Taiwan Semiconductor Corporation 1PGSMC5350

Overview

1PGSMC5350 from Taiwan Semiconductor is a surface-mount 13 V nominal Zener diode in DO-214AB (SMC) package, rated for 5 W power dissipation, 175 °C maximum junction temperature, and 1 mA leakage current at 9.9 V reverse voltage. It delivers stable voltage regulation in DC/DC converters and SMPS front-end clamping circuits.

For engineers reviewing the 1PGSMC5350 datasheet, 1PGSMC5350 pinout, 1PGSMC5350 application, or 1PGSMC5350 equivalent, key selection criteria include its 12.35–13.65 V zener tolerance (±5%), 100 Ω dynamic impedance at 100 mA test current, low-inductance SMC package, and JESD201 Class 2 whisker resistance for high-reliability industrial power designs.

Technical Context

This single-die Zener diode operates in reverse breakdown to maintain precise voltage reference or transient suppression. Its glass-passivated junction ensures stable long-term performance under thermal cycling and humidity exposure, while the matte tin-plated leads support automated reflow soldering per J-STD-002.

The device exhibits 20 °C/W junction-to-lead thermal resistance when mounted on a 16 mm × 16 mm copper pad, enabling reliable 5 W power handling up to 75 °C lead temperature with linear derating beyond. Its 1 mA leakage at VR = 9.9 V confirms sharp knee characteristics suitable for precision clamping.

Key Specifications

Pinout & Package

Package: DO-214AB (SMC), surface-mount, cathode indicated by band, matte tin-plated leads, UL 94V-0 molding compound, 0.210 g typical weight.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener diode applications.

Compared with SMBJ13A and 1N5350B, the 1PGSMC5350 offers tighter ±5% V_Z tolerance, lower 100 Ω dynamic impedance, and smaller DO-214AB footprint-making it optimal for space-constrained, precision-regulated power rails where both steady-state accuracy and transient robustness matter.

Availability

1PGSMC5350 is available at Aetrix Electronics and suitable for switching mode power supplies, on-board DC/DC converters, and lighting applications requiring stable component supply with full traceability and lifecycle management.

Supply support for 1PGSMC5350 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and consumer markets since 1979.

The 1PGSMC53xx series belongs to TSC's high-reliability surface-mount Zener diode product line, engineered specifically for voltage regulation and clamping in compact, thermally demanding power conversion systems.

FAQ

What is the nominal zener voltage and tolerance of the 1PGSMC5350?

The 1PGSMC5350 has a nominal zener voltage of 13 V with a tolerance of ±5%, corresponding to a guaranteed range of 12.35 V to 13.65 V at 100 mA test current (I_ZT). This tight tolerance is maintained across operating temperatures from –55 °C to +175 °C, making the 1PGSMC5350 suitable for precision regulation in industrial-grade power supplies where output stability is critical.

What package type does the 1PGSMC5350 use, and what are its mounting advantages?

The 1PGSMC5350 uses the DO-214AB (SMC) surface-mount package, featuring matte tin-plated leads compliant with J-STD-002 solderability standards and JESD 201 Class 2 whisker resistance. Its low-profile design supports automated placement, and the 0.210 g weight and UL 94V-0 molding compound simplify thermal and mechanical integration into dense PCB layouts for DC/DC modules and LED drivers.

How does the 1PGSMC5350 perform under thermal stress in high-power applications?

The 1PGSMC5350 sustains 5 W continuous power dissipation at a lead temperature of 75 °C, with linear derating above that point. Its 20 °C/W junction-to-lead thermal resistance-measured on a 16 mm × 16 mm Cu pad-ensures efficient heat transfer. Combined with a 175 °C maximum junction temperature, this allows the 1PGSMC5350 to operate reliably in enclosed power adapters and industrial SMPS without forced cooling.

Is the 1PGSMC5350 suitable for RoHS-compliant and halogen-free designs?

Yes, the 1PGSMC5350 is fully RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and the device carries J-STD-020 moisture sensitivity level 1-eliminating bake requirements prior to reflow. These attributes make the 1PGSMC5350 appropriate for export-ready, environmentally regulated products including medical peripherals and EU-market lighting systems.

What is the leakage current specification for the 1PGSMC5350, and why does it matter?

The 1PGSMC5350 specifies a maximum leakage current of 1 μA at 9.9 V reverse voltage (V_R). This low leakage ensures minimal quiescent power loss in standby modes and preserves regulation accuracy in high-impedance feedback networks-especially important in battery-backed lighting controls and energy-efficient adapters where microamp-level currents impact system efficiency and sleep-mode integrity.