SMLJ160A-TP Equivalent & Substitute Parts

Part Overview

The SMLJ160A-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 160V reverse standoff voltage and provides 3000W peak pulse power dissipation in a compact DO-214AB (SMC) package. The part is currently in active production status with 818 pieces available in bulk packaging. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, packaging format preferences, or supply chain considerations.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	160	V
Voltage - Breakdown (Min)	178	V
Voltage - Clamping (Max) @ Ipp	259	V
Current - Peak Pulse (10/1000µs)	11.6	A
Power - Peak Pulse	3000	W
Operating Temperature Range	-55 to 175	°C (TJ)
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Type	Zener	—
Unidirectional Channels	1	—

Substitute Part Grouping Explanation

Substitution eligibility for the SMLJ160A-TP is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

Voltage - Reverse Standoff (Typ): 160V
Voltage - Breakdown (Min): 178V
Voltage - Clamping (Max) @ Ipp: 259V
Current - Peak Pulse (10/1000µs): 11.6A
Power - Peak Pulse: 3000W

Mechanical Parameters (Must Match):

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

Operational Parameters (Must Match):

Applications: General Purpose
Category: Transient Voltage Suppressors (TVS)

The SMDJ160A from Alpha & Omega Semiconductor Inc. meets all electrical and mechanical substitution criteria. Packaging format differs (Tape & Reel vs. Bulk) and maximum operating temperature differs (150°C vs. 175°C), which are secondary considerations that do not affect functional equivalence in general-purpose applications.

Parameter Comparison

Parameter	SMLJ160A-TP (Micro Commercial Co)	SMDJ160A (Alpha & Omega Semiconductor)	Match Status
Voltage - Reverse Standoff (Typ)	160V	160V	Equivalent
Voltage - Breakdown (Min)	178V	178V	Equivalent
Voltage - Clamping (Max) @ Ipp	259V	259V	Equivalent
Current - Peak Pulse (10/1000µs)	11.6A	11.6A	Equivalent
Power - Peak Pulse	3000W	3000W	Equivalent
Operating Temperature Range	-55°C to 175°C (TJ)	-55°C to 150°C (TJ)	SMLJ160A-TP has wider range
Package / Case	DO-214AB, SMC	DO-214AB, SMC	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Type	Zener	Zener	Equivalent
Unidirectional Channels	1	1	Equivalent
Packaging Format	Bulk	Tape & Reel (TR)	Different format
Product Status	Active	Active	Both active
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent
ECCN	EAR99	EAR99	Equivalent

Engineering Selection Recommendations

Primary Selection (SMLJ160A-TP): The SMLJ160A-TP remains the primary choice when bulk packaging is required and operating temperatures up to 175°C (TJ) are specified. Both parts carry Active product status and REACH Unaffected compliance, ensuring long-term availability and regulatory alignment.

Substitute Selection (SMDJ160A): The SMDJ160A is functionally equivalent for applications where operating temperature does not exceed 150°C (TJ). This substitute is appropriate when Tape & Reel packaging is preferred for automated assembly processes or when higher inventory availability (4400 pieces) is advantageous. Both parts are ROHS3 Compliant and carry identical electrical performance specifications.

Compliance Considerations: Both parts share identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications, confirming regulatory equivalence for export and procurement purposes.

Frequently Asked Questions (FAQ)

Q: Can SMDJ160A replace SMLJ160A-TP in all applications?

A: The SMDJ160A is electrically and mechanically equivalent for general-purpose TVS applications. The primary difference is the maximum operating junction temperature: SMDJ160A is rated to 150°C (TJ) while SMLJ160A-TP is rated to 175°C (TJ). Substitution is valid when circuit operating conditions do not require the extended temperature range.

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

A: Bulk packaging (SMLJ160A-TP) is supplied loose and is suitable for manual assembly or small-volume applications. Tape & Reel packaging (SMDJ160A) is wound on continuous tape for automated pick-and-place assembly equipment. Both contain identical components; packaging format selection depends on assembly process requirements.

Q: Are the electrical specifications identical between these parts?

A: Yes. Both parts share identical specifications for Voltage - Reverse Standoff (160V), Voltage - Breakdown (178V), Voltage - Clamping (259V), Current - Peak Pulse (11.6A), and Power - Peak Pulse (3000W). They are functionally interchangeable from an electrical performance standpoint.

Q: Do both parts meet RoHS compliance?

A: The SMDJ160A is explicitly marked as ROHS3 Compliant. The SMLJ160A-TP carries REACH Unaffected status. Both parts meet current environmental compliance requirements for their respective markets.

Q: Which part should be selected for high-temperature applications?

A: The SMLJ160A-TP is specified for operating temperatures up to 175°C (TJ) and is the appropriate choice for applications requiring extended temperature performance. The SMDJ160A is limited to 150°C (TJ).

Q: Are these parts suitable for power line protection applications?

A: No. Both the SMLJ160A-TP and SMDJ160A are designated for general-purpose applications and do not carry power line protection certification. Applications requiring power line protection require components specifically rated for that function.

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