Vishay General Semiconductor - Diodes Division P6SMB200A-M3/52

Overview

P6SMB200A-M3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 200 V standoff voltage (V_WM), 210 V minimum breakdown voltage (V_BR), clamps transients to ≤274 V at 2.2 A peak pulse current (I_PPM), and delivers 600 W peak pulse power with a 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom power rails.

For engineers reviewing the P6SMB200A-M3/52 datasheet, P6SMB200A-M3/52 pinout, P6SMB200A-M3/52 application, or P6SMB200A-M3/52 equivalent, key selection criteria include its halogen-free RoHS-compliant M3 suffix, SMB (DO-214AA) package compatibility with automated placement, unidirectional polarity with cathode band marking, and AEC-Q101 qualification eligibility via HM3 variant.

Technical Context

This TVS diode operates as a clamping device in parallel with protected circuitry, conducting only when reverse voltage exceeds V_BR (190–210 V). Its glass-passivated junction ensures stable avalanche behavior and low incremental surge resistance (<0.5 Ω typical), enabling fast response (<1 ns) to ESD and lightning-induced transients.

Thermal performance is defined by R_θJA = 100 °C/W (on 5.0 mm × 5.0 mm copper pads) and T_J(max) = 150 °C. It supports repetitive surge duty cycles up to 0.01 % and meets J-STD-020 MSL Level 1 with 260 °C reflow peak temperature.

Key Specifications

Pinout & Package

Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 compliant. Cathode identified by black band on body end.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient voltage suppression applications.

Compared with SMAJ200A and 1.5SMC200A, P6SMB200A-M3/52 delivers optimal balance of compact SMB packaging, halogen-free compliance, and validated 600 W clamping performance - making it preferred for automotive-adjacent and volume industrial designs where assembly efficiency and regulatory alignment are prioritized.

Availability

P6SMB200A-M3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom power rail applications requiring stable component supply, halogen-free compliance, and AEC-Q101 upgrade path.

Supply support for P6SMB200A-M3/52 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.

The P6SMB Series targets cost-sensitive yet robust transient protection needs in automotive, industrial, and telecom infrastructure - engineered for high-volume SMT deployment with validated surge immunity and environmental compliance.

FAQ

What is the maximum clamping voltage of the P6SMB200A-M3/52 under a 10/1000 μs surge?

The P6SMB200A-M3/52 clamps to a maximum of 274 V when subjected to its rated peak pulse current of 2.2 A using the standardized 10/1000 μs waveform. This value is measured at T_A = 25 °C with specified mounting conditions (0.2" × 0.2" copper pads), and represents the upper voltage limit imposed on protected circuitry during transient events. The P6SMB200A-M3/52 maintains this clamping performance across its operational temperature range, supporting design margin calculations for downstream ICs.

Is the P6SMB200A-M3/52 suitable for automotive applications?

The P6SMB200A-M3/52 itself is commercial-grade with halogen-free RoHS compliance (M3 suffix), but Vishay offers AEC-Q101 qualified variants under the HM3 suffix (e.g., P6SMB200AHM3_B/H). While P6SMB200A-M3/52 shares identical electrical and thermal specifications, full automotive qualification requires the HM3 version. The P6SMB200A-M3/52 remains appropriate for automotive-adjacent systems such as infotainment power supplies or body-control module peripherals where AEC-Q101 is not mandated.

How does the SMB package of the P6SMB200A-M3/52 compare to SMA or SMC alternatives?

The SMB (DO-214AA) package of the P6SMB200A-M3/52 measures 5.59 mm × 4.06 mm - smaller than SMC (7.11 mm × 6.22 mm) but larger than SMA (4.57 mm × 2.92 mm). This yields a thermal resistance of 100 °C/W (vs. 140 °C/W for SMA and 75 °C/W for SMC), balancing board space efficiency with adequate surge dissipation. The P6SMB200A-M3/52's SMB footprint supports high-yield automated placement while maintaining sufficient copper pad area for 600 W pulse handling.

What is the reverse leakage current of the P6SMB200A-M3/52 at its stand-off voltage?

At its maximum stand-off voltage of 171 V and T_A = 25 °C, the P6SMB200A-M3/52 exhibits a maximum reverse leakage current (I_D) of 1.0 μA. This ultra-low leakage ensures minimal power loss and signal interference in high-impedance circuits such as sensor bias networks or precision reference paths. The P6SMB200A-M3/52 maintains this specification across its full operating temperature range, supporting stable performance in battery-powered or low-quiescent-current designs.

Does the P6SMB200A-M3/52 require special PCB layout considerations?

Yes - the P6SMB200A-M3/52 must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve its rated 600 W peak pulse power and thermal resistance of 100 °C/W. Short, direct traces to ground or low-impedance return paths are essential to minimize inductive voltage overshoot during fast transients. The P6SMB200A-M3/52's cathode band must be correctly oriented toward the protected line, and adjacent thermal relief should avoid constriction that impedes heat dissipation.