TIP115TU Equivalent & Substitute Parts

Part Overview

The TIP115TU is a PNP Darlington bipolar junction transistor manufactured by onsemi, rated for 60 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 manufacturing and compliance standards.

Substiute Parts

TIP115TU

onsemiIn Stock: 1623TIP115TU Datasheet

Current PartRFQ

TIP115G

onsemiIn Stock: 1876TIP115G Datasheet

DirectRFQ

TIP115

Solid State Inc.In Stock: 4603TIP115 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TIP115TU are selected based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Electrical Parameters (Must Match):

• Transistor Type: PNP - Darlington
• Current - Collector (Ic) (Max): 2 A
• Voltage - Collector Emitter Breakdown (Max): 60 V
• Vce Saturation (Max) @ Ib, Ic: 2.5 V @ 8 mA, 2 A
• Current - Collector Cutoff (Max): 2 mA
• DC Current Gain (hFE) (Min) @ Ic, Vce: 1000 @ 1 A, 4 V

Mechanical Parameters (Must Match):

• Mounting Type: Through Hole
• Package / Case: TO-220-3

Acceptable Variations:

• Power dissipation rating may exceed the original specification
• Operating temperature range may be extended
• Product status may transition from obsolete to active
• Compliance certifications may be enhanced (RoHS3, REACH)

Parameter Comparison

Engineering Selection Recommendations

TIP115G (onsemi) is the primary substitute for the TIP115TU. This part maintains identical electrical specifications and TO-220-3 package configuration while offering active product status and ROHS3 compliance. The extended operating temperature range (-65°C to 150°C) provides enhanced thermal performance margin compared to the original specification. Packaging is supplied in tube format.

TIP115 (Solid State Inc.) is an alternative substitute that meets all core electrical and mechanical requirements. This variant offers significantly higher power dissipation capability (50 W versus 2 W), providing additional thermal headroom for applications requiring extended operating margins. Product status is active with ROHS3 compliance. The extended operating temperature range (-65°C to 150°C) matches the TIP115G specification.

Both substitute parts satisfy direct electrical parameter equivalence and mechanical compatibility with the obsolete TIP115TU. Selection between TIP115G and TIP115 depends on thermal design requirements and supplier availability. The TIP115G maintains closer alignment to original power specifications, while the TIP115 provides enhanced thermal performance for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can the TIP115G directly replace the TIP115TU in existing designs?

A: Yes. The TIP115G maintains identical electrical specifications (60 V, 2 A, 2 W, TO-220-3 package) and Darlington configuration. The primary difference is product status transition from obsolete to active and enhanced compliance certifications. No circuit modifications are required.

Q: What is the significance of the extended operating temperature range in substitute parts?

A: The TIP115TU specifies a maximum junction temperature of 150°C. Both substitute parts (TIP115G and TIP115) specify an operating range of -65°C to 150°C, providing defined performance across a wider ambient temperature envelope. This does not alter circuit operation but provides additional design margin for thermal management.

Q: Why does the TIP115 (Solid State Inc.) specify 50 W power dissipation versus 2 W for the original?

A: Power dissipation rating reflects the thermal capability of the specific device variant and package implementation. The 50 W rating for the TIP115 indicates enhanced thermal performance within the same TO-220-3 form factor. This is a beneficial characteristic that does not compromise compatibility; applications designed for 2 W operation remain fully compatible.

Q: Are there packaging differences between TIP115TU and substitute parts?

A: The TIP115TU and TIP115G both use TO-220-3 through-hole packages. The TIP115G is supplied in tube packaging, while the TIP115TU packaging format is not specified. The TIP115 (Solid State Inc.) also uses TO-220-3 through-hole configuration. All three parts are mechanically and electrically compatible in PCB applications.

Q: What compliance certifications apply to substitute parts?

A: The TIP115G carries ROHS3 compliance certification and maintains REACH Unaffected status. The TIP115 (Solid State Inc.) is ROHS3 compliant with vendor-undefined REACH status. Both parts meet current environmental and regulatory standards applicable to electronic components in the EU and North American markets.

Q: Can the TIP115 and TIP115G be used interchangeably?

A: Yes. Both parts meet identical electrical specifications and mechanical requirements. Selection between them depends on supplier availability, packaging format preference (tube for TIP115G), and thermal design requirements. The TIP115 offers higher power dissipation capability if thermal margin is a design consideration.