SMCJ64CA-TP Equivalent & Substitute Parts

Part Overview

The SMCJ64CA-TP is a transient voltage suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection in surface-mount applications. This bidirectional Zener diode operates with a 64V reverse standoff voltage and provides 103V clamping at peak pulse current, delivering 1500W peak pulse power dissipation in a DO-214AB (SMC) package. The component is ROHS3 compliant and maintains unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical performance parameters, package compatibility, and operational specifications to ensure direct circuit-level interchangeability or functional equivalence for design flexibility and supply chain optimization.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	64V	V
Voltage - Breakdown (Min)	71.1V	V
Voltage - Clamping (Max) @ Ipp	103V	V
Current - Peak Pulse (10/1000µs)	14.6A	A
Power - Peak Pulse	1500W	W
Type	Zener	—
Bidirectional Channels	1	—
Package / Case	DO-214AB, SMC	—
Operating Temperature	-55°C ~ 175°C	°C
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical and mechanical compatibility with the SMCJ64CA-TP:

Direct Substitutes maintain identical electrical specifications: 64V reverse standoff voltage, 71.1V minimum breakdown voltage, 103V clamping voltage, and 1500W peak pulse power rating. These parts are pin-compatible and functionally equivalent for direct replacement in existing designs.

Similar Substitutes share the core voltage specifications (64V standoff, 103V clamping) but differ in peak pulse current rating and power dissipation capacity. These parts are suitable for applications where higher current handling or power dissipation is acceptable or beneficial, provided circuit design accommodates the different electrical characteristics.

Key Parameters Determining Substitution:

Voltage - Reverse Standoff (Typ): 64V ± tolerance
Voltage - Clamping (Max) @ Ipp: 103V
Package / Case: DO-214AB, SMC
Bidirectional Channels: 1
Type: Zener
Mounting Type: Surface Mount

Parameter Comparison

Part Number	Manufacturer	Standoff Voltage (V)	Breakdown Min (V)	Clamping Voltage (V)	Peak Pulse Current (A)	Peak Pulse Power (W)	Operating Temp (°C)	Package	RoHS Status
SMCJ64CA-TP	Micro Commercial Co	64	71.1	103	14.6	1500	-55 ~ 175	DO-214AB, SMC	ROHS3
SMCJ64CA	Meritek	64	71.1	103	14.56	1500	-55 ~ 150	DO-214AB, SMC	ROHS3
SMCJ64CA-13-F	Diodes Incorporated	64	71.1	103	14.6	1500	-55 ~ 150	DO-214AB, SMC	ROHS3
SMCJ64CA-E3/57T	Vishay General Semiconductor - Diodes Division	64	71.1	103	14.6	1500	-55 ~ 150	DO-214AB, SMC	ROHS3
1.5SMC75CA	Taiwan Semiconductor Corporation	64.1	71.3	103	15	1500	-55 ~ 150	DO-214AB, SMC	ROHS3
5.0SMDJ64CA	MDE Semiconductor Inc	64	71.1	103	48.6	5000	-55 ~ 150	DO-214AB, SMC	ROHS3
5.0SMDJ64CA-T7	Littelfuse Inc.	64	71.1	103	48.6	5000	-65 ~ 150	DO-214AB, SMC	ROHS3
SMDJ64CA	Alpha & Omega Semiconductor Inc.	64	71.1	103	29.2	3000	-55 ~ 150	DO-214AB, SMC	ROHS3
SMDJ64CA-T7	Littelfuse Inc.	64	71.1	103	29.1	3000	-65 ~ 150	DO-214AB, SMC	ROHS3

Engineering Selection Recommendations

Direct Replacement Candidates: SMCJ64CA (Meritek), SMCJ64CA-13-F (Diodes Incorporated), and SMCJ64CA-E3/57T (Vishay) are direct electrical equivalents with matching 64V standoff, 103V clamping, and 1500W power ratings. All three maintain ROHS3 compliance and DO-214AB package compatibility. Selection among these options depends on packaging format availability (Tape & Reel vs. Cut Tape) and supply chain considerations. Operating temperature range for Meritek and Diodes variants extends to -55°C minimum; Vishay variant maintains -55°C to -150°C range.

