Microchip Technology 1PMT5932B/TR7
- Part No.:
- 1PMT5932B/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5932B/TR7.pdf
- Description:
- DIODE ZENER 20V 3W DO216AA
- Quantity:
- Payment:

- Shipping:

Inventory:8,126
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Product details
Overview
1PMT5932B/TR7 from Microsemi is a 20 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 14 Ω dynamic impedance at 18.7 mA test current and thermal resistance of 30°C/W junction-to-tab - used for precision voltage regulation and overvoltage protection in compact DC power rails.
For engineers reviewing the 1PMT5932B/TR7 datasheet, 1PMT5932B/TR7 pinout, 1PMT5932B/TR7 application, or 1PMT5932B/TR7 equivalent, key selection criteria include Zener voltage accuracy, power derating behavior above 60°C, reverse leakage at 15.2 V, ESD robustness (>16 kV HBM), and compatibility with EIA-481 tape-and-reel automated assembly.
Technical Context
This Zener diode operates as a two-terminal voltage reference device, with cathode designated by TAB 1 and anode connected to the molded body. Its full metallic bottom ensures solder flux exclusion during reflow, while integral locking tabs provide mechanical retention and enhance thermal conduction to the PCB pad.
The device is characterized at TL = 30°C with IZT = 18.7 mA, VZ = 20.0 V, ZZT = 14 Ω, IZK = 0.25 mA, and IR ≤ 1 µA at VR = 15.2 V. Junction temperature range is –55°C to +150°C, supporting industrial and automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 20.0 V ±5% at IZT = 18.7 mA - defines stable regulation point for 18–22 V supply rails |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - requires thermal pad design with ≥30°C/W PCB conduction path |
| Dynamic Impedance | 14 Ω at 18.7 mA - limits output voltage variation under load current changes |
| Reverse Leakage | ≤1 µA at 15.2 V - ensures low standby power loss in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - mandates direct copper pour under tab for thermal management |
| ESD Rating | >16 kV per Human Body Model - supports handling without external protection in final assembly |
| Knee Current | 0.25 mA - minimum current to achieve stable Zener conduction near knee region |
Pinout & Package
Package: Powermite® (DO-216AA), surface-mount, molded plastic with full metallic bottom and integral heat-sink locking tabs; cathode identified by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and voltage reference node; must be soldered to thermal pad for rated power |
| Molded Body | Anode | Electrically connected to internal anode structure; mounted on standard SMT pad |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W power handling in footprint smaller than DO-41 |
| Full metallic bottom | Eliminates solder flux entrapment risk during assembly, improving long-term reliability of solder joints |
| Integral heat-sink locking tabs | Provides mechanical anchoring during reflow and enhances thermal transfer to PCB copper |
| ESD robustness | >16 kV HBM rating reduces need for external ESD protection in board-level designs |
| Tight voltage tolerance option | ±2% (suffix C) and ±1% (suffix D) available for precision reference applications |
Applications
| Industrial Power Supply Regulation | Automotive Body Control Module |
|---|---|
Use Scenario: Stabilizing 24 V nominal rail in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: Zener diode providing shunt voltage reference and overvoltage clamp for microcontroller supply monitoring circuitry. Use Value: Maintains regulation within ±5% across –40°C to +85°C ambient with <1 µA leakage at 15.2 V, minimizing quiescent current draw. | Use Scenario: Protecting CAN transceiver VCC input against load-dump transients up to 35 V. IC Role / Device Role / Timing Role: Clamping diode absorbing surge energy via 3.0 W power rating and low thermal resistance (30°C/W). Use Value: Absorbs transient energy without failure due to metallic tab thermal path and >16 kV HBM ESD immunity. |
| Medical Sensor Bias Network | Telecom Line Card Protection |
Use Scenario: Providing stable 20 V bias for analog front-end amplifiers in portable ultrasound probe electronics. IC Role / Device Role / Timing Role: Precision voltage reference enabling consistent gain calibration across temperature. Use Value: Delivers 20.0 V ±5% with 14 Ω dynamic impedance, reducing output drift under varying sensor load conditions. | Use Scenario: Overvoltage protection for 12 V auxiliary supplies feeding FPGA configuration circuitry. IC Role / Device Role / Timing Role: Shunt regulator clamping fault voltage before it reaches sensitive digital ICs. Use Value: Activates at 15.2 V (VR), limiting fault voltage with sub-µA leakage to preserve system sleep-mode current budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF20A (ON Semiconductor) | 20 V, 400 W peak pulse power, SOD-123FL package, 1.5 Ω dynamic impedance | Designed for transient suppression, not continuous regulation; lower Zener impedance but higher leakage (5 µA @ 15.2 V) | Select when surge clamping dominates over steady-state regulation accuracy |
