SMCJ160C Equivalent & Substitute Parts

Part Overview

The SMCJ160C is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This bidirectional zener diode operates with a reverse standoff voltage of 160V and provides clamping at 271.95V with a peak pulse current of 5.8A in a surface-mount DO-214AB (SMC) package. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Reverse Standoff Voltage (Typ)	160V
Voltage Breakdown (Min)	168.75V
Voltage Clamping (Max) @ Ipp	271.95V
Peak Pulse Current (10/1000µs)	5.8A
Peak Pulse Power	1500W
Operating Temperature Range	-55°C to 150°C
Package Type	DO-214AB (SMC)
Mounting Type	Surface Mount
Bidirectional Channels	1
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the SMCJ160C is determined by strict alignment of electrical and mechanical parameters. All substitute parts must maintain:

Reverse Standoff Voltage: 160V (identical)
Package Type: DO-214AB (SMC) surface mount (identical)
Bidirectional Channels: 1 (identical)
Peak Pulse Power: 1500W or higher (equal or greater capacity)
Operating Temperature Range: Minimum -55°C to 150°C coverage
Voltage Clamping: Within acceptable range for the application (259V to 287V acceptable)
Peak Pulse Current: 5.2A to 5.8A for direct equivalents; 11.6A+ for higher-capacity alternatives

Substitute parts are grouped into two categories: direct electrical equivalents (matching 5.8A current rating) and higher-capacity alternatives (11.6A+ current rating for enhanced transient protection).

Parameter Comparison

Part Number	Manufacturer	Standoff Voltage	Clamping Voltage @ Ipp	Peak Pulse Current	Peak Pulse Power	Operating Temp Range	Package	Status
SMCJ160C	Littelfuse Inc.	160V	271.95V	5.8A	1500W	-55°C to 150°C	DO-214AB (SMC)	Obsolete
SMCJ160CA	Fairchild Semiconductor	160V	259V	5.8A	1500W	-55°C to 150°C	DO-214AB (SMC)	Active
SMCJ160CA-TP	Micro Commercial Co	160V	259V	5.8A	1500W	-55°C to 175°C	DO-214AB (SMC)	Active
SMCJ160CAE3/TR13	Microchip Technology	160V	259V	5.8A	1500W	-65°C to 150°C	DO-214AB (SMC)	Active
SMCJ160CE3/TR13	Microchip Technology	160V	287V	5.2A	1500W	-65°C to 150°C	DO-214AB (SMC)	Active
SMLJ160CA	Bourns Inc.	160V	259V	11.6A	3000W	-55°C to 150°C	DO-214AB (SMC)	Active
SMLJ160CA-TP	Micro Commercial Co	160V	259V	11.6A	3000W	-55°C to 175°C	DO-214AB (SMC)	Active
TV15C161JB-G	Comchip Technology	160V	259V	5.79A	1500W	-55°C to 150°C	DO-214AB (SMC)	Active
TV15C161JB-HF	Comchip Technology	160V	259V	5.79A	1500W	-55°C to 150°C	DO-214AB (SMC)	Active
TV30C161JB-G	Comchip Technology	160V	259V	11.58A	3000W	-55°C to 150°C	DO-214AB (SMC)	Active

Engineering Selection Recommendations

Direct Electrical Equivalents (1500W, 5.8A Class)

SMCJ160CA, SMCJ160CA-TP, SMCJ160CAE3/TR13, TV15C161JB-G, and TV15C161JB-HF provide direct functional equivalence to the SMCJ160C. All maintain 160V standoff voltage, 1500W peak pulse power, and 5.8A peak pulse current within the DO-214AB package. These parts are active and ROHS3 compliant. SMCJ160CA-TP and SMLJ160CA-TP offer extended operating temperature to 175°C. SMCJ160CAE3/TR13 extends the lower temperature limit to -65°C.

Higher-Capacity Alternatives (3000W, 11.6A Class)

SMLJ160CA, SMLJ160CA-TP, and TV30C161JB-G provide enhanced transient protection with doubled peak pulse power (3000W) and approximately doubled peak pulse current (11.6A). These parts maintain the same 160V standoff voltage and DO-214AB package footprint. Selection of higher-capacity alternatives is appropriate when circuit design permits the increased current handling or when enhanced protection margin is required.

All substitute parts are active products with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Selection should prioritize active manufacturer parts with established supply chains and current production status.

Frequently Asked Questions (FAQ)

Q: Can SMCJ160CA directly replace SMCJ160C?

A: Yes. SMCJ160CA maintains identical reverse standoff voltage (160V), peak pulse current (5.8A), peak pulse power (1500W), and DO-214AB package type. The clamping voltage is 259V versus 271.95V on the original, which is within acceptable substitution parameters for general-purpose TVS applications.

Q: What is the difference between SMCJ160CA and SMLJ160CA?

A: Both parts share the same 160V standoff voltage and DO-214AB package. SMLJ160CA provides higher peak pulse current (11.6A versus 5.8A) and doubled peak pulse power (3000W versus 1500W). SMLJ160CA is selected when circuit requirements demand greater transient energy absorption.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1), meeting current environmental and reliability standards.

Q: Does operating temperature range affect substitution?

A: Operating temperature range is a secondary selection criterion. SMCJ160CA-TP and SMLJ160CA-TP extend the upper limit to 175°C. SMCJ160CAE3/TR13 extends the lower limit to -65°C. Selection depends on circuit operating environment requirements.

Q: Can Comchip TV15C161JB series replace Littelfuse SMCJ160C?

A: Yes. TV15C161JB-G and TV15C161JB-HF maintain 160V standoff voltage, 5.79A peak pulse current, 1500W peak pulse power, and DO-214AB package compatibility. Both are active products with ROHS3 compliance.

Q: What packaging options are available for substitutes?

A: Substitute parts are available in Tape & Reel (TR) and Bulk packaging. SMCJ160CA-TP, SMCJ160CAE3/TR13, SMCJ160CE3/TR13, TV15C161JB-G, TV15C161JB-HF, TV30C161JB-G, SMLJ160CA, and SMLJ160CA-TP are standard packaging formats. Verify packaging requirements with procurement specifications.

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