Microchip Technology 1PMT5952E3/TR13

Overview

1PMT5952E3/TR13 from Microsemi is a 130 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 450 Ω dynamic impedance at 2.9 mA test current and thermal resistance of 30°C/W junction-to-TAB1 - used for precision voltage regulation and overvoltage protection in industrial power supplies.

For engineers reviewing the 1PMT5952E3/TR13 datasheet, 1PMT5952E3/TR13 pinout, 1PMT5952E3/TR13 application, or 1PMT5952E3/TR13 equivalent, key selection criteria include zener voltage accuracy (±5%), low reverse leakage (<1 µA at 104 V), ESD robustness (>16 kV HBM), thermal performance (30°C/W), and compatibility with automated SMT assembly per EIA-481 tape-and-reel packaging.

Technical Context

This Zener diode operates as a two-terminal voltage reference device with cathode designated by TAB 1, requiring no external biasing circuitry. Its full metallic bottom and integral heat sink locking tab enable direct thermal conduction to the PCB copper pour, supporting stable regulation under sustained 3.0 W power dissipation.

The device exhibits tight knee characteristics (IZK = 0.25 mA, ZZK = 5000 Ω) and low reverse leakage (IR ≤ 1 µA at VR = 104 V), enabling reliable clamping in low-current standby modes. Voltage measurement is specified at TL = 30°C with 20-second stabilization after DC current application per Note 1.

Key Specifications

Pinout & Package

Package: Powermite® surface-mount molded package with full metallic bottom and integral heat sink locking tab; cathode identified by TAB 1; mounting position unrestricted; weight ≈ 0.016 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 1N5355B and BZX85C130, the 1PMT5952E3/TR13 delivers 3× higher power capability in a surface-mount form factor, enables direct PCB thermal management via its metallic bottom, and provides documented >16 kV ESD immunity - making it uniquely suited for high-reliability, high-power SMT voltage regulation.

Availability

1PMT5952E3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, telecom line protection, automated test equipment, and motor drive control systems requiring stable component supply with full traceability and lifecycle support.

Supply support for 1PMT5952E3/TR13 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 U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.

The Powermite® Zener diode product line was engineered to deliver high-power surface-mount voltage regulation with superior thermal performance and automated assembly compatibility - targeting space-constrained, thermally demanding applications.

FAQ

What is the zener voltage tolerance for 1PMT5952E3/TR13?

The 1PMT5952E3/TR13 has a nominal zener voltage of 130 V with a standard tolerance of ±5%, as confirmed in the MSC0995.PDF datasheet. Tighter tolerances (±2% and ±1%) are available with suffixes C and D respectively, but the E3/TR13 variant uses the standard ±5% grade. Voltage is measured at IZT = 2.9 mA with TAB 1 held at 30°C for 20 seconds prior to reading.

How is thermal management implemented in the 1PMT5952E3/TR13 package?

The 1PMT5952E3/TR13 uses a Powermite® package with a full metallic bottom and integral heat sink locking tab that directly interfaces with the PCB copper pour. Its specified thermal resistance is 30°C/W junction-to-TAB1, enabling 3.0 W continuous power dissipation when TAB 1 is maintained at 60°C - requiring adequate copper area and thermal vias beneath TAB 1 for optimal performance.

Is the 1PMT5952E3/TR13 compatible with automated SMT assembly processes?

Yes, the 1PMT5952E3/TR13 is fully compatible with automated insertion and reflow processes. It ships in EIA-481 standard tape-and-reel format (7-inch reel, 3,000 pieces), features a molded surface-mount package with unrestricted mounting orientation, and includes design features like a full metallic bottom to prevent solder flux entrapment - all verified in Microsemi's official documentation.

What is the reverse leakage current specification for 1PMT5952E3/TR13?

The reverse leakage current (IR) for 1PMT5952E3/TR13 is specified as ≤1 µA at VR = 104 V, per the MSC0995.PDF datasheet. This low leakage ensures minimal standby power loss in voltage reference and overvoltage clamp applications, particularly important in battery-backed or energy-efficient systems where quiescent current must be tightly controlled.

Does the 1PMT5952E3/TR13 have an ESD rating, and if so, what is it?

Yes, the 1PMT5952E3/TR13 has an ESD rating of >16 kV per the Human Body Model (HBM), as stated in the "FEATURES" section of the MSC0995.PDF datasheet. This high-level ESD immunity supports robust handling during automated manufacturing, board assembly, and field service without requiring additional protection circuitry in most end-use environments.