TIP110 Equivalent & Substitute Parts

Part Overview

The TIP110 is a Bipolar (BJT) Transistor NPN - Darlington configuration rated for 60 V collector-emitter breakdown voltage and 2 A maximum collector current in a Through Hole TO-220 package. This device is classified as Obsolete by the original manufacturer STMicroelectronics. Due to its obsolete status, equivalent substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term component availability for production and repair applications.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN - Darlington	—
Current - Collector (Ic) (Max)	2	A
Voltage - Collector Emitter Breakdown (Max)	60	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
Package / Case	TO-220-3	—
Mounting Type	Through Hole	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the TIP110 is determined by strict equivalence across the following electrical and mechanical parameters:

Transistor Configuration: NPN - Darlington topology
Maximum Collector Current: 2 A
Maximum Collector-Emitter Breakdown Voltage: 60 V
Saturation Voltage: 2.5 V @ 8 mA base current, 2 A collector current
DC Current Gain (hFE): Minimum 1000 @ 1 A collector current, 4 V collector-emitter voltage
Maximum Power Dissipation: 2 W
Package Configuration: TO-220-3 Through Hole
Regulatory Compliance: ROHS3 Compliant, REACH Unaffected

All substitute parts listed maintain identical electrical specifications and mechanical compatibility with the original TIP110 device. Substitutes are selected from manufacturers with active product status to ensure ongoing availability and supply chain reliability.

Parameter Comparison

Parameter	TIP110 (STMicroelectronics)	TIP110G (onsemi)	TIP110TU (onsemi)
Manufacturer	STMicroelectronics	onsemi	onsemi
Product Status	Obsolete	Active	Obsolete
Transistor Type	NPN - Darlington	NPN - Darlington	NPN - Darlington
Current - Collector (Ic) (Max)	2 A	2 A	2 A
Voltage - Collector Emitter Breakdown (Max)	60 V	60 V	60 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
Power - Max	2 W	2 W	2 W
Package / Case	TO-220-3	TO-220-3	TO-220-3
Mounting Type	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

TIP110G (onsemi) is the primary substitute for the obsolete STMicroelectronics TIP110. This part carries Active product status from onsemi, ensuring continued manufacturing and supply chain availability. The TIP110G maintains full electrical and mechanical equivalence to the original TIP110 and is ROHS3 Compliant with REACH Unaffected certification. The extended operating temperature range of -65°C to 150°C provides broader thermal operating capability compared to the original specification.

TIP110TU (onsemi) is an alternative substitute that provides identical electrical specifications and TO-220-3 package compatibility. However, this part is classified as Obsolete by onsemi. While currently in stock, the TIP110TU does not offer the long-term supply assurance of the Active TIP110G variant.

For new designs and production applications requiring long-term component availability, TIP110G is the recommended selection. For legacy system repairs where existing inventory of TIP110TU is available, this part remains electrically and mechanically compatible.

Frequently Asked Questions (FAQ)

Q: Can TIP110G be used as a direct replacement for TIP110?

A: Yes. The TIP110G from onsemi is a direct electrical and mechanical equivalent to the STMicroelectronics TIP110. All critical parameters including collector current rating (2 A), breakdown voltage (60 V), saturation voltage (2.5 V @ 8 mA, 2 A), DC current gain (1000 @ 1 A, 4 V), and power dissipation (2 W) are identical. The TO-220-3 package pinout and Through Hole mounting are unchanged.

Q: Why is the original TIP110 marked as Obsolete?

A: The TIP110 from STMicroelectronics has reached end-of-life status. Substitute parts from active manufacturers such as onsemi TIP110G ensure continued availability for applications requiring this NPN Darlington transistor specification.

Q: What is the difference between TIP110G and TIP110TU?

A: Both parts are electrically identical with matching electrical specifications. The primary difference is product status: TIP110G is Active (onsemi), while TIP110TU is Obsolete (onsemi). For applications requiring long-term supply continuity, TIP110G is the preferred selection.

Q: Are there any thermal operating range differences between substitutes?

A: The TIP110G specifies an operating temperature range of -65°C to 150°C, while the original TIP110 and TIP110TU specify a maximum junction temperature of 150°C. The TIP110G provides extended low-temperature capability. Both are suitable for standard industrial and consumer applications operating within 0°C to 70°C ambient conditions.

Q: Is the TO-220-3 package pinout identical across all three parts?

A: Yes. All three parts (TIP110, TIP110G, and TIP110TU) use the TO-220-3 Through Hole package with identical pinout configuration. No circuit board modifications are required for substitution.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. The TIP110, TIP110G, and TIP110TU are all ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

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