Equivalent & Substitute Parts for P4SMA130

Part Overview

The P4SMA130 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. The device features a 111V reverse standoff voltage with a 187.95V maximum clamping voltage at peak pulse current of 2.3A. The P4SMA130 is classified as obsolete, making identification of active equivalent and substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

P4SMA130

Littelfuse Inc.In Stock: 1044P4SMA130 Datasheet

Current PartRFQ

P4SMA130A

Eaton - Electronics DivisionIn Stock: 22459P4SMA130A Datasheet

DirectRFQ

P4SMA130A

Eaton - Electronics DivisionIn Stock: 22459P4SMA130A Datasheet

DirectRFQ

SMAJ100E3/TR13

Microchip TechnologyIn Stock: 879SMAJ100E3/TR13 Datasheet

MFR RecommendedRFQ

SMAJ120A-13-F

Diodes IncorporatedIn Stock: 4789SMAJ120A-13-F Datasheet

MFR RecommendedRFQ

SMAJP4KE130A-TP

Micro Commercial CoIn Stock: 892SMAJP4KE130A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P4SMA130 is determined by the following critical parameters:

• Reverse Standoff Voltage: Must be within the 111V specification to maintain circuit protection thresholds
• Clamping Voltage: Maximum allowable clamping voltage at peak pulse current determines transient suppression effectiveness
• Peak Pulse Current: Minimum 2.3A capability required to handle specified surge conditions
• Package Type: DO-214AC (SMA) surface-mount package for PCB compatibility
• Operating Temperature Range: Must support the -65°C to 150°C thermal envelope or equivalent

The substitute parts listed below meet these core electrical and mechanical requirements while offering active product status or enhanced availability.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: P4SMA130A (Eaton - Electronics Division)

The P4SMA130A from Eaton provides the closest electrical match to the obsolete P4SMA130. It maintains identical reverse standoff voltage (111V), peak pulse current (2.3A), and peak pulse power (400W) specifications. The clamping voltage is reduced from 187.95V to 179V, representing improved transient suppression performance. The part is active in production with high inventory availability (22,400 pcs) and carries RoHS compliance certification. The operating temperature range is -55°C to 150°C, which covers most industrial and commercial applications, though designs requiring the full -65°C lower limit should evaluate thermal performance.

Secondary Substitute: SMAJP4KE130A-TP (Micro Commercial Co)

The SMAJP4KE130A-TP offers identical electrical specifications to the P4SMA130A with extended operating temperature range to 175°C. This part is suitable for applications requiring enhanced thermal performance. Inventory availability is moderate (870 pcs), and the part is active in production.

Alternative Substitute: SMAJ100E3/TR13 (Microchip Technology)

The SMAJ100E3/TR13 provides higher peak pulse current capability (2.8A) and peak pulse power (500W) compared to the original specification. The reverse standoff voltage is reduced to 100V, which may require circuit evaluation for applications with tight voltage margins. This part maintains the full -65°C to 150°C operating temperature range and carries ROHS3 compliance. Use this substitute only when the lower standoff voltage is acceptable for the application.

Not Recommended: SMAJ120A-13-F (Diodes Incorporated)

The SMAJ120A-13-F has a reverse standoff voltage of 120V, which exceeds the P4SMA130 specification by 9V. This higher standoff voltage may delay circuit protection response and is not suitable as a direct substitute unless circuit design permits the voltage shift. The peak pulse current is reduced to 2A, below the 2.3A requirement.

Frequently Asked Questions (FAQ)

Q: Can I use the P4SMA130A as a direct replacement for the P4SMA130?

A: Yes. The P4SMA130A maintains the same reverse standoff voltage (111V), peak pulse current (2.3A), and package type (DO-214AC SMA). The clamping voltage is slightly lower (179V vs. 187.95V), which improves transient suppression. The operating temperature range is -55°C to 150°C instead of -65°C to 150°C; verify this meets your application requirements.

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

A: Clamping voltage is the maximum voltage across the TVS diode when conducting peak pulse current. A lower clamping voltage provides better transient suppression. The P4SMA130A's 179V clamping voltage is superior to the original 187.95V specification.

Q: Why does the SMAJ100E3/TR13 have a lower reverse standoff voltage?

A: The SMAJ100E3/TR13 is rated for 100V standoff voltage, which is 11V lower than the P4SMA130. This means the device will begin conducting at a lower voltage threshold. Use this part only if your circuit design permits operation at the lower voltage level.

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

A: Yes. All listed substitute parts use the DO-214AC (SMA) surface-mount package, ensuring PCB footprint compatibility with the original P4SMA130 design.

Q: Which substitute has the best availability?

A: The P4SMA130A from Eaton has the highest inventory (22,400 pcs), making it the most readily available substitute for immediate procurement needs.

Q: Do all substitutes meet RoHS compliance requirements?

A: The P4SMA130A, SMAJ100E3/TR13, and SMAJ120A-13-F all carry RoHS3 compliance certification. The SMAJP4KE130A-TP does not specify RoHS status in the provided data; verify compliance requirements with the manufacturer if needed.