SMF12A-T13 Equivalent & Substitute Parts

Part Overview

The SMF12A-T13 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component operates with a 12V reverse standoff voltage and provides peak pulse current handling of 10.1A with a maximum clamping voltage of 19.9V. The part is currently in active production status with 9947 units available in inventory. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

SMF12A-T13

Littelfuse Inc.In Stock: 9974SMF12A-T13 Datasheet

Current PartRFQ

SMF12A_R1_00001

Panjit International Inc.In Stock: 6199SMF12A_R1_00001 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMF12A-T13 is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 12V
• Voltage - Breakdown (Min): 13.3V
• Voltage - Clamping (Max) @ Ipp: 19.9V
• Current - Peak Pulse (10/1000µs): 10.1A
• Power - Peak Pulse: 200W
• Package / Case: SOD-123F
• Mounting Type: Surface Mount
• Type: Zener
• Unidirectional Channels: 1
• Operating Temperature Range: -55°C to 150°C (TJ)

The SMF12A_R1_00001 manufactured by Panjit International Inc. meets all substitution criteria with identical electrical specifications and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the SMF12A-T13 and SMF12A_R1_00001 are active production components with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability, lead time, or supply chain requirements. The SMF12A-T13 has 9947 units in stock, while the SMF12A_R1_00001 has 6172 units available. Both components maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and use.

Frequently Asked Questions (FAQ)

Q: Can SMF12A_R1_00001 be used as a direct replacement for SMF12A-T13?

A: Yes. Both components share identical electrical parameters including reverse standoff voltage (12V), breakdown voltage (13.3V minimum), clamping voltage (19.9V maximum), and peak pulse current (10.1A). Both use the SOD-123F package for surface-mount applications.

Q: Are there any differences in operating temperature range between these parts?

A: No. Both components operate across the same temperature range of -55°C to 150°C (TJ).

Q: Do both parts meet the same compliance standards?

A: Yes. Both SMF12A-T13 and SMF12A_R1_00001 are ROHS3 compliant and REACH unaffected, with identical moisture sensitivity levels (MSL 1 - Unlimited).

Q: What is the significance of the SOD-123F package for substitution?

A: The SOD-123F package is a surface-mount form factor that determines PCB footprint and assembly compatibility. Both parts use this identical package, ensuring mechanical and electrical compatibility in the same circuit board layout.

Q: Are there any performance differences in peak pulse power handling?

A: No. Both components are rated for 200W peak pulse power with identical current handling of 10.1A at the 10/1000µs pulse profile.