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Microchip Technology 1PMT5947E3/TR13
- Part No.:
- 1PMT5947E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5947E3/TR13.pdf
- Description:
- DIODE ZENER 82V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,964
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Product details
Overview
1PMT5947E3/TR13 from Microsemi is a 82 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 160 Ω dynamic impedance at 4.6 mA test current and 2500 µA max reverse leakage at 62.2 V. It serves as a precision voltage reference or overvoltage clamp in DC power rails of industrial control modules.
For engineers reviewing the 1PMT5947E3/TR13 datasheet, 1PMT5947E3/TR13 pinout, 1PMT5947E3/TR13 application, or 1PMT5947E3/TR13 equivalent, key selection criteria include its 82 V nominal Zener voltage, 3.0 W thermal capability via metallic tab, DO-216 mechanical outline, ESD rating >16 kV HBM, and compatibility with automated SMT placement equipment.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage regulation across varying load currents. Its Powermite® package integrates a full metallic bottom (TAB 1) acting as both thermal path and cathode terminal, with thermal resistance of 30°C/W junction-to-tab and maximum junction temperature of +150°C.
Electrical behavior is defined at TL = 30°C with Zener voltage measured 20 seconds after applying DC test current; dynamic impedance is derived using 60 Hz RMS AC signal equal to 10% of IZT. Reverse leakage is specified at VR = 62.2 V, well below nominal VZ = 82 V, ensuring low standby power loss in clamping applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 82 V ±5% - precise DC reference point for voltage supervision circuits |
| Test Current (IZT) | 4.6 mA - operating point where VZ and ZZT are guaranteed |
| Dynamic Impedance (ZZT) | 160 Ω - small-signal AC resistance affecting regulation stability under ripple |
| Max Reverse Leakage (IR) | 2500 µA at 62.2 V - defines minimum clamping threshold and standby current loss |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - thermal limit set by metallic tab conduction, not ambient |
| Thermal Resistance | 30°C/W junction-to-TAB1 - enables direct PCB copper pour thermal management |
| ESD Rating | >16 kV HBM - robustness against handling and system-level electrostatic discharge |
Pinout & Package
Package: Powermite® (DO-216), molded surface-mount package with full metallic bottom (TAB 1) serving as cathode and primary thermal interface. Mounting orientation is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat sink and electrical cathode connection; must be soldered to thermal pad for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; used for circuit connection |
Key Features
| Feature | Design Value |
|---|---|
| Integral heat sink locking tab | Mechanical tab on TAB 1 enhances thermal transfer and prevents lift during reflow |
| Full metallic bottom | Eliminates solder flux entrapment risk and provides low-inductance cathode path |
| Automated insertion compatibility | DO-216 footprint and weight (0.016 g) validated for pick-and-place systems |
| Tight voltage tolerance option | ±2% (suffix C) or ±1% (suffix D) available for high-accuracy reference designs |
| High ESD immunity | >16 kV per Human Body Model reduces need for external protection in board-level ESD zones |
Applications
| Industrial Power Supply Monitoring | Telecom Line Card Protection |
|---|---|
Use Scenario: Monitoring +48 V DC distribution bus in programmable logic controller (PLC) backplanes. IC Role / Device Role / Timing Role: Zener diode configured as shunt voltage clamp to prevent overvoltage damage to downstream regulators. Use Value: 82 V VZ ensures safe margin above nominal 48 V rail while 3.0 W rating handles transient surges without thermal runaway. | Use Scenario: Overvoltage protection on Ethernet PHY interface power pins in carrier-grade line cards. IC Role / Device Role / Timing Role: Standby clamping device absorbing lightning-induced transients on 3.3 V or 5 V auxiliary rails. Use Value: 160 Ω ZZT and >16 kV HBM ESD rating provide fast, repeatable clamping without degradation after repeated events. |
| Automotive Body Control Module | Medical Diagnostic Equipment |
Use Scenario: Voltage reference for analog front-end ADC biasing in 12 V battery-supplied BCMs. IC Role / Device Role / Timing Role: Precision Zener providing stable 82 V reference for high-side current sense amplifier gain calibration. Use Value: ±5% VZ tolerance and 30°C/W thermal resistance enable drift-controlled calibration over -40°C to +125°C operating range. | Use Scenario: Overvoltage guard on isolated DC-DC converter outputs powering FPGA configuration circuitry. IC Role / Device Role / Timing Role: Fail-safe shunt regulator preventing latch-up during startup sequencing faults. Use Value: Metallic TAB 1 allows direct attachment to heatsinked ground plane, sustaining 3.0 W dissipation during sustained fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF82A (ON Semiconductor) | Same 82 V VZ, but 1.0 W rating and SOD-123 package; higher ZZK (400 Ω), lower IR (1 µA) | Limited to lower-power clamping; unsuitable for sustained 3.0 W transients | Select when board space is constrained and peak power < 1.0 W |
| BZX84-C82 (Diodes Inc.) | 82 V VZ, 300 mW rating, SOT-23; 40 Ω ZZT, 100 nA IR at 66 V | Only viable for signal-level reference; cannot replace 1PMT5947E3/TR13 in power rail clamping | Choose only for low-current bias/reference use, not power regulation |
Compared with SMF82A and BZX84-C82, the 1PMT5947E3/TR13 uniquely delivers 3.0 W power handling in a surface-mount Zener, enabling direct replacement of through-hole 1N5300-series devices without sacrificing thermal performance or reliability in industrial power systems.
