SMLJ7.0A-TP Equivalent & Substitute Parts

Part Overview

The SMLJ7.0A-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 with a 7V reverse standoff voltage and provides 12V maximum clamping voltage at peak pulse current, delivering 3000W peak pulse power dissipation. The device is classified as Active product status and is suitable for applications requiring transient voltage suppression in the 7V protection range.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across critical parameters including voltage ratings, peak pulse current capacity, power dissipation, operating temperature range, and package form factor.

Substiute Parts

SMLJ7.0A-TP

Micro Commercial CoIn Stock: 946SMLJ7.0A-TP Datasheet

Current PartRFQ

SMDJ7.0A

Alpha & Omega Semiconductor Inc.In Stock: 2174SMDJ7.0A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMLJ7.0A-TP is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Voltage - Reverse Standoff: 7V
• Voltage - Breakdown (Min): 7.78V
• Voltage - Clamping (Max) @ Ipp: 12V
• Current - Peak Pulse (10/1000µs): 250A
• Power - Peak Pulse: 3000W

Mechanical Parameters (Must Match):

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

Functional Parameters (Must Match):

• Type: Zener
• Applications: General Purpose

The SMDJ7.0A manufactured by Alpha & Omega Semiconductor Inc. satisfies all electrical and mechanical equivalence criteria. Both devices share identical voltage ratings, peak pulse current capacity, power dissipation, package form factor, and functional classification. Substitution is valid based on these matching parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: SMLJ7.0A-TP

The SMLJ7.0A-TP remains the primary component choice when available. This device is manufactured by Micro Commercial Co and maintains Active product status with full compliance to REACH regulations. The operating temperature range extends to 175°C, providing maximum thermal headroom for applications operating at elevated junction temperatures.

Substitute Selection: SMDJ7.0A

The SMDJ7.0A manufactured by Alpha & Omega Semiconductor Inc. is a valid electrical and mechanical equivalent. This substitute maintains all critical voltage ratings, peak pulse current specifications, and power dissipation characteristics. The device is supplied in Tape & Reel (TR) packaging format and carries ROHS3 compliance certification, providing additional regulatory documentation for applications with RoHS requirements.

Packaging Consideration:

The SMLJ7.0A-TP is supplied in Bulk packaging, while the SMDJ7.0A is supplied in Tape & Reel format. Selection between these packaging options depends on procurement volume and assembly process requirements.

Temperature Range Consideration:

The SMDJ7.0A operating temperature range is -55°C to 150°C, which is 25°C narrower than the SMLJ7.0A-TP range of -55°C to 175°C. For applications requiring operation above 150°C junction temperature, the SMLJ7.0A-TP is the required selection.

Frequently Asked Questions (FAQ)

Q: Can SMDJ7.0A directly replace SMLJ7.0A-TP in all applications?

A: The SMDJ7.0A is electrically and mechanically equivalent for applications with maximum junction temperature requirements up to 150°C. Applications requiring operation above 150°C must use the SMLJ7.0A-TP to remain within the specified operating temperature range.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by equivalence in: Voltage - Reverse Standoff (7V), Voltage - Breakdown (7.78V), Voltage - Clamping (12V), Current - Peak Pulse (250A), Power - Peak Pulse (3000W), Package / Case (DO-214AB, SMC), and Unidirectional Channel count (1).

Q: Does packaging format affect electrical performance?

A: No. The Bulk packaging of SMLJ7.0A-TP and Tape & Reel packaging of SMDJ7.0A do not affect electrical performance. Packaging format selection is determined by procurement volume and assembly line automation requirements.

Q: Are both parts compliant with environmental regulations?

A: Both SMLJ7.0A-TP and SMDJ7.0A maintain REACH Unaffected status. The SMDJ7.0A additionally carries ROHS3 compliance certification. Applications with specific RoHS requirements should specify SMDJ7.0A.

Q: What is the difference in peak pulse power dissipation between these parts?

A: Both devices are rated for identical peak pulse power dissipation of 3000W at the specified 10/1000µs pulse waveform. No difference exists in power handling capability.

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

A: Yes. Both devices use identical DO-214AB, SMC surface-mount package form factor and pin configuration, enabling direct PCB layout compatibility without design modification.