TIP141G Equivalent & Substitute Parts

Part Overview

The TIP141G is an NPN Darlington bipolar junction transistor manufactured by onsemi, housed in a TO-247-3 through-hole package. This device is rated for 80 V collector-emitter breakdown voltage and 10 A maximum collector current, with a maximum power dissipation of 125 W. The TIP141G is classified as obsolete, making identification of suitable substitute components necessary for ongoing design support and procurement continuity. Substitute parts must maintain electrical and mechanical compatibility while meeting current availability and compliance requirements.

Substiute Parts

TIP141G

onsemiIn Stock: 2473TIP141G Datasheet

Current PartRFQ

TIP142G

onsemiIn Stock: 1029TIP142G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TIP141G is determined by the following critical parameters:

• Transistor Type: NPN - Darlington configuration must be maintained
• Current Rating: Maximum collector current must equal or exceed 10 A
• Voltage Rating: Collector-emitter breakdown voltage must equal or exceed 80 V
• Saturation Characteristics: Vce saturation at specified bias conditions must be compatible
• Power Dissipation: Maximum power rating must equal or exceed 125 W
• Package: TO-247-3 through-hole package required for mechanical and thermal compatibility
• DC Current Gain: Minimum hFE of 1000 @ 5 A, 4 V must be maintained
• Temperature Range: Operating temperature range of −65°C to 150°C (TJ) must be supported
• Compliance: RoHS3 compliance required

The TIP142G qualifies as a direct substitute based on these parameters. It maintains all critical electrical specifications while offering an increased voltage rating of 100 V, providing additional design margin. The TIP142G is in active product status, ensuring continued availability and supply chain support.

Parameter Comparison

Engineering Selection Recommendations

The TIP142G is the qualified substitute for the TIP141G based on the following criteria:

Electrical Compatibility: The TIP142G maintains identical collector current (10 A), saturation voltage characteristics (3 V @ 40 mA, 10 A), collector cutoff current (2 mA), and DC current gain (1000 @ 5 A, 4 V). The increased voltage rating of 100 V compared to the TIP141G's 80 V provides additional design margin without compromising any other electrical parameter.

Mechanical and Thermal Compatibility: Both devices use the TO-247-3 through-hole package, ensuring identical mounting, thermal interface, and board layout compatibility.

Compliance and Availability: The TIP142G is ROHS3 compliant and REACH unaffected, matching the TIP141G's compliance status. The TIP142G holds active product status with current inventory availability, whereas the TIP141G is obsolete. This transition ensures long-term supply chain continuity and support.

Thermal Performance: Both devices support the same operating temperature range (−65°C to 150°C TJ) and maximum power dissipation (125 W), ensuring equivalent thermal performance in applications.

Frequently Asked Questions (FAQ)

Q: Can the TIP142G be used as a direct replacement for the TIP141G in existing designs?

A: Yes. The TIP142G is a direct substitute. It maintains all critical electrical parameters including collector current (10 A), saturation voltage (3 V @ 40 mA, 10 A), DC current gain (1000 @ 5 A, 4 V), power dissipation (125 W), and operating temperature range (−65°C to 150°C). The increased voltage rating (100 V vs. 80 V) provides additional design margin. The identical TO-247-3 package ensures mechanical and thermal compatibility without board redesign.

Q: What is the primary difference between the TIP141G and TIP142G?

A: The primary difference is the collector-emitter breakdown voltage rating. The TIP142G is rated for 100 V compared to the TIP141G's 80 V. All other electrical specifications, including current, power, gain, and saturation characteristics, are identical. The TIP142G also holds active product status, whereas the TIP141G is obsolete.

Q: Are there any package or pinout differences between these devices?

A: No. Both the TIP141G and TIP142G use the TO-247-3 through-hole package with identical pinout and mechanical dimensions. No board layout modifications are required for substitution.

Q: Does the TIP142G meet the same compliance requirements as the TIP141G?

A: Yes. The TIP142G is ROHS3 compliant and REACH unaffected, matching the TIP141G's compliance status. Both devices carry the same ECCN (EAR99) and HTSUS (8541.29.0095) classifications.

Q: Why should I use the TIP142G instead of the TIP141G?

A: The TIP141G is classified as obsolete, which creates supply chain risk and limits long-term availability. The TIP142G is in active product status with current inventory support. Substituting the TIP142G ensures design continuity, maintains compliance, and provides the same electrical performance with improved voltage margin.

Q: Are there any thermal or power dissipation differences?

A: No. Both devices are rated for 125 W maximum power dissipation and support the same operating temperature range (−65°C to 150°C TJ). Thermal performance and heat management requirements are equivalent.