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Microchip Technology 1PMT5944E3/TR13
- Part No.:
- 1PMT5944E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5944E3/TR13.pdf
- Description:
- DIODE ZENER 62V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,491
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Product details
Overview
1PMT5944E3/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. It serves as a precision voltage reference or overvoltage clamp in DC power rails of industrial control modules.
For engineers reviewing the 1PMT5944E3/TR13 datasheet, 1PMT5944E3/TR13 pinout, 1PMT5944E3/TR13 application, or 1PMT5944E3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low knee impedance, and compatibility with automated SMT assembly using EIA-481 tape-and-reel packaging.
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 and locking tab that functions as both mechanical anchor and thermal path to PCB copper, enabling efficient heat transfer from junction to TAB 1.
The device exhibits tight voltage regulation with 62 V nominal Zener voltage measured at 6.0 mA (IZT), 100 Ω dynamic impedance (ZZT), and 1500 µA maximum reverse leakage (IR) at 47.1 V (VR). Thermal resistance is specified as 30°C/W from junction to TAB 1, supporting reliable operation up to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 62 V ±5% at IZT = 6.0 mA - defines regulated output voltage under nominal bias |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous DC power handling with thermal derating |
| Dynamic Impedance | 100 Ω at IZT = 6.0 mA - determines voltage deviation under small-signal AC load variations |
| Reverse Leakage | ≤1500 µA at VR = 47.1 V - limits standby current in clamping or reference circuits |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - quantifies thermal path efficiency to PCB copper pad |
| ESD Rating | >16 kV per Human Body Model - ensures robustness during handling and board assembly |
| Junction Temp Range | −55°C to +150°C - supports operation in extended industrial and automotive under-hood 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; mounting position unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat sink terminal and electrical cathode connection; must be soldered to copper pour for thermal and electrical performance |
| Lead 2 | Anode | Standard anode connection; reverse-biased during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Integral heat sink locking tab | Mechanically anchors device during reflow while conducting heat directly from junction to PCB copper |
| Full metallic bottom | Eliminates solder flux entrapment risk and improves thermal conduction vs. plastic-bottom SMD packages |
| Automated insertion compatibility | Designed for pick-and-place and reflow processes per EIA-481 tape-and-reel standard (7″/13″ reels) |
| Low knee impedance | 100 Ω at 6.0 mA enables stable regulation even near minimum operating current |
Applications
| Industrial Power Supply Monitoring | Automotive Engine Control Unit (ECU) Clamping |
|---|---|
Use Scenario: Monitoring 12 V–24 V battery-derived rails in programmable logic controllers with transient suppression. IC Role / Device Role / Timing Role: Zener clamping diode protecting ADC input or microcontroller reset line from overvoltage events. Use Value: 62 V standoff voltage prevents false triggering while 3.0 W rating absorbs 100 ms transients without failure. | Use Scenario: Overvoltage protection on 5 V sensor supply lines in engine management systems exposed to load dump. IC Role / Device Role / Timing Role: Standby shunt regulator and transient voltage suppressor on regulated auxiliary supplies. Use Value: >16 kV HBM ESD rating ensures survival during manufacturing; 30°C/W thermal resistance sustains reliability at under-hood temperatures. |
| Telecom Line Card Reference | Medical Imaging Power Sequencing |
Use Scenario: Providing stable 62 V reference for DAC-controlled biasing of RF front-end amplifiers in base station line cards. IC Role / Device Role / Timing Role: Precision voltage reference source with low dynamic impedance for analog signal chain stability. Use Value: 100 Ω ZZT minimizes voltage perturbation from DAC output loading, ensuring <±0.1% reference drift. | Use Scenario: Sequencing enable threshold detection for high-voltage X-ray generator subsystems requiring strict power-up order. IC Role / Device Role / Timing Role: Voltage threshold detector triggering sequencing logic when main supply reaches 62 V ±5%. Use Value: ±5% tolerance and tight knee characteristics ensure repeatable turn-on timing across temperature and unit variance. |
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 DO-204AL (DO-41) through-hole package; 5 W rating; higher thermal resistance (~65°C/W) | Requires through-hole assembly and larger board area; unsuitable for high-density SMT layouts | Select only if legacy through-hole design or higher power margin is required without thermal constraints |
| BZX84-C62 | SOT-23 package; 62 V ±5%; 300 mW power rating; 200 Ω dynamic impedance; no metallic thermal tab | Limited to low-power signal-level clamping; cannot handle sustained 3 W dissipation or high-energy transients | Choose only for space-constrained signal conditioning where power stress is negligible |
Compared with 1N5365B and BZX84-C62, the 1PMT5944E3/TR13 uniquely combines 3.0 W SMT power handling, 30°C/W thermal resistance via TAB 1, and EIA-481 tape-and-reel compatibility-making it the only option for automated, thermally demanding Zener regulation in industrial power modules.
