P4SMA36A-Q Equivalent & Substitute Parts

Part Overview

The P4SMA36A-Q is a unidirectional transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for telecom applications requiring transient protection. This surface mount component operates with a reverse standoff voltage of 30.8V and provides clamping at 49.9V with peak pulse current handling of 8.2A. The part is actively produced, AEC-Q101 qualified for automotive applications, and RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

P4SMA36A-Q

Bourns Inc.In Stock: 1089P4SMA36A-Q Datasheet

Current PartRFQ

SMAJE30AH

Eaton - Electronics DivisionIn Stock: 5929SMAJE30AH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P4SMA36A-Q is determined by strict equivalence in the following electrical and mechanical parameters:

Critical Substitution Criteria:

• Voltage - Reverse Standoff (Typ): 30V to 30.8V range
• Voltage - Clamping (Max) @ Ipp: 48.4V to 49.9V range
• Current - Peak Pulse (10/1000µs): 8.2A to 8.3A range
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC (SMA) surface mount
• Unidirectional Channels: 1
• Operating Temperature: -55°C to 150°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant

The SMAJE30AH from Eaton - Electronics Division meets these criteria with voltage standoff of 30V, clamping voltage of 48.4V, and peak pulse current of 8.3A, all within acceptable tolerance bands for this application category.

Parameter Comparison

Engineering Selection Recommendations

P4SMA36A-Q (Bourns Inc.): Select this part when Bourns supply chain availability is prioritized or when existing design validation is specific to Bourns manufacturing. Current inventory: 989 pcs. Active product status with AEC-Q101 qualification and ROHS3 compliance confirms ongoing production support.

SMAJE30AH (Eaton - Electronics Division): Select this part when Eaton supply chain availability is prioritized or when design flexibility permits manufacturer substitution. Current inventory: 5841 pcs. Active product status with identical AEC-Q101 qualification and ROHS3 compliance confirms equivalent reliability and regulatory standing. Higher inventory availability may support extended production runs or rapid fulfillment requirements.

Both parts are automotive-grade, AEC-Q101 qualified, and ROHS3 compliant. Electrical parameters fall within equivalent operating ranges for telecom transient protection applications. Surface mount DO-214AC (SMA) packaging ensures mechanical and thermal compatibility in existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can SMAJE30AH directly replace P4SMA36A-Q in production?

A: Yes. Both parts are unidirectional TVS diodes with equivalent reverse standoff voltage (30V vs 30.8V), clamping voltage (48.4V vs 49.9V), and peak pulse current (8.3A vs 8.2A). Identical package (DO-214AC/SMA), mounting type (surface mount), operating temperature range (-55 to 150°C), and automotive qualification (AEC-Q101) confirm direct substitution compatibility.

Q: What are the voltage tolerance differences?

A: P4SMA36A-Q specifies 30.8V reverse standoff and 49.9V clamping. SMAJE30AH specifies 30V reverse standoff and 48.4V clamping. Both operate within the same functional band for 30V-class telecom protection circuits. Breakdown voltage minimums (34.2V vs 33.3V) are both above the reverse standoff specification, confirming proper device operation.

Q: Are both parts suitable for automotive applications?

A: Yes. Both parts carry automotive grade designation and AEC-Q101 qualification, confirming compliance with automotive reliability and quality standards. Operating temperature range (-55 to 150°C junction temperature) supports automotive environmental requirements.

Q: What is the packaging format for both parts?

A: Both parts use DO-214AC (SMA) surface mount package in Tape & Reel (TR) format. Moisture sensitivity level is 1 (Unlimited) for both, indicating no special moisture control requirements during storage or handling.

Q: Are there regulatory or compliance differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS code 8541.10.0080. Regulatory and environmental compliance status is equivalent.