P6SMB43A-M3/52 Equivalent & Substitute Parts

Part Overview

The P6SMB43A-M3/52 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 36.8V reverse standoff voltage class with a 59.3V maximum clamping voltage and 10.1A peak pulse current rating. The device is designed for general purpose transient protection applications and is currently in active production status. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

P6SMB43A-M3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 1059P6SMB43A-M3/52 Datasheet

Current PartRFQ

P6SMB43A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 1199P6SMB43A-E3/52 Datasheet

DirectRFQ

1KSMB43A

Taiwan Semiconductor CorporationIn Stock: 421771KSMB43A Datasheet

MFR RecommendedRFQ

P6SMB43A

Eaton - Electronics DivisionIn Stock: 148264P6SMB43A Datasheet

MFR RecommendedRFQ

P6SMB43A

Eaton - Electronics DivisionIn Stock: 148264P6SMB43A Datasheet

MFR RecommendedRFQ

TPSMB43A

Littelfuse Inc.In Stock: 3334TPSMB43A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P6SMB43A-M3/52 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Mandatory Matching Parameters:

• Voltage - Reverse Standoff (Typ): 36.8V
• Voltage - Breakdown (Min): 40.9V
• Voltage - Clamping (Max) @ Ipp: 59.3V
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Type: Zener, Unidirectional

Allowable Variation Parameters:

• Current - Peak Pulse (10/1000µs): ±0.2A tolerance
• Power - Peak Pulse: Equal or greater rating
• Operating Temperature Range: Equal or extended range
• Packaging Format: Tape & Box (TB) or Tape & Reel (TR)

All identified substitute parts maintain electrical equivalence within these defined parameters and are suitable for direct replacement in applications designed for the P6SMB43A-M3/52.

Parameter Comparison

Engineering Selection Recommendations

P6SMB43A-E3/52 (Vishay): Direct equivalent with identical electrical specifications and operating temperature range. Differs only in packaging format (Tape & Reel vs. Tape & Box). Suitable for high-volume production environments requiring reel packaging. ROHS3 compliant.

1KSMB43A (Taiwan Semiconductor Corporation): Electrically equivalent with higher peak pulse current (16.9A) and power dissipation (1000W), providing enhanced transient protection margin. Extended upper operating temperature limit (175°C vs. 150°C). ROHS3 compliant. Recommended for applications requiring increased thermal headroom or higher transient energy absorption.

P6SMB43A (Eaton): Electrically equivalent with peak pulse current of 10.3A and 600W power rating. Operating temperature range -55°C to 150°C. RoHS compliant. Suitable for general purpose applications with standard thermal requirements.

TPSMB43A (Littelfuse Inc.): Electrically equivalent with peak pulse current of 10.3A and 600W power rating. Extended upper operating temperature limit (175°C). Automotive grade with AEC-Q101 qualification. ROHS3 compliant. Recommended for automotive and high-reliability applications requiring automotive-grade components.

All substitute parts maintain active production status and are available in commercial quantities.

Frequently Asked Questions (FAQ)

Q: Can P6SMB43A-E3/52 replace P6SMB43A-M3/52 directly? A: Yes. Both parts are manufactured by Vishay with identical electrical specifications (36.8V standoff, 59.3V clamping, 10.1A peak pulse). The only difference is packaging format: E3/52 uses Tape & Reel while M3/52 uses Tape & Box. Direct substitution is valid for all applications.

Q: What is the advantage of using 1KSMB43A over the original part? A: The 1KSMB43A provides higher peak pulse current (16.9A vs. 10.1A) and power dissipation (1000W vs. 600W), offering greater transient protection margin. It also supports extended upper operating temperature (175°C vs. 150°C). These characteristics make it suitable for applications with higher transient energy requirements or elevated ambient temperatures.

Q: Are automotive-grade alternatives available? A: Yes. The TPSMB43A from Littelfuse is automotive grade with AEC-Q101 qualification. It maintains electrical equivalence while meeting automotive reliability standards. This part is recommended for automotive and safety-critical applications.

Q: What is the difference between Tape & Box and Tape & Reel packaging? A: Tape & Box (TB) packaging is suitable for lower-volume or manual assembly processes. Tape & Reel (TR) packaging is optimized for high-speed automated assembly lines. Both formats contain the same component; the choice depends on manufacturing process requirements.

Q: Are all substitute parts RoHS compliant? A: Yes. All identified substitutes are RoHS compliant. P6SMB43A-E3/52, 1KSMB43A, and TPSMB43A are ROHS3 compliant. The Eaton P6SMB43A is RoHS compliant. All parts meet environmental regulatory requirements.

Q: Can I use TPSMB43A in non-automotive applications? A: Yes. TPSMB43A is automotive grade but can be used in general purpose applications. Its automotive qualification ensures higher reliability standards, making it suitable for any application requiring robust component performance.

Q: What is the operating temperature range difference between substitutes? A: The original P6SMB43A-M3/52 operates from -65°C to 150°C. The 1KSMB43A and TPSMB43A extend the upper limit to 175°C, providing 25°C additional thermal margin. The Eaton P6SMB43A operates from -55°C to 150°C, with a 10°C reduction in lower temperature capability.