MPSA42,116 Equivalent & Substitute Parts Reference

Part Overview

MPSA42,116 is a Through Hole NPN Bipolar Junction Transistor from NXP USA Inc., categorized under Transistors, Bipolar (BJT). It offers a collector-emitter breakdown voltage of 300 V, a maximum collector current of 100 mA, and features a TO-92-3 package. The component is currently listed as obsolete, necessitating identification of alternative models for ongoing designs or maintenance. Substitute selection is governed by equivalence in electrical ratings, mechanical package, and regulatory compliance.

Key Parameters

Parameter	MPSA42,116
Transistor Type	NPN
Voltage - Collector Emitter Breakdown (Max)	300 V
Current - Collector (Ic) (Max)	100 mA
Vce Saturation (Max) @ Ib, Ic	500mV @ 2mA, 20mA
Current - Collector Cutoff (Max)	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	40 @ 30mA, 10V
Power - Max	500 mW
Frequency - Transition	50MHz
Operating Temperature	150°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-226-3, TO-92-3 (TO-226AA) Formed Leads
Supplier Device Package	TO-92-3
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts for MPSA42,116 are selected strictly based on key electrical and mechanical parameters:

Transistor Type
Maximum Collector-Emitter Breakdown Voltage
Maximum Collector Current
Vce Saturation
Collector Cutoff Current (ICBO)
Minimum DC Current Gain (hFE)
Maximum Power Dissipation
Transition Frequency
Operating Temperature
Mounting Type
Package / Case
Supplier Device Package
Regulatory Compliance Status (RoHS, REACH)

Each substitute part listed shares these qualifying parameters within the specified tolerances and identical package form.

Parameter Comparison

Parameter	MPSA42,116 NXP USA Inc.	2N6517TA onsemi	KSP42TA onsemi
Transistor Type	NPN	NPN	NPN
Voltage - Collector Emitter Breakdown (Max)	300 V	350 V	300 V
Current - Collector (Ic) (Max)	100 mA	500 mA	500 mA
Vce Saturation (Max) @ Ib, Ic	500mV @ 2mA, 20mA	1V @ 5mA, 50mA	500mV @ 2mA, 20mA
Current - Collector Cutoff (Max)	100nA (ICBO)	50nA (ICBO)	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	40 @ 30mA, 10V	20 @ 50mA, 10V	40 @ 30mA, 10V
Power - Max	500 mW	625 mW	625 mW
Frequency - Transition	50MHz	200MHz	50MHz
Operating Temperature	150°C (TJ)	150°C (TJ)	150°C (TJ)
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	TO-226-3, TO-92-3 (TO-226AA) Formed Leads
Supplier Device Package	TO-92-3	TO-92-3	TO-92-3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

MPSA42,116 is obsolete. Substitute parts 2N6517TA and KSP42TA are active and meet the required regulatory standards, including RoHS3 compliance and REACH unaffected status. All listed parts utilize the same TO-92-3 package and mounting type for mechanical compatibility. As per inventory information, substitutes are currently available in new original stock suitable for continued manufacturing and service use.

Frequently Asked Questions (FAQ)

Q: What are the critical substitution criteria for replacing MPSA42,116?
A: Substitutes for MPSA42,116 are determined by matching transistor type, collector-emitter breakdown voltage, collector current rating, transition frequency, power dissipation, package/case, mounting type, and compliance certifications.

Q: Are the package and mounting types the same across all listed substitutes?
A: Yes, all listed substitutes utilize the TO-226-3, TO-92-3 (TO-226AA) Formed Leads package and support Through Hole mounting.

Q: Are the substitute parts RoHS and REACH compliant?
A: All substitute parts listed are ROHS3 Compliant and REACH Unaffected, adhering to regulatory standards.

Q: Does collector current or transition frequency impact substitute compatibility?
A: Collector current and transition frequency are matched or higher in listed substitutes, as per provided parameters, ensuring electrical compatibility.

Q: How should DC current gain differences be considered?
A: DC current gain (hFE) is matched for KSP42TA and lower for 2N6517TA; selection depends strictly on the values provided in the comparison table.

Q: Will using substitutes maintain the same mechanical fit in designs using MPSA42,116?
A: Yes, mechanical dimensions and mounting type are identical across all listed substitutes, facilitating direct replacement.

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