P4SMA13C Equivalent & Substitute Parts

Part Overview

The P4SMA13C is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This part operates with an 11.1V reverse standoff voltage and provides 19.11V clamping at peak pulse current. The P4SMA13C is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain compatibility across reverse standoff voltage, clamping voltage, peak pulse current, and package specifications to ensure functional equivalence in circuit protection applications.

Substiute Parts

P4SMA13C

Littelfuse Inc.In Stock: 702P4SMA13C Datasheet

Current PartRFQ

P4SMA13CA

Eaton - Electronics DivisionIn Stock: 23919P4SMA13CA Datasheet

MFR RecommendedRFQ

P4SMA13CA

Eaton - Electronics DivisionIn Stock: 23919P4SMA13CA Datasheet

MFR RecommendedRFQ

SMAJ11CA

MDDIn Stock: 50348SMAJ11CA Datasheet

MFR RecommendedRFQ

SMAJ11CAE3/TR13

Microchip TechnologyIn Stock: 1155SMAJ11CAE3/TR13 Datasheet

MFR RecommendedRFQ

SMAJP4KE13CA-TP

Micro Commercial CoIn Stock: 983SMAJP4KE13CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P4SMA13C are qualified based on the following electrical and mechanical parameters:

• Reverse Standoff Voltage (Typ): 11.0V to 11.1V
• Clamping Voltage (Max) @ Ipp: 18.2V to 19.11V
• Peak Pulse Current (10/1000µs): 22.0A to 27.4A
• Power - Peak Pulse: 400W to 500W
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Bidirectional Channels: 1

All substitute parts maintain the same package footprint and mounting technology, ensuring direct board-level compatibility. Variations in clamping voltage within the specified range and peak pulse current above the minimum threshold are acceptable for functional substitution in general-purpose transient voltage suppression applications.

Parameter Comparison

Engineering Selection Recommendations

P4SMA13CA (Eaton - Electronics Division) is the manufacturer-recommended substitute. This part maintains identical reverse standoff voltage (11.1V), peak pulse current (22.5A), and power rating (400W) as the P4SMA13C. The clamping voltage is reduced to 18.2V, which provides improved transient suppression performance. P4SMA13CA is in active production status with RoHS compliance and extensive inventory availability (23,850 pcs), making it the primary choice for direct replacement in new designs and production continuity.

SMAJ11CAE3/TR13 (Microchip Technology) offers enhanced performance with 27.4A peak pulse current and 500W power rating, providing additional margin for high-energy transient events. This part maintains the same reverse standoff voltage (11.0V) and clamping voltage (18.2V) as other substitutes. Operating temperature range matches the original part (-65°C ~ 150°C), and ROHS3 compliance is confirmed. This option is suitable for applications requiring higher transient energy absorption capacity.

SMAJ11CA (MDD) and SMAJP4KE13CA-TP (Micro Commercial Co) are functionally equivalent alternatives with active product status. Both maintain the 11.0V to 11.1V reverse standoff voltage and 18.2V clamping voltage specifications. SMAJ11CA provides standard performance with 22.0A peak pulse current, while SMAJP4KE13CA-TP extends the upper operating temperature to 175°C, suitable for high-temperature applications.

All substitute parts are surface-mount DO-214AC (SMA) package devices with single bidirectional channels, ensuring direct board-level compatibility with the P4SMA13C footprint.

Frequently Asked Questions (FAQ)

Q: Can P4SMA13CA be used as a direct replacement for P4SMA13C?

A: Yes. P4SMA13CA maintains the same reverse standoff voltage (11.1V), peak pulse current (22.5A), power rating (400W), and DO-214AC SMA package as the P4SMA13C. The clamping voltage is reduced from 19.11V to 18.2V, which improves transient suppression performance. No circuit modifications are required.

Q: What is the difference between the clamping voltage specifications?

A: The P4SMA13C specifies a maximum clamping voltage of 19.11V at peak pulse current. Substitute parts specify 18.2V clamping voltage, which represents tighter voltage regulation during transient suppression. Lower clamping voltage provides better protection for sensitive downstream components. This difference is within acceptable substitution parameters for general-purpose TVS applications.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts use the DO-214AC (SMA) surface-mount package, ensuring identical PCB footprint and mounting compatibility with the P4SMA13C.

Q: Which substitute part should be selected for high-temperature applications?

A: SMAJP4KE13CA-TP supports operating temperatures up to 175°C, compared to 150°C for most other options. This part is recommended for applications requiring extended high-temperature operation.

Q: What is the significance of product status (Active vs. Obsolete)?

A: The P4SMA13C is obsolete, meaning Littelfuse Inc. no longer manufactures this part. All listed substitute parts are in active production status, ensuring long-term availability and supply chain continuity for new designs and ongoing production requirements.

Q: Are all substitute parts RoHS compliant?

A: P4SMA13CA, SMAJ11CA, and SMAJ11CAE3/TR13 are confirmed RoHS or ROHS3 compliant. SMAJP4KE13CA-TP RoHS status is not specified in the provided data. Verify RoHS compliance requirements with the manufacturer or supplier for specific applications.