SMBJ6.5CD-M3/H Equivalent & Substitute Parts

Part Overview

The SMBJ6.5CD-M3/H is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the DO-214AA (SMB) package and provides transient overvoltage protection for general-purpose applications. The part is active and in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when electrical parameters and mechanical compatibility align within specified tolerances, enabling direct replacement in circuit designs without functional degradation.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	6.5	V
Voltage - Breakdown (Min)	7.33	V
Voltage - Clamping (Max) @ Ipp	11	V
Current - Peak Pulse (10/1000µs)	54.5	A
Power - Peak Pulse	600	W
Operating Temperature Range	-55 to 150	°C (TJ)
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SMBJ6.5CD-M3/H are qualified based on the following electrical and mechanical criteria:

Reverse standoff voltage: 6.5V (nominal)
Breakdown voltage minimum: 7.2V to 7.33V range
Clamping voltage maximum @ Ipp: 11V to 11.2V range
Peak pulse current: 53.6A to 56A range
Peak pulse power: 600W
Package: DO-214AA / SMB surface mount
Operating temperature: -55°C to -65°C minimum; 150°C maximum
RoHS3 compliance and MSL 1 rating

All substitute parts maintain the same functional classification (bidirectional Zener TVS diode, single channel) and are suitable for general-purpose transient protection applications. Variations in clamping voltage and peak pulse current within the specified ranges do not affect circuit compatibility when the application design accommodates the stated parameter tolerances.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (V)	Voltage - Breakdown Min (V)	Voltage - Clamping Max @ Ipp (V)	Current - Peak Pulse (A)	Power - Peak Pulse (W)	Operating Temp (°C)	Package	RoHS Status
SMBJ6.5CD-M3/H	Vishay General Semiconductor	6.5	7.33	11	54.5	600	-55 to 150	DO-214AA, SMB	ROHS3
SMBJ6.5CA-E3/52	Vishay General Semiconductor	6.5	7.22	11.2	53.6	600	-55 to 150	DO-214AA, SMB	ROHS3
1SMB6.5CA TR13 PBFREE	Central Semiconductor Corp	6.5	7.22	11.2	53.6	600	-65 to 150	DO-214AA, SMB	ROHS3
SMBJ6.5CA	EVVO Semi	6.5	7.22	11.2	53.6	600	-65 to 150	DO-214AA, SMB	ROHS3
SMBJ6.5CA-13-F	Diodes Incorporated	6.5	7.22	11.2	53.6	600	-55 to 150	DO-214AA, SMB	ROHS3
SMBJ6.5CA-TR	STMicroelectronics	6.5	7.2	11.2	56	600	-55 to 150	DO-214AA, SMB	ROHS3

Engineering Selection Recommendations

All listed substitute parts are active products with ROHS3 compliance and MSL 1 rating, matching the regulatory and environmental requirements of the original SMBJ6.5CD-M3/H. Selection among substitutes should be based on:

Availability and inventory levels at the time of procurement
Preferred supplier relationships and lead time requirements
Operating temperature range requirements: parts from Central Semiconductor Corp and EVVO Semi extend the minimum operating temperature to -65°C, providing additional margin for cold-environment applications
Peak pulse current specification: STMicroelectronics SMBJ6.5CA-TR provides 56A, slightly higher than the original 54.5A specification
Packaging format: all parts use DO-214AA / SMB surface mount configuration compatible with existing PCB layouts

Frequently Asked Questions (FAQ)

Q: Can SMBJ6.5CA-E3/52 directly replace SMBJ6.5CD-M3/H? A: Yes. Both parts share identical reverse standoff voltage (6.5V), operate within the same clamping voltage range (11V to 11.2V), and maintain 600W peak pulse power in DO-214AA / SMB packaging. The breakdown voltage minimum (7.22V vs 7.33V) and peak pulse current (53.6A vs 54.5A) variations are within acceptable substitution tolerances for general-purpose TVS applications.

Q: What is the difference between the Central Semiconductor and EVVO Semi versions? A: Both 1SMB6.5CA TR13 PBFREE and SMBJ6.5CA offer identical electrical specifications (6.5V standoff, 11.2V clamping, 53.6A peak pulse). The Central Semiconductor part extends the minimum operating temperature to -65°C. Packaging differs: Central Semiconductor supplies in Tape & Reel format, while EVVO Semi offers Cut Tape & Digi-Reel® format. Selection depends on procurement format preference and temperature range requirements.

Q: Is the STMicroelectronics SMBJ6.5CA-TR compatible with the original design? A: Yes. The part meets all critical substitution criteria: 6.5V reverse standoff, 11.2V clamping voltage, and 600W peak pulse power in DO-214AA / SMB package. The peak pulse current specification of 56A exceeds the original 54.5A, providing additional transient handling capability without circuit impact.

Q: Do all substitute parts have the same moisture sensitivity rating? A: Yes. All listed substitutes carry MSL 1 (Unlimited) rating, matching the original SMBJ6.5CD-M3/H. No special moisture control or baking procedures are required for storage or handling.

Q: Can I mix different manufacturers in the same production run? A: All substitute parts are ROHS3 compliant and functionally equivalent within specified parameter ranges. Mixed sourcing is permissible from an engineering standpoint; however, procurement and quality assurance procedures should address supplier qualification and traceability requirements specific to your organization.

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