SMCJ13 Equivalent & Substitute Parts

Part Overview

The SMCJ13 is a 13V Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc. in DO-214AB (SMC) surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing circuit protection applications requiring 13V standoff voltage and 1500W peak pulse power dissipation in general-purpose transient suppression circuits.

Key Parameters

Parameter	SMCJ13 (Littelfuse)
Voltage - Reverse Standoff (Typ)	13V
Voltage - Breakdown (Min)	13.64V
Voltage - Clamping (Max) @ Ipp	22.58V
Current - Peak Pulse (10/1000µs)	69.8A
Power - Peak Pulse	1500W
Type	Zener
Unidirectional Channels	1
Mounting Type	Surface Mount
Package / Case	DO-214AB, SMC
Operating Temperature	-55°C ~ 150°C (TJ)
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SMCJ13 are grouped based on strict electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

Voltage - Reverse Standoff (Typ): 13V (exact match required)
Voltage - Breakdown (Min): 13.64V to 14.4V (acceptable range)
Voltage - Clamping (Max) @ Ipp: 21.5V to 22.58V (acceptable range)
Current - Peak Pulse (10/1000µs): 69.7A to 69.8A (1500W class)
Package / Case: DO-214AB, SMC (mechanical compatibility)
Mounting Type: Surface Mount (assembly compatibility)
Type: Zener, Unidirectional (functional equivalence)

Secondary Grouping (Higher Power Rating):

Current - Peak Pulse (10/1000µs): 139.4A to 139.53A (3000W class)
Voltage parameters identical to primary group
Same package and mounting type
Suitable for applications requiring higher transient current handling

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse	Power - Peak Pulse	Operating Temperature	Product Status
SMCJ13	Littelfuse Inc.	13V	13.64V	22.58V	69.8A	1500W	-55°C ~ 150°C	Obsolete
SMCJ13A	ANBON SEMICONDUCTOR	13V	14.4V	21.5V	69.7A	1500W	-55°C ~ 150°C	Active
SMCJ13A-13-F	Diodes Incorporated	13V	14.4V	21.5V	69.7A	1500W	-55°C ~ 150°C	Active
SMCJ13A-TP	Micro Commercial Co	13V	14.4V	21.5V	69.8A	1500W	-55°C ~ 175°C	Active
SMCJ13AE3/TR13	Microchip Technology	13V	14.4V	21.5V	69.7A	1500W	-65°C ~ 150°C	Active
SMCJ13E3/TR13	Microchip Technology	13V	14.4V	23.8V	63A	1500W	-65°C ~ 150°C	Active
SMLJ13A	Bourns Inc.	13V	14.4V	21.5V	139.4A	3000W	-55°C ~ 150°C	Active
TV15C130J-G	Comchip Technology	13V	14.4V	21.5V	69.77A	1500W	-55°C ~ 150°C	Active
TV30C130J-G	Comchip Technology	13V	14.4V	21.5V	139.53A	3000W	-55°C ~ 150°C	Active

Engineering Selection Recommendations

1500W Class Substitutes (Direct Replacement): SMCJ13A, SMCJ13A-13-F, SMCJ13A-TP, SMCJ13AE3/TR13, TV15C130J-G are direct electrical and mechanical equivalents. All are active products with ROHS3 compliance and MSL 1 rating. Selection among these depends on packaging availability (Cut Tape vs. Tape & Reel) and operating temperature requirements. SMCJ13A-TP supports extended temperature to 175°C; SMCJ13AE3/TR13 and SMCJ13E3/TR13 support extended temperature to -65°C minimum.

1500W Class with Clamping Voltage Variation: SMCJ13E3/TR13 exhibits 23.8V clamping voltage with reduced peak pulse current (63A). This part is suitable only when higher clamping voltage is acceptable and peak pulse current requirements do not exceed 63A.

3000W Class Substitutes (Higher Power Rating): SMLJ13A and TV30C130J-G provide doubled peak pulse current (139.4A and 139.53A respectively) and 3000W power dissipation. These are suitable for applications requiring enhanced transient suppression capability while maintaining identical 13V standoff voltage. Both are active products with ROHS3 compliance.

Compliance and Availability: All substitute parts maintain ROHS3 compliance and MSL 1 rating. SMLJ13A carries REACH Affected status; all others are REACH Unaffected. Inventory availability ranges from 735 to 20200 units across suppliers.

Frequently Asked Questions (FAQ)

Q: Can SMCJ13A directly replace SMCJ13 in existing designs? A: Yes. SMCJ13A maintains identical 13V reverse standoff voltage, equivalent peak pulse current (69.7A vs. 69.8A), and identical 1500W power rating. Clamping voltage is 21.5V versus 22.58V, which is within acceptable tolerance for general-purpose transient suppression. Package and mounting type are identical (DO-214AB, SMC surface mount).

Q: What is the difference between 1500W and 3000W rated parts? A: The 3000W class parts (SMLJ13A, TV30C130J-G) handle approximately double the peak pulse current (139A vs. 69A) while maintaining the same 13V standoff voltage and clamping voltage characteristics. Selection depends on the magnitude of transient currents in the application circuit.

Q: Are there temperature rating differences among substitutes? A: Yes. Most parts operate -55°C to 150°C. SMCJ13A-TP extends to 175°C maximum. SMCJ13AE3/TR13 and SMCJ13E3/TR13 extend to -65°C minimum. Select based on application thermal requirements.

Q: What packaging options are available? A: Substitutes are supplied in Cut Tape (CT) & Digi-Reel or Tape & Reel (TR) formats. All maintain DO-214AB (SMC) physical package for PCB assembly compatibility.

Q: Does clamping voltage variation affect substitutability? A: Clamping voltage must remain within the acceptable range for circuit protection. SMCJ13E3/TR13 at 23.8V clamping is acceptable for applications tolerating higher clamping voltage. All other substitutes cluster at 21.5V, which is compatible with the original 22.58V specification.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitute parts carry ROHS3 compliance certification. SMLJ13A is REACH Affected; all others are REACH Unaffected.

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