Equivalent & Substitute Parts for 15C02CH-TL-E

Part Overview

The 15C02CH-TL-E is an NPN bipolar junction transistor manufactured by onsemi, rated for 15 V collector-emitter breakdown voltage and 1 A maximum collector current. This surface mount device operates at a transition frequency of 440 MHz with a maximum power dissipation of 700 mW. The part is classified as obsolete, making identification of equivalent and substitute components necessary for ongoing design support, production continuity, and system maintenance.

Substiute Parts

15C02CH-TL-E

onsemiIn Stock: 429315C02CH-TL-E Datasheet

Current PartRFQ

2SD1048-7-TB-E

onsemiIn Stock: 121732SD1048-7-TB-E Datasheet

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2SD2444KT146R

Rohm SemiconductorIn Stock: 43452SD2444KT146R Datasheet

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FMMT617TA

Diodes IncorporatedIn Stock: 146352FMMT617TA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 15C02CH-TL-E is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Transistor type must be NPN
• Voltage - Collector Emitter Breakdown (Max) must be ≥ 15 V
• Current - Collector (Ic) (Max) must be ≥ 1 A
• Mounting type must be Surface Mount
• Operating temperature range must support 150°C (TJ)

Mechanical Compatibility Criteria:

• Package / Case must be compatible with surface mount assembly
• Moisture Sensitivity Level (MSL) must be ≤ 1 (Unlimited)

Compliance Criteria:

• RoHS3 Compliant status required
• REACH Unaffected status required

The substitute parts identified below satisfy these criteria with varying performance characteristics in frequency response and power dissipation.

Parameter Comparison

Engineering Selection Recommendations

2SD2444KT146R (Rohm Semiconductor)

This part provides the closest electrical match to the 15C02CH-TL-E. It maintains the 1 A maximum collector current and 15 V breakdown voltage specifications. The operating temperature maximum of 150°C matches the original part. Both parts are ROHS3 Compliant and REACH Unaffected. The primary trade-off is reduced transition frequency (200 MHz versus 440 MHz) and lower maximum power dissipation (200 mW versus 700 mW). This substitute is suitable for applications where the original frequency performance is not critical to circuit function.

FMMT617TA (Diodes Incorporated)

This part exceeds the current rating of the original device at 3 A maximum collector current, providing design margin for higher current applications. It maintains 15 V breakdown voltage and 150°C operating temperature. The transition frequency of 120 MHz is significantly lower than the original specification. This substitute is appropriate for applications requiring higher current capacity where frequency performance is not a limiting factor. ROHS3 Compliant and REACH Unaffected status is maintained.

2SD1048-7-TB-E (onsemi)

This part is from the same manufacturer as the original component and maintains active product status. However, it is limited to 700 mA maximum collector current, which is below the 1 A specification of the 15C02CH-TL-E. The maximum operating temperature is 125°C, which is 25°C lower than the original part. This substitute is suitable only for applications with reduced current requirements and lower temperature operating conditions. ROHS3 Compliant and REACH Unaffected status is maintained.

Frequently Asked Questions (FAQ)

Q: Can the 2SD2444KT146R directly replace the 15C02CH-TL-E in all applications?

A: The 2SD2444KT146R is electrically compatible for voltage and current ratings. However, the transition frequency is reduced from 440 MHz to 200 MHz. Applications dependent on high-frequency switching performance may require circuit re-evaluation. Package compatibility must be verified for the specific PCB layout, as the original uses SC-96 packaging while the substitute uses SOT-23-3.

Q: What are the limitations of using FMMT617TA as a substitute?

A: The FMMT617TA operates at 120 MHz transition frequency, significantly lower than the original 440 MHz specification. This part is suitable for low-frequency switching applications. The higher current rating (3 A) provides design margin but does not compensate for reduced frequency performance in high-speed circuits.

Q: Why is the 2SD1048-7-TB-E not recommended as a primary substitute?

A: The 2SD1048-7-TB-E has a maximum collector current of 700 mA, which is below the 1 A requirement of the original part. Additionally, the maximum operating temperature is limited to 125°C compared to 150°C for the 15C02CH-TL-E. This part is suitable only for applications with reduced current and temperature specifications.

Q: Are all substitute parts RoHS3 Compliant?

A: Yes. All identified substitute parts (2SD2444KT146R, FMMT617TA, and 2SD1048-7-TB-E) are ROHS3 Compliant and REACH Unaffected, matching the compliance status of the original 15C02CH-TL-E.

Q: What is the primary difference in package types between the original and substitutes?

A: The original 15C02CH-TL-E uses SC-96 packaging. The substitute parts use SOT-23-3 (TO-236-3, SC-59) packaging. PCB layout modifications may be required to accommodate the different package footprint.

Q: Which substitute part has the closest performance match to the original?

A: The 2SD2444KT146R provides the closest electrical match, maintaining 1 A collector current and 15 V breakdown voltage ratings. The primary performance difference is reduced transition frequency (200 MHz versus 440 MHz).