P6SMB110 Equivalent & Substitute Parts

Part Overview

The P6SMB110 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection in surface-mount applications. This part operates with a 94V reverse standoff voltage and provides 159.6V maximum clamping voltage at 4A peak pulse current in a DO-214AA (SMB) package. The P6SMB110 is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

P6SMB110

Littelfuse Inc.In Stock: 866P6SMB110 Datasheet

Current PartRFQ

P6SMB110A

Eaton - Electronics DivisionIn Stock: 45376P6SMB110A Datasheet

MFR RecommendedRFQ

P6SMB110A-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 1095P6SMB110A-E3/5B Datasheet

DirectRFQ

P6SMB110A

Eaton - Electronics DivisionIn Stock: 45376P6SMB110A Datasheet

MFR RecommendedRFQ

TVP06B111A-G

Comchip TechnologyIn Stock: 753TVP06B111A-G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P6SMB110 are qualified based on the following critical parameters:

• Reverse Standoff Voltage: 94V (all substitutes maintain this specification)
• Peak Pulse Current: 4A nominal (substitutes range 3.9A to 4A, within acceptable tolerance)
• Clamping Voltage: 152V to 159.6V maximum (all substitutes operate within this range)
• Package Type: DO-214AA / SMB surface mount (mechanical and electrical compatibility)
• Peak Pulse Power: 600W (consistent across all qualified substitutes)
• Operating Temperature: -55°C to -65°C minimum to 150°C maximum

All substitute parts maintain the same unidirectional Zener diode topology and are suitable for general-purpose transient voltage suppression applications. Substitutes are grouped by manufacturer and product status (active vs. obsolete).

Parameter Comparison

Engineering Selection Recommendations

P6SMB110A (Eaton - Electronics Division): This part is the manufacturer-recommended substitute with active product status. It maintains identical reverse standoff voltage (94V), peak pulse current (4A), and peak pulse power (600W) specifications. The clamping voltage is 152V, which is lower than the original 159.6V but remains within acceptable transient suppression parameters. RoHS compliance is confirmed. This part is recommended as the primary replacement for new designs and ongoing procurement.

P6SMB110A-E3/5B (Vishay General Semiconductor - Diodes Division): This substitute offers active product status and ROHS3 compliance. It provides an extended operating temperature range (-65°C to 150°C) compared to the original specification. Peak pulse current is 3.9A, which is marginally lower than the 4A specification but acceptable for most general-purpose applications. The clamping voltage is 152V. This part is suitable for applications requiring extended low-temperature operation.

TVP06B111A-G (Comchip Technology): This part maintains active product status and ROHS3 compliance. It provides a peak pulse current of 3.95A and clamping voltage of 152V. The breakdown voltage is 104.5V, which is within the acceptable range. This part is suitable as an alternative source for general-purpose transient voltage suppression.

All substitute parts are surface-mount compatible in DO-214AA (SMB) packages and maintain the same electrical protection characteristics for transient voltage suppression applications.

Frequently Asked Questions (FAQ)

Q: Can P6SMB110A be used as a direct replacement for P6SMB110?

A: Yes. Both parts maintain the same 94V reverse standoff voltage, 4A peak pulse current, and 600W peak pulse power. The primary difference is the clamping voltage: P6SMB110A provides 152V versus the original 159.6V. This difference is acceptable for general-purpose transient suppression applications. P6SMB110A is the manufacturer-recommended substitute.

Q: What is the difference between P6SMB110A-E3/5B and P6SMB110A?

A: Both parts share the same electrical specifications (94V standoff, 152V clamping, 600W power). P6SMB110A-E3/5B offers an extended operating temperature range (-65°C to 150°C versus -55°C to 150°C) and is manufactured by Vishay. Peak pulse current is 3.9A versus 4A. Select P6SMB110A-E3/5B if your application requires operation below -55°C.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts use the DO-214AA (SMB) surface-mount package, ensuring mechanical and electrical compatibility with the original P6SMB110 footprint.

Q: What is the significance of the clamping voltage difference between P6SMB110 (159.6V) and its substitutes (152V)?

A: The clamping voltage represents the maximum voltage across the diode during transient suppression. The 7.6V difference between the original and substitutes is within typical design margins for transient voltage suppression circuits. Substitutes with 152V clamping remain effective for protecting circuits designed for the original 159.6V specification.

Q: Are all substitute parts RoHS compliant?

A: Yes. P6SMB110A is RoHS compliant. P6SMB110A-E3/5B and TVP06B111A-G are ROHS3 compliant. All parts meet environmental compliance requirements for current manufacturing standards.

Q: Which substitute part has the best availability?

A: P6SMB110A (Eaton) has the highest inventory at 45,300 pieces. P6SMB110A-E3/5B (Vishay) has 1,059 pieces, and TVP06B111A-G (Comchip) has 667 pieces available.