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Microchip Technology 1PMT5954CE3/TR7
- Part No.:
- 1PMT5954CE3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5954CE3/TR7.pdf
- Description:
- DIODE ZENER 160V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,431
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Product details
Overview
1PMT5954CE3/TR7 from Microsemi is a 160 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 700 Ω dynamic impedance at 2.3 mA test current and 121.6 mA maximum Zener current - used for precision voltage regulation and overvoltage protection in high-reliability power supply rails.
For engineers reviewing the 1PMT5954CE3/TR7 datasheet, 1PMT5954CE3/TR7 pinout, 1PMT5954CE3/TR7 application, or 1PMT5954CE3/TR7 equivalent, key selection criteria include Zener voltage tolerance (±5%), thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low reverse leakage (<1 µA at 121.6 V), 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, designed for stable regulation under DC bias conditions. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and eliminate solder flux entrapment during reflow.
The device exhibits tight voltage control across temperature (–55°C to +150°C junction/storage range) and maintains low reverse leakage (≤1 µA at VR = 121.6 V), with dynamic impedance measured using 60 Hz RMS AC superimposed on IZT per Note 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 160 V ±5% at IZT = 2.3 mA, TL = 30°C - defines nominal regulation point with production tolerance band |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous DC power handling with defined thermal boundary condition |
| Dynamic Impedance (ZZT) | 700 Ω at IZT = 2.3 mA - indicates small-signal AC resistance affecting regulation stability under varying load |
| Max Zener Current (IZM) | 121.6 mA - derived from 3.0 W / 160 V, limiting safe DC operating current under worst-case voltage |
| Thermal Resistance | 30°C/W junction-to-TAB1 - quantifies thermal path efficiency from die to mounting tab for thermal design |
| ESD Rating | >16 kV per Human Body Model - ensures robustness against electrostatic discharge during handling and assembly |
| Reverse Leakage (IR) | ≤1 µA at VR = 121.6 V - confirms minimal off-state conduction below breakdown threshold |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat sink locking tab; cathode identified by TAB 1; weight ≈ 0.016 g; DO-216 outline per mechanical drawing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat-sinking terminal and negative output connection; must be thermally anchored to PCB copper for rated power dissipation |
| Lead 2 | Anode | Positive input terminal; electrically isolated from TAB 1; requires standard SMT pad layout per DO-216 footprint |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W power handling comparable to larger through-hole Zeners |
| Full metallic bottom | Prevents solder flux entrapment during assembly, improving long-term reliability and solder joint integrity |
| Integral heat sink locking tab | Provides mechanical retention and direct thermal path from junction to PCB, reducing thermal resistance to 30°C/W |
| ESD robustness | Withstands >16 kV HBM, eliminating need for external ESD protection in many board-level implementations |
Applications
| Industrial Power Supply Regulation | Automotive ECUs |
|---|---|
Use Scenario: Stabilizing reference voltage for feedback loops in isolated DC-DC converters rated up to 200 V input. IC Role / Device Role / Timing Role: Two-terminal shunt regulator maintaining precise 160 V rail despite line/load variation. Use Value: Enables compact, high-efficiency power supplies without external op-amp compensation due to tight 5% VZ tolerance and low ZZT. | Use Scenario: Overvoltage clamping on 12 V battery-supplied microcontroller power inputs exposed to load-dump transients. IC Role / Device Role / Timing Role: Transient voltage suppressor absorbing surge energy above 121.6 V while limiting peak clamped voltage. Use Value: Survives >16 kV ESD events and dissipates 3.0 W continuously, meeting AEC-Q101 stress requirements without derating. |
| Medical Imaging Power Rails | Test & Measurement Equipment |
Use Scenario: Providing stable bias voltage for high-voltage photomultiplier tube (PMT) anode chains operating near 150 V. IC Role / Device Role / Timing Role: Precision Zener reference ensuring consistent gain calibration across PMT channels. Use Value: Maintains <1 µA reverse leakage at 121.6 V, minimizing dark-current error in low-noise analog front-ends. | Use Scenario: Calibrating voltage references in portable multimeters requiring traceable 160 V Zener standards. IC Role / Device Role / Timing Role: Primary voltage reference element in self-contained calibration modules. Use Value: ±5% initial tolerance and 30°C/W thermal resistance allow predictable drift compensation in field-deployed instruments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5954B | Through-hole DO-41 package; same 160 V/±5% spec but higher thermal resistance (50°C/W) and no metallic bottom | Requires manual insertion or wave soldering; unsuitable for high-density SMT layouts | Select when legacy through-hole assembly or lower-cost procurement outweighs thermal performance needs |
| SMBJ160A | TVS diode with 160 V standoff voltage and 600 W peak pulse power; not a precision Zener (±10% tolerance, higher leakage) | Designed for transient suppression only; cannot replace 1PMT5954CE3/TR7 in regulation circuits | Choose only for surge protection where DC regulation accuracy is not required |
Compared with 1N5954B and SMBJ160A, the 1PMT5954CE3/TR7 uniquely combines SMT compatibility, 3.0 W continuous dissipation, 30°C/W thermal resistance, and ±5% Zener tolerance - making it the sole option for space-constrained, thermally demanding, precision-regulation use cases.
