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Microchip Technology 1PMT5944AE3/TR13
- Part No.:
- 1PMT5944AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5944AE3/TR13.pdf
- Description:
- DIODE ZENER 62V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,542
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Product details
Overview
1PMT5944AE3/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 temperature of 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 compact power supply rails.
For engineers reviewing the 1PMT5944AE3/TR13 datasheet, 1PMT5944AE3/TR13 pinout, 1PMT5944AE3/TR13 application, or 1PMT5944AE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low knee impedance, and compatibility with automated SMT assembly per EIA-481 tape-and-reel packaging.
Technical Context
This device operates as a two-terminal voltage reference diode 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 dissipation when mounted on adequate copper area.
The Zener voltage is specified at 62 V ±5% (standard tolerance), measured at 6.0 mA test current (IZT) with case temperature (TL) held at 30°C; dynamic impedance (ZZT = 100 Ω) and knee impedance (ZZK = 1500 Ω at IZK = 0.25 mA) are defined per Microsemi Note 202 for voltage stability across operating current range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 62 V ±5% - precise clamping level for overvoltage protection or reference generation |
| Test Current (IZT) | 6.0 mA - nominal operating point where VZ and ZZT are guaranteed |
| Dynamic Impedance (ZZT) | 100 Ω - low AC impedance ensures minimal voltage deviation under varying load current |
| Max Reverse Leakage (IR) | 1500 µA at VR = 47.1 V - defines minimum holding voltage before breakdown onset |
| Power Dissipation (PD) | 3.0 W at TAB 1 = 60°C - thermal limit dictating PCB copper area and heatsinking requirements |
| Thermal Resistance (RθJ-TAB) | 30°C/W - quantifies temperature rise per watt dissipated from junction to mounting tab |
| ESD Rating (HBM) | >16 kV - robustness against handling-induced electrostatic discharge during assembly |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat sink locking tab; cathode identified by TAB 1; DO-216 outline; weight ≈ 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and electrical cathode connection; must be soldered to copper pour for thermal management |
| Lead 2 | Anode | Standard anode terminal; polarity confirmed by cathode marking on TAB 1 |
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 |
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term reliability and solder joint integrity |
| Integral heat sink locking tab | Provides mechanical anchoring and direct thermal conduction path to PCB copper, reducing RθJ-PCB |
| EIA-481 tape-and-reel packaging | Supports fully automated pick-and-place insertion at 3,000 pcs per 7-inch reel (TR13 denotes 13-inch reel option) |
Applications
| Industrial Power Supply Regulation | Automotive ECU Voltage Reference |
|---|---|
Use Scenario: Stabilizing 62 V auxiliary rail in programmable logic controller (PLC) backplane power distribution. IC Role / Device Role / Timing Role: Two-terminal shunt regulator maintaining precise output voltage despite input ripple and load transients. Use Value: Delivers 3.0 W regulation headroom with 100 Ω dynamic impedance, minimizing output deviation under ±100 mA load steps. | Use Scenario: Providing stable 62 V reference for high-side gate driver bias in 48 V mild-hybrid vehicle DC/DC converters. IC Role / Device Role / Timing Role: Zener clamp protecting driver IC inputs from transient overvoltage during load dump events. Use Value: >16 kV HBM ESD rating and 1500 µA IR at 47.1 V ensure reliable operation in harsh automotive environments. |
| Telecom Line Card Protection | Medical Imaging Power Rail Clamping |
Use Scenario: Overvoltage suppression on -48 V telecom line card power inputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response shunt clamp diverting surge energy to ground before downstream components fail. Use Value: Low knee impedance (1500 Ω at 0.25 mA) enables early conduction onset, limiting peak voltage to ≤65 V during fast transients. | Use Scenario: Precision voltage clamping in X-ray generator high-voltage supply feedback loops. IC Role / Device Role / Timing Role: Stable 62 V reference enabling accurate closed-loop regulation of kV-level outputs. Use Value: ±5% VZ tolerance and 30°C/W thermal resistance support <±0.5% long-term voltage drift under continuous 2.5 W operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5365B | Same 62 V nominal Zener voltage but TO-204AA (DO-41) through-hole package; 5 W rating; higher thermal resistance (~50°C/W) | Requires through-hole assembly and larger board area; better suited for prototyping or low-volume manual assembly | Select when legacy footprint compatibility or higher single-pulse surge capability is prioritized over SMT density |
| BZX84-C62 | SOT-23 package; 62 V ±5%; 300 mW rating; 10x lower power handling; 600 Ω typical ZZT | Limited to low-power signal-level regulation; unsuitable for >100 mW continuous dissipation | Select only for space-constrained signal conditioning, not power rail regulation or clamping |
Compared with 1N5365B and BZX84-C62, the 1PMT5944AE3/TR13 uniquely combines 3.0 W SMT power handling, 30°C/W thermal resistance, and EIA-481 tape-and-reel automation readiness-making it the only viable choice for high-reliability, high-density, production-scale 62 V shunt regulation.
