Vishay General Semiconductor - Diodes Division P6SMB200CAHE3_A/H

Overview

P6SMB200CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on power and signal lines. It features a 200 V standoff voltage (VWM), 220 V minimum breakdown voltage (VBR), 274 V maximum clamping voltage (VC) at 2.2 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) capability with a 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.

For engineers reviewing the P6SMB200CAHE3_A/H datasheet, P6SMB200CAHE3_A/H pinout, P6SMB200CAHE3_A/H application, or P6SMB200CAHE3_A/H equivalent, this device is selected for high-voltage transient suppression where bidirectional polarity, AEC-Q101 qualification, and SMB (DO-214AA) package compatibility are required in automotive and industrial systems.

Technical Context

This bidirectional TVS operates symmetrically across both polarities, delivering consistent clamping performance regardless of voltage polarity reversal. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns), while low incremental surge resistance supports robust energy absorption during repetitive ESD or lightning-induced surges.

The device is rated for 150 °C maximum junction temperature and meets J-STD-020 MSL Level 1 (peak reflow 260 °C), enabling compatibility with standard SMT assembly processes. Its thermal resistance (RθJA = 100 °C/W) reflects operation on minimal copper pads (0.2" × 0.2"), making it suitable for space-constrained PCB layouts without heatsinking.

Key Specifications

Pinout & Package

Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMBJ200CA and 1.5SMC200CA, P6SMB200CAHE3_A/H delivers identical clamping performance in a smaller SMB footprint with guaranteed AEC-Q101 qualification - making it optimal for space-constrained automotive modules requiring zero-rework qualification evidence.

Availability

P6SMB200CAHE3_A/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC analog inputs, telecom DC bus protection, and consumer appliance motor drive circuits requiring stable component supply across multi-year production programs.

Supply support for P6SMB200CAHE3_A/H 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 designs and manufactures discrete semiconductors including diodes, MOSFETs, and TVS devices, with emphasis on reliability, precision, and application-specific optimization.

The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for robustness under surge, thermal stress, and long-term environmental exposure.

FAQ

What is the clamping voltage of P6SMB200CAHE3_A/H at its rated peak pulse current?

The P6SMB200CAHE3_A/H has a maximum clamping voltage (VC) of 274 V at 2.2 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per standard test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads) and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB200CAHE3_A/H maintains this clamping performance bidirectionally.

Is P6SMB200CAHE3_A/H suitable for automotive applications?

Yes, P6SMB200CAHE3_A/H is AEC-Q101 qualified, with test evidence covering temperature cycling, highly accelerated life testing (HALT), and ESD per JESD22-A114. Its HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction, making it approved for under-hood and cabin electronics such as body control modules and sensor interface protection. The P6SMB200CAHE3_A/H meets automotive reliability and traceability requirements.

What does the "CA" suffix indicate in P6SMB200CAHE3_A/H?

The "CA" suffix in P6SMB200CAHE3_A/H designates a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P6SMB200A), the CA version has no cathode band marking and functions identically in either polarity. This makes the P6SMB200CAHE3_A/H ideal for AC-coupled lines, floating grounds, and differential signal protection.

What is the maximum operating junction temperature for P6SMB200CAHE3_A/H?

The P6SMB200CAHE3_A/H has a maximum junction temperature (TJ max.) of +150 °C, verified per thermal characterization in the official Vishay datasheet (Document Number: 88370). This rating allows reliable operation in high-ambient environments such as engine compartments, industrial enclosures, and sealed power supplies. Derating curves in Figure 2 confirm usable power dissipation down to 50% at 125 °C ambient, ensuring robustness of the P6SMB200CAHE3_A/H in thermally demanding designs.

How does the SMB (DO-214AA) package of P6SMB200CAHE3_A/H compare to SMC in size and thermal performance?

The SMB (DO-214AA) package of P6SMB200CAHE3_A/H measures 4.57 mm × 3.94 mm × 2.20 mm, significantly smaller than the SMC (DO-214AB) package (7.11 mm × 6.22 mm × 2.62 mm). Thermally, P6SMB200CAHE3_A/H has RθJA = 100 °C/W (on 0.2" × 0.2" pads), whereas SMC variants typically achieve ~75 °C/W. Thus, the P6SMB200CAHE3_A/H trades some thermal margin for compactness - appropriate where board space is constrained and peak pulse duty cycle remains low.