P6SMB200C Equivalent & Substitute Parts

Part Overview

The P6SMB200C is a transient voltage suppressor (TVS) diode manufactured by Littelfuse, designed for general-purpose overvoltage protection in surface-mount applications. This part operates with a reverse standoff voltage of 171V and provides clamping at 287.7V maximum. The P6SMB200C is classified as obsolete, necessitating identification of active equivalent parts that maintain electrical and mechanical compatibility for continued circuit protection functionality.

Key Parameters

Parameter	Value
Reverse Standoff Voltage (Typ)	171V
Breakdown Voltage (Min)	180V
Clamping Voltage (Max) @ Ipp	287.7V
Peak Pulse Current (10/1000µs)	2.2A
Peak Pulse Power	600W
Package Type	DO-214AA (SMB)
Mounting Type	Surface Mount
Operating Temperature Range	-55°C to 150°C (TJ)
Bidirectional Channels	1
Type	Zener

Substitute Part Grouping Explanation

Substitution of the P6SMB200C is determined by the following critical parameters:

Reverse Standoff Voltage: 171V (all substitutes maintain this specification)
Breakdown Voltage (Min): 180V minimum (substitutes specify 190V minimum, which is within acceptable tolerance)
Clamping Voltage: Maximum 287.7V for the original part; substitutes specify 274V maximum, representing improved performance
Peak Pulse Current: 2.2A nominal (substitutes maintain this specification)
Peak Pulse Power: 600W (all substitutes maintain this specification)
Package: DO-214AA / SMB form factor (all substitutes use identical package)
Mounting Type: Surface mount (all substitutes are surface mount)
Operating Temperature: -55°C to 150°C minimum range (substitutes extend to -65°C or -55°C upper limits to 150°C or 175°C)

Substitute parts are grouped by electrical equivalence within these parameters. All listed substitutes maintain the core voltage and current ratings necessary for direct replacement in the P6SMB200C application circuit.

Parameter Comparison

Part Number	Manufacturer	Status	Standoff Voltage (V)	Breakdown Min (V)	Clamp Max (V)	Peak Current (A)	Package	Temp Range (°C)	RoHS
P6SMB200C	Littelfuse	Obsolete	171	180	287.7	2.2	DO-214AA	-55 to 150	ROHS3
P6SMB200CA	Eaton - Electronics Division	Active	171	190	274	2.2	DO-214AA	-55 to 150	RoHS
P6SMB200CA-E3/52	Vishay General Semiconductor	Active	171	190	274	2.2	DO-214AA	-65 to 150	ROHS3
P6SMB200CA-M3/52	Vishay General Semiconductor	Active	171	190	274	2.2	DO-214AA	-65 to 150	ROHS3
P6SMB200CA-M3/5B	Vishay General Semiconductor	Active	171	190	274	2.2	DO-214AA	-65 to 150	ROHS3
SM6T200CA-E3/5B	Vishay General Semiconductor	Active	171	190	274	2.2	DO-214AA	-65 to 150	ROHS3
SM6T200CA	STMicroelectronics	Active	171	190	353	11.3	DO-214AA	-55 to 150	ROHS3
SMBJP6KE200CA-TP	Micro Commercial Co	Active	171	190	274	2.2	DO-214AA	-55 to 175	ROHS3
TVP06B201CA-G	Comchip Technology	Active	171	190	274	2.19	DO-214AA	-55 to 150	ROHS3

Engineering Selection Recommendations

Primary Substitutes (Electrical and Mechanical Equivalence)

P6SMB200CA (Eaton), P6SMB200CA-E3/52 (Vishay), P6SMB200CA-M3/52 (Vishay), P6SMB200CA-M3/5B (Vishay), SM6T200CA-E3/5B (Vishay), SMBJP6KE200CA-TP (Micro Commercial Co), and TVP06B201CA-G (Comchip Technology) are all active products with identical reverse standoff voltage (171V), peak pulse current (2.2A nominal), and peak pulse power (600W). These parts maintain the DO-214AA package and surface-mount configuration. All are ROHS3 compliant or RoHS compliant. Clamping voltage specifications range from 274V to 287.7V, with the majority at 274V, representing acceptable performance variation within the application envelope.

Extended Temperature Range Option

SMBJP6KE200CA-TP extends the upper operating temperature to 175°C, compared to 150°C for most alternatives, providing thermal margin in high-temperature environments.

Enhanced Current Handling

SM6T200CA (STMicroelectronics) provides 11.3A peak pulse current at 8/20µs pulse width, compared to 2.2A for the original part, with clamping voltage of 353V. This part is suitable only if the application circuit can accommodate higher current handling and increased clamping voltage.

Packaging Variants

Substitute parts are available in Cut Tape (CT), Digi-Reel, Tape & Reel (TR), and Tape & Box (TB) packaging options. Selection depends on procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can P6SMB200CA directly replace P6SMB200C?

A: Yes. P6SMB200CA maintains the 171V reverse standoff voltage, 2.2A peak pulse current, 600W peak pulse power, and DO-214AA package. The clamping voltage is 274V compared to 287.7V, representing improved performance. P6SMB200CA is an active product from Eaton.

Q: What is the difference between P6SMB200CA variants (E3/52, M3/52, M3/5B)?

A: These are packaging and tape configuration variants from Vishay. Electrical specifications are identical. E3/52 indicates Tape & Reel packaging; M3/52 and M3/5B indicate Tape & Box packaging. Selection depends on procurement format and assembly line compatibility.

Q: Is SM6T200CA a suitable substitute?

A: SM6T200CA maintains the 171V reverse standoff voltage but differs in peak pulse current (11.3A versus 2.2A) and clamping voltage (353V versus 287.7V). This part is suitable only if the application circuit design accommodates higher current and voltage specifications.

Q: Are all substitutes RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant or RoHS compliant, meeting environmental and regulatory requirements.

Q: What is the operating temperature range for substitutes?

A: Most substitutes operate from -55°C to 150°C. Vishay variants (P6SMB200CA-E3/52, P6SMB200CA-M3/52, P6SMB200CA-M3/5B, SM6T200CA-E3/5B) extend the lower limit to -65°C. SMBJP6KE200CA-TP extends the upper limit to 175°C.

Q: Can I use different manufacturers' parts interchangeably?

A: Yes, provided electrical parameters (reverse standoff voltage, peak pulse current, clamping voltage, and package type) match the application requirements. All listed substitutes maintain the core specifications of the P6SMB200C.

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