P4SMA8.5A TR13 Equivalent & Substitute Parts

Part Overview

The P4SMA8.5A TR13 is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Central Semiconductor Corp, designed for general-purpose overvoltage protection in surface-mount applications. This component features an 8.5V reverse standoff voltage with a 14.4V maximum clamping voltage and 27.7A peak pulse current capability in a compact SMA (DO-214AC) package.

The P4SMA8.5A TR13 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

P4SMA8.5A TR13

Central Semiconductor CorpIn Stock: 766P4SMA8.5A TR13 Datasheet

Current PartRFQ

SMAJ8.5A-13-F

Diodes IncorporatedIn Stock: 28707SMAJ8.5A-13-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P4SMA8.5A TR13 are identified based on electrical and mechanical parameter equivalence. The following criteria determine substitution validity:

• Voltage - Reverse Standoff (Typ): 8.5V
• Voltage - Breakdown (Min): 9.44V
• Voltage - Clamping (Max) @ Ipp: 14.4V
• Current - Peak Pulse (10/1000µs): 27.7A
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Unidirectional Channels: 1
• Type: Zener

The SMAJ8.5A-13-F from Diodes Incorporated meets all specified electrical and mechanical parameters, making it a direct functional equivalent for the obsolete P4SMA8.5A TR13.

Parameter Comparison

Engineering Selection Recommendations

The SMAJ8.5A-13-F is the direct substitute for the P4SMA8.5A TR13. Selection is based on the following factors:

• All electrical parameters match exactly: 8.5V reverse standoff, 9.44V minimum breakdown, 14.4V maximum clamping voltage, and 27.7A peak pulse current.
• Package and mounting specifications are identical (DO-214AC, SMA, surface mount).
• The substitute part is in active production status, ensuring long-term availability and supply chain stability.
• ROHS3 compliance and REACH unaffected status provide regulatory alignment for current manufacturing standards.
• Moisture sensitivity level remains unchanged (MSL 1, Unlimited), maintaining compatibility with standard handling and storage procedures.

Frequently Asked Questions (FAQ)

Q: Can the SMAJ8.5A-13-F be used as a direct replacement for the P4SMA8.5A TR13?

A: Yes. The SMAJ8.5A-13-F meets all electrical and mechanical specifications of the P4SMA8.5A TR13, including voltage ratings, current capacity, package type, and operating temperature range. No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The P4SMA8.5A TR13 is obsolete. The SMAJ8.5A-13-F is an active product from Diodes Incorporated with equivalent specifications and superior supply availability.

Q: Are there any compliance differences between the two parts?

A: The SMAJ8.5A-13-F carries ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. Both parts maintain MSL 1 (Unlimited) moisture sensitivity classification.

Q: Is the package footprint identical?

A: Yes. Both parts use the DO-214AC (SMA) surface-mount package with identical mechanical dimensions and land pattern requirements.

Q: What are the critical electrical parameters for substitution?

A: The critical parameters are reverse standoff voltage (8.5V), breakdown voltage (9.44V minimum), clamping voltage (14.4V maximum), and peak pulse current (27.7A). The SMAJ8.5A-13-F matches all of these specifications.