Availability
1PMT5944AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, telecom line cards, and medical imaging systems requiring stable component supply with full traceability and lifecycle continuity.
Supply support for 1PMT5944AE3/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 for high-power-density voltage regulation in space-constrained, thermally demanding environments-emphasizing robust SMT manufacturability and stable parametric performance across extended temperature ranges.
FAQ
What is the Zener voltage tolerance for 1PMT5944AE3/TR13?
The 1PMT5944AE3/TR13 has a standard Zener voltage tolerance of ±5% at 62 V, measured at 6.0 mA test current with case temperature maintained at 30°C. Tighter tolerances (±2% and ±1%) are available with suffixes C and D respectively, but the E3 suffix indicates the standard ±5% version. This tolerance directly impacts regulation accuracy in precision reference applications.
How is thermal management implemented for 1PMT5944AE3/TR13?
Thermal management for 1PMT5944AE3/TR13 relies on its Powermite® package design: TAB 1 serves as both cathode and primary thermal path, with a specified junction-to-TAB thermal resistance of 30°C/W. Effective cooling requires soldering TAB 1 to a minimum 100 mm² copper pour; derating to 2.0 W is recommended above 60°C TAB temperature to maintain reliability.
Is 1PMT5944AE3/TR13 compatible with automated SMT assembly?
Yes, 1PMT5944AE3/TR13 is fully compatible with automated SMT assembly. It ships in EIA-481 compliant tape-and-reel format (TR13 denotes 13-inch reel containing 12,000 units), and its Powermite® package features a unique locking tab that prevents rotation during placement and enhances mechanical stability during reflow soldering.
What is the maximum reverse leakage current for 1PMT5944AE3/TR13?
The maximum reverse leakage current (IR) for 1PMT5944AE3/TR13 is 1500 µA at a reverse voltage (VR) of 47.1 V, tested at TL = 30°C. This parameter defines the device's off-state conduction threshold and is critical for ensuring minimal quiescent current in standby modes of power supply circuits using the 1PMT5944AE3/TR13 as a reference.
Does 1PMT5944AE3/TR13 have ESD protection built-in?
Yes, 1PMT5944AE3/TR13 has an ESD rating exceeding 16 kV per the Human Body Model (HBM), verified per ANSI/ESDA/JEDEC JS-001. This intrinsic robustness eliminates the need for external ESD protection components in most board-level designs and supports safe handling during automated assembly without additional grounding precautions beyond standard ESD protocols.
1PMT5944AE3/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:
- ±10%
- 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
1PMT5944AE3/TR13 FAQ
1.How can I place an order for 1PMT5944AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5944AE3/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 1PMT5944AE3/TR13 reliable?
The price and inventory of 1PMT5944AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5944AE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5944AE3/TR13?
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4.How is shipping managed for 1PMT5944AE3/TR13?
1PMT5944AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5944AE3/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 1PMT5944AE3/TR13?
For technical support, including 1PMT5944AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5944AE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5944AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5944AE3/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 1PMT5944AE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5944AE3/TR13?
All 1PMT5944AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5944AE3/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 1PMT5944AE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5944AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5944AE3/TR13 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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