SMCJ24AHM6G Equivalent & Substitute Parts

Part Overview

The SMCJ24AHM6G is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the DO-214AB (SMC) package. This component provides transient overvoltage protection with a 24V reverse standoff voltage and 38.9V maximum clamping voltage at peak pulse current. The part is classified as discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for ongoing design support and production requirements.

Substiute Parts

SMCJ24AHM6G

Taiwan Semiconductor CorporationIn Stock: 833SMCJ24AHM6G Datasheet

Current PartRFQ

SMCJ24AH

Taiwan Semiconductor CorporationIn Stock: 1157SMCJ24AH Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMCJ24AHM6G is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 24V
• Voltage - Breakdown (Min): 26.7V
• Voltage - Clamping (Max) @ Ipp: 38.9V
• Current - Peak Pulse (10/1000µs): 40A
• Power - Peak Pulse: 1500W

Mechanical & Environmental Equivalence Criteria:

• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C to 150°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The SMCJ24AH meets all specified electrical and mechanical parameters and is therefore a direct substitute for the SMCJ24AHM6G. Both components belong to the SMCJ series and share identical performance characteristics within the defined operating envelope.

Parameter Comparison

Engineering Selection Recommendations

The SMCJ24AH is a direct functional equivalent to the SMCJ24AHM6G and is suitable for substitution in all applications where the original part was specified. Both components are manufactured by Taiwan Semiconductor Corporation and carry identical electrical performance ratings, thermal operating range, and automotive-grade qualification (AEC-Q101).

The primary distinction between the two parts is product status: the SMCJ24AHM6G is discontinued at DiGi Electronics, while the SMCJ24AH maintains active product status with confirmed inventory availability (1117 pcs in stock). The SMCJ24AH is packaged in Tape & Reel (TR) format, which is standard for high-volume production environments.

Both parts satisfy ROHS3 compliance requirements and carry MSL 1 (Unlimited) moisture sensitivity classification, indicating no special handling or storage constraints. The identical DO-214AB (SMC) surface mount package ensures direct PCB footprint compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the SMCJ24AH be used as a direct replacement for the SMCJ24AHM6G in existing designs?

A: Yes. The SMCJ24AH is electrically and mechanically equivalent to the SMCJ24AHM6G across all specified parameters, including voltage ratings, current handling, temperature range, package type, and automotive qualification. No design modifications are required.

Q: What is the difference between the SMCJ24AHM6G and SMCJ24AH part numbers?

A: Both parts are from the SMCJ series with identical electrical specifications. The primary difference is product status: SMCJ24AHM6G is discontinued, while SMCJ24AH is active. The SMCJ24AH is supplied in Tape & Reel packaging, which is standard for production quantities.

Q: Are there any thermal or environmental limitations when substituting the SMCJ24AH?

A: No. Both parts operate across the identical temperature range of -55°C to 150°C (TJ) and carry the same automotive-grade classification with AEC-Q101 qualification. Environmental performance is equivalent.

Q: Does the packaging format (Tape & Reel) affect compatibility?

A: No. Tape & Reel packaging is a supply format for automated assembly processes and does not affect electrical performance or PCB compatibility. The DO-214AB (SMC) package footprint remains identical.

Q: Are both parts RoHS compliant?

A: Yes. Both the SMCJ24AHM6G and SMCJ24AH are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity classification, requiring no special handling or storage procedures.

Q: What is the peak pulse current rating for both parts?

A: Both parts are rated for 40A peak pulse current (10/1000µs) with a maximum clamping voltage of 38.9V at peak pulse current and 1500W peak pulse power dissipation.