Higher Current Capacity Alternatives: SMDJ64CA series (Alpha & Omega, Littelfuse) and 5.0SMDJ64CA series (MDE, Littelfuse) provide enhanced current handling at 29.1–29.2A and 48.6A respectively, with corresponding power dissipation increases to 3000W and 5000W. These parts maintain identical voltage specifications and package format. Selection is appropriate when circuit design permits higher current capacity or when enhanced transient protection margin is required. Littelfuse 5.0SMDJ64CA-T7 extends minimum operating temperature to -65°C.

Marginal Voltage Variant: 1.5SMC75CA (Taiwan Semiconductor Corporation) presents standoff voltage of 64.1V and breakdown minimum of 71.3V, representing minor deviation from specified 64V and 71.1V parameters. This part maintains 103V clamping and 1500W power rating with identical package format and ROHS3 compliance. Selection requires confirmation that 0.1V standoff variance and 0.2V breakdown variance are acceptable within circuit design tolerances.

All substitute candidates maintain ROHS3 compliance, REACH unaffected status, and EAR99 export classification consistent with the primary part.

Frequently Asked Questions (FAQ)

Q: Can SMCJ64CA (Meritek) directly replace SMCJ64CA-TP in production? A: Yes. Meritek SMCJ64CA matches all critical electrical parameters: 64V standoff, 71.1V breakdown, 103V clamping, 14.56A peak pulse current, and 1500W power dissipation. Package format (DO-214AB, SMC) and pin configuration are identical. Operating temperature range differs slightly (-55°C to 150°C vs. -55°C to 175°C); confirm application does not require operation above 150°C.

Q: What is the difference between SMCJ64CA-TP and SMDJ64CA variants? A: SMDJ64CA series maintains identical voltage specifications (64V standoff, 103V clamping) but provides higher peak pulse current (29.1–29.2A) and power dissipation (3000W) compared to SMCJ64CA-TP (14.6A, 1500W). Both use DO-214AB package. SMDJ variants are suitable for applications requiring enhanced transient protection or higher energy absorption capacity.

Q: Is 1.5SMC75CA compatible with SMCJ64CA-TP? A: 1.5SMC75CA shares the 103V clamping voltage and 1500W power rating with identical DO-214AB package. However, standoff voltage is 64.1V (vs. 64V) and breakdown minimum is 71.3V (vs. 71.1V). These minor deviations may be acceptable depending on circuit design margins. Verify application tolerances before substitution.

Q: What packaging options are available for equivalent parts? A: Direct equivalents are available in Tape & Reel (TR) and Cut Tape (CT) formats. SMCJ64CA-TP is supplied in Tape & Reel. Meritek SMCJ64CA, Diodes SMCJ64CA-13-F, and Vishay SMCJ64CA-E3/57T offer packaging flexibility. Confirm packaging format compatibility with assembly equipment before procurement.

Q: Can higher-power variants (5.0SMDJ64CA, SMDJ64CA) be used in place of SMCJ64CA-TP? A: Yes, provided circuit design accommodates increased current capacity. Both maintain 64V standoff and 103V clamping specifications with DO-214AB package compatibility. Higher current ratings (29.1–48.6A) and power dissipation (3000–5000W) provide enhanced protection margin. No circuit modification is required; these parts are direct pin-compatible upgrades.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance, REACH unaffected status, and EAR99 export classification consistent with SMCJ64CA-TP specifications.

Q: What is the operating temperature consideration when selecting substitutes? A: SMCJ64CA-TP operates from -55°C to 175°C. Most direct equivalents (Meritek, Diodes, Vishay) operate to -55°C to 150°C, limiting high-temperature applications. Littelfuse variants (SMDJ64CA-T7, 5.0SMDJ64CA-T7) extend minimum temperature to -65°C. Confirm application temperature requirements before selection.

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