SMCJ11CA-13 Equivalent & Substitute Parts

Part Overview

The SMCJ11CA-13 is a bidirectional transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated in the DO-214AB (SMC) surface mount package. This component is designed for general-purpose transient voltage protection with an 11V reverse standoff voltage and 18.2V maximum clamping voltage. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility for new designs or production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	SMCJ11CA-13
Manufacturer	Diodes Incorporated
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Bidirectional Channels	1
Voltage - Reverse Standoff (Typ)	11V
Voltage - Breakdown (Min)	12.2V
Voltage - Clamping (Max) @ Ipp	18.2V
Current - Peak Pulse (10/1000µs)	82.4A
Power - Peak Pulse	1500W (1.5kW)
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	DO-214AB, SMC
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SMCJ11CA-13 are classified based on strict electrical and mechanical parameter alignment:

Direct Electrical Equivalents maintain identical or near-identical specifications across all critical parameters: reverse standoff voltage (11V), breakdown voltage (12.2V minimum), clamping voltage (18.2V maximum), peak pulse current (82.4A ±0.1A), peak pulse power (1500W), operating temperature range, and DO-214AB (SMC) package configuration. These parts are interchangeable without circuit redesign.

Functional Equivalents share the same voltage class (11V standoff), clamping voltage (18.2V), and package type but may differ in peak pulse current specifications or operating temperature range. These parts maintain the same protection function and package footprint.

Higher Power Alternatives provide the same voltage protection parameters but with increased peak pulse current and power dissipation capability (3000W vs. 1500W), suitable for applications requiring enhanced transient energy absorption.

Voltage Class Variants operate at different reverse standoff voltages (13V, 15V) while maintaining the same package and general application class. These are suitable only when circuit voltage requirements permit the higher protection threshold.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package / Case	Product Status	RoHS Status
SMCJ11CA-13	Diodes Incorporated	11V	18.2V	82.4A	1500W	-55°C ~ 150°C	DO-214AB, SMC	Discontinued	RoHS non-compliant
SMCJ11CA-13-F	Diodes Incorporated	11V	18.2V	82.4A	1500W	-55°C ~ 150°C	DO-214AB, SMC	Active	ROHS3 Compliant
SMCJ11CA	Good-Ark Semiconductor	11V	18.2V	82.4A	1500W	-55°C ~ 150°C	DO-214AB, SMC	Active	ROHS3 Compliant
SMCJ11CA-TP	Micro Commercial Co	11V	18.2V	82.5A	1500W	-55°C ~ 175°C	DO-214AB, SMC	Active	ROHS3 Compliant
1.5SMC13CA	Taiwan Semiconductor Corporation	11.1V	18.2V	86A	1500W	-55°C ~ 150°C	DO-214AB, SMC	Active	ROHS3 Compliant
SMCJ15CA	EVVO Semi	15V	24.4V	61.5A	1500W	-55°C ~ 150°C	DO-214AB, SMC	Active	ROHS3 Compliant
SMDJ11CA	Alpha & Omega Semiconductor Inc.	11V	18.2V	164.9A	3000W	-55°C ~ 150°C	DO-214AB, SMC	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents):

SMCJ11CA-13-F (Diodes Incorporated) and SMCJ11CA (Good-Ark Semiconductor) are direct electrical and mechanical equivalents. Both maintain identical voltage parameters (11V standoff, 18.2V clamping), peak pulse current (82.4A), and power dissipation (1500W). SMCJ11CA-13-F is the active product from the original manufacturer with ROHS3 compliance, making it the preferred choice for new designs. SMCJ11CA from Good-Ark Semiconductor offers equivalent performance with higher inventory availability (17,100 units).

Extended Temperature Alternative:

SMCJ11CA-TP (Micro Commercial Co) provides identical electrical specifications with an extended operating temperature range (-55°C to 175°C versus -55°C to 150°C), suitable for applications requiring higher thermal performance. Peak pulse current specification is 82.5A, within acceptable tolerance of the original 82.4A.

Higher Power Alternative:

SMDJ11CA (Alpha & Omega Semiconductor Inc.) maintains the same 11V voltage class and 18.2V clamping voltage but doubles the peak pulse current capability (164.9A) and power dissipation (3000W). This part is suitable for applications requiring enhanced transient energy absorption while maintaining the same voltage protection threshold and package footprint.

Voltage Class Variant:

1.5SMC13CA (Taiwan Semiconductor Corporation) operates at 11.1V reverse standoff with 18.2V clamping voltage and 86A peak pulse current. This part is suitable only when circuit design permits the slightly higher voltage threshold and is designated for telecom applications.

Not Recommended:

SMCJ15CA (EVVO Semi) operates at 15V reverse standoff with 24.4V clamping voltage, representing a different voltage protection class. This part is not suitable as a direct substitute unless circuit requirements specifically call for 15V protection.

Frequently Asked Questions (FAQ)

Q: Can SMCJ11CA-13-F be used as a direct replacement for SMCJ11CA-13?

A: Yes. SMCJ11CA-13-F is the active equivalent from Diodes Incorporated with identical electrical specifications (11V standoff, 18.2V clamping, 82.4A peak pulse current, 1500W power) and the same DO-214AB (SMC) package. The primary difference is ROHS3 compliance status and packaging format (Tape & Reel).

Q: What is the difference between SMCJ11CA from different manufacturers?

A: SMCJ11CA from Good-Ark Semiconductor and SMCJ11CA-13-F from Diodes Incorporated share identical electrical and mechanical specifications. The primary differences are manufacturer, product status (both active), and compliance certifications. Both are suitable substitutes with no circuit modifications required.

Q: When should SMCJ11CA-TP be selected over other 11V equivalents?

A: SMCJ11CA-TP is selected when the application requires an extended operating temperature range up to 175°C. All other electrical parameters remain equivalent to the original SMCJ11CA-13. The peak pulse current specification (82.5A) is within acceptable tolerance.

Q: Is SMDJ11CA a suitable substitute?

A: SMDJ11CA is a functional substitute only when the application can accommodate doubled power dissipation capability (3000W versus 1500W). The voltage protection parameters (11V standoff, 18.2V clamping) remain identical. This part is suitable for high-energy transient environments while maintaining the same package footprint and voltage class.

Q: Why is SMCJ15CA not recommended as a substitute?

A: SMCJ15CA operates at a different voltage protection class (15V standoff, 24.4V clamping) compared to the original SMCJ11CA-13 (11V standoff, 18.2V clamping). Substitution is only appropriate if circuit design requirements specifically call for 15V protection. Using a higher voltage class may result in inadequate protection for 11V-class circuits.

Q: Are all substitute parts available in the same DO-214AB (SMC) package?

A: Yes. All listed substitute parts use the DO-214AB (SMC) surface mount package, ensuring mechanical and footprint compatibility without PCB redesign.

Q: What compliance considerations apply when selecting a substitute?

A: The original SMCJ11CA-13 is RoHS non-compliant. All active substitute parts listed (SMCJ11CA-13-F, SMCJ11CA, SMCJ11CA-TP, 1.5SMC13CA, SMCJ15CA, SMDJ11CA) are ROHS3 compliant, meeting current environmental and regulatory requirements for new designs and production.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message