P6SMB200A-M3/5B Equivalent & Substitute Parts

Part Overview

The P6SMB200A-M3/5B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component operates as a Zener-type TVS device in the DO-214AA (SMB) surface mount package, designed for general-purpose transient voltage suppression applications. The part is Active status and ROHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, packaging format availability, and inventory optimization across multiple manufacturers and distribution channels.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	171	V
Voltage - Breakdown (Min)	190	V
Voltage - Clamping (Max) @ Ipp	274	V
Current - Peak Pulse (10/1000µs)	2.2	A
Power - Peak Pulse	600	W
Operating Temperature Range	-65°C to 150°C	TJ
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the P6SMB200A-M3/5B are classified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Critical Parameters for Substitution:

Voltage - Reverse Standoff (Typ): 171V
Voltage - Breakdown (Min): 190V
Voltage - Clamping (Max) @ Ipp: 274V
Current - Peak Pulse (10/1000µs): 2.2A (±0.1A tolerance acceptable)
Power - Peak Pulse: 600W
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Packaging Format Variations: Substitute parts are available in three packaging formats: Tape & Reel (TR), Cut Tape (CT), and Tape & Box (TB). These represent distribution and handling variations of the same electrical component and are fully interchangeable for circuit design purposes.

Manufacturer Variations: Multiple manufacturers produce equivalent TVS diodes meeting the specified electrical parameters. Vishay General Semiconductor - Diodes Division, Meritek, Micro Commercial Co, STMicroelectronics, and Littelfuse Inc. all offer compliant alternatives.

Parameter Comparison

Part Number	Manufacturer	Vwm (Typ) V	Vbr (Min) V	Vc (Max) @ Ipp V	Ipp (10/1000µs) A	Ppk W	Temp Range °C	Package	Packaging Format
P6SMB200A-M3/5B	Vishay	171	190	274	2.2	600	-65 to 150	DO-214AA (SMBJ)	Tape & Box
P6SMB200A-E3/52	Vishay	171	190	274	2.2	600	-65 to 150	DO-214AA (SMB)	Tape & Reel
P6SMB200A-M3/52	Vishay	171	190	274	2.2	600	-65 to 150	DO-214AA (SMBJ)	Cut Tape
P6SMB200A	Meritek	171	190	274	2.19	600	-55 to 150	DO-214AA (SMB)	—
SMBJP6KE200A-TP	Micro Commercial Co	171	190	274	2.2	600	-55 to 175	DO-214AA (SMBJ)	Cut Tape & Digi-Reel
SM6T200A	STMicroelectronics	171	190	353	11.3 (8/20µs)	600	-55 to 150	DO-214AA (SMB)	Cut Tape & Digi-Reel
SZP6SMB200AT3G	Littelfuse Inc.	171	190	274	2.2	600	-65 to 150	DO-214AA (SMB)	Tape & Reel

Engineering Selection Recommendations

Direct Electrical Equivalents (Preferred for Drop-In Replacement):

The parts P6SMB200A-E3/52, P6SMB200A-M3/52, SMBJP6KE200A-TP, and SZP6SMB200AT3G meet all critical electrical parameters of the P6SMB200A-M3/5B. Selection among these should be based on packaging format availability and procurement lead time. All are ROHS3 compliant and MSL 1 rated.

The Meritek P6SMB200A variant exhibits a peak pulse current of 2.19A, which falls within acceptable tolerance of the 2.2A specification and operates across the same voltage parameters. Operating temperature range is reduced to -55°C to 150°C; verify application requirements before selection.

Alternative with Modified Performance Characteristics:

The SM6T200A from STMicroelectronics maintains identical voltage parameters (171V standoff, 190V breakdown, 171V reverse standoff) but exhibits significantly higher peak pulse current (11.3A at 8/20µs pulse) and clamping voltage (353V). This part is suitable only for applications where higher transient current handling and elevated clamping voltage are acceptable or beneficial. Operating temperature range is -55°C to 150°C.

Automotive-Grade Option:

The SZP6SMB200AT3G from Littelfuse Inc. carries AEC-Q101 automotive qualification and is suitable for automotive and harsh-environment applications. Electrical parameters are identical to the primary part. Capacitance specification (115pF @ 1MHz) is provided for this variant.

Frequently Asked Questions (FAQ)

Q: Can I substitute P6SMB200A-E3/52 for P6SMB200A-M3/5B in my circuit?

A: Yes. Both parts are manufactured by Vishay and share identical electrical specifications: 171V standoff, 190V breakdown, 274V clamping, and 2.2A peak pulse current. The difference is packaging format (Tape & Reel versus Tape & Box). Circuit performance is unchanged.

Q: What is the difference between the Vishay P6SMB200A variants?

A: The Vishay P6SMB200A-M3/5B, P6SMB200A-E3/52, and P6SMB200A-M3/52 are electrically identical. Differences are in packaging format: M3/5B is Tape & Box, E3/52 is Tape & Reel, and M3/52 is Cut Tape. All are suitable for surface mount assembly.

Q: Is the Meritek P6SMB200A a direct substitute?

A: The Meritek P6SMB200A is electrically compatible with a peak pulse current of 2.19A (versus 2.2A specified). The operating temperature range is narrower (-55°C to 150°C versus -65°C to 150°C). Verify your application's minimum operating temperature requirement before selection.

Q: When should I use SM6T200A instead of P6SMB200A-M3/5B?

A: The SM6T200A is not a direct substitute. It provides higher transient current handling (11.3A versus 2.2A) and higher clamping voltage (353V versus 274V). Use SM6T200A only if your circuit design requires these enhanced characteristics. Verify circuit compatibility before substitution.

Q: Is SZP6SMB200AT3G suitable for automotive applications?

A: Yes. The SZP6SMB200AT3G carries AEC-Q101 automotive qualification and is rated for automotive-grade reliability. Electrical parameters are identical to P6SMB200A-M3/5B. This part is recommended for automotive and mission-critical applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of P6SMB200A-M3/5B.

Q: Can I mix packaging formats in the same assembly?

A: Yes. Tape & Reel, Cut Tape, and Tape & Box formats contain electrically identical components. Mixing formats is acceptable for assembly; however, verify your pick-and-place equipment compatibility with each format.

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