Transition	50	MHz
Operating Temperature Range	-55 to 150	°C (TJ)
Mounting Type	Through Hole	—
Package / Case	TO-92-3 (TO-226AA)	—

Substitute Part Grouping Explanation

Substitution of the MPSA56_D26Z is determined by electrical and mechanical parameter equivalence. The following criteria establish substitution validity:

Electrical Parameters (Must Match or Exceed):

Transistor type: PNP
Maximum collector current (Ic): 500 mA minimum
Collector-emitter breakdown voltage (Vce(br)): 80 V minimum
DC current gain (hFE): 100 minimum at specified conditions
Maximum power dissipation: 625 mW minimum
Transition frequency: 50 MHz minimum
Operating temperature range: -55°C to 150°C minimum

Mechanical Parameters (Must Match):

Mounting type: Through Hole
Package type: TO-92-3 or equivalent TO-226-3 configuration

The MPSA56-AP manufactured by Micro Commercial Co meets all specified electrical and mechanical parameters and is therefore classified as a direct substitute for the MPSA56_D26Z.

Parameter Comparison

Parameter	MPSA56_D26Z (onsemi)	MPSA56-AP (Micro Commercial Co)	Match Status
Transistor Type	PNP	PNP	Equivalent
Current - Collector (Ic) (Max)	500 mA	500 mA	Equivalent
Voltage - Collector Emitter Breakdown (Max)	80 V	80 V	Equivalent
Vce Saturation (Max) @ Ib, Ic	200 mV @ 10 mA, 100 mA	250 mV @ 10 mA, 100 mA	Compatible
Current - Collector Cutoff (Max)	100 nA	100 nA	Equivalent
DC Current Gain (hFE) (Min) @ Ic, Vce	100 @ 100 mA, 1 V	100 @ 100 mA, 1 V	Equivalent
Power - Max	625 mW	625 mW	Equivalent
Frequency - Transition	50 MHz	50 MHz	Equivalent
Operating Temperature Range	-55°C to 150°C (TJ)	-55°C to 150°C (TJ)	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	TO-92-3 (TO-226AA)	TO-92-3 (TO-226AA)	Equivalent

Engineering Selection Recommendations

MPSA56-AP (Micro Commercial Co) is a direct electrical and mechanical substitute for the MPSA56_D26Z. Both devices are classified as obsolete and share identical core electrical specifications across all critical parameters.

The MPSA56-AP exhibits a marginally higher Vce saturation value (250 mV versus 200 mV at the specified test conditions). This difference remains within acceptable tolerances for general-purpose switching and amplification applications and does not preclude substitution.

The MPSA56-AP carries RoHS3 compliance certification, whereas the MPSA56_D26Z compliance status is not specified in the provided data. Both devices are REACH Unaffected and classified under ECCN EAR99.

Selection between these parts should be based on availability, packaging format (the MPSA56-AP is supplied in Cut Tape format), and compliance requirements specific to the end application.

Frequently Asked Questions (FAQ)

Q: Can the MPSA56-AP directly replace the MPSA56_D26Z in existing designs?

A: Yes. The MPSA56-AP meets all electrical and mechanical specifications required for direct substitution. Both devices are PNP transistors with identical maximum ratings for collector current, breakdown voltage, power dissipation, and operating temperature range. The TO-92-3 package configuration is identical.

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

A: The MPSA56-AP exhibits a Vce saturation of 250 mV compared to 200 mV for the MPSA56_D26Z at the specified test conditions (10 mA base current, 100 mA collector current). This 50 mV difference is within normal manufacturing tolerances for this device class and does not affect substitution validity for standard switching and amplification applications.

Q: Are there packaging differences between these parts?

A: Both devices use the TO-92-3 (TO-226AA) through-hole package with formed leads. The primary difference is the supplier packaging format: the MPSA56_D26Z is supplied in standard packaging, while the MPSA56-AP is supplied in Cut Tape (CT) format. This affects handling and assembly processes but not electrical or mechanical compatibility.

Q: What compliance certifications apply to these parts?

A: Both the MPSA56_D26Z and MPSA56-AP are REACH Unaffected and classified under ECCN EAR99. The MPSA56-AP carries RoHS3 compliance certification. Both devices have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life under standard storage conditions.

Q: Why are both parts classified as obsolete?

A: Obsolescence status indicates that these devices are no longer in active production by their respective manufacturers. Identifying substitute parts ensures continued availability for maintenance, repair, and legacy system support. The electrical specifications remain valid for their intended applications.

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