SMLJ6.0A-TP Equivalent & Substitute Parts

Part Overview

The SMLJ6.0A-TP is a unidirectional transient voltage suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose interface protection applications. This surface-mount component operates across a temperature range of -55°C to 175°C and is housed in a DO-214AB (SMC) package. The part is currently in active production status with 1027 units available in bulk packaging.

Identifying equivalent and substitute parts is necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when supply chain optimization is needed while maintaining identical electrical performance and mechanical compatibility.

Substiute Parts

SMLJ6.0A-TP
Micro Commercial CoIn Stock: 1055SMLJ6.0A-TP Datasheet
SMLJ6.0A-TP
Current Part
SMDJ6.0A
Alpha & Omega Semiconductor Inc.In Stock: 2366SMDJ6.0A Datasheet
SMDJ6.0A
Similar

Key Parameters

Parameter Value Unit
Voltage - Reverse Standoff (Typ) 6 V
Voltage - Breakdown (Min) 6.67 V
Voltage - Clamping (Max) @ Ipp 10.3 V
Current - Peak Pulse (10/1000µs) 291.3 A
Power - Peak Pulse 3000 W
Operating Temperature Range -55 to 175 °C
Package / Case DO-214AB, SMC
Mounting Type Surface Mount
Unidirectional Channels 1
Type Zener

Substitute Part Grouping Explanation

Substitution of the SMLJ6.0A-TP is permissible when the replacement part meets all of the following criteria:

Electrical Parameters (Must Match Exactly):

  • Voltage - Reverse Standoff (Typ): 6V
  • Voltage - Breakdown (Min): 6.67V
  • Voltage - Clamping (Max) @ Ipp: 10.3V
  • Current - Peak Pulse (10/1000µs): 291.3A
  • Power - Peak Pulse: 3000W

Mechanical & Packaging Parameters (Must Match):

  • Package / Case: DO-214AB, SMC
  • Mounting Type: Surface Mount
  • Unidirectional Channels: 1
  • Type: Zener

Functional Parameters (Must Match):

  • Applications: General Purpose
  • Power Line Protection: No

The SMDJ6.0A manufactured by Alpha & Omega Semiconductor Inc. satisfies all substitution criteria and is classified as a direct equivalent part.

Parameter Comparison

Parameter SMLJ6.0A-TP (Micro Commercial Co) SMDJ6.0A (Alpha & Omega Semiconductor) Match Status
Voltage - Reverse Standoff (Typ) 6V 6V ✓ Identical
Voltage - Breakdown (Min) 6.67V 6.67V ✓ Identical
Voltage - Clamping (Max) @ Ipp 10.3V 10.3V ✓ Identical
Current - Peak Pulse (10/1000µs) 291.3A 291.3A ✓ Identical
Power - Peak Pulse 3000W 3000W ✓ Identical
Operating Temperature Range -55°C to 175°C -55°C to 150°C ⚠ SMDJ6.0A upper limit 25°C lower
Package / Case DO-214AB, SMC DO-214AB, SMC ✓ Identical
Mounting Type Surface Mount Surface Mount ✓ Identical
Unidirectional Channels 1 1 ✓ Identical
Type Zener Zener ✓ Identical
Packaging Format Bulk Tape & Reel (TR) Different format
Product Status Active Active ✓ Both active

Engineering Selection Recommendations

Primary Selection: SMLJ6.0A-TP

The SMLJ6.0A-TP remains the preferred choice when available. It is manufactured by Micro Commercial Co, carries active product status, and operates across the full temperature range of -55°C to 175°C. The part is supplied in bulk packaging format.

Equivalent Substitute: SMDJ6.0A

The SMDJ6.0A manufactured by Alpha & Omega Semiconductor Inc. is electrically and mechanically equivalent to the SMLJ6.0A-TP. Both parts are REACH Unaffected and classified under ECCN EAR99. The SMDJ6.0A is supplied in Tape & Reel (TR) format, which is suitable for automated assembly processes.

Temperature Consideration:

The SMDJ6.0A operates to a maximum junction temperature of 150°C, compared to 175°C for the SMLJ6.0A-TP. Applications requiring sustained operation above 150°C junction temperature must use the SMLJ6.0A-TP. For applications with maximum junction temperatures at or below 150°C, the SMDJ6.0A is fully qualified as a substitute.

Compliance Status:

Both parts are REACH Unaffected and carry identical HTSUS classification (8541.10.0080). The SMDJ6.0A carries RoHS3 Compliance certification. Selection between these parts may be driven by specific supply chain compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can SMDJ6.0A be used as a direct replacement for SMLJ6.0A-TP in all applications?

A: The SMDJ6.0A is electrically and mechanically equivalent for applications where the maximum junction temperature does not exceed 150°C. The SMLJ6.0A-TP is required for applications requiring operation up to 175°C junction temperature. Both parts are identical in voltage ratings, current handling, power dissipation, and package format.

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

A: Bulk packaging (SMLJ6.0A-TP) is supplied as loose components suitable for manual assembly or small-volume production. Tape & Reel packaging (SMDJ6.0A) is formatted for automated pick-and-place assembly equipment. The electrical and mechanical specifications are identical; packaging format is determined by manufacturing process requirements.

Q: Are there any compliance differences between these parts?

A: Both parts are REACH Unaffected and carry identical ECCN (EAR99) and HTSUS classifications. The SMDJ6.0A carries additional RoHS3 Compliance certification. Applications subject to RoHS3 requirements should specify the SMDJ6.0A.

Q: What parameters must match exactly for substitution?

A: All electrical parameters must match exactly: 6V reverse standoff voltage, 6.67V minimum breakdown voltage, 10.3V maximum clamping voltage, 291.3A peak pulse current, and 3000W peak pulse power. The package format (DO-214AB, SMC), mounting type (surface mount), and channel configuration (1 unidirectional) must also be identical.

Q: Can these parts be used interchangeably in PCB designs?

A: Yes. Both the SMLJ6.0A-TP and SMDJ6.0A use the identical DO-214AB (SMC) package footprint. PCB layouts require no modification when substituting between these parts. Packaging format (bulk vs. Tape & Reel) affects only the manufacturing assembly process, not the PCB design.

Q: What inventory levels are available?

A: SMLJ6.0A-TP: 1027 units in bulk packaging. SMDJ6.0A: 2352 units in Tape & Reel format. Both parts are in active production and available as new original stock.

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