SMBJ8.0CA-13 Equivalent & Substitute Parts

Part Overview

The SMBJ8.0CA-13 is a bidirectional Zener transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated in the DO-214AA (SMB) surface mount package. This component is designed for general-purpose transient voltage suppression applications with an 8V reverse standoff voltage and 13.6V maximum clamping voltage. The part is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Reverse Standoff Voltage (Typ)	8V
Breakdown Voltage (Min)	8.89V
Clamping Voltage (Max) @ Ipp	13.6V
Peak Pulse Current (10/1000µs)	44.1A
Peak Pulse Power	600W
Operating Temperature Range	-55°C ~ 150°C (TJ)
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
Type	Zener
Bidirectional Channels	1

Substitute Part Grouping Explanation

Substitute parts for the SMBJ8.0CA-13 are qualified based on the following electrical and mechanical parameters:

Reverse standoff voltage: 8V (typical)
Breakdown voltage minimum: 8.89V
Clamping voltage maximum: 13.6V at peak pulse current
Peak pulse current: 44.1A to 44.2A (10/1000µs)
Peak pulse power: 600W
Package: DO-214AA / SMB surface mount
Bidirectional Zener type with single channel
Operating temperature range: minimum -55°C to -50°C, maximum 150°C or higher
RoHS3 compliance and REACH unaffected status

All listed substitutes maintain these core electrical specifications and package compatibility, ensuring functional equivalence in general-purpose transient voltage suppression applications.

Parameter Comparison

Part Number	Manufacturer	Reverse Standoff (V)	Breakdown Min (V)	Clamping Max (V)	Peak Pulse Current (A)	Peak Pulse Power (W)	Temp Range (°C)	Package	Product Status	RoHS Status
SMBJ8.0CA-13	Diodes Incorporated	8	8.89	13.6	44.1	600	-55 ~ 150	DO-214AA, SMB	Discontinued	RoHS Non-compliant
SMBJ8.0CA-13-F	Diodes Incorporated	8	8.89	13.6	44.1	600	-55 ~ 150	DO-214AA, SMB	Active	RoHS3 Compliant
SMBJ8.0CA-E3/52	Vishay General Semiconductor - Diodes Division	8	8.89	13.6	44.1	600	-55 ~ 150	DO-214AA, SMB	Active	RoHS3 Compliant
SMBJ8.0CA-TP	Micro Commercial Co	8	8.89	13.6	44.1	600	-55 ~ 175	DO-214AA, SMB	Active	RoHS3 Compliant
SMBJ8V0CA	Taiwan Semiconductor Corporation	8	8.89	13.6	44.1	600	-55 ~ 150	DO-214AA, SMB	Active	RoHS3 Compliant
SMBJ8.0CA	MDD	8	8.89	13.6	44.2	600	-50 ~ 150	DO-214AA, SMB	Active	RoHS3 Compliant

Engineering Selection Recommendations

For applications requiring the SMBJ8.0CA-13, the following selection criteria apply:

Primary Recommendation: SMBJ8.0CA-13-F (Diodes Incorporated) is the direct successor to the discontinued SMBJ8.0CA-13, maintaining identical electrical specifications while achieving RoHS3 compliance. This part is actively manufactured and widely available.

Alternative Options: SMBJ8.0CA-E3/52 (Vishay) and SMBJ8V0CA (Taiwan Semiconductor Corporation) provide equivalent electrical performance with active product status and RoHS3 compliance. Both are suitable for general-purpose transient voltage suppression.

Extended Temperature Range: SMBJ8.0CA-TP (Micro Commercial Co) extends the maximum operating temperature to 175°C, providing additional thermal margin for high-temperature environments while maintaining all other electrical parameters.

Manufacturer Alternative: SMBJ8.0CA (MDD) offers marginally higher peak pulse current (44.2A vs. 44.1A) with a reduced minimum operating temperature of -50°C. This part is suitable for applications not requiring the full -55°C lower temperature limit.

All substitute parts maintain RoHS3 compliance and REACH unaffected status, supporting modern regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can SMBJ8.0CA-13-F be used as a direct replacement for SMBJ8.0CA-13?

A: Yes. SMBJ8.0CA-13-F is electrically and mechanically identical to SMBJ8.0CA-13, with the primary difference being RoHS3 compliance and active product status. The part is pin-compatible and suitable for direct substitution in existing designs.

Q: What is the difference between SMBJ8.0CA-13 and SMBJ8.0CA?

A: The SMBJ8.0CA (MDD) has a marginally higher peak pulse current specification (44.2A vs. 44.1A) and a reduced minimum operating temperature (-50°C vs. -55°C). For applications operating above -50°C, this part is functionally equivalent.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts use the DO-214AA (SMB) surface mount package, ensuring mechanical and footprint compatibility with the original SMBJ8.0CA-13.

Q: Which substitute part has the widest operating temperature range?

A: SMBJ8.0CA-TP (Micro Commercial Co) supports -55°C to 175°C, providing the widest temperature range. The original SMBJ8.0CA-13 and most alternatives support -55°C to 150°C.

Q: Are all substitute parts RoHS compliant?

A: The original SMBJ8.0CA-13 is RoHS non-compliant. All listed substitute parts are RoHS3 compliant, meeting current regulatory requirements for new designs and procurement.

Q: What is the significance of the part number suffix (e.g., -13-F, -E3/52, -TP)?

A: These suffixes indicate packaging configuration, manufacturer variant, or compliance designation. The electrical specifications remain consistent across all variants listed. Consult the specific manufacturer datasheet for packaging details.

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