TIP42A-S Equivalent & Substitute Parts Engineering Reference

Part Overview

The TIP42A-S from Bourns Inc. is a PNP bipolar junction transistor (BJT) rated for 60 V collector-emitter breakdown voltage and a maximum collector current of 6 A, housed in a TO-220 through-hole package. The device is now categorized as obsolete, which necessitates the identification of alternative models for ongoing design support, service, and maintenance in existing applications.

Key Parameters

Parameter	Value
Transistor Type	PNP
Current - Collector (Ic) (Max)	6 A
Voltage - Collector Emitter Breakdown (Max)	60 V
Vce Saturation (Max) @ Ib, Ic	1.5V @ 600mA, 6A
Current - Collector Cutoff (Max)	700µA
DC Current Gain (hFE) (Min) @ Ic, Vce	15 @ 3A, 4V
Power - Max	2 W
Operating Temperature	-65°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-220-3
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the Bourns Inc. TIP42A-S PNP BJT transistor is based strictly on electrical and mechanical parameters provided. The parameters governing equivalency include: transistor type (PNP), maximum collector current (6 A), maximum collector-emitter breakdown voltage (60 V), maximum Vce saturation at specified Ib and Ic, collector cutoff current, minimum DC current gain at specified Ic and Vce, maximum power dissipation (2 W), specified operating temperature range, mounting type (Through Hole), and the TO-220-3 package format. RoHS and compliance status are listed for reference.

Parameter Comparison

td>PNP

Manufacturer Part Number	Manufacturer	Transistor Type	Current - Collector (Ic) (Max)	Voltage - Collector Emitter Breakdown (Max)	Vce Saturation (Max) @ Ib, Ic	Current - Collector Cutoff (Max)	DC Current Gain (hFE) (Min) @ Ic, Vce	Power - Max	Operating Temperature	Mounting Type	Package / Case	RoHS Status	Product Status
TIP42A-S	Bourns Inc.	PNP	6 A	60 V	1.5V @ 600mA, 6A	700µA	15 @ 3A, 4V	2 W	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3	ROHS3 Compliant	Obsolete
TIP42A	NTE Electronics, Inc	6 A	60 V	1.5V @ 600mA, 6A	700µA	15 @ 3A, 4V	2 W	150°C (TJ)	Through Hole	TO-220-3	RoHS non-compliant	Active
TIP42AG	onsemi	PNP	6 A	60 V	1.5V @ 600mA, 6A	700µA	15 @ 3A, 4V	2 W	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3	ROHS3 Compliant	Active

Engineering Selection Recommendations

When selecting a TIP42A-S substitute, product status, RoHS compliance, and provided environmental certifications must be considered. Among the listed equivalents, TIP42A by NTE Electronics, Inc is RoHS non-compliant while active, and TIP42AG by onsemi is ROHS3 compliant and active. Both alternatives match all provided key parameters required for substitution.

Frequently Asked Questions (FAQ)

Q: Which key parameters are required for determining a substitute for TIP42A-S?
A: Substitution is strictly based on transistor type (PNP), collector current rating (6 A), collector-emitter breakdown voltage (60 V), Vce saturation at specific values, collector cutoff current, minimum DC current gain, maximum power dissipation, operating temperature, mounting type (Through Hole), and package/case (TO-220-3).

Q: Are the TIP42A and TIP42AG functionally compatible with TIP42A-S?
A: Yes, TIP42A and TIP42AG are functionally compatible with TIP42A-S based on all explicit electrical and mechanical parameters provided.

Q: Does package type affect substitution?
A: All parts listed, including TIP42A-S, TIP42A, and TIP42AG, utilize the TO-220-3 package and support through hole mounting, maintaining mechanical compatibility.

Q: Can RoHS compliance impact selection?
A: RoHS compliance differentiates the substitutes: TIP42AG by onsemi is ROHS3 Compliant, TIP42A by NTE Electronics, Inc is RoHS non-compliant. Compliance should align with application or regulatory requirements.

Q: Are there differences in product status among the parts?
A: TIP42A-S is obsolete. Both substitutes, TIP42A and TIP42AG, have Active product status, ensuring ongoing availability.

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