P6SMB24CA Equivalent & Substitute Parts

Part Overview

The P6SMB24CA is a bidirectional Zener transient voltage suppressor (TVS) diode manufactured by Littelfuse, designed for surface mount applications in the DO-214AA (SMB) package. This component provides transient overvoltage protection with a 20.5V reverse standoff voltage and 33.2V maximum clamping voltage. The part is active in production status with RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, regional availability, or design flexibility needs.

Substiute Parts

P6SMB24CA

LittelfuseIn Stock: 19692P6SMB24CA Datasheet

Current PartRFQ

TPSMB24CA

Littelfuse Inc.In Stock: 30254TPSMB24CA Datasheet

DirectRFQ

SZP6SMB24CAT3G

Littelfuse Inc.In Stock: 4620SZP6SMB24CAT3G Datasheet

MFR RecommendedRFQ

SMBJP6KE24CA-TP

Micro Commercial CoIn Stock: 5689SMBJP6KE24CA-TP Datasheet

DirectRFQ

SM6T24CA

STMicroelectronicsIn Stock: 10358SM6T24CA Datasheet

MFR RecommendedRFQ

SM6T24CA-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 30243SM6T24CA-E3/52 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P6SMB24CA is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 20.5V
• Voltage - Breakdown (Min): 22.8V
• Voltage - Clamping (Max) @ Ipp: 33.2V
• Current - Peak Pulse (10/1000µs): 18.0A to 18.4A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Type: Zener, Bidirectional
• RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories:

Direct Electrical Equivalents: Parts meeting all voltage, current, and power specifications with identical or compatible operating temperature ranges and package configurations.

Manufacturer Alternatives: Parts from different manufacturers (Littelfuse, STMicroelectronics, Vishay, Micro Commercial Co) that maintain the same electrical performance envelope and surface mount package compatibility.

Parameter Comparison

Engineering Selection Recommendations

TPSMB24CA (Littelfuse): Direct substitute with identical electrical specifications. Extended operating temperature range (-65 to 175°C) provides broader thermal performance envelope. Automotive grade with AEC-Q101 qualification. REACH Affected status requires compliance verification in regulated markets.

SZP6SMB24CAT3G (Littelfuse): Manufacturer-recommended alternative with equivalent clamping voltage and power rating. Peak pulse current specified at 18A (within tolerance of 18.4A). Automotive grade with AEC-Q101 qualification. Operating temperature range -65 to 150°C. REACH Unaffected status.

SMBJP6KE24CA-TP (Micro Commercial Co): Direct electrical equivalent with identical voltage and current specifications. Extended operating temperature range (-55 to 175°C). General purpose application classification. REACH Unaffected status. Alternative manufacturer source for supply chain diversification.

SM6T24CA (STMicroelectronics): Manufacturer-recommended part with higher peak pulse current capability (93A at 8/20µs pulse) and elevated clamping voltage (42.8V). Suitable for applications requiring enhanced transient suppression margin. Identical package and RoHS compliance. REACH Unaffected status.

SM6T24CA-E3/52 (Vishay): Direct electrical equivalent with 33.2V clamping voltage and 18A peak pulse current. Extended operating temperature range (-65 to 150°C). General purpose application classification. REACH Unaffected status. Tape & Reel packaging for automated assembly.

Frequently Asked Questions (FAQ)

Q: Can SM6T24CA be used as a direct replacement for P6SMB24CA?

A: SM6T24CA maintains the same reverse standoff voltage (20.5V) and power rating (600W), but specifies a higher clamping voltage (42.8V versus 33.2V) and significantly higher peak pulse current (93A at 8/20µs versus 18.4A at 10/1000µs). This part provides enhanced overvoltage suppression capability and is suitable for applications requiring greater transient energy absorption. Electrical compatibility depends on circuit design margins.

Q: Are all substitute parts available in the same DO-214AA SMB package?

A: All listed substitute parts are specified in DO-214AA (SMB) surface mount package configuration, ensuring mechanical and footprint compatibility with the P6SMB24CA.

Q: What is the difference between TPSMB24CA and SZP6SMB24CAT3G?

A: Both are Littelfuse products with identical voltage specifications (20.5V standoff, 33.2V clamping). TPSMB24CA specifies 18.4A peak pulse current with extended temperature range (-65 to 175°C). SZP6SMB24CAT3G specifies 18A peak pulse current with temperature range -65 to 150°C. Both carry AEC-Q101 automotive qualification. Selection depends on temperature operating requirements and current margin specifications.

Q: Which substitute part has the widest operating temperature range?

A: TPSMB24CA and SMBJP6KE24CA-TP both support -55 to 175°C operating range, providing the broadest thermal envelope among the listed substitutes.

Q: Are there RoHS compliance differences between substitute parts?

A: All substitute parts maintain ROHS3 compliance. TPSMB24CA carries REACH Affected status, while SZP6SMB24CAT3G, SMBJP6KE24CA-TP, SM6T24CA, and SM6T24CA-E3/52 are REACH Unaffected. Regulatory compliance verification is required for applications in restricted markets.

Q: Can SMBJP6KE24CA-TP from Micro Commercial Co be used for automotive applications?

A: SMBJP6KE24CA-TP is classified for general purpose applications without automotive grade or AEC-Q101 qualification. For automotive applications, TPSMB24CA or SZP6SMB24CAT3G (both AEC-Q101 qualified) are recommended.