SMBJ75CA-13 Equivalent & Substitute Parts

Part Overview

The SMBJ75CA-13 is a transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in surface mount applications. This part operates with a 75V reverse standoff voltage and 121V maximum clamping voltage, delivering 4.9A peak pulse current in a compact SMB (DO-214AA) package. The SMBJ75CA-13 is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for new designs and production continuity.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	75	V
Voltage - Breakdown (Min)	83.3	V
Voltage - Clamping (Max) @ Ipp	121	V
Current - Peak Pulse (10/1000µs)	4.9	A
Power - Peak Pulse	600	W
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature Range	-55°C ~ 150°C	TJ
Bidirectional Channels	1	—
Type	Zener	—

Substitute Part Grouping Explanation

Substitution of the SMBJ75CA-13 is determined by strict equivalence across the following electrical and mechanical parameters:

Voltage - Reverse Standoff: 75V (nominal)
Voltage - Breakdown: 83.3V (minimum)
Voltage - Clamping: 121V (maximum at Ipp)
Current - Peak Pulse: 4.9A minimum (10/1000µs waveform)
Power - Peak Pulse: 600W
Package: DO-214AA / SMB form factor
Mounting: Surface mount configuration
Bidirectional channels: 1
Type: Zener TVS diode

Parts meeting these criteria across all parameters are classified as direct electrical and mechanical equivalents. Variations in peak pulse current above 4.9A, operating temperature range extensions, or packaging format (Tape & Reel vs. bulk) do not disqualify substitution when core voltage and power ratings remain identical.

Parameter Comparison

Part Number	Manufacturer	Vr Standoff (V)	Vbr Min (V)	Vc Max @ Ipp (V)	Ipp (A)	Power (W)	Package	Temp Range (°C)	Status
SMBJ75CA-13	Diodes Incorporated	75	83.3	121	4.9	600	DO-214AA, SMB	-55 ~ 150	Discontinued
SMBJ75CA-13-F	Diodes Incorporated	75	83.3	121	4.9	600	DO-214AA, SMB	-55 ~ 150	Active
SMBJ75CA	MDD	75	83.3	121	5.3	600	DO-214AA, SMB	-50 ~ 150	Active
SMBJ75CA-TP	Micro Commercial Co	75	83.3	121	4.9	600	DO-214AA, SMB	-55 ~ 175	Active
TV06B750JB-G	Comchip Technology	75	83.3	121	4.96	600	DO-214AA, SMB	Not specified	Active
SMBJ75CA-HR	Littelfuse Inc.	75	83.3	121	5	600	DO-214AA, SMB	-65 ~ 150	Active
SMBJ75CA-HRA	Littelfuse	75	83.3	121	5	600	DO-214AA, SMB	-65 ~ 150	Active
SMBJ75CA-M3/52	Vishay General Semiconductor - Diodes Division	75	83.3	121	5	600	DO-214AA, SMB	-55 ~ 150	Active
SMBJ75CA-M3/5B	Vishay General Semiconductor - Diodes Division	75	83.3	121	5	600	DO-214AA, SMB	-55 ~ 150	Active

Engineering Selection Recommendations

All listed substitute parts maintain identical core electrical specifications (75V standoff, 121V clamping, 600W peak power) and mechanical compatibility (DO-214AA / SMB package, surface mount). Selection among active alternatives should prioritize product status and compliance certifications:

Primary Recommendation: SMBJ75CA-13-F (Diodes Incorporated) — Direct manufacturer equivalent with identical electrical parameters, active product status, and RoHS3 compliance. Packaging in Tape & Reel format supports automated assembly.

Secondary Alternatives: SMBJ75CA-TP (Micro Commercial Co) and SMBJ75CA-M3/52 or SMBJ75CA-M3/5B (Vishay) provide equivalent performance with extended or matched operating temperature ranges and active status. All are RoHS3 compliant.

Extended Temperature Option: SMBJ75CA-HR and SMBJ75CA-HRA (Littelfuse) extend the lower operating temperature to -65°C, suitable for applications requiring enhanced cold-temperature performance.

Higher Peak Current Tolerance: SMBJ75CA (MDD) delivers 5.3A peak pulse current, exceeding the original 4.9A specification while maintaining all voltage parameters. This part accommodates designs with margin for transient current variations.

All substitute parts carry RoHS3 compliance and REACH unaffected status, matching the regulatory profile of the original component.

Frequently Asked Questions (FAQ)

Q: Can SMBJ75CA-13-F directly replace SMBJ75CA-13 in existing designs?

A: Yes. SMBJ75CA-13-F is manufactured by Diodes Incorporated and maintains identical electrical specifications (75V standoff, 121V clamping, 4.9A peak pulse) and DO-214AA SMB packaging. The primary difference is active product status and Tape & Reel packaging format, which does not affect electrical performance or PCB assembly compatibility.

Q: What is the significance of peak pulse current variation (4.9A vs. 5.0A vs. 5.3A) among substitutes?

A: All listed substitutes meet or exceed the original 4.9A specification. Higher peak pulse current ratings (5.0A, 5.3A) indicate enhanced transient handling capability without compromising voltage regulation. These parts remain fully compatible with circuits designed for 4.9A operation.

Q: Are there temperature range differences that affect substitution?

A: Operating temperature ranges vary among substitutes. SMBJ75CA-13 operates -55°C to 150°C. SMBJ75CA-TP extends to 175°C; Littelfuse variants extend to -65°C. These differences do not prevent substitution unless the application requires operation outside the original -55°C to 150°C window. Verify application requirements before selecting extended-range alternatives.

Q: Does packaging format (Tape & Reel vs. bulk) affect electrical compatibility?

A: No. Tape & Reel packaging is a logistics and assembly format only. All listed parts use identical DO-214AA SMB package geometry and electrical footprint. Packaging format does not affect circuit performance or PCB compatibility.

Q: Why are some parts listed as "MFR Recommended"?

A: MFR Recommended designations indicate manufacturer-endorsed alternatives that meet or exceed original specifications. These parts carry full manufacturer support and compliance certifications, making them suitable for production use.

Q: Can SMBJ75CA (MDD) with 5.3A peak pulse replace SMBJ75CA-13 in all applications?

A: Yes. The 5.3A rating exceeds the original 4.9A specification while maintaining identical voltage parameters (75V standoff, 121V clamping). This part provides additional transient current margin and is fully compatible with circuits designed for the original component.

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