Taiwan Semiconductor Corporation P6SMB130A

Overview

P6SMB130A from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode designed for overvoltage protection in DC power lines and signal paths. It features a standoff voltage of 111.0 V, breakdown voltage range of 124–137 V at 1.0 mA test current, clamping voltage of 179 V at 3.5 A peak pulse current, and operates across –55°C to +150°C junction temperature. It is used in switching mode power supplies to protect downstream regulators from load dump or inductive switching transients.

For engineers reviewing the P6SMB130A datasheet, P6SMB130A pinout, P6SMB130A application, or P6SMB130A equivalent, key selection criteria include its 111.0 V working voltage, 179 V clamping performance under 10/1000 µs surge, DO-214AA (SMB) package compatibility with automated SMT assembly, and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive electronics.

Technical Context

The P6SMB130A employs a glass-passivated silicon junction optimized for fast transient response (<1.0 ps rise time from 0 V to V_BR min) and low leakage (<1 µA at 111.0 V). Its thermal design supports 10°C/W junction-to-case resistance and 55°C/W junction-to-ambient resistance, enabling reliable operation at up to 150°C junction temperature under pulsed conditions.

This unidirectional TVS device operates in avalanche breakdown mode during overvoltage events, delivering precise clamping with a temperature coefficient of V_BR at 0.107%/°C. It meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements for the DO-214AA molding compound.

Key Specifications

Pinout & Package

Package: DO-214AA (SMB), surface-mount, single-diode configuration with cathode band marking. Matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMBJ130A and 1.5SMC130A, the P6SMB130A offers optimal balance of compact DO-214AA footprint, precise 111.0 V standoff, and 179 V clamping - making it ideal for space-constrained automotive and industrial power modules where thermal management and board area are critical.

Availability

P6SMB130A is available at Aetrix Electronics and suitable for switching mode power supplies, automotive body control modules, and industrial motor drive control boards requiring stable component supply with full traceability and lifecycle support.

Supply support for P6SMB130A 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, including TVS diodes, rectifiers, and MOSFETs, with ISO/TS 16949 and IATF 16949 certification.

The P6SMB130A belongs to TSC's P6SMB series of 600 W surface-mount TVS diodes engineered for robust transient immunity in automotive, industrial, and consumer power electronics - emphasizing low leakage, tight V_BR tolerance, and AEC-Q101 readiness.

FAQ

What is the maximum clamping voltage of the P6SMB130A under standard 10/1000 µs surge conditions?

The P6SMB130A has a maximum clamping voltage (V_C) of 179 V when subjected to a 3.5 A peak pulse current with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that downstream circuitry remains below destructive voltage thresholds during standardized surge events. The P6SMB130A maintains this clamping performance across its full operating temperature range.

Is the P6SMB130A suitable for bidirectional transient protection?

No, the P6SMB130A is a unidirectional TVS diode intended for DC line protection with defined anode-cathode polarity. For bidirectional applications, Taiwan Semiconductor specifies the P6SMB130CA variant (with 'CA' suffix), which provides symmetrical clamping in both directions. Using the P6SMB130A in AC or bipolar signal paths may result in forward conduction failure or inadequate protection.

Does the P6SMB130A comply with automotive transient immunity standards?

Yes, the P6SMB130A meets ISO 7637-2 requirements for Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnection), and Pulse 3a/3b (capacitive coupling), making it suitable for 12 V automotive subsystems. Its 111.0 V standoff and 179 V clamping align with typical battery rail protections, though full load-dump (Pulse 5a) validation requires system-level testing per ISO 16750-2 due to energy limitations of the 600 W rating.

What is the thermal resistance profile of the P6SMB130A in its DO-214AA package?

The P6SMB130A exhibits a junction-to-case thermal resistance (R_θJC) of 10°C/W and a junction-to-ambient resistance (R_θJA) of 55°C/W under standard JEDEC test conditions. These values assume proper PCB copper pour and reflow profile adherence; actual R_θJA improves significantly with ≥1 in² of 2-oz copper connected to both terminals, enabling sustained operation near its 150°C T_JMAX.

How does the P6SMB130A differ from the P6SMB130 (non-A) variant?

The P6SMB130A offers tighter breakdown voltage tolerance (124–137 V) versus the P6SMB130 (117–143 V), resulting in more consistent clamping behavior and reduced risk of premature conduction. Both share identical package, power rating, and thermal specs, but the 'A' suffix denotes enhanced V_BR uniformity - critical for designs requiring precise overvoltage threshold control. The P6SMB130A marking code is NGJ.