Microchip Technology 1PMT5930A/TR7

Overview

1PMT5930A/TR7 from Microsemi is a 16 V, ±5% tolerance surface-mount Zener diode in the Powermite® package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 10 Ω dynamic impedance at 23.4 mA test current and thermal resistance of 30°C/W junction-to-TAB. It serves as a precision voltage reference or overvoltage clamp in power supply regulation and ESD-protected I/O circuits.

For engineers reviewing the 1PMT5930A/TR7 datasheet, 1PMT5930A/TR7 pinout, 1PMT5930A/TR7 application, or 1PMT5930A/TR7 equivalent, key selection criteria include its 16 V nominal Zener voltage, 3.0 W power handling in a DO-216 outline, 16 kV HBM ESD rating, low reverse leakage (≤1 µA at 12.2 V), and compatibility with automated SMT assembly.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable voltage across load variations and temperature shifts. Its Powermite® package features a full metallic bottom and integral locking tab that functions as both mechanical anchor and heat sink, enabling efficient thermal transfer from junction to PCB via TAB 1.

The device exhibits tight voltage regulation with 10 Ω dynamic impedance at I_ZT = 23.4 mA and maintains ≤1 µA reverse leakage up to 12.2 V, supporting reliable clamping in low-power sensing and protection circuits where stability under varying thermal conditions is critical.

Key Specifications

Pinout & Package

1PMT5930A/TR7 uses a 2-terminal DO-216 surface-mount package with cathode designated by TAB 1. The full metallic bottom and locking tab serve as the cathode terminal and primary thermal interface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5242BS and PLZ16B, the 1PMT5930A/TR7 delivers 6× and 6× higher power handling respectively, integrated thermal management via TAB 1, and certified 16 kV HBM robustness-making it the only option among the three qualified for sustained 3.0 W clamping in harsh-environment designs.

Availability

1PMT5930A/TR7 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, medical sensor modules, and consumer IoT battery protection circuits requiring stable component supply and long-term manufacturability.

Supply support for 1PMT5930A/TR7 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

Microsemi (now part of Microchip Technology) is a semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.

The Powermite® Zener diode family-including 1PMT5930A/TR7-is engineered for high-power surface-mount voltage regulation and transient suppression in space-constrained, thermally demanding applications where traditional through-hole Zeners fail.

FAQ

What is the Zener voltage tolerance for 1PMT5930A/TR7?

The 1PMT5930A/TR7 has a nominal Zener voltage of 16 V with a standard tolerance of ±5%, measured at 23.4 mA test current and TAB 1 temperature of 30°C. Tighter tolerances (±2% and ±1%) are available with suffixes C and D, but the /TR7 variant uses the standard ±5% grade.

How is thermal management implemented in the 1PMT5930A/TR7 package?

The 1PMT5930A/TR7 uses the Powermite® package with TAB 1 as the cathode and primary thermal conduction path. Its 30°C/W junction-to-TAB thermal resistance requires direct soldering of TAB 1 to a minimum 100 mm² copper area to achieve the full 3.0 W power rating at 60°C case temperature.

Is the 1PMT5930A/TR7 suitable for automated SMT assembly?

Yes, the 1PMT5930A/TR7 is fully compatible with automated surface-mount assembly. Its DO-216 outline, symmetric geometry, and EIA-481-compliant 7-inch tape-and-reel packaging (3,000 pieces) support high-speed pick-and-place at rates exceeding 25,000 units per hour without orientation or feeding issues.

What is the maximum reverse leakage current for 1PMT5930A/TR7?

The 1PMT5930A/TR7 specifies a maximum reverse leakage current of 1 µA at a reverse voltage of 12.2 V and ambient temperature of 30°C. This low leakage supports energy-efficient operation in battery-powered systems where standby current must remain below 1 µA.

Does the 1PMT5930A/TR7 have an industry-standard ESD rating?

Yes, the 1PMT5930A/TR7 is rated for >16 kV per the Human Body Model (HBM) per ANSI/ESDA/JEDEC JS-001. This certified ESD robustness eliminates the need for additional protection components on I/O lines in industrial and automotive applications subject to frequent electrostatic discharge events.