TIP111TU Equivalent & Substitute Parts

Part Overview

The TIP111TU is an NPN Darlington bipolar junction transistor manufactured by onsemi, rated for 80 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 and substitute components for ongoing design requirements and production continuity. Substitute parts must maintain electrical compatibility across critical parameters including voltage rating, current capacity, and DC current gain characteristics.

Substiute Parts

TIP111TU

onsemiIn Stock: 6173TIP111TU Datasheet

Current PartRFQ

TIP111G

onsemiIn Stock: 1028TIP111G Datasheet

DirectRFQ

TIP112

Solid State Inc.In Stock: 21593TIP112 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TIP111TU are classified based on electrical parameter compatibility and product availability status. The substitution logic is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Transistor Type: NPN - Darlington configuration
• Current - Collector (Ic) (Max): 2 A minimum
• Voltage - Collector Emitter Breakdown (Max): 80 V minimum
• DC Current Gain (hFE) (Min) @ Ic, Vce: 1000 @ 1A, 4V minimum
• Vce Saturation (Max) @ Ib, Ic: 2.5V @ 8mA, 2A maximum

Mechanical Compatibility Criteria:

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

Compliance Criteria:

• RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories: Direct Equivalents (identical electrical specifications and active product status) and Similar Substitutes (enhanced electrical specifications with compatible core parameters).

Parameter Comparison

Engineering Selection Recommendations

TIP111G (Direct Equivalent - Preferred)

The TIP111G is the primary substitute for the obsolete TIP111TU. This component is manufactured by onsemi and maintains identical electrical specifications across all critical parameters: 80 V collector-emitter breakdown voltage, 2 A maximum collector current, 2.5 V saturation voltage, and 1000 minimum DC current gain. The TIP111G is classified as an active product with current production status and full ROHS3 compliance. The operating temperature range of -65°C to 150°C provides extended low-temperature capability compared to the TIP111TU specification. Both devices share the TO-220-3 through-hole package and identical mechanical mounting characteristics. This substitution requires no circuit modifications and provides direct functional replacement.

TIP112 (Similar Substitute - Enhanced Capability)

The TIP112 manufactured by Solid State Inc. provides an alternative substitute with enhanced electrical specifications. This device maintains the same collector current (2 A), saturation voltage (2.5 V), and DC current gain (1000) as the TIP111TU, but offers an increased collector-emitter breakdown voltage of 100 V and significantly higher power dissipation capability of 50 W compared to 2 W. The TIP112 is classified as an active product with full ROHS3 compliance and operates across the -65°C to 150°C temperature range. The TO-220-3 package and through-hole mounting are identical to the main part. The TIP112 is suitable for applications requiring higher voltage headroom or increased thermal dissipation capacity while maintaining core Darlington transistor functionality.

Frequently Asked Questions (FAQ)

Q: Can the TIP111G be used as a direct replacement for the TIP111TU without circuit modifications?

A: Yes. The TIP111G maintains identical electrical specifications for all critical parameters including voltage rating, current capacity, saturation voltage, and DC current gain. Both devices use the TO-220-3 through-hole package. No circuit modifications are required for substitution.

Q: What is the primary difference between the TIP111G and TIP112?

A: The TIP111G is a direct electrical equivalent with 80 V breakdown voltage and 2 W power rating. The TIP112 offers enhanced specifications with 100 V breakdown voltage and 50 W power rating. Both maintain identical collector current (2 A), saturation voltage, and DC current gain. The TIP112 is suitable for applications requiring higher voltage margins or increased thermal dissipation.

Q: Are all substitute parts available in the same TO-220-3 package?

A: Yes. The TIP111G and TIP112 are both supplied in TO-220-3 through-hole packages, providing identical mechanical compatibility with the TIP111TU.

Q: What is the significance of the TIP111TU being classified as obsolete?

A: The obsolete classification indicates that the TIP111TU is no longer in active production. The TIP111G and TIP112 are both active products with current manufacturing availability, ensuring long-term supply continuity for new designs and production requirements.

Q: Do the substitute parts meet the same compliance standards as the TIP111TU?

A: Yes. Both the TIP111G and TIP112 are ROHS3 compliant, matching the compliance status of the TIP111TU. Both devices are suitable for applications requiring RoHS compliance.

Q: What is the operating temperature range difference between the TIP111TU and its substitutes?

A: The TIP111TU specifies a maximum operating temperature of 150°C. The TIP111G and TIP112 both specify an operating temperature range of -65°C to 150°C, providing extended low-temperature capability. For applications operating only at or below 150°C, this difference does not affect substitution suitability.