| BZX84-C20 (Diodes Inc.) | 20 V, ±5%, 300 mW, SOT-23 package, 50 Ω dynamic impedance, 100 nA leakage @ 15.2 V | Lower power rating and higher impedance limit use to low-current bias networks only | Select for space-constrained, low-power biasing where thermal management is impractical |
Compared with SMF20A and BZX84-C20, the 1PMT5932B/TR7 uniquely balances 3.0 W continuous dissipation, 14 Ω impedance, and sub-µA leakage - making it suitable for regulated 20 V references requiring both stability and thermal resilience in industrial SMT layouts.
Availability
1PMT5932B/TR7 is available at Aetrix Electronics and suitable for industrial power supplies, automotive control units, medical sensor biasing, and telecom line card protection requiring stable component supply and traceable sourcing.
Supply support for 1PMT5932B/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, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line was engineered to deliver high-power surface-mount voltage regulation in miniature packages - targeting space-constrained, thermally demanding applications where traditional through-hole Zeners fall short.
FAQ
What is the Zener voltage tolerance for 1PMT5932B/TR7?
The 1PMT5932B/TR7 has a standard Zener voltage tolerance of ±5% at 20.0 V, measured at IZT = 18.7 mA and TAB 1 temperature of 30°C. Tighter tolerances of ±2% (suffix C) and ±1% (suffix D) are available upon request, but the base 1PMT5932B/TR7 part uses the ±5% specification.
How is thermal management implemented for 1PMT5932B/TR7 in PCB layout?
Thermal management for 1PMT5932B/TR7 relies on soldering TAB 1 directly to a copper thermal pad connected to internal ground or power planes. With a junction-to-tab thermal resistance of 30°C/W, the PCB must provide adequate copper area and vias to maintain TAB 1 ≤60°C under 3.0 W dissipation - otherwise power derating is required.
Does 1PMT5932B/TR7 have polarity marking, and how is cathode identified?
Yes, 1PMT5932B/TR7 identifies its cathode via TAB 1, which is the metalized surface-mount terminal. The molded body serves as the anode. No additional marking is present - orientation is defined solely by the physical tab location per DO-216AA mechanical drawing.
What is the maximum reverse leakage current for 1PMT5932B/TR7 at 15.2 V?
The maximum reverse leakage current for 1PMT5932B/TR7 is 1 µA at VR = 15.2 V and TL = 30°C. This value is specified in the Electrical Characteristics table and reflects worst-case leakage under standard test conditions - critical for low-power bias network design.
Is 1PMT5932B/TR7 compatible with EIA-481 tape-and-reel packaging for automated assembly?
Yes, 1PMT5932B/TR7 is supplied in EIA-481 compliant tape-and-reel format: 3,000 pieces per 7-inch reel and 12,000 pieces per 13-inch reel. Its Powermite® package geometry and locking tab design ensure reliable feeding and placement in high-speed pick-and-place equipment.
1PMT5932B/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):
- 20 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 14 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 15.2 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
1PMT5932B/TR7 FAQ
1.How can I place an order for 1PMT5932B/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5932B/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 1PMT5932B/TR7 reliable?
The price and inventory of 1PMT5932B/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5932B/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5932B/TR7?
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4.How is shipping managed for 1PMT5932B/TR7?
1PMT5932B/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5932B/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 1PMT5932B/TR7?
For technical support, including 1PMT5932B/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5932B/TR7 requirements.
6.How does Aetrix verify that 1PMT5932B/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5932B/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 1PMT5932B/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5932B/TR7?
All 1PMT5932B/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5932B/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 1PMT5932B/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5932B/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5932B/TR7 Tags

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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi

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SMAJ4744A-TP
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