SA5.0-E3/73 Equivalent & Substitute Parts

Part Overview

The SA5.0-E3/73 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, part of the TransZorb® series. This through-hole component is designed for general-purpose transient voltage protection applications with a 5V reverse standoff voltage and 9.6V maximum clamping voltage. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and production requirements.

Substiute Parts

SA5.0-E3/73

Vishay General Semiconductor - Diodes DivisionIn Stock: 1125SA5.0-E3/73 Datasheet

Current PartRFQ

SA5.0A-E3/73

Vishay General Semiconductor - Diodes DivisionIn Stock: 32412SA5.0A-E3/73 Datasheet

DirectRFQ

P5KE5.0A-AP

Micro Commercial CoIn Stock: 866P5KE5.0A-AP Datasheet

MFR RecommendedRFQ

P5KE5.0A-BP

Micro Commercial CoIn Stock: 1171P5KE5.0A-BP Datasheet

MFR RecommendedRFQ

P5KE5.0A-TP

Micro Commercial CoIn Stock: 1212P5KE5.0A-TP Datasheet

MFR RecommendedRFQ

SA5.0A

Taiwan Semiconductor CorporationIn Stock: 300189SA5.0A Datasheet

MFR RecommendedRFQ

SA5.0A-B

Littelfuse Inc.In Stock: 4239SA5.0A-B Datasheet

MFR RecommendedRFQ

SA5.0A-TP

Micro Commercial CoIn Stock: 7340SA5.0A-TP Datasheet

MFR RecommendedRFQ

SAC5.0

Littelfuse Inc.In Stock: 17301SAC5.0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SA5.0-E3/73 is determined by the following critical parameters:

• Voltage Rating: Reverse standoff voltage of 5V and breakdown voltage minimum of 6.4V
• Clamping Voltage: Maximum clamping voltage at peak pulse current (Ipp)
• Peak Pulse Current: Capability to handle 52.1A or greater at 10/1000µs pulse
• Power Dissipation: 500W peak pulse power rating
• Package Compatibility: DO-204AC (DO-15) axial through-hole configuration
• Temperature Range: Operating temperature capability from -55°C to 175°C
• Unidirectional Configuration: Single channel Zener-type TVS diode

Substitute parts must maintain electrical equivalence within these parameters while meeting the same functional requirements for transient voltage suppression in general-purpose applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Electrical Equivalence)

SA5.0A-E3/73, SA5.0A, SA5.0A-B, and SA5.0A-TP are direct electrical equivalents to the SA5.0-E3/73. These parts maintain the 5V reverse standoff voltage, 6.4V minimum breakdown voltage, and 500W peak pulse power rating. All are active products with ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance for new designs and production.

Alternative Substitutes (Functional Compatibility)

P5KE5.0A-AP, P5KE5.0A-BP, and P5KE5.0A-TP from Micro Commercial Co provide functional equivalence with identical voltage ratings and peak pulse current capabilities. These parts extend the operating temperature range to -65°C, offering enhanced low-temperature performance. All three variants are active products with REACH unaffected status.

Limited Compatibility Substitute

SAC5.0 from Littelfuse Inc. maintains the 5V reverse standoff voltage and 500W power rating but features a higher breakdown voltage minimum (7.6V) and maximum clamping voltage (10V), with reduced peak pulse current (44A). This part is suitable only for applications where the higher clamping voltage is acceptable and peak pulse current requirements do not exceed 44A.

Frequently Asked Questions (FAQ)

Q: Can SA5.0A-E3/73 directly replace SA5.0-E3/73?

A: Yes. SA5.0A-E3/73 is a direct substitute with identical voltage ratings (5V standoff, 6.4V breakdown minimum) and power dissipation (500W). The clamping voltage is slightly lower (9.2V vs. 9.6V), and peak pulse current is higher (54.3A vs. 52.1A), making it functionally equivalent and suitable for the same applications.

Q: What is the difference between Micro Commercial Co P5KE5.0A variants (AP, BP, TP)?

A: The P5KE5.0A-AP, P5KE5.0A-BP, and P5KE5.0A-TP variants are electrically identical with the same voltage ratings and peak pulse current (54.3A). The suffix designates packaging and tape configuration. All three are active products with identical electrical performance and temperature range (-65°C ~ 175°C).

Q: Is SAC5.0 a suitable replacement for SA5.0-E3/73?

A: SAC5.0 is functionally compatible only in applications where the higher clamping voltage (10V vs. 9.6V) and reduced peak pulse current (44A vs. 52.1A) are acceptable. The 5V reverse standoff voltage and 500W power rating match the original part. Verify application requirements before substitution.

Q: Are all substitute parts RoHS compliant?

A: SA5.0A-E3/73, SA5.0A, SA5.0A-B, SA5.0A-TP, and SAC5.0 are ROHS3 compliant. P5KE5.0A variants (AP, BP, TP) do not list RoHS status in the provided specifications. Verify RoHS compliance requirements with the manufacturer if regulatory compliance is mandatory.

Q: What is the temperature range difference between substitutes?

A: Most substitutes operate from -55°C to 175°C. Micro Commercial Co P5KE5.0A variants extend the lower temperature limit to -65°C, providing enhanced performance in cold environments. SA5.0A-TP specifies TA (ambient temperature) rather than TJ (junction temperature) for the upper limit.

Q: Can I use these parts interchangeably in existing PCB designs?

A: Yes, all substitute parts use the same DO-204AC (DO-15) axial through-hole package and pinout. Direct PCB substitution is possible without layout modifications. Verify that the electrical parameters (clamping voltage, peak pulse current) meet your specific application requirements before implementation.