Availability
1PMT5954CE3/TR7 is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive ECU protection, medical imaging bias rails, and test equipment calibration requiring stable component supply and full traceability.
Supply support for 1PMT5954CE3/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 U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal components for aerospace, defense, and industrial markets.
The Powermite® Zener series, including 1PMT5954CE3/TR7, was engineered for high-power-density voltage regulation in harsh-environment applications where thermal management, ESD immunity, and automated assembly are critical.
FAQ
What is the Zener voltage tolerance for 1PMT5954CE3/TR7?
The 1PMT5954CE3/TR7 has a standard Zener voltage tolerance of ±5% at 160 V, as specified in Note 1 of the MSC0995 datasheet. This tolerance applies under test conditions of IZT = 2.3 mA and TAB temperature = 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D, but the CE3/TR7 variant uses the standard ±5% grade.
How is thermal performance characterized for 1PMT5954CE3/TR7?
The 1PMT5954CE3/TR7 has a junction-to-TAB1 thermal resistance of 30°C/W, meaning each watt dissipated raises the junction temperature 30°C above the TAB temperature. This value assumes proper thermal anchoring of TAB 1 to PCB copper. The device is rated for 3.0 W at TAB = 60°C, implying a maximum junction temperature of 150°C under that condition.
Is 1PMT5954CE3/TR7 compatible with automated SMT assembly?
Yes, the 1PMT5954CE3/TR7 is fully compatible with automated surface-mount insertion equipment. Its Powermite® package features a unique locking tab and full metallic bottom that prevent rotation and flux entrapment during reflow. It ships in EIA-481 compliant tape-and-reel format (7″ reel, 3,000 pieces), optimized for pick-and-place machines.
What is the maximum reverse leakage current for 1PMT5954CE3/TR7?
The maximum reverse leakage current (IR) for 1PMT5954CE3/TR7 is 1 µA at a reverse voltage (VR) of 121.6 V, as specified in the Electrical Characteristics table. This low leakage supports high-impedance bias networks and precision regulation applications where off-state conduction must be minimized.
Does 1PMT5954CE3/TR7 meet automotive qualification standards?
The 1PMT5954CE3/TR7 is not explicitly qualified to AEC-Q101 in its base specification, but its construction - including >16 kV HBM ESD rating, –55°C to +150°C operating range, and robust Powermite® package - enables successful qualification in automotive ECU designs. Customers must perform system-level validation per their specific application requirements.
1PMT5954CE3/TR7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 160 V
- Tolerance:
- ±2%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 700 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 121.6 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
1PMT5954CE3/TR7 FAQ
1.How can I place an order for 1PMT5954CE3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5954CE3/TR7 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 1PMT5954CE3/TR7 reliable?
The price and inventory of 1PMT5954CE3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5954CE3/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5954CE3/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5954CE3/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5954CE3/TR7?
1PMT5954CE3/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5954CE3/TR7 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 1PMT5954CE3/TR7?
For technical support, including 1PMT5954CE3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5954CE3/TR7 requirements.
6.How does Aetrix verify that 1PMT5954CE3/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5954CE3/TR7 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 1PMT5954CE3/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5954CE3/TR7?
All 1PMT5954CE3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5954CE3/TR7, 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 1PMT5954CE3/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5954CE3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5954CE3/TR7 Tags
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