TIP2955-S Equivalent & Substitute Parts Reference

Part Overview

TIP2955-S is a bipolar junction transistor (BJT), PNP type, designed for power switching applications. It supports a maximum collector current of 15 A and withstands up to 60 V collector-emitter voltage. The device is housed in a SOT-93 (TO-218-3) package for through hole mounting. TIP2955-S is classified as "Obsolete," making it necessary to identify and qualify suitable equivalent or substitute models for ongoing design maintenance, production, or repair. Finding a compatible replacement requires matching critical electrical and mechanical parameters.

Key Parameters

Parameter	Main Part (TIP2955-S)
Transistor Type	PNP
Current - Collector (Ic) (Max)	15 A
Voltage - Collector Emitter Breakdown (Max)	60 V
Vce Saturation (Max) @ Ib, Ic	3V @ 3.3A, 10A
Current - Collector Cutoff (Max)	700µA
DC Current Gain (hFE) (Min) @ Ic, Vce	20 @ 4A, 4V
Power - Max	3.5 W
Operating Temperature	-65°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-218-3
RoHS Status	ROHS3 Compliant
ECCN	EAR99
HTSUS	8541.29.0095

Substitute Part Grouping Explanation

Substitute parts are identified strictly by matching essential electrical parameters: transistor type (PNP), collector current (Ic), collector-emitter breakdown voltage (Vce), collector cutoff current, DC current gain (hFE), maximum saturation voltage (Vce), and operating temperature range. Mechanical fit is matched by mounting type and package/case style. RoHS and ECCN compliance are included to ensure regulatory compatibility.

Parameter Comparison

Parameter	TIP2955-S (Bourns Inc.)	TIP2955G (onsemi)
Transistor Type	PNP	PNP
Current - Collector (Ic) (Max)	15 A	15 A
Voltage - Collector Emitter Breakdown (Max)	60 V	60 V
Vce Saturation (Max) @ Ib, Ic	3V @ 3.3A, 10A	3V @ 3.3A, 10A
Current - Collector Cutoff (Max)	700µA	700µA
DC Current Gain (hFE) (Min) @ Ic, Vce	20 @ 4A, 4V	20 @ 4A, 4V
Power - Max	3.5 W	90 W
Operating Temperature	-65°C ~ 150°C (TJ)	-65°C ~ 150°C (TJ)
Mounting Type	Through Hole	Through Hole
Package / Case	TO-218-3	TO-247-3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
ECCN	EAR99	EAR99
HTSUS	8541.29.0095	8541.29.0095

Engineering Selection Recommendations

TIP2955-S is obsolete. Substitute models, such as TIP2955G from onsemi, are active and maintain RoHS3 compliance, ECCN EAR99 classification, and identical electrical ratings. Both main and substitute models feature through hole mounting and meet regulatory requirements. Packaging differs between TO-218-3 and TO-247-3; mechanical compatibility must be verified per application constraints provided.

Frequently Asked Questions (FAQ)

Q1: What criteria determine a valid substitution for TIP2955-S in the Transistors, Bipolar (BJT) category?
A1: Substitution is determined by matching transistor type, collector current rating, maximum collector-emitter voltage, DC current gain, saturation voltage, and mounting type.

Q2: Is the package difference between TO-218-3 (SOT-93) and TO-247-3 significant for board design?
A2: Package differences may impact mechanical fit and thermal considerations. Only the supplied package data is used for compatibility review.

Q3: Are substitute parts like TIP2955G compliant with RoHS and regulatory classifications?
A3: Both main and substitute parts are listed as ROHS3 Compliant and fall under ECCN EAR99 and HTSUS 8541.29.0095.

Q4: Is there any difference in electrical performance between TIP2955-S and TIP2955G based on provided parameters?
A4: Substitutes match all key electrical parameters required for substitution. Power rating differs, but substitute parts meet or exceed the main part's maximums.

Q5: What product status should be considered when selecting a substitute?
A5: TIP2955-S is obsolete. Substitutes, such as TIP2955G, are listed as active and available in inventory.

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