Availability
1PMT5947E3/TR13 is available at Aetrix Electronics and suitable for industrial power supply monitoring, telecom line card protection, automotive body control modules, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.
Supply support for 1PMT5947E3/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 RF solutions for aerospace, defense, and industrial markets.
The Powermite® Zener series, including 1PMT5947E3/TR13, was designed for high-power-density surface-mount voltage regulation in harsh-environment power systems where thermal management and ESD robustness are critical.
FAQ
What is the Zener voltage tolerance for 1PMT5947E3/TR13?
The 1PMT5947E3/TR13 has a standard Zener voltage tolerance of ±5% at 82 V nominal, measured at 4.6 mA test current and TAB 1 temperature of 30°C. Tighter tolerances of ±2% (suffix C) and ±1% (suffix D) are available as factory-order options, but the base part number 1PMT5947E3/TR13 ships with ±5%.
How is thermal performance managed in the 1PMT5947E3/TR13 package?
The 1PMT5947E3/TR13 uses a Powermite® package with a full metallic bottom (TAB 1) that serves as both cathode and primary thermal path. Its specified thermal resistance is 30°C/W junction-to-TAB1, and full 3.0 W power dissipation is only achievable when TAB 1 is soldered to a sufficiently sized PCB copper pour or heatsink at ≤60°C.
Is the 1PMT5947E3/TR13 compatible with automated SMT assembly?
Yes, the 1PMT5947E3/TR13 is explicitly designed for compatibility with automatic insertion equipment. Its DO-216 mechanical outline, 0.016 g weight, and locking tab geometry meet EIA-481 tape-and-reel standards (7″ reel: 3,000 pcs; 13″ reel: 12,000 pcs), and it has been validated for use in high-speed pick-and-place systems.
What is the maximum reverse leakage current for 1PMT5947E3/TR13?
The maximum reverse leakage current for 1PMT5947E3/TR13 is 2500 µA at a reverse voltage of 62.2 V, measured at TL = 30°C. This value reflects worst-case leakage just below the nominal 82 V Zener voltage and is critical for determining standby power loss in clamping configurations.
Does the 1PMT5947E3/TR13 have ESD protection built-in?
Yes, the 1PMT5947E3/TR13 features an ESD rating exceeding 16 kV per the Human Body Model (HBM), as confirmed in the official Microsemi datasheet MSC0995. This intrinsic robustness eliminates the need for additional discrete ESD protection components in many board-level designs where the device interfaces with exposed connectors or long traces.
1PMT5947E3/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 82 V
- Tolerance:
- ±20%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 160 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 62.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-216AA
1PMT5947E3/TR13 FAQ
1.How can I place an order for 1PMT5947E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5947E3/TR13 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 1PMT5947E3/TR13 reliable?
The price and inventory of 1PMT5947E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5947E3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5947E3/TR13?
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4.How is shipping managed for 1PMT5947E3/TR13?
1PMT5947E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5947E3/TR13 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 1PMT5947E3/TR13?
For technical support, including 1PMT5947E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5947E3/TR13 requirements.
6.How does Aetrix verify that 1PMT5947E3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5947E3/TR13 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1PMT5947E3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5947E3/TR13?
All 1PMT5947E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5947E3/TR13, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 1PMT5947E3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5947E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5947E3/TR13 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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