Equivalent & Substitute Parts Reference for TIP48-S

Part Overview

The TIP48-S is a Bipolar (BJT) NPN transistor manufactured by Bourns Inc., with a voltage rating of 300 V, a collector current of 1 A, and a power dissipation rating of 2 W. It is supplied in a TO-220-3 through-hole package. This product is currently obsolete, making it essential to identify alternative models for ongoing or future designs and maintenance.

Key Parameters

Parameter	Specification
Transistor Type	NPN
Voltage - Collector Emitter Breakdown (Max)	300 V
Current - Collector (Ic) (Max)	1 A
Vce Saturation (Max) @ Ib, Ic	1V @ 200mA, 1A
Current - Collector Cutoff (Max)	1 mA
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

Substitute Part Grouping Explanation

Substitute parts for the TIP48-S are grouped strictly based on identical or closely matching key electrical parameters and mechanical package type. Allowed substitutions must comply with: transistor type (NPN), collector-emitter voltage (minimum 250 V for similar, 300 V for direct), collector current (1 A), Vce saturation, DC current gain (minimum 30), power dissipation (2 W), mounting type (through-hole), and TO-220-3 package. ROHS3 compliance is also maintained.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Transistor Type	Voltage - Collector Emitter Breakdown (Max)	Current - Collector (Ic) (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
TIP48-S	Bourns Inc.	NPN	300 V	1 A	1V @ 200mA, 1A	1 mA	30 @ 300mA, 10V	2 W	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3	TO-220	ROHS3 Compliant
TIP48G	onsemi	NPN	300 V	1 A	1V @ 200mA, 1A	1 mA	30 @ 300mA, 10V	2 W	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3	TO-220	ROHS3 Compliant
TIP47G	onsemi	NPN	250 V	1 A	1V @ 200mA, 1A	1 mA	30 @ 300mA, 10V	2 W	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3	TO-220	ROHS3 Compliant

Engineering Selection Recommendations

TIP48-S is obsolete. TIP48G provides a direct equivalent with matching electrical ratings, mechanical compatibility, and ROHS3 compliance. TIP47G is similar, with a lower breakdown voltage of 250 V but otherwise identical parameters and compliance certifications. Both substitutes are active, ROHS3 compliant, and supplied in TO-220-3 through-hole packages.

Frequently Asked Questions (FAQ)

Q: What are the critical substitution criteria for TIP48-S bipolar transistors?
A: The critical criteria are transistor type (NPN), voltage and current ratings, DC current gain, Vce saturation, power dissipation, mounting type, package, and compliance status.

Q: Can TIP48G and TIP47G be used as form/fit/function replacements for TIP48-S?
A: Yes, both TIP48G and TIP47G match the required mechanical package (TO-220-3, through-hole) and all key electrical parameters except for the breakdown voltage, which is 250 V for TIP47G.

Q: Is ROHS compliance maintained when substituting TIP48-S with TIP48G or TIP47G?
A: ROHS3 compliance is maintained for both TIP48G and TIP47G.

Q: Are there any physical package or mounting differences between TIP48-S, TIP48G, and TIP47G?
A: All utilize the TO-220-3 through-hole package, ensuring consistent physical and mounting compatibility.

Q: When is TIP48G preferred over TIP47G as a substitute?
A: TIP48G is preferred when the full 300 V breakdown rating is required. TIP47G matches on other parameters but has a maximum rating of 250 V.

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