TIP112TU Equivalent & Substitute Parts

Part Overview

The TIP112TU is an NPN Darlington bipolar junction transistor manufactured by onsemi, rated for 100 V collector-emitter breakdown voltage and 2 A maximum collector current in a TO-220-3 through-hole package. This device is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design support and procurement continuity. Substitute parts must maintain electrical and mechanical compatibility while meeting current availability and compliance requirements.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN - Darlington	—
Current - Collector (Ic) (Max)	2	A
Voltage - Collector Emitter Breakdown (Max)	100	V
Vce Saturation (Max) @ Ib, Ic	2.5V @ 8mA, 2A	—
Current - Collector Cutoff (Max)	2	mA
DC Current Gain (hFE) (Min) @ Ic, Vce	1000 @ 1A, 4V	—
Power - Max	2	W
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—
Operating Temperature (TJ)	150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the TIP112TU is determined by strict equivalence across the following electrical and mechanical parameters:

Transistor Type: NPN - Darlington configuration
Current Rating: 2 A maximum collector current
Voltage Rating: 100 V collector-emitter breakdown voltage
Saturation Characteristics: 2.5 V @ 8 mA, 2 A
Current Gain: 1000 minimum @ 1 A, 4 V
Package: TO-220-3 through-hole mounting
Compliance: ROHS3 compliance required

Substitute parts must satisfy all electrical parameters within the specified tolerances and maintain TO-220-3 package compatibility. Variations in power dissipation rating, operating temperature range, and product status are noted but do not preclude substitution when electrical specifications align.

Parameter Comparison

Parameter	TIP112TU (onsemi)	TIP112G (onsemi)	TIP112 (Solid State Inc.)
Transistor Type	NPN - Darlington	NPN - Darlington	NPN - Darlington
Current - Collector (Ic) (Max)	2 A	2 A	2 A
Voltage - Collector Emitter Breakdown (Max)	100 V	100 V	100 V
Vce Saturation (Max) @ Ib, Ic	2.5V @ 8mA, 2A	2.5V @ 8mA, 2A	2.5V @ 8mA, 2A
Current - Collector Cutoff (Max)	2 mA	2 mA	2 mA
DC Current Gain (hFE) (Min) @ Ic, Vce	1000 @ 1A, 4V	1000 @ 1A, 4V	1000 @ 1A, 4V
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3	TO-220-3	TO-220-3
Operating Temperature (TJ)	150°C	-65°C ~ 150°C	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

TIP112G (onsemi) is the primary substitute for TIP112TU. Both devices are manufactured by onsemi and share identical electrical specifications across all critical parameters. TIP112G maintains active product status, ensuring continued availability and supply chain reliability. The extended operating temperature range (-65°C to 150°C) of TIP112G provides broader thermal operating margins compared to the TIP112TU specification. Both devices are ROHS3 compliant and carry equivalent regulatory status.

TIP112 (Solid State Inc.) is a secondary substitute option. This device meets all electrical parameter requirements and maintains TO-220-3 package compatibility. The TIP112 from Solid State Inc. offers higher power dissipation capability (50 W versus 2 W), which provides additional thermal headroom in applications. Product status is active with established supply availability. ROHS3 compliance is confirmed; however, REACH status is listed as vendor undefined, requiring verification for applications with strict regulatory requirements.

Selection between TIP112G and TIP112 (Solid State Inc.) depends on supply chain preferences, manufacturer qualification requirements, and regulatory documentation needs. Both satisfy the electrical and mechanical substitution criteria for the obsolete TIP112TU.

Frequently Asked Questions (FAQ)

Q: Can TIP112G directly replace TIP112TU in existing designs?

A: Yes. TIP112G and TIP112TU share identical electrical specifications for collector current, breakdown voltage, saturation characteristics, and current gain. Both use TO-220-3 through-hole packaging. Pin configuration and functional behavior are equivalent.

Q: What is the difference between TIP112TU and TIP112G?

A: The primary differences are product status and operating temperature range. TIP112TU is obsolete; TIP112G is active. TIP112G specifies an operating temperature range of -65°C to 150°C, while TIP112TU specifies 150°C maximum. Electrical performance is identical.

Q: Is the TIP112 from Solid State Inc. compatible with TIP112TU?

A: Yes, for electrical substitution. The TIP112 from Solid State Inc. meets all electrical parameter requirements and uses the same TO-220-3 package. The higher power rating (50 W) does not affect compatibility. Verify REACH compliance documentation if required for your application.

Q: Does higher power rating affect substitution suitability?

A: No. Higher power dissipation capability (50 W in the Solid State Inc. TIP112 versus 2 W in TIP112TU) does not compromise substitution. The device remains electrically equivalent and physically compatible. Higher power rating provides additional thermal margin.

Q: Are there packaging differences between these parts?

A: All three parts use TO-220-3 through-hole packaging. Packaging designation variations (Tube for TIP112G, unspecified for TIP112TU and TIP112) refer to supply format only and do not affect electrical or mechanical compatibility.

Q: What compliance certifications apply to these substitutes?

A: TIP112G and TIP112TU are both ROHS3 compliant. TIP112 (Solid State Inc.) is ROHS3 compliant with vendor-undefined REACH status. Verify REACH compliance documentation with the supplier if required for your regulatory framework.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message