P6SMBJ11C Equivalent & Substitute Parts

Part Overview

The P6SMBJ11C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., housed in a DO-214AA (SMB) surface mount package. This component is designed for general-purpose transient voltage suppression applications with a peak pulse power rating of 600W. The part is currently listed as obsolete, making identification of equivalent and substitute components necessary for ongoing design support and procurement.

Substiute Parts

P6SMBJ11C

Littelfuse Inc.In Stock: 1043P6SMBJ11C Datasheet

Current PartRFQ

P6SMB11CA

Eaton - Electronics DivisionIn Stock: 2357P6SMB11CA Datasheet

MFR RecommendedRFQ

P6SMB11CA

Eaton - Electronics DivisionIn Stock: 2357P6SMB11CA Datasheet

MFR RecommendedRFQ

SMBJP6KE11CA-TP

Micro Commercial CoIn Stock: 4489SMBJP6KE11CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMBJ11C is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Voltage - Reverse Standoff (Typ): 9.4V
• Current - Peak Pulse (10/1000µs): 39.1A
• Power - Peak Pulse: 600W
• Bidirectional operation with single channel
• Zener diode type

Mechanical Compatibility Criteria:

• Package / Case: DO-214AA, SMB
• Surface mount configuration
• Mounting type consistency

Compliance Criteria:

• RoHS compliance status
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute parts P6SMB11CA and SMBJP6KE11CA-TP meet these criteria with allowable variations in voltage clamping characteristics while maintaining the same reverse standoff voltage, peak pulse current, and power dissipation ratings.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain active product status, ensuring long-term availability and supply chain stability compared to the obsolete P6SMBJ11C.

P6SMB11CA (Eaton - Electronics Division): This part is RoHS compliant and maintains identical reverse standoff voltage and peak pulse specifications. The voltage clamping characteristic is lower (15.6V vs. 16.38V), providing improved transient suppression performance. Operating temperature range matches the original specification.

SMBJP6KE11CA-TP (Micro Commercial Co): This part is ROHS3 compliant and offers an extended operating temperature range (-55°C ~ 175°C) compared to the original (-55°C ~ 150°C). Voltage clamping and electrical performance are equivalent to the P6SMB11CA variant. REACH compliance status is documented as unaffected.

Both substitutes are electrically and mechanically compatible with the P6SMBJ11C within the specified parameter tolerances and maintain identical package configurations for direct board-level replacement.

Frequently Asked Questions (FAQ)

Q: Can P6SMB11CA or SMBJP6KE11CA-TP be used as direct replacements for P6SMBJ11C?

A: Yes. Both parts maintain the same reverse standoff voltage (9.4V), peak pulse current (39.1A), and power dissipation (600W). Package configuration (DO-214AA, SMB) and mounting type (surface mount) are identical, enabling direct board-level substitution.

Q: What is the significance of the voltage clamping difference between P6SMBJ11C (16.38V) and the substitutes (15.6V)?

A: The lower clamping voltage in the substitute parts (15.6V) represents improved transient suppression performance. This characteristic remains within acceptable design margins for general-purpose TVS applications and does not compromise circuit protection.

Q: Are there compliance or regulatory differences between the substitute parts?

A: P6SMB11CA is RoHS compliant, while SMBJP6KE11CA-TP is ROHS3 compliant. Both parts have Moisture Sensitivity Level 1 (Unlimited) and are suitable for standard manufacturing processes. SMBJP6KE11CA-TP includes documented REACH compliance status.

Q: Does the extended temperature range of SMBJP6KE11CA-TP affect its suitability as a substitute?

A: No. The extended operating temperature range (-55°C ~ 175°C) of SMBJP6KE11CA-TP is a superset of the original specification (-55°C ~ 150°C), making it suitable for applications requiring the original temperature range and providing additional margin for higher-temperature environments.

Q: What is the inventory status of these substitute parts?

A: P6SMB11CA is available with 2290 pieces in stock. SMBJP6KE11CA-TP is available with 4400 pieces in stock. Both parts are in active production status, ensuring continued availability.