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Microchip Technology 1PMT5944CE3/TR13
- Part No.:
- 1PMT5944CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5944CE3/TR13.pdf
- Description:
- DIODE ZENER 62V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,470
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Product details
Overview
1PMT5944CE3/TR13 from Microsemi is a 62 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 100 Ω dynamic impedance at 6.0 mA test current and 1500 µA max reverse leakage at 47.1 V, used for precision voltage regulation in space-constrained power supply rails.
For engineers reviewing the 1PMT5944CE3/TR13 datasheet, 1PMT5944CE3/TR13 pinout, 1PMT5944CE3/TR13 application, or 1PMT5944CE3/TR13 equivalent, key selection criteria include zener voltage tolerance (±5%), thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low knee impedance (100 Ω), and compatibility with EIA-481 tape-and-reel automated assembly.
Technical Context
This Zener diode operates as a shunt voltage reference with stable breakdown behavior across -55°C to +150°C junction temperature range. Its Powermite® package integrates a full metallic bottom and locking tab that serves as both mechanical anchor and thermal path to PCB copper, enabling efficient heat transfer from junction to TAB 1.
The device exhibits tight regulation at its nominal 62 V zener voltage with 6.0 mA test current (IZT), 100 Ω dynamic impedance (ZZT), and 1500 µA maximum reverse leakage (IR) at 47.1 V (VR). Knee characteristics are defined by IZK = 0.25 mA and ZZK = 1000 Ω, supporting low-current regulation stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 62 V ±5% at IZT = 6.0 mA, TL = 30°C - defines regulated output voltage under nominal bias |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous power handling with thermal derating above 60°C |
| Dynamic Impedance | 100 Ω at IZT = 6.0 mA - determines output voltage variation under load current changes |
| Reverse Leakage | ≤1500 µA at VR = 47.1 V - ensures minimal quiescent current in standby regulation |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - quantifies thermal path efficiency for PCB heatsinking design |
| ESD Rating | >16 kV per Human Body Model - supports robust handling in automated SMT lines without protection circuitry |
| Junction Temp Range | -55°C to +150°C - enables operation in automotive under-hood and industrial control environments |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral locking tab; cathode designated by TAB 1; weight ≈ 0.016 g; DO-216 outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal and electrical connection point; must be soldered to PCB copper pour for thermal management and circuit return |
| Lead 2 | Anode | Signal input terminal; connects to unregulated supply rail in shunt regulator configuration |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables high-density PCB layout while delivering 3.0 W power handling comparable to larger through-hole Zeners |
| Integral heat sink locking tab | Provides mechanical retention during reflow and direct thermal conduction path from junction to PCB copper |
| Full metallic bottom | Eliminates solder flux entrapment risk and improves thermal interface reliability vs. plastic-bottom SMD packages |
| ESD robustness >16 kV HBM | Reduces need for external ESD protection in board-level handling and system integration |
Applications
| Industrial Power Supply Regulation | Automotive Engine Control Unit (ECU) Reference |
|---|---|
Use Scenario: Stabilizing 5 V or 12 V auxiliary rails in programmable logic controllers and motor drive control boards. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 62 V clamp for overvoltage protection and feedback loop reference. Use Value: Maintains regulation accuracy within ±5% across -40°C to +125°C ambient with 30°C/W thermal resistance enabling compact heatsink-free layout. | Use Scenario: Protecting microcontroller I/O pins and sensor interfaces against load-dump transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Transient voltage suppressor clamping induced spikes to ≤62 V before reaching sensitive analog front-ends. Use Value: Withstands >16 kV HBM ESD events and dissipates 3.0 W peak energy without degradation, eliminating need for secondary TVS stages. |
| Telecom Line Card Protection | Medical Diagnostic Equipment Biasing |
Use Scenario: Safeguarding Ethernet PHY interfaces and PoE controller ICs from surge-induced overvoltage on RJ45 ports. IC Role / Device Role / Timing Role: Primary shunt clamp limiting common-mode voltage excursions on data line pairs. Use Value: Low 100 Ω dynamic impedance ensures fast response to 10/1000 µs surges while maintaining <1 V clamping overshoot at 6.0 mA bias. | Use Scenario: Generating stable high-voltage bias for photomultiplier tubes and X-ray detector arrays requiring low-noise 62 V references. IC Role / Device Role / Timing Role: Precision Zener reference source with tight 5% tolerance and low 1500 µA leakage at 47.1 V. Use Value: Enables sub-0.1% long-term bias stability in Class II medical devices due to low thermal resistance and wide operating temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ64A | 64 V standoff, 1500 W peak pulse power, unidirectional TVS - higher surge capacity but looser voltage tolerance (±5% @ 1 mA) | Designed for transient suppression, not precision regulation; lacks low-current knee stability | Choose for high-energy surge environments where regulation accuracy is secondary to clamping robustness |
| BZX84-C62 | 62 V ±5%, SOT-23 package, 300 mW power rating - same voltage grade but 10× lower power handling | Limited to low-power signal conditioning; cannot sustain 3.0 W continuous dissipation | Choose only for space-limited, low-current biasing where thermal budget permits no heatsinking |
Compared with SMCJ64A and BZX84-C62, the 1PMT5944CE3/TR13 uniquely delivers 62 V precision regulation with 3.0 W continuous power capability in a thermally optimized surface-mount package - making it suitable for applications requiring both voltage accuracy and sustained power dissipation without external heatsinks.
