SMAJ6.0CA-TP Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The SMAJ6.0CA-TP is a bidirectional transient voltage suppressor diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection in surface-mount applications. This component operates with a 6V reverse standoff voltage and provides 10.3V maximum clamping voltage at peak pulse current, delivering 400W peak pulse power dissipation in a DO-214AC (SMA) package. The part is active in production status and fully compliant with RoHS3 and REACH regulations. Equivalent and substitute parts are identified based on matching electrical characteristics, package compatibility, and operational parameters that ensure functional interchangeability in circuit protection applications.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	6	V
Voltage - Breakdown (Min)	6.67	V
Voltage - Clamping (Max) @ Ipp	10.3	V
Current - Peak Pulse (10/1000µs)	38.8	A
Power - Peak Pulse	400	W
Type	Zener	-
Bidirectional Channels	1	-
Package / Case	DO-214AC, SMA	-
Mounting Type	Surface Mount	-
Operating Temperature	-55°C ~ 175°C	TA
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitute parts for the SMAJ6.0CA-TP are classified into two categories based on electrical parameter alignment:

Direct Substitutes maintain identical electrical specifications across all critical parameters: 6V reverse standoff voltage, 6.67V minimum breakdown voltage, 10.3V maximum clamping voltage, and 38.8A peak pulse current. These parts are functionally equivalent and can replace the SMAJ6.0CA-TP without circuit redesign. Direct substitutes include variants from Good-Ark Semiconductor, Diodes Incorporated, Vishay General Semiconductor, and Microchip Technology, differentiated only by packaging format (Tape & Reel or Cut Tape) and minor temperature rating variations.

Similar Substitutes share the same 6V reverse standoff voltage and DO-214AC package but exhibit different clamping voltage and peak pulse current characteristics. These parts are suitable for applications where higher current handling or different clamping performance is acceptable within the circuit design margins. Similar substitutes from STMicroelectronics feature 13.7V clamping voltage with significantly higher peak pulse current ratings (170A to 290A depending on pulse waveform specification).

Substitution eligibility is determined by: (1) matching reverse standoff voltage of 6V, (2) compatible DO-214AC/SMA package format, (3) surface-mount technology compatibility, and (4) compliance with RoHS3 and REACH requirements.

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	Packaging	Product Status
SMAJ6.0CA-TP	Micro Commercial Co	6V	10.3V	38.8A	400W	-55°C ~ 175°C	DO-214AC, SMA	Tape & Reel (TR)	Active
SMAJ6.0CA	Good-Ark Semiconductor	6V	10.3V	38.8A	400W	-55°C ~ 150°C	DO-214AC, SMA	Cut Tape (CT) & Digi-Reel®	Active
SMAJ6.0CA-13-F	Diodes Incorporated	6V	10.3V	38.8A	400W	-55°C ~ 150°C	DO-214AC, SMA	Tape & Reel (TR)	Active
SMAJ6.0CA-E3/5A	Vishay General Semiconductor - Diodes Division	6V	10.3V	38.8A	400W	-55°C ~ 150°C	DO-214AC, SMA	Tape & Reel (TR)	Active
SMAJ6.0CA-E3/61	Vishay General Semiconductor - Diodes Division	6V	10.3V	38.8A	400W	-55°C ~ 150°C	DO-214AC, SMA	Cut Tape (CT) & Digi-Reel®	Active
SMAJ6.0CAE3/TR13	Microchip Technology	6V	10.3V	48.5A	500W	-65°C ~ 150°C	DO-214AC, SMA	Tape & Reel (TR)	Active
SMA6J6.0CA-TR	STMicroelectronics	6V	13.7V	290A (8/20µs)	600W	-55°C ~ 175°C	DO-214AC, SMA	Cut Tape (CT) & Digi-Reel®	Active
SMAJ6.0CA-TR	STMicroelectronics	6V	13.7V	170A (8/20µs)	400W	-55°C ~ 150°C	DO-214AC, SMA	Cut Tape (CT) & Digi-Reel®	Active

