SMCJ150CA-13 Equivalent & Substitute Parts

Part Overview

The SMCJ150CA-13 is a transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 150V reverse standoff voltage with a 243V maximum clamping voltage and 6.2A peak pulse current capability in a DO-214AB (SMC) package. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and ensure supply chain availability.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	150	V
Voltage - Breakdown (Min)	167	V
Voltage - Clamping (Max) @ Ipp	243	V
Current - Peak Pulse (10/1000µs)	6.2	A
Power - Peak Pulse	1500	W
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature	-55°C ~ 150°C	TJ
Type	Zener	—
Bidirectional Channels	1	—

Substitute Part Grouping Explanation

Substitution eligibility for the SMCJ150CA-13 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

Voltage - Reverse Standoff (Typ): 150V
Voltage - Breakdown (Min): 167V
Voltage - Clamping (Max) @ Ipp: 243V
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
Bidirectional Channels: 1
Type: Zener

Acceptable Variation Parameters:

Current - Peak Pulse (10/1000µs): 6.2A minimum (higher values acceptable for increased surge capacity)
Power - Peak Pulse: 1500W minimum (higher values acceptable)
Operating Temperature: -55°C ~ 150°C minimum range (extended ranges acceptable)

Substitute parts are grouped into two categories based on peak pulse current and power dissipation capacity: standard-performance equivalents (6.2A / 1500W class) and enhanced-performance alternatives (12.3A–20.6A / 3000W–5000W class).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Reverse Standoff (V)	Voltage - Breakdown (V)	Voltage - Clamping (V)	Current - Peak Pulse (A)	Power - Peak Pulse (W)	Package	Product Status	RoHS Status
SMCJ150CA-13	Diodes Incorporated	150	167	243	6.2	1500	DO-214AB, SMC	Discontinued	Non-compliant
SMCJ150CA-13-F	Diodes Incorporated	150	167	243	6.2	1500	DO-214AB, SMC	Active	ROHS3 Compliant
SMCJ150CA	Meritek	150	167	243	6.17	1500	DO-214AB, SMC	Active	ROHS3 Compliant
SMCJ150CA-TP	Micro Commercial Co	150	167	243	6.2	1500	DO-214AB, SMC	Active	ROHS3 Compliant
SMDJ150CA	Alpha & Omega Semiconductor Inc.	150	167	243	12.4	3000	DO-214AB, SMC	Active	ROHS3 Compliant
SMDJ150CA-T7	Littelfuse Inc.	150	167	243	12.3	3000	DO-214AB, SMC	Active	ROHS3 Compliant
SMLJ150CA	Bourns Inc.	150	167	243	12.4	3000	DO-214AB, SMC	Active	ROHS3 Compliant
5.0SMDJ150CA	MDE Semiconductor Inc	150	167	243	20.6	5000	DO-214AB, SMC	Active	ROHS3 Compliant
5.0SMDJ150CA-T7	Littelfuse	150	167	243	20.6	5000	DO-214AB, SMC	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (Pin-Compatible, Electrical Equivalent):

SMCJ150CA-13-F (Diodes Incorporated) is the primary direct replacement. This part maintains identical electrical specifications (150V standoff, 243V clamping, 6.2A peak pulse) and package configuration while offering active product status and ROHS3 compliance. The -13-F variant differs only in packaging format (Tape & Reel) and regulatory compliance from the original discontinued part.

SMCJ150CA (Meritek) provides equivalent performance with negligible variation in peak pulse current (6.17A vs. 6.2A). Active status and ROHS3 compliance support long-term supply chain stability.

SMCJ150CA-TP (Micro Commercial Co) delivers identical electrical performance with extended operating temperature range (-55°C ~ 175°C vs. -55°C ~ 150°C), providing additional thermal margin in high-temperature environments.

Enhanced-Performance Alternatives:

SMDJ150CA (Alpha & Omega Semiconductor Inc.), SMDJ150CA-T7 (Littelfuse Inc.), and SMLJ150CA (Bourns Inc.) maintain voltage specifications while doubling peak pulse current (12.3–12.4A) and power dissipation (3000W). These parts are suitable for applications requiring increased transient surge capacity without voltage specification changes.

5.0SMDJ150CA (MDE Semiconductor Inc) and 5.0SMDJ150CA-T7 (Littelfuse) provide maximum surge protection with 20.6A peak pulse current and 5000W power dissipation. These are appropriate for high-energy transient environments where the original 1500W specification may be insufficient.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, supporting regulatory requirements for new designs.

Frequently Asked Questions (FAQ)

Q: Can SMCJ150CA-13-F be used as a direct drop-in replacement for SMCJ150CA-13?

A: Yes. SMCJ150CA-13-F is electrically and mechanically identical to SMCJ150CA-13, differing only in packaging format (Tape & Reel) and regulatory compliance status. Both use DO-214AB (SMC) package with identical pin configuration and electrical performance.

Q: What is the difference between standard SMCJ150CA variants and SMDJ150CA variants?

A: SMCJ150CA variants maintain the original 6.2A peak pulse current and 1500W power dissipation. SMDJ150CA variants double these specifications to 12.3–12.4A and 3000W respectively, while maintaining identical voltage ratings (150V standoff, 243V clamping). Selection depends on transient energy requirements in the application.

Q: Are the 5.0SMDJ150CA series parts compatible with SMCJ150CA-13 designs?

A: Yes, from an electrical and mechanical standpoint. The 5.0SMDJ150CA series maintains voltage specifications and DO-214AB package compatibility while providing 20.6A peak pulse current and 5000W power dissipation. These parts are suitable for applications experiencing higher-energy transients than the original 1500W specification accommodates.

Q: Does operating temperature range affect substitution eligibility?

A: Operating temperature range does not restrict substitution. The original SMCJ150CA-13 specifies -55°C ~ 150°C. Substitute parts with identical or extended ranges (such as SMCJ150CA-TP at -55°C ~ 175°C) are fully compatible. Narrower ranges would not be acceptable.

Q: What is the significance of ROHS3 compliance in substitute selection?

A: ROHS3 compliance indicates conformance to current regulatory requirements for hazardous substance restrictions. The original SMCJ150CA-13 is non-compliant. All active substitute parts listed are ROHS3 compliant, supporting regulatory requirements for new production and design updates.

Q: Can Meritek SMCJ150CA be substituted for Diodes Incorporated SMCJ150CA-13?

A: Yes. Meritek SMCJ150CA maintains identical voltage specifications and package configuration with negligible peak pulse current variation (6.17A vs. 6.2A). Active product status and ROHS3 compliance support supply chain continuity.

Q: How do I determine which substitute part is appropriate for my application?

A: Evaluate based on transient energy requirements. For applications matching the original 1500W specification, use SMCJ150CA-13-F, Meritek SMCJ150CA, or SMCJ150CA-TP. For applications requiring increased surge capacity, select SMDJ150CA variants (3000W) or 5.0SMDJ150CA variants (5000W). All maintain voltage specifications and package compatibility.

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