1SMA60CAT3 Equivalent & Substitute Parts

Part Overview

The 1SMA60CAT3 is a transient voltage suppressor (TVS) diode manufactured by onsemi, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 60V reverse standoff voltage with a 96.8V maximum clamping voltage and 4.1A peak pulse current capability in a DO-214AC (SMA) package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	60	V
Voltage - Breakdown (Min)	66.7	V
Voltage - Clamping (Max) @ Ipp	96.8	V
Current - Peak Pulse (10/1000µs)	4.1	A
Power - Peak Pulse	400	W
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature	-65°C ~ 150°C	TJ
Type	Zener	—
Bidirectional Channels	1	—

Substitute Part Grouping Explanation

Substitute parts for the 1SMA60CAT3 are qualified based on the following critical electrical and mechanical parameters:

Voltage - Reverse Standoff (Typ): 60V
Voltage - Breakdown (Min): 66.7V
Voltage - Clamping (Max) @ Ipp: 96.8V
Current - Peak Pulse (10/1000µs): 4.1A minimum
Power - Peak Pulse: 400W minimum
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
Bidirectional Channels: 1
Type: Zener

All identified substitute parts maintain these core electrical specifications and package compatibility. Variations in peak pulse current (up to 5.2A) and power dissipation (up to 500W) represent enhanced performance margins and are acceptable for direct substitution. Operating temperature ranges may vary within the specified limits without affecting functional equivalence for this application category.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (V)	Voltage - Breakdown (V)	Voltage - Clamping (V)	Current - Peak Pulse (A)	Power - Peak Pulse (W)	Operating Temperature (°C)	Product Status	RoHS Status
1SMA60CAT3	onsemi	60	66.7	96.8	4.1	400	-65 ~ 150 (TJ)	Obsolete	Non-compliant
SMAJ60CA	MDD	60	66.7	96.8	4.1	400	-50 ~ 150 (TJ)	Active	ROHS3 Compliant
SMAJ60CA-13-F	Diodes Incorporated	60	66.7	96.8	4.1	400	-55 ~ 150 (TJ)	Active	ROHS3 Compliant
SMAJ60CA-TP	Micro Commercial Co	60	66.7	96.8	4.1	400	-55 ~ 175 (TA)	Active	ROHS3 Compliant
SMAJ60CAE3/TR13	Microchip Technology	60	66.7	96.8	5.2	500	-65 ~ 150 (TJ)	Active	ROHS3 Compliant
TV04A600JB-G	Comchip Technology	60	66.7	96.8	4.13	400	-55 ~ 150 (TJ)	Active	ROHS3 Compliant
TV04A600JB-HF	Comchip Technology	60	66.7	96.8	4.13	400	-55 ~ 150 (TJ)	Active	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts listed maintain electrical equivalence to the 1SMA60CAT3 and are suitable for direct replacement in applications requiring 60V TVS diode protection with DO-214AC (SMA) packaging.

Product Status Consideration: The original 1SMA60CAT3 is obsolete. All substitute parts are in active production status, ensuring long-term availability and supply chain stability.

Compliance Status: The 1SMA60CAT3 is RoHS non-compliant. All substitute parts are ROHS3 compliant, meeting current regulatory requirements for electronic component manufacturing and assembly.

Performance Margin: SMAJ60CAE3/TR13 offers enhanced specifications with 5.2A peak pulse current and 500W power dissipation, compared to the 4.1A and 400W baseline. This represents a performance margin suitable for applications requiring additional transient protection headroom.

Temperature Range: SMAJ60CA-TP supports extended operating temperature to 175°C (TA), providing thermal margin for high-temperature environments. Other substitutes maintain the original -65°C to 150°C range or comparable limits.

Frequently Asked Questions (FAQ)

Q: Can I use SMAJ60CAE3/TR13 as a direct replacement for 1SMA60CAT3?

A: Yes. SMAJ60CAE3/TR13 maintains all critical electrical parameters (60V standoff, 96.8V clamping, 66.7V breakdown) and package compatibility. The higher peak pulse current (5.2A vs. 4.1A) and power dissipation (500W vs. 400W) represent enhanced performance margins and do not affect functional equivalence.

Q: What is the difference between SMAJ60CA from MDD and SMAJ60CA-13-F from Diodes Incorporated?

A: Both parts are electrically identical with 60V standoff, 96.8V clamping, and 4.1A peak pulse current. The primary difference is the operating temperature range: MDD variant operates -50°C to 150°C, while Diodes Incorporated variant operates -55°C to 150°C. Both are ROHS3 compliant and in active production.

Q: Are TV04A600JB-G and TV04A600JB-HF interchangeable?

A: Yes. Both Comchip Technology parts are electrically identical with 60V standoff, 96.8V clamping, and 4.13A peak pulse current in DO-214AC (SMA) packaging. The designation difference reflects packaging or tape configuration variants. Both are ROHS3 compliant and suitable for direct substitution.

Q: Does the obsolete status of 1SMA60CAT3 affect circuit performance?

A: No. Obsolescence indicates end-of-life production status only. The electrical performance and functional characteristics remain valid. Substitution is recommended to ensure ongoing supply availability and compliance with current RoHS regulations.

Q: Can I substitute 1SMA60CAT3 with a different voltage rating TVS diode?

A: No. The 60V reverse standoff voltage and 96.8V clamping voltage are application-specific protection parameters. Substitution is limited to parts maintaining these exact specifications to ensure proper overvoltage suppression without affecting circuit operation.

Q: What packaging options are available for these substitute parts?

A: All substitute parts use DO-214AC (SMA) surface-mount packaging, identical to the original 1SMA60CAT3. Packaging variants such as Cut Tape (CT), Digi-Reel, or Tape & Reel (TR) represent different distribution formats and do not affect electrical or mechanical compatibility.

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