P4SMA85A TR13 Equivalent & Substitute Parts

Part Overview

The P4SMA85A TR13 is a Transient Voltage Suppressor (TVS) diode manufactured by Central Semiconductor Corp, designed for general-purpose overvoltage protection in surface-mount applications. This component features an 85V reverse standoff voltage with a 137V maximum clamping voltage and 2.9A peak pulse current capability in a compact SMA package.

The P4SMA85A TR13 is classified as obsolete. Identifying equivalent and 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

P4SMA85A TR13

Central Semiconductor CorpIn Stock: 1051P4SMA85A TR13 Datasheet

Current PartRFQ

SMAJ85A-13-F

Diodes IncorporatedIn Stock: 12439SMAJ85A-13-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P4SMA85A TR13 is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 85V
• Voltage - Breakdown (Min): 94.4V
• Voltage - Clamping (Max) @ Ipp: 137V
• Current - Peak Pulse (10/1000µs): 2.9A
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC, SMA
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Mounting Type: Surface Mount
• Type: Zener, Unidirectional

The SMAJ85A-13-F manufactured by Diodes Incorporated meets all specified electrical and mechanical parameters and qualifies as a direct substitute. This part maintains identical voltage ratings, current handling, thermal characteristics, and package specifications required for functional equivalence in the application.

Parameter Comparison

Engineering Selection Recommendations

The SMAJ85A-13-F is the recommended substitute for the obsolete P4SMA85A TR13. This selection is based on:

• Complete electrical parameter equivalence across all voltage, current, and power specifications
• Identical mechanical and thermal characteristics
• Active product status with established supply chain availability (12,332 pcs in stock versus 988 pcs for the original part)
• RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements
• Identical packaging and mounting specifications ensuring direct PCB compatibility without design modification

No design changes, layout adjustments, or thermal management modifications are required when implementing this substitute.

Frequently Asked Questions (FAQ)

Q: Can the SMAJ85A-13-F be used as a direct replacement for the P4SMA85A TR13 without PCB modifications?

A: Yes. Both components share identical package specifications (DO-214AC, SMA), mounting type (surface mount), and pin configuration. No PCB layout changes are necessary.

Q: Are the electrical characteristics identical between these parts?

A: Yes. The reverse standoff voltage (85V), breakdown voltage (94.4V minimum), clamping voltage (137V maximum), peak pulse current (2.9A), and peak pulse power (400W) are identical across both components.

Q: What is the primary advantage of selecting the SMAJ85A-13-F?

A: The SMAJ85A-13-F is an active product with significantly higher inventory availability and meets current RoHS3 compliance requirements, whereas the P4SMA85A TR13 is obsolete.

Q: Are there any thermal or operating temperature differences?

A: No. Both components operate across the identical temperature range of -55°C to 150°C (junction temperature).

Q: Does the SMAJ85A-13-F require different handling or storage procedures?

A: No. Both components share identical Moisture Sensitivity Level (MSL) classification of 1 (Unlimited), requiring no special moisture control measures during storage or handling.