Availability
1PMT5944E3/TR13 is available at Aetrix Electronics and suitable for industrial power supply monitoring, automotive ECU clamping, telecom line card reference, and medical imaging power sequencing requiring stable component supply and long-term lifecycle support.
Supply support for 1PMT5944E3/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 designed to deliver high-power surface-mount voltage regulation with superior thermal performance and automated assembly compatibility-targeting compact, rugged power management in harsh-environment systems.
FAQ
What is the Zener voltage tolerance for 1PMT5944E3/TR13?
The 1PMT5944E3/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%, ±1%) are available with suffixes C and D, but the E3 suffix indicates the standard ±5% version. This tolerance directly impacts voltage accuracy in reference and clamping applications.
How is thermal management handled in the 1PMT5944E3/TR13 package?
The 1PMT5944E3/TR13 uses the Powermite® package with TAB 1 as the cathode and primary thermal path. Its 30°C/W junction-to-TAB thermal resistance requires direct soldering of TAB 1 to a copper pour for effective heat dissipation. The full metallic bottom and locking tab enhance conduction, enabling 3.0 W operation at TAB 1 = 60°C without external heatsinks.
Is 1PMT5944E3/TR13 compatible with automated SMT assembly?
Yes, the 1PMT5944E3/TR13 is fully compatible with automated SMT assembly. It ships in EIA-481 compliant tape-and-reel format (7″ reel: 3,000 pcs; 13″ reel: 12,000 pcs) and features a locking tab that prevents rotation during placement. Its surface-mount footprint and mechanical robustness support high-yield reflow processing in industrial production lines.
What is the maximum reverse leakage current for 1PMT5944E3/TR13?
The maximum reverse leakage current for 1PMT5944E3/TR13 is 1500 µA at 47.1 V (VR), measured at TL = 30°C. This parameter defines the upper bound of standby current in clamping configurations and affects power budgeting in low-quiescent designs. Leakage increases with temperature and voltage stress, so system-level validation at worst-case conditions is recommended.
Does 1PMT5944E3/TR13 meet any ESD immunity standards?
Yes, the 1PMT5944E3/TR13 is rated for >16 kV per the Human Body Model (HBM) ESD standard. This high immunity level ensures robust handling during PCB assembly and protects downstream circuitry from electrostatic discharge events in field-deployed equipment. No external ESD protection is needed solely for handling-related stress.
1PMT5944E3/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:
- ±20%
- 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
1PMT5944E3/TR13 FAQ
1.How can I place an order for 1PMT5944E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5944E3/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 1PMT5944E3/TR13 reliable?
The price and inventory of 1PMT5944E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5944E3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5944E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5944E3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5944E3/TR13?
1PMT5944E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5944E3/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 1PMT5944E3/TR13?
For technical support, including 1PMT5944E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5944E3/TR13 requirements.
6.How does Aetrix verify that 1PMT5944E3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5944E3/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 1PMT5944E3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5944E3/TR13?
All 1PMT5944E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5944E3/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 1PMT5944E3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5944E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5944E3/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
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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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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