Vishay General Semiconductor - Diodes Division P6SMB7.5AHM3_A/H

Overview

P6SMB7.5AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features 600 W peak pulse power (10/1000 µs), 7.13–7.88 V breakdown voltage at 10 mA, 6.40 V stand-off voltage, 11.3 V maximum clamping voltage at 53.1 A peak pulse current, and AEC-Q101 qualification for automotive use.

For engineers reviewing the P6SMB7.5AHM3_A/H datasheet, P6SMB7.5AHM3_A/H pinout, P6SMB7.5AHM3_A/H application, or P6SMB7.5AHM3_A/H equivalent, key selection criteria include clamping performance under 10/1000 µs surge, unidirectional polarity with cathode band marking, thermal resistance (R_θJA = 100 °C/W), and halogen-free RoHS-compliant construction per JESD201 Class 2 whisker test.

Technical Context

This TVS diode operates as a fast-acting shunt protector, responding in <1 ps to transient overvoltages and clamping within nanoseconds to limit downstream voltage stress. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<500 µA at 6.40 V).

The device is rated for repetitive 10/1000 µs surges at 0.01% duty cycle, derated above 25 °C per Fig. 2, and supports operating junction temperatures from –65 °C to +150 °C. Mounting on 0.2" × 0.2" copper pads is required to achieve specified PPPM and thermal performance.

Key Specifications

Pinout & Package

Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode indicated by band; polarity critical for unidirectional operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMAJ7.5A-E3/52 and 1.5SMC7.5A, P6SMB7.5AHM3_A/H delivers AEC-Q101 assurance in the smallest standardized surface-mount TVS footprint, enabling compact, automotive-compliant designs without sacrificing clamping precision or thermal robustness.

Availability

P6SMB7.5AHM3_A/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, consumer power adapter outputs, and telecom Ethernet PHY protection requiring stable component supply and long-term lifecycle support.

Supply support for P6SMB7.5AHM3_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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.

The P6SMB Series targets high-reliability transient suppression in space-constrained, thermally demanding environments-especially automotive ECUs, industrial control systems, and infrastructure equipment where AEC-Q101 compliance and consistent clamping performance are mandatory.

FAQ

What is the maximum clamping voltage of P6SMB7.5AHM3_A/H under a 10/1000 µs surge?

The maximum clamping voltage of P6SMB7.5AHM3_A/H is 11.3 V at 53.1 A peak pulse current, measured under the standardized 10/1000 µs waveform. This value ensures downstream ICs rated for 12 V absolute maximum will remain within safe operating limits during transient events. The P6SMB7.5AHM3_A/H achieves this clamping performance due to its low incremental surge resistance and optimized junction design.

Is P6SMB7.5AHM3_A/H suitable for automotive applications?

Yes, P6SMB7.5AHM3_A/H is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials meeting JESD201 Class 2 whisker resistance. Its –65 °C to +150 °C operating junction temperature range, MSL Level 1 reflow compatibility, and validated reliability testing make it appropriate for under-hood and cabin-mounted automotive modules. The P6SMB7.5AHM3_A/H suffix explicitly denotes this automotive qualification.

How does the stand-off voltage (V_WM) of P6SMB7.5AHM3_A/H compare to its nominal voltage rating?

The stand-off voltage (V_WM) of P6SMB7.5AHM3_A/H is 6.40 V, which is intentionally set below the nominal 7.5 V designation to ensure reliable blocking during normal operation while allowing margin for tolerance and temperature drift. This 6.40 V value guarantees less than 500 µA reverse leakage at room temperature, preventing unintended loading of 5 V or 6 V circuits. The P6SMB7.5AHM3_A/H maintains this specification across its full temperature range.

What package type does P6SMB7.5AHM3_A/H use, and what are its key mechanical dimensions?

P6SMB7.5AHM3_A/H uses the SMB (DO-214AA) surface-mount package, measuring 4.57 mm × 3.94 mm × 2.29 mm (L × W × H) with a 2.18 mm minimum cathode band width. Its low-profile design supports automated placement and fits tight board spaces. The package features matte tin-plated leads compatible with J-STD-002 soldering standards, and the P6SMB7.5AHM3_A/H variant meets UL 94 V-0 flammability requirements.

Does P6SMB7.5AHM3_A/H require a heatsink for standard operation?

No, P6SMB7.5AHM3_A/H does not require an external heatsink for transient suppression duty cycles (e.g., 0.01% for 10/1000 µs pulses). Its thermal resistance of 100 °C/W is specified for mounting on 0.2" × 0.2" copper pads per JEDEC standards, which provides sufficient heat dissipation for short-duration surges. Continuous power dissipation is limited to 5.0 W at 50 °C ambient, and the P6SMB7.5AHM3_A/H is not intended for sustained DC power handling.