SMCJ7.5CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMCJ7.5CE3/TR13 is a bidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 7.5V reverse standoff voltage, 14.3V maximum clamping voltage, and 104.9A peak pulse current capability in a DO-214AB (SMC) package format. The part is actively produced and ROHS3 compliant with unlimited moisture sensitivity rating.

Equivalent and substitute parts are identified based on matching or superior electrical performance within the same package category, maintaining compatibility with 7.5V standoff voltage specifications and general-purpose transient suppression applications.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	7.5	V
Voltage - Breakdown (Min)	8.33	V
Voltage - Clamping (Max) @ Ipp	14.3	V
Current - Peak Pulse (10/1000µs)	104.9	A
Power - Peak Pulse	1500	W
Operating Temperature Range	-65 to 150	°C (TJ)
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Type	Zener	—
Bidirectional Channels	1	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the SMCJ7.5CE3/TR13 are classified based on the following substitution criteria:

Primary Matching Parameters:

Voltage - Reverse Standoff (Typ): 7.5V
Bidirectional Channels: 1
Package / Case: DO-214AB or SMC equivalent
Mounting Type: Surface Mount
Type: Zener TVS Diode
Applications: General Purpose

Acceptable Variation Parameters:

Voltage - Clamping (Max) @ Ipp: 12.9V to 14.3V (lower clamping voltage provides enhanced protection)
Current - Peak Pulse (10/1000µs): 104.9A or higher (higher current capability maintains or improves performance)
Power - Peak Pulse: 1500W or higher (higher power rating provides margin)
Operating Temperature Range: -55°C to 175°C (extended or equivalent range acceptable)

All substitute parts maintain ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and active product status.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package / Case	RoHS Status
SMCJ7.5CE3/TR13	Microchip Technology	7.5V	14.3V	104.9A	1500W	-65 to 150°C	DO-214AB, SMC	ROHS3 Compliant
SMCJ7.5CA-TP	Micro Commercial Co	7.5V	12.9V	116.3A	1500W	-55 to 175°C	DO-214AB, SMC	ROHS3 Compliant
3SMC7.5CA TR13 PBFREE	Central Semiconductor Corp	7.5V	12.9V	232.6A	3000W	-65 to 150°C	DO-214AB, SMC	ROHS3 Compliant
SMCJ7.5CA	Taiwan Semiconductor Corporation	7.5V	12.9V	122A	1500W	-55 to 150°C	DO-214AB, SMC	ROHS3 Compliant
SMCJ7.5CA-13-F	Diodes Incorporated	7.5V	12.9V	116.3A	1500W	-55 to 150°C	DO-214AB, SMC	ROHS3 Compliant
SMDJ7.5CA	Alpha & Omega Semiconductor Inc.	7.5V	12.9V	232.6A	3000W	-55 to 150°C	DO-214AB, SMC	ROHS3 Compliant
SMLJ7.5CA	Bourns Inc.	7.5V	12.9V	232.6A	3000W	-55 to 150°C	DO-214AB, SMC	ROHS3 Compliant

Engineering Selection Recommendations

Direct Substitutes (Equivalent Performance):

SMCJ7.5CA-TP (Micro Commercial Co) and SMCJ7.5CA-13-F (Diodes Incorporated) provide equivalent electrical performance to the SMCJ7.5CE3/TR13 with identical 1500W peak pulse power rating and comparable peak pulse current specifications (116.3A). Both maintain ROHS3 compliance and active product status. Operating temperature range extends to 175°C for SMCJ7.5CA-TP, providing thermal margin for extended-range applications.

SMCJ7.5CA (Taiwan Semiconductor Corporation) offers equivalent performance with 122A peak pulse current and 1500W power rating, maintaining ROHS3 compliance and active status.

Enhanced Performance Substitutes (Superior Specifications):

3SMC7.5CA TR13 PBFREE (Central Semiconductor Corp), SMDJ7.5CA (Alpha & Omega Semiconductor Inc.), and SMLJ7.5CA (Bourns Inc.) provide doubled peak pulse current capability (232.6A) and doubled power dissipation (3000W) while maintaining the 7.5V standoff voltage specification. These components deliver enhanced transient suppression margin and are suitable for applications requiring higher energy absorption. All three maintain ROHS3 compliance and active product status.

Compliance Considerations:

All substitute parts listed are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), matching the original component's environmental qualification. SMLJ7.5CA carries REACH Affected status, whereas the original SMCJ7.5CE3/TR13 and all other substitutes are REACH Unaffected.

Frequently Asked Questions (FAQ)

Q: Can SMCJ7.5CA-TP replace SMCJ7.5CE3/TR13 in existing designs?

A: Yes. SMCJ7.5CA-TP maintains identical 7.5V reverse standoff voltage, 1500W peak pulse power rating, and DO-214AB package format. The 12.9V clamping voltage is lower than the original 14.3V, providing improved transient suppression. Both components are ROHS3 compliant with active product status.

Q: What is the difference between 1500W and 3000W rated parts?

A: Peak pulse power rating indicates energy absorption capability during transient events. 3000W-rated parts (SMDJ7.5CA, SMLJ7.5CA, 3SMC7.5CA TR13 PBFREE) absorb twice the transient energy compared to 1500W-rated parts. Selection depends on circuit transient severity and energy requirements.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Packaging availability varies by manufacturer. SMCJ7.5CA-TP, SMCJ7.5CA-13-F, and SMLJ7.5CA are specified with Tape & Reel (TR) packaging. 3SMC7.5CA TR13 PBFREE is available in Cut Tape (CT). SMCJ7.5CA and SMDJ7.5CA packaging specifications are not detailed in available data. Confirm packaging requirements with supplier documentation.

Q: Do all substitutes maintain the same operating temperature range?

A: No. SMCJ7.5CE3/TR13 operates -65°C to 150°C. SMCJ7.5CA-TP extends to -55°C to 175°C. SMCJ7.5CA, SMCJ7.5CA-13-F, SMDJ7.5CA, and SMLJ7.5CA operate -55°C to 150°C. 3SMC7.5CA TR13 PBFREE matches the original -65°C to 150°C range. Select based on application temperature requirements.

Q: What does "12.9V clamping voltage" mean compared to "14.3V"?

A: Clamping voltage is the maximum voltage appearing across the TVS diode during peak pulse current. Lower clamping voltage (12.9V) provides better protection by limiting voltage rise to a lower level. This represents improved performance for the protected circuit.

Q: Are all parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant. SMLJ7.5CA carries REACH Affected status; all others are REACH Unaffected. Verify REACH compliance requirements for your specific application and region.

Q: Can I use a higher current-rated part (232.6A) in place of the original (104.9A)?

A: Yes. Higher peak pulse current capability provides additional transient suppression margin without affecting circuit operation. The 7.5V standoff voltage remains constant, ensuring proper circuit protection threshold.

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