P6SMB110AT3 Equivalent & Substitute Parts

Part Overview

The P6SMB110AT3 is a 152V clamping transient voltage suppressor (TVS) diode in SMB surface mount packaging, manufactured by onsemi. This unidirectional Zener-type device is designed for transient voltage protection applications with a peak pulse current rating of 4A and 600W peak pulse power dissipation. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and component procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	94V
Voltage - Breakdown (Min)	105V
Voltage - Clamping (Max) @ Ipp	152V
Current - Peak Pulse (10/1000µs)	4A
Power - Peak Pulse	600W
Package / Case	DO-214AA, SMB
Operating Temperature	-65°C ~ 150°C (TJ)
Type	Zener
Unidirectional Channels	1

Substitute Part Grouping Explanation

Substitution eligibility for the P6SMB110AT3 is determined by the following critical parameters:

Voltage - Reverse Standoff: 94V (±tolerance)
Voltage - Clamping (Max) @ Ipp: 152V (±tolerance)
Current - Peak Pulse (10/1000µs): 4A minimum
Power - Peak Pulse: 600W minimum
Package / Case: DO-214AA or SMB compatible
Unidirectional Channels: 1
Type: Zener

Substitute parts are classified into two categories:

Direct Equivalents: Parts with identical electrical specifications and active product status, suitable for direct replacement without circuit redesign.

Similar Alternatives: Parts with comparable voltage and current ratings within acceptable engineering tolerances, offering functional equivalence with minor parameter variations.

Parameter Comparison

Part Number	Manufacturer	VWM (Typ)	VBR (Min)	VC (Max)	Ipp (A)	Power (W)	Package	Status	RoHS
P6SMB110AT3	onsemi	94V	105V	152V	4	600	DO-214AA, SMB	Obsolete	Non-compliant
P6SMB110A	Eaton - Electronics Division	94V	105V	152V	4	600	DO-214AA, SMB	Active	Compliant
1KSMB110A	Littelfuse Inc.	94V	105V	152V	6.6	1000	DO-214AA, SMB	Active	ROHS3 Compliant
P6SMB110A-M3/52	Vishay General Semiconductor - Diodes Division	94V	105V	152V	3.9	600	DO-214AA, SMB	Active	ROHS3 Compliant
P6SMB110A-M3/5B	Vishay General Semiconductor - Diodes Division	94V	105V	152V	3.9	600	DO-214AA, SMB	Active	ROHS3 Compliant
SMBJ90A	MDD	90V	100V	146V	4.1	600	DO-214AA, SMB	Active	ROHS3 Compliant
SMBJP6KE110A-TP	Micro Commercial Co	94V	105V	152V	4	600	DO-214AA, SMB	Active	Not specified
TVP06B111A-G	Comchip Technology	94V	104.5V	152V	3.95	600	DO-214AA, SMB	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: P6SMB110A (Eaton - Electronics Division)

The P6SMB110A is the direct electrical equivalent with identical voltage and current specifications. It maintains active product status and RoHS compliance, providing the most straightforward replacement path for the obsolete P6SMB110AT3.

Secondary Recommendations:

P6SMB110A-M3/52 and P6SMB110A-M3/5B (Vishay) are functionally equivalent with peak pulse current of 3.9A, meeting the 4A minimum requirement. Both are active products with ROHS3 compliance and extended temperature range (-65°C ~ 150°C).

SMBJP6KE110A-TP (Micro Commercial Co) matches all critical electrical parameters and is available in active status.

TVP06B111A-G (Comchip Technology) provides equivalent performance with 3.95A peak pulse current and ROHS3 compliance.

Alternative Consideration: 1KSMB110A (Littelfuse Inc.)

This part offers higher peak pulse current (6.6A) and power dissipation (1kW), providing enhanced margin for transient protection. It is suitable when design requirements allow for higher performance specifications and ROHS3 compliance is required.

Not Recommended: SMBJ90A (MDD)

This part has lower reverse standoff voltage (90V) and clamping voltage (146V), falling outside acceptable substitution parameters for the 94V/152V specification.

Frequently Asked Questions (FAQ)

Q: Can I use P6SMB110A as a direct replacement for P6SMB110AT3?

A: Yes. The P6SMB110A has identical voltage ratings (94V standoff, 152V clamping) and current specifications (4A peak pulse). Both use DO-214AA/SMB packaging. The primary difference is product status: P6SMB110A is active while P6SMB110AT3 is obsolete.

Q: What is the difference between the Vishay P6SMB110A-M3/52 and P6SMB110A-M3/5B variants?

A: Both parts have identical electrical specifications (94V standoff, 152V clamping, 3.9A peak pulse). The difference lies in packaging format: M3/52 uses Tape & Box (TB) while M3/5B also uses Tape & Box (TB). Both are active products with ROHS3 compliance.

Q: Is the 1KSMB110A suitable as a substitute?

A: The 1KSMB110A is functionally compatible with identical voltage specifications but provides higher peak pulse current (6.6A vs 4A) and power dissipation (1kW vs 600W). It is suitable for applications where enhanced transient protection margin is acceptable and beneficial.

Q: Why is SMBJ90A not recommended?

A: The SMBJ90A has lower voltage ratings (90V standoff, 146V clamping) compared to the required 94V/152V specification. This voltage difference makes it unsuitable for direct substitution in circuits designed for the P6SMB110AT3.

Q: Are all substitute parts RoHS compliant?

A: Most active substitutes are ROHS3 compliant. The P6SMB110A (Eaton) is RoHS compliant. SMBJP6KE110A-TP does not specify RoHS status in available data. Verify RoHS compliance requirements for your specific application before final selection.

Q: What packaging options are available for substitutes?

A: All substitute parts use DO-214AA or SMB surface mount packaging, compatible with the original P6SMB110AT3 footprint. Packaging formats vary between manufacturers (Tape & Reel, Tape & Box, or Bulk), but component dimensions remain consistent for PCB assembly.

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