Taiwan Semiconductor Corporation 1PGSMC5365

Overview

1PGSMC5365 from Taiwan Semiconductor is a surface-mount Zener diode with nominal zener voltage 36 V, 5 W power dissipation, and DO-214AB (SMC) package. It operates from −55 °C to +175 °C junction temperature and delivers 132 mA maximum DC zener current, serving as a precision voltage reference or overvoltage clamp in DC/DC converters.

For engineers reviewing the 1PGSMC5365 datasheet, 1PGSMC5365 pinout, 1PGSMC5365 application, or 1PGSMC5365 equivalent, key selection criteria include zener voltage tolerance (±5%), dynamic impedance (30 Ω at 11 mA), leakage current (0.5 μA at 27.4 V), thermal resistance (R_θJA = 55 °C/W), and RoHS/halogen-free compliance for industrial power designs.

Technical Context

This single-die Zener diode uses photo-glass passivated junction technology for stable breakdown characteristics and low inductance. Its DO-214AB package supports automated placement and meets J-STD-020 moisture sensitivity level 1 and JESD 201 class 2 whisker resistance.

Designed for steady-state clamping and voltage regulation, it exhibits 20 °C/W junction-to-lead thermal resistance when mounted on a 16 mm × 16 mm copper pad, enabling reliable operation up to 175 °C junction temperature under 5 W dissipation.

Key Specifications

Pinout & Package

DO-214AB (SMC) surface-mount package with cathode indicated by band; matte tin-plated leads compliant with J-STD-002 solderability and UL 94V-0 molding compound.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMBJ36A and 1N5365B, the 1PGSMC5365 provides optimal balance of precision regulation (±5% V_Z, 30 Ω Z_ZT), SMT manufacturability, and thermal performance (55 °C/W) for space-constrained industrial DC/DC designs.

Availability

1PGSMC5365 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 1PGSMC5365 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 device manufacturer headquartered in Hsinchu, Taiwan, specializing in power management, protection, and signal conditioning components.

The 1PGSMC series targets high-reliability surface-mount Zener regulation in industrial power conversion, emphasizing thermal robustness, automated assembly compatibility, and environmental compliance.

FAQ

What is the nominal zener voltage and tolerance of the 1PGSMC5365?

The 1PGSMC5365 has a nominal zener voltage of 36 V with a tolerance of ±5%, meaning the actual breakdown voltage falls between 34.2 V and 37.8 V at the specified test current of 11 mA. This tolerance is confirmed in the Electrical Specifications table of the official datasheet (Version D2102). The 1PGSMC5365 achieves this precision using photo-glass passivated junction technology, ensuring stability across temperature and operating life.

What is the maximum power dissipation and thermal derating behavior of the 1PGSMC5365?

The 1PGSMC5365 is rated for 5 W DC power dissipation at lead temperature (T_L) of 75 °C, with linear derating above that temperature. Its junction-to-ambient thermal resistance is 55 °C/W on a standard 16 mm × 16 mm copper pad PCB. This means the 1PGSMC5365 can sustain full 5 W only when ambient conditions and board layout maintain junction temperature ≤175 °C - the absolute maximum rated value. Derating curves are provided in Figure 1 of the datasheet.

Does the 1PGSMC5365 have RoHS and halogen-free compliance?

Yes, the 1PGSMC5365 is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the Features section of the datasheet. The molding compound meets UL 94V-0 flammability rating, and the matte tin-plated leads satisfy J-STD-002 solderability requirements. These certifications make the 1PGSMC5365 suitable for environmentally regulated industrial and consumer end equipment where substance restrictions apply.

What is the zener impedance and why does it matter for the 1PGSMC5365?

The 1PGSMC5365 exhibits a dynamic impedance (Z_ZT) of 30 Ω at 11 mA test current, measured under AC small-signal conditions. This value directly affects regulation accuracy: lower impedance yields smaller output voltage variation under changing load current. For example, a 100 mA load shift causes only ~3 V deviation - critical for maintaining tight voltage margins in DC/DC converter feedback paths where the 1PGSMC5365 serves as a reference.

What package type and marking code does the 1PGSMC5365 use?

The 1PGSMC5365 uses the DO-214AB (SMC) surface-mount package, with polarity indicated by a cathode band. Its marking code is "P365B", printed on the device body per the Marking Diagram in the datasheet. The package features matte tin-plated leads, complies with JESD 201 class 2 whisker testing, and is rated for moisture sensitivity level 1 (J-STD-020), eliminating pre-reflow baking requirements for the 1PGSMC5365.