Engineering Selection Recommendations

All listed substitute parts maintain active production status and full compliance with RoHS3 and REACH regulations, ensuring regulatory continuity with the SMAJ6.0CA-TP. Selection between direct and similar substitutes depends on circuit protection requirements:

For applications requiring identical electrical performance and maximum compatibility, direct substitutes from Good-Ark Semiconductor (SMAJ6.0CA), Diodes Incorporated (SMAJ6.0CA-13-F), Vishay General Semiconductor (SMAJ6.0CA-E3/5A, SMAJ6.0CA-E3/61), and Microchip Technology (SMAJ6.0CAE3/TR13) are appropriate. The Microchip variant offers extended lower temperature rating (-65°C minimum) and higher peak pulse power (500W), providing enhanced performance margins in demanding thermal environments.

For applications where higher transient current handling is beneficial, STMicroelectronics similar substitutes (SMA6J6.0CA-TR, SMAJ6.0CA-TR) provide increased peak pulse current capacity and clamping voltage, suitable for circuits tolerating higher voltage transients. The SMA6J6.0CA-TR variant matches the SMAJ6.0CA-TP operating temperature range (-55°C ~ 175°C), while SMAJ6.0CA-TR operates to -55°C ~ 150°C.

Packaging format selection (Tape & Reel versus Cut Tape & Digi-Reel) depends on procurement and assembly requirements and does not affect electrical performance.

Frequently Asked Questions (FAQ)

Q: Can SMAJ6.0CA from Good-Ark Semiconductor directly replace SMAJ6.0CA-TP in existing designs?

A: Yes. The Good-Ark SMAJ6.0CA maintains identical electrical specifications (6V standoff, 10.3V clamping, 38.8A peak pulse current, 400W power) and DO-214AC package compatibility. The operating temperature range is -55°C ~ 150°C versus -55°C ~ 175°C for the original part; verify this difference does not exceed circuit thermal requirements.

Q: What is the difference between direct substitutes and similar substitutes?

A: Direct substitutes (Good-Ark, Diodes, Vishay, Microchip variants) match all electrical parameters of the SMAJ6.0CA-TP. Similar substitutes from STMicroelectronics (SMA6J6.0CA-TR, SMAJ6.0CA-TR) maintain the 6V standoff voltage and DO-214AC package but feature 13.7V clamping voltage and significantly higher peak pulse current (170A–290A). Similar substitutes are suitable only if circuit design margins accommodate higher clamping voltage.

Q: Are Tape & Reel and Cut Tape packaging formats electrically equivalent?

A: Yes. Packaging format differences (Tape & Reel versus Cut Tape & Digi-Reel) affect only procurement and assembly logistics. Electrical performance and component specifications remain identical.

Q: Does the Microchip SMAJ6.0CAE3/TR13 offer advantages over the original SMAJ6.0CA-TP?

A: The Microchip variant provides higher peak pulse power (500W versus 400W) and extended lower temperature rating (-65°C minimum versus -55°C minimum), offering enhanced performance margins in high-stress thermal environments. Peak pulse current is also higher (48.5A versus 38.8A). These enhancements are beneficial but not required for standard applications.

Q: Can STMicroelectronics SMAJ6.0CA-TR be used as a drop-in replacement?

A: The STMicroelectronics SMAJ6.0CA-TR shares the 6V standoff voltage and DO-214AC package but exhibits 13.7V clamping voltage (versus 10.3V) and 170A peak pulse current (versus 38.8A). This part is suitable only if the circuit design accommodates higher clamping voltage transients. Verify circuit protection thresholds before substitution.

Q: What compliance certifications apply to all substitute parts?

A: All listed substitute parts are RoHS3 compliant and REACH unaffected, maintaining regulatory equivalence with the SMAJ6.0CA-TP. Moisture sensitivity level is 1 (Unlimited) across all variants.

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