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Microchip Technology 1PMT5931AE3/TR13
- Part No.:
- 1PMT5931AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5931AE3/TR13.pdf
- Description:
- DIODE ZENER 18V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,581
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Product details
Overview
1PMT5931AE3/TR13 from Microsemi is a 18 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 13.7 mA maximum Zener current (IZM), 12 Ω dynamic impedance (ZZT) at 20.8 mA test current (IZT), and 650 µA max reverse leakage (IR) at 13.7 V. It serves as a precision voltage reference or overvoltage clamp in compact DC power rails.
For engineers reviewing the 1PMT5931AE3/TR13 datasheet, 1PMT5931AE3/TR13 pinout, 1PMT5931AE3/TR13 application, or 1PMT5931AE3/TR13 equivalent, key selection criteria include its DO-216 mechanical outline, cathode identification via TAB 1, thermal resistance of 30°C/W (junction-to-TAB), ESD rating >16 kV HBM, and compatibility with automated SMT insertion equipment.
Technical Context
This Zener diode operates in reverse breakdown mode to regulate or clamp voltage at 18 V nominal with tight ±5% initial tolerance. 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 without flux entrapment.
The device exhibits low dynamic impedance (12 Ω at IZT = 20.8 mA) and controlled knee behavior (IZK = 12 mA, ZZK = 0.25 Ω), supporting stable regulation under varying load conditions. Reverse leakage remains ≤650 µA at VR = 13.7 V, ensuring minimal standby power loss in battery-sensitive designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 18 V ±5% at IZT = 20.8 mA, TL = 30°C - defines nominal regulation point with production-grade accuracy |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous thermal load under defined board-level cooling |
| Dynamic Impedance (ZZT) | 12 Ω at IZT = 20.8 mA - determines output voltage variation under small-signal current changes |
| Max Reverse Leakage (IR) | 650 µA at VR = 13.7 V - limits quiescent current in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB - quantifies temperature rise per watt dissipated into PCB copper pad |
| ESD Rating | >16 kV per Human Body Model - ensures robustness during handling and board assembly |
Pinout & Package
Package: Powermite® (DO-216AA), molded surface-mount case with full metallic bottom and integral heat-sink locking tab; cathode identified by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal and electrical connection point; must be soldered to copper pour for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; used for circuit return path |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term solder joint reliability |
| Integral heat-sink locking tab | Provides mechanical retention and direct thermal conduction path to PCB copper |
| DO-216AA mechanical outline | Enables compatibility with standard SMT pick-and-place nozzles and tape-and-reel feeders (EIA-481) |
| 16 kV HBM ESD rating | Reduces need for external ESD protection in front-end voltage-reference circuits |
Applications
| DC Power Rail Clamping | Low-Power Voltage Reference |
|---|---|
Use Scenario: Protection of 15–24 V industrial sensor inputs against transient overvoltage events. IC Role / Device Role / Timing Role: Zener clamping element placed between signal line and ground to limit excursion beyond 18 V. Use Value: With 13.7 V reverse standoff and 18 V breakdown, it provides 4.3 V margin before conduction, absorbing surge energy within its 3.0 W rating. | Use Scenario: Stable bias voltage generation for op-amp comparators in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Shunt reference providing fixed 18 V node referenced to ground, powered via series resistor. Use Value: Low 650 µA leakage at 13.7 V and 12 Ω dynamic impedance ensure <0.5% output variation across 1–10 mA load range. |
| Automated Assembly Interface | Thermally Constrained Regulation |
Use Scenario: High-volume manufacturing of telecom power modules requiring zero-defect SMT placement. IC Role / Device Role / Timing Role: Surface-mount Zener selected for compatibility with automatic insertion equipment and EIA-481 tape-and-reel packaging. Use Value: Locking tab and symmetric footprint enable reliable vacuum nozzle pickup and placement repeatability ≥99.99%. | Use Scenario: Regulation in sealed enclosures where ambient temperature exceeds 85°C and airflow is restricted. IC Role / Device Role / Timing Role: Primary voltage clamp dissipating up to 1.8 W continuously while maintaining 18 V regulation. Use Value: 30°C/W junction-to-TAB thermal resistance allows safe operation at 1.8 W with only 54°C rise above PCB temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5350B | Same 18 V nominal, but in DO-204AL (DO-41) through-hole package; 5 W rating; higher thermal resistance (~65°C/W) | Requires PCB through-holes and wave soldering; unsuitable for fully SMT designs | Select when higher power headroom and legacy through-hole assembly are required |
| BZX84-C18 | 18 V ±5%, SOT-23 package; 300 mW rating; 15 Ω dynamic impedance; 100 nA leakage at 14 V | Limited to low-power signal-level clamping; cannot sustain 3.0 W dissipation | Select for space-constrained logic-level protection where power stress is negligible |
Compared with 1N5350B and BZX84-C18, the 1PMT5931AE3/TR13 uniquely delivers 3.0 W surface-mount capability in a thermally optimized Powermite® package-enabling high-reliability clamping in compact, automated SMT systems without sacrificing power handling or thermal performance.
