TIP47-S Equivalent & Substitute Parts Engineering Reference

Part Overview

The TIP47-S from Bourns Inc. is an NPN bipolar junction transistor (BJT) rated for 250 V collector-emitter voltage, 1 A collector current, and 2 W maximum power dissipation, housed in a TO-220-3 through-hole package. The product is currently obsolete. When the specified product is obsolete, locating alternatives or direct substitutes is necessary to ensure ongoing system maintainability, repair, or production continuity.

Key Parameters

Parameter	Value
Transistor Type	NPN
Current - Collector (Ic) (Max)	1 A
Voltage - Collector Emitter Breakdown (Max)	250 V
Vce Saturation (Max) @ Ib, Ic	1V @ 200mA, 1A
Current - Collector Cutoff (Max)	1mA
DC Current Gain (hFE) (Min) @ Ic, Vce	30 @ 300mA, 10V
Power - Max	2 W
Operating Temperature	-65°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-220-3
Supplier Device Package	TO-220
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute and equivalent parts for the TIP47-S are identified based on direct matching of the following parameters:

Transistor type (NPN)
Maximum collector current (1 A)
Maximum collector-emitter voltage (250 V)
Maximum Vce saturation voltage (1V @ 200mA, 1A)
Maximum collector cutoff current (1mA)
Minimum DC current gain (30 @ 300mA, 10V)
Maximum power dissipation (≥2 W)
Operating temperature range (-65°C ~ 150°C)
Mechanical mounting (Through Hole)
Package / case (TO-220-3)
Supplier device package (TO-220) Only substitutes fully matching all explicit electrical and mechanical parameters are considered.

Parameter Comparison

td>NPN

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	Supplier Device Package	RoHS Status	Product Status
TIP47-S	Bourns Inc.	NPN	1 A	250 V	1V @ 200mA, 1A	1mA	30 @ 300mA, 10V	2 W	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3	TO-220	ROHS3 Compliant	Obsolete
TIP47	NTE Electronics, Inc	1 A	250 V	1V @ 200mA, 1A	1mA	30 @ 300mA, 10V	40 W	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3	TO-220	RoHS non-compliant	Active
TIP47G	onsemi	NPN	1 A	250 V	1V @ 200mA, 1A	1mA	30 @ 300mA, 10V	2 W	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3	TO-220	ROHS3 Compliant	Active

Engineering Selection Recommendations

The TIP47G from onsemi is ROHS3 Compliant and active, matching the RoHS compliance of the main part TIP47-S. The NTE Electronics TIP47 provides an active status but does not match the RoHS compliance (RoHS non-compliant). Product status should be considered in applications where continued availability is critical. For projects requiring only RoHS compliant parts, select TIP47G from onsemi.

Frequently Asked Questions (FAQ)

Q1: What determines whether a transistor is a direct substitute for TIP47-S?
A1: Matching electrical parameters (transistor type, collector current, collector-emitter voltage, DC current gain, power dissipation, maximum Vce saturation, collector cutoff current, operating temperature) and mechanical package (TO-220-3, Through Hole) ensures compatibility for substitution.

Q2: Are all TO-220-3 packaged NPN transistors suitable as substitutes?
A2: Only those with electrical parameters equal to or exceeding the TIP47-S ratings as specified above are considered suitable substitutes.

Q3: How does RoHS status affect substitute selection?
A3: Applications requiring compliance with lead-free or RoHS standards must use substitutes, such as TIP47G from onsemi, that are ROHS3 Compliant.

Q4: What considerations are required for mechanical compatibility?
A4: The substitute must have the same mounting type (Through Hole) and package (TO-220-3) to ensure mechanical and thermal compatibility with existing board layouts.

Q5: Why is component status relevant for substitute selection?
A5: Selecting an active and non-obsolete part maximizes long-term availability, reducing the risk of supply chain disruptions.

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