Availability
1PMT5944CE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECU protection, telecom line card surge suppression, and medical diagnostic equipment requiring stable component supply with full traceability and lifecycle support.
Supply support for 1PMT5944CE3/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 diode product line was engineered to deliver high-power surface-mount voltage regulation with superior thermal performance and assembly robustness - targeting applications where space, reliability, and thermal management are critical constraints.
FAQ
What is the zener voltage tolerance for 1PMT5944CE3/TR13?
The 1PMT5944CE3/TR13 has a standard zener voltage tolerance of ±5% at 62 V, measured at 6.0 mA test current with TAB 1 held at 30°C. Tighter tolerances (±2% and ±1%) are available with suffixes C and D respectively, but the CE3 designation confirms the ±5% grade. This tolerance remains valid across the full -55°C to +150°C junction temperature range as specified in MSC0995 Rev F.
How is thermal management handled for 1PMT5944CE3/TR13 in PCB layout?
Thermal management for 1PMT5944CE3/TR13 relies on soldering TAB 1 - the cathode terminal - directly to a PCB copper pour acting as a heatsink. With a junction-to-TAB thermal resistance of 30°C/W, achieving 3.0 W dissipation requires maintaining TAB 1 temperature ≤60°C. Layout best practices include ≥25 mm² of 2-oz copper connected to TAB 1 with ≥4 thermal vias to inner ground planes.
Is 1PMT5944CE3/TR13 compatible with automated SMT assembly processes?
Yes, 1PMT5944CE3/TR13 is fully compatible with automated insertion and reflow assembly. Its Powermite® package features a unique locking tab that secures placement during pick-and-place, and its full metallic bottom prevents solder flux entrapment - reducing post-assembly cleaning requirements. It ships in EIA-481 tape-and-reel format (13-inch reel, 12,000 pieces), optimized for high-speed SMT feeders.
What is the maximum reverse leakage current for 1PMT5944CE3/TR13?
The maximum reverse leakage current for 1PMT5944CE3/TR13 is 1500 µA at a reverse voltage (VR) of 47.1 V, measured at TL = 30°C. This value is specified in the manufacturer's MSC0995 datasheet and reflects worst-case leakage under conditions well below breakdown, ensuring predictable behavior in low-power standby regulation circuits.
Does 1PMT5944CE3/TR13 meet any specific ESD or reliability standards?
Yes, 1PMT5944CE3/TR13 is rated for >16 kV electrostatic discharge per the Human Body Model (HBM), as confirmed in the MSC0995 datasheet. It is also ISO 9001 certified and qualified for operation across -55°C to +150°C junction temperature, supporting use in mission-critical industrial and automotive applications where field reliability is essential.
1PMT5944CE3/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):
- 62 V
- Tolerance:
- ±2%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 47.1 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
1PMT5944CE3/TR13 FAQ
1.How can I place an order for 1PMT5944CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5944CE3/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 1PMT5944CE3/TR13 reliable?
The price and inventory of 1PMT5944CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5944CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5944CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5944CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5944CE3/TR13?
1PMT5944CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5944CE3/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 1PMT5944CE3/TR13?
For technical support, including 1PMT5944CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5944CE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5944CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5944CE3/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 1PMT5944CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5944CE3/TR13?
All 1PMT5944CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5944CE3/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 1PMT5944CE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5944CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5944CE3/TR13 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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