SA8.5C-E3/54 Equivalent & Substitute Parts

Part Overview

The SA8.5C-E3/54 is a TransZorb® Zener-type Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This through-hole component is designed for general-purpose transient voltage suppression applications with an 8.5V reverse standoff voltage and 15.9V maximum clamping voltage. The part is currently listed as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

SA8.5C-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 910SA8.5C-E3/54 Datasheet

Current PartRFQ

SA8.5CA-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 999SA8.5CA-E3/54 Datasheet

DirectRFQ

P6KE10CA-TP

Micro Commercial CoIn Stock: 12251P6KE10CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SA8.5C-E3/54 are qualified based on the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 8.5V ± tolerance
• Voltage - Breakdown (Min): within acceptable range (9.44V minimum)
• Voltage - Clamping (Max) @ Ipp: within acceptable range (14.4V to 15.9V)
• Current - Peak Pulse (10/1000µs): equal to or greater than 31.4A
• Power - Peak Pulse: equal to or greater than 500W
• Operating Temperature Range: -55°C ~ 175°C (TJ)
• Mounting Type: Through Hole
• Package / Case: DO-204AC or DO-15 compatible
• Type: Zener-type TVS diode
• Bidirectional Channels: 1

The following parts meet these substitution criteria:

Direct Manufacturer Equivalent: SA8.5CA-E3/54 (Vishay General Semiconductor - Diodes Division) - Active product status with identical electrical specifications and packaging.

Cross-Manufacturer Substitute: P6KE10CA-TP (Micro Commercial Co) - Meets all critical electrical parameters with enhanced current and power ratings.

Parameter Comparison

Engineering Selection Recommendations

SA8.5CA-E3/54 (Direct Manufacturer Equivalent): This is the primary substitute for the obsolete SA8.5C-E3/54. It is manufactured by the same supplier (Vishay General Semiconductor - Diodes Division), maintains identical electrical specifications, and carries active product status. Both parts are ROHS3 compliant and share the same operating temperature range. The SA8.5CA-E3/54 is available in Tape & Reel packaging, providing improved supply chain continuity compared to the obsolete bulk-packaged original.

P6KE10CA-TP (Cross-Manufacturer Substitute): This Micro Commercial Co part provides an alternative when Vishay equivalents are unavailable. It meets all critical electrical parameters with enhanced current capacity (41A versus 31.4A) and increased power dissipation (600W versus 500W). The reverse standoff voltage (8.55V) and clamping voltage (14.5V) are within acceptable operating ranges. This part is ROHS3 compliant and actively manufactured. The P6KE10CA-TP is supplied in Cut Tape format and is compatible with DO-15 axial through-hole mounting.

Frequently Asked Questions (FAQ)

Q: Can SA8.5CA-E3/54 be used as a direct replacement for SA8.5C-E3/54?

A: Yes. The SA8.5CA-E3/54 is a direct equivalent with identical electrical specifications, operating temperature range, and through-hole packaging. The primary difference is product status (active versus obsolete) and packaging format (Tape & Reel versus bulk).

Q: What are the key differences between SA8.5CA-E3/54 and P6KE10CA-TP?

A: Both parts meet the critical voltage and current requirements of the original SA8.5C-E3/54. The P6KE10CA-TP offers higher peak pulse current (41A versus 34.7A) and greater power dissipation (600W versus 500W). The clamping voltage is slightly lower (14.5V versus 14.4V). Both are ROHS3 compliant and actively manufactured.

Q: Are there any packaging compatibility concerns?

A: All three parts use through-hole axial mounting. SA8.5C-E3/54 and SA8.5CA-E3/54 are both available in DO-204AC (DO-15) packages. P6KE10CA-TP uses DO-15 packaging. All are mechanically compatible with standard through-hole PCB layouts designed for axial diodes.

Q: What is the significance of the clamping voltage difference between the main part and substitutes?

A: The SA8.5C-E3/54 has a maximum clamping voltage of 15.9V, while SA8.5CA-E3/54 and P6KE10CA-TP clamp at 14.4V and 14.5V respectively. These lower clamping voltages provide improved transient suppression performance. All values remain within acceptable operating ranges for general-purpose TVS applications with 8.5V standoff voltage.

Q: Are all parts RoHS compliant?

A: Yes. SA8.5C-E3/54, SA8.5CA-E3/54, and P6KE10CA-TP are all ROHS3 compliant.

Q: What is the operating temperature range for these parts?

A: All three parts operate across the same temperature range: -55°C to 175°C (junction temperature).