Availability
1PMT5931AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, and telecom DC-DC converter protection requiring stable component supply, consistent parametric performance, and long-term manufacturability.
Supply support for 1PMT5931AE3/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 family-including 1PMT5931AE3/TR13-is engineered for high-power-density surface-mount voltage regulation and transient suppression in thermally demanding, high-volume production environments.
FAQ
What is the Zener voltage tolerance for 1PMT5931AE3/TR13?
The 1PMT5931AE3/TR13 has a standard Zener voltage tolerance of ±5% at 18 V nominal, measured at IZT = 20.8 mA and TAB temperature = 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D respectively, but the base part number 1PMT5931AE3/TR13 specifies ±5%.
How is the cathode identified on 1PMT5931AE3/TR13?
The cathode of the 1PMT5931AE3/TR13 is designated by TAB 1-the metallic tab on the package bottom-which must be connected to the more positive potential in reverse-bias operation. This is confirmed in the mechanical specifications section of the MSC0995 datasheet and applies directly to the 1PMT5931AE3/TR13 device.
What is the maximum power dissipation for 1PMT5931AE3/TR13 and under what conditions?
The 1PMT5931AE3/TR13 is rated for 3.0 W DC power dissipation when TAB 1 is maintained at 60°C. This rating assumes proper thermal coupling to a PCB copper area and accounts for voltage derating at elevated temperatures. Exceeding this condition risks junction overheating and parametric shift.
Does 1PMT5931AE3/TR13 meet any ESD standards?
Yes, the 1PMT5931AE3/TR13 has an ESD rating exceeding 16 kV per the Human Body Model (HBM), as specified in the FEATURES section of the MSC0995 datasheet. This rating reflects built-in process-level protection and supports robust handling during automated assembly and field operation.
What tape-and-reel standard does 1PMT5931AE3/TR13 use?
The 1PMT5931AE3/TR13 is supplied in EIA Standard 481 tape-and-reel format, with 3,000 pieces per 7-inch reel and 12,000 pieces per 13-inch reel. The "TR13" suffix explicitly denotes the 13-inch reel packaging configuration, confirming compliance with industry-standard SMT feeder requirements.
1PMT5931AE3/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):
- 18 V
- Tolerance:
- ±10%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 12 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 13.7 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
1PMT5931AE3/TR13 FAQ
1.How can I place an order for 1PMT5931AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5931AE3/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 1PMT5931AE3/TR13 reliable?
The price and inventory of 1PMT5931AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5931AE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5931AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5931AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5931AE3/TR13?
1PMT5931AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5931AE3/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 1PMT5931AE3/TR13?
For technical support, including 1PMT5931AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5931AE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5931AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5931AE3/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 1PMT5931AE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5931AE3/TR13?
All 1PMT5931AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5931AE3/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 1PMT5931AE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5931AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5931AE3/TR13 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
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BZX84C3V3LT1G
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