SA60A Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The SA60A is a unidirectional Zener-type transient voltage suppressor diode in DO-15 axial package configuration, rated for 60V reverse standoff voltage with 96.8V maximum clamping voltage. Manufactured by onsemi, this component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design support and procurement continuity. The SA60A serves general-purpose transient voltage suppression applications requiring through-hole mounting in DO-204AC (DO-15) package format.

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)	5.2	A
Power - Peak Pulse	500	W
Type	Zener	—
Unidirectional Channels	1	—
Mounting Type	Through Hole	—
Package / Case	DO-204AC, DO-15, Axial	—
Applications	General Purpose	—

Substitute Part Grouping Explanation

Substitution of the SA60A is determined by strict equivalence across the following critical parameters:

Direct Electrical Equivalence Requirements:

Voltage - Reverse Standoff (Typ): 60V
Voltage - Breakdown (Min): 66.7V minimum
Voltage - Clamping (Max) @ Ipp: 96.8V
Current - Peak Pulse (10/1000µs): 5.2A minimum
Power - Peak Pulse: 500W minimum
Type: Zener unidirectional

Mechanical Compatibility Requirements:

Mounting Type: Through Hole
Package / Case: DO-204AC (DO-15) or equivalent axial configuration
Supplier Device Package: DO-15 or DO-204AC

Substitute parts are categorized as follows:

Direct Manufacturer Substitutes maintain identical electrical specifications and package format with active product status:

SA60A-AP (Micro Commercial Co)
SA60A-BP (Micro Commercial Co)
SA60A-E3/54 (Vishay General Semiconductor)
SA60AHE3/54 (Vishay General Semiconductor - Automotive qualified)

Similar Electrical Substitutes meet core voltage and current parameters with package or series variations:

P5KE60A-AP, P5KE60A-BP, P5KE60A-TP (Micro Commercial Co - P5KE series)
SA60A (Fairchild Semiconductor - legacy equivalent)
SLD60U-017, SLD60U-017-B (Littelfuse Inc. - higher current rating, different package)

Parameter Comparison

Part Number	Manufacturer	Product Status	Vwm (Typ) V	Vbr (Min) V	Vc (Max) V	Ipp (10/1000µs) A	Ppk W	Package	Operating Temp °C
SA60A	onsemi	Obsolete	60	66.7	96.8	5.2	500	DO-15	—
SA60A-AP	Micro Commercial Co	Active	60	66.7	96.8	5.3	500	DO-15	-55 to 175
SA60A-BP	Micro Commercial Co	Active	60	66.7	96.8	5.3	500	DO-15	-55 to 175
SA60A-E3/54	Vishay	Active	60	66.7	96.8	5.2	500	DO-204AC	-55 to 175
SA60AHE3/54	Vishay	Active	60	66.7	96.8	5.2	500	DO-204AC	-55 to 175
P5KE60A-AP	Micro Commercial Co	Active	60	66.7	96.8	5.2	500	DO-15	-65 to 175
P5KE60A-BP	Micro Commercial Co	Active	60	66.7	96.8	5.2	500	DO-15	-65 to 175
P5KE60A-TP	Micro Commercial Co	Active	60	66.7	96.8	5.2	500	DO-15	-65 to 175
SA60A	Fairchild Semiconductor	Obsolete	60	66.7	96.8	5.3	500	DO-204AC	-55 to 175
SLD60U-017	Littelfuse	Active	60	68.4	96.8	52.7	5000	P600	-55 to 175
SLD60U-017-B	Littelfuse	Active	60	68.4	96.8	52.7	5000	P600	-55 to 175

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical and Package Specifications):

SA60A-AP and SA60A-BP from Micro Commercial Co provide active product status with matching DO-15 package and electrical parameters (5.3A peak pulse current exceeds original 5.2A specification). Both are available in bulk packaging with defined operating temperature range (-55°C to 175°C).

SA60A-E3/54 from Vishay General Semiconductor offers equivalent electrical performance in DO-204AC package with active status and RoHS3 compliance. This variant is supplied in Tape & Reel format.

SA60AHE3/54 from Vishay provides identical electrical specifications with automotive-grade qualification (AEC-Q101) and is suitable for applications requiring automotive-level reliability assurance.

For Applications Requiring Extended Temperature Range:

P5KE60A-AP, P5KE60A-BP, and P5KE60A-TP from Micro Commercial Co maintain electrical equivalence with extended lower operating temperature limit (-65°C versus -55°C), suitable for applications requiring enhanced cold-temperature performance.

For High-Current Transient Suppression:

SLD60U-017 and SLD60U-017-B from Littelfuse Inc. provide significantly higher peak pulse current (52.7A) and power dissipation (5kW) in P600 package format. These components are automotive-qualified (AEC-Q101) and suitable for applications requiring enhanced transient energy absorption. Package change from DO-15 to P600 requires PCB layout modification.

Frequently Asked Questions (FAQ)

Q: Can SA60A-AP or SA60A-BP be used as direct drop-in replacements for the obsolete SA60A?

A: Yes. Both SA60A-AP and SA60A-BP maintain identical reverse standoff voltage (60V), breakdown voltage (66.7V minimum), clamping voltage (96.8V), and DO-15 package configuration. Peak pulse current specification (5.3A) exceeds the original 5.2A requirement. Both are active products with defined operating temperature ranges.

Q: What is the difference between SA60A-E3/54 and SA60AHE3/54?

A: Both parts are manufactured by Vishay with identical electrical specifications and DO-204AC package format. SA60AHE3/54 carries automotive-grade qualification (AEC-Q101) and is designated for automotive applications. SA60A-E3/54 is suitable for general-purpose applications. Both are active products with RoHS3 compliance.

Q: Why do P5KE60A variants have different operating temperature ranges than SA60A-AP?

A: P5KE60A series from Micro Commercial Co specifies -65°C to 175°C operating temperature, extending the lower temperature limit by 10°C compared to SA60A-AP (-55°C to 175°C). This extended range is a design characteristic of the P5KE series and does not affect electrical equivalence at standard operating conditions.

Q: Can SLD60U-017 replace SA60A in existing designs?

A: SLD60U-017 meets voltage specifications (60V standoff, 96.8V clamping) but differs in package format (P600 versus DO-15) and current rating (52.7A versus 5.2A). Package change requires PCB redesign. Use SLD60U-017 only when higher transient current absorption is required and PCB layout can accommodate P600 package.

Q: Are all substitute parts RoHS compliant?

A: SA60A-E3/54 and SA60AHE3/54 from Vishay carry explicit RoHS3 compliance designation. SLD60U-017 and SLD60U-017-B from Littelfuse carry RoHS3 compliance. SA60A-AP and SA60A-BP from Micro Commercial Co do not specify RoHS status in provided data. Verify RoHS compliance requirements with component datasheets for specific applications.

Q: What is the significance of Tape & Reel versus Bulk packaging?

A: Tape & Reel packaging (SA60A-E3/54, SA60AHE3/54, SLD60U-017) is suitable for automated assembly processes. Bulk packaging (SA60A-AP, SA60A-BP, P5KE60A variants, SLD60U-017-B) is suitable for manual assembly or lower-volume applications. Electrical specifications are identical; packaging selection depends on manufacturing process requirements.

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