SMLJ13CA-TP Equivalent & Substitute Parts

Part Overview

The SMLJ13CA-TP is a bidirectional transient voltage suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose interface protection applications. This surface-mount component operates across a wide temperature range (-55°C to 175°C) and provides 3000W peak pulse power dissipation with a 21.5V maximum clamping voltage. The part is currently in active production status with 731 pieces available in bulk packaging. Substitute parts are identified to address packaging format requirements, inventory availability, or specific application constraints while maintaining electrical equivalence.

Substiute Parts

SMLJ13CA-TP

Micro Commercial CoIn Stock: 813SMLJ13CA-TP Datasheet

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SMDJ13CA

Alpha & Omega Semiconductor Inc.In Stock: 10303SMDJ13CA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMLJ13CA-TP is determined by strict equivalence across the following critical electrical parameters:

• Voltage - Reverse Standoff (Typ): 13V
• Voltage - Breakdown (Min): 14.4V
• Voltage - Clamping (Max) @ Ipp: 21.5V
• Current - Peak Pulse (10/1000µs): 139.4A ± tolerance
• Power - Peak Pulse: 3000W
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Bidirectional Channels: 1

The SMDJ13CA manufactured by Alpha & Omega Semiconductor Inc. meets all electrical equivalence criteria. This substitute differs in packaging format (Tape & Reel versus Bulk) and maximum operating temperature (150°C versus 175°C). The substitute is suitable for applications where the lower temperature ceiling does not conflict with system requirements and where tape-and-reel packaging is acceptable or preferred.

Parameter Comparison

Engineering Selection Recommendations

Both the SMLJ13CA-TP and SMDJ13CA are active production components with equivalent electrical performance for transient voltage suppression in general-purpose interface applications. Selection between these parts should be based on the following criteria:

SMLJ13CA-TP is the primary choice when:

• System operating temperature may reach or exceed 150°C
• Bulk packaging format aligns with procurement and assembly workflows
• Micro Commercial Co supply chain is established

SMDJ13CA is suitable when:

• Maximum operating temperature requirement does not exceed 150°C
• Tape & Reel packaging is compatible with automated assembly processes
• Alpha & Omega Semiconductor Inc. supply chain is preferred or established
• Higher inventory availability (10,200 pieces) supports project timelines

Both parts carry REACH Unaffected status and EAR99 ECCN classification. The SMDJ13CA additionally carries RoHS3 compliance certification. Electrical performance is functionally identical across all critical transient suppression parameters.

Frequently Asked Questions (FAQ)

Q: Can SMDJ13CA replace SMLJ13CA-TP in all applications?

A: SMDJ13CA is electrically equivalent for transient voltage suppression performance. However, the maximum operating temperature differs: SMDJ13CA is rated to 150°C versus SMLJ13CA-TP at 175°C. Substitution is valid only when the application's maximum junction temperature does not exceed 150°C.

Q: What is the difference between Bulk and Tape & Reel packaging?

A: Bulk packaging contains loose components suitable for manual assembly or small-volume applications. Tape & Reel packaging presents components on continuous tape for automated pick-and-place assembly equipment. Both formats contain identical components; packaging format selection depends on assembly process requirements.

Q: Are the peak pulse current specifications identical?

A: The specifications are functionally equivalent. SMLJ13CA-TP is rated at 139.4A and SMDJ13CA at 139.6A for the 10/1000µs pulse waveform. This 0.2A difference is within normal manufacturing tolerance and does not affect substitution eligibility.

Q: Does RoHS3 compliance on SMDJ13CA affect compatibility?

A: RoHS3 compliance indicates the SMDJ13CA meets additional environmental restrictions on hazardous substances. This is a superset of requirements and does not create incompatibility. Both parts are REACH Unaffected.

Q: What clamping voltage should I expect in operation?

A: Both parts clamp at a maximum of 21.5V at peak pulse current (Ipp). The reverse standoff voltage is 13V, and breakdown occurs at a minimum of 14.4V. These parameters define the protection window for interface circuits.

Q: Can I mix SMLJ13CA-TP and SMDJ13CA in the same production run?

A: Yes, provided the application's maximum operating temperature does not exceed 150°C. Both parts are functionally equivalent for transient suppression. Mixing packaging formats (Bulk and Tape & Reel) requires coordination with assembly processes but does not affect electrical performance.