P6SMB13CAT3G Equivalent & Substitute Parts

Part Overview

The P6SMB13CAT3G is a transient voltage suppressor (TVS) diode manufactured by onsemi, designed for surface mount applications in the DO-214AA (SMB) package. This component provides 11.1V reverse standoff voltage with 18.2V maximum clamping voltage and 33A peak pulse current capability. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for new designs and production continuity.

Substiute Parts

P6SMB13CAT3G

onsemiIn Stock: 1157P6SMB13CAT3G Datasheet

Current PartRFQ

P6SMB13CA

Eaton - Electronics DivisionIn Stock: 27212P6SMB13CA Datasheet

DirectRFQ

P6SMB13CA

Eaton - Electronics DivisionIn Stock: 27212P6SMB13CA Datasheet

DirectRFQ

1KSMB13CA

Taiwan Semiconductor CorporationIn Stock: 141871KSMB13CA Datasheet

SimilarRFQ

SMBJ11CA

Fairchild SemiconductorIn Stock: 69014SMBJ11CA Datasheet

SimilarRFQ

SMBJ11CA

Fairchild SemiconductorIn Stock: 69014SMBJ11CA Datasheet

SimilarRFQ

SMBJ11CAE3/TR13

Microchip TechnologyIn Stock: 792SMBJ11CAE3/TR13 Datasheet

SimilarRFQ

SMBJP6KE13CA-TP

Micro Commercial CoIn Stock: 3923SMBJP6KE13CA-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P6SMB13CAT3G are classified based on electrical parameter compatibility and package equivalence. The primary substitution criteria are:

• Voltage - Reverse Standoff: 11.0V to 11.1V (±0.1V tolerance)
• Voltage - Clamping (Max) @ Ipp: 18.2V (exact match)
• Current - Peak Pulse: 33A minimum (33A to 54.9A acceptable)
• Power - Peak Pulse: 600W minimum
• Package: DO-214AA / SMB (surface mount, identical footprint)
• Bidirectional Channels: 1 (single channel)
• Type: Zener diode

Parts are grouped into two categories:

Direct Equivalents: Parts with matching electrical specifications and active product status (P6SMB13CA, SMBJ11CA, SMBJ11CAE3/TR13, SMBJP6KE13CA-TP).

Enhanced Alternatives: Parts with superior current handling or temperature range (1KSMB13CA with 54.9A peak pulse and 1000W power rating).

Parameter Comparison

Engineering Selection Recommendations

P6SMB13CA (Eaton - Electronics Division): Direct electrical equivalent with active product status and RoHS compliance. Identical voltage and current specifications. Recommended as primary replacement for obsolete P6SMB13CAT3G. Available in Tape & Reel packaging with 27,200 units in stock.

SMBJ11CAE3/TR13 (Microchip Technology): Maintains full electrical compatibility with identical operating temperature range (-65°C ~ 150°C) matching the original part. ROHS3 compliant with active status. Suitable for applications requiring extended low-temperature performance.

SMBJP6KE13CA-TP (Micro Commercial Co): Direct substitute with matching voltage specifications and slightly higher current rating (34.6A). Extended operating temperature range (-55°C ~ 175°C) provides thermal margin. ROHS3 compliant and active.

SMBJ11CA (Fairchild Semiconductor): Functionally equivalent with 33A peak pulse current. Voltage specifications within acceptable tolerance (11V standoff, 12.2V breakdown). Highest inventory availability (68,980 units). Suitable for general-purpose applications.

1KSMB13CA (Taiwan Semiconductor Corporation): Enhanced alternative with superior current handling (54.9A) and power dissipation (1000W). Extended temperature range (-55°C ~ 175°C). Recommended for applications requiring increased transient protection margin or higher reliability in demanding environments.

Frequently Asked Questions (FAQ)

Q: Can P6SMB13CA directly replace P6SMB13CAT3G? A: Yes. P6SMB13CA is a direct electrical equivalent with identical voltage ratings (11.1V standoff, 18.2V clamping) and current specifications (34.6A peak pulse). Both use DO-214AA (SMB) package. The primary difference is product status: P6SMB13CA is active while P6SMB13CAT3G is obsolete.

Q: What is the difference between SMBJ11CA and P6SMB13CA? A: Both are functionally equivalent TVS diodes in DO-214AA package with 18.2V clamping voltage and 33A peak pulse current. SMBJ11CA has slightly lower standoff voltage (11V vs 11.1V) and breakdown voltage (12.2V vs 12.4V), which remains within acceptable tolerance for most applications. SMBJ11CA offers higher inventory availability.

Q: Why would I choose 1KSMB13CA over other substitutes? A: 1KSMB13CA provides enhanced transient protection with 54.9A peak pulse current and 1000W power dissipation compared to 600W in other options. The extended temperature range (-55°C ~ 175°C) supports high-temperature applications. Select this part when design margins or reliability requirements exceed standard specifications.

Q: Are all substitute parts RoHS compliant? A: P6SMB13CA is RoHS Compliant. SMBJ11CAE3/TR13, SMBJP6KE13CA-TP, and 1KSMB13CA are ROHS3 Compliant. SMBJ11CA does not specify RoHS status in available data. Verify RoHS compliance requirements for your application before selection.

Q: Do all substitutes use the same package? A: Yes. All substitute parts use DO-214AA (SMB) surface mount package with identical footprint and pinout. No PCB layout modifications are required for substitution.

Q: What is the operating temperature consideration? A: P6SMB13CAT3G operates -65°C ~ 150°C. Most substitutes operate -55°C ~ 150°C, reducing low-temperature capability by 10°C. SMBJ11CAE3/TR13 matches the original -65°C minimum. For applications requiring -65°C operation, specify SMBJ11CAE3/TR13 or verify that -55°C minimum is acceptable.