Microchip Technology 1PMT5932CE3/TR7
- Part No.:
- 1PMT5932CE3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5932CE3/TR7.pdf
- Description:
- DIODE ZENER 20V 3W DO216AA
- Quantity:
- Payment:

- Shipping:

Inventory:7,857
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Product details
Overview
1PMT5932CE3/TR7 from Microsemi is a 20 V, ±5% tolerance Zener diode in the Powermite® surface-mount 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-TAB1. It serves as a precision voltage reference or overvoltage clamp in power supply regulation and ESD-protected signal lines.
For engineers reviewing the 1PMT5932CE3/TR7 datasheet, 1PMT5932CE3/TR7 pinout, 1PMT5932CE3/TR7 application, or 1PMT5932CE3/TR7 equivalent, key selection criteria include zener voltage tolerance (±5%), 3.0 W power handling in DO-216 outline, ESD rating >16 kV HBM, low reverse leakage (≤1 µA at 15.2 V), and compatibility with automated SMT placement equipment.
Technical Context
This device operates as a silicon planar Zener diode with sharp knee characteristics, designed for stable voltage regulation under varying load and temperature conditions. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and eliminate solder flux entrapment during reflow assembly.
The 1PMT5932CE3/TR7 exhibits tight voltage control across its operating range: zener voltage is specified at 20 V ±5% measured at IZT = 18.7 mA with TL = 30°C, and maintains low dynamic impedance (14 Ω) and low knee impedance (≤650 Ω at IZK = 0.25 mA), enabling reliable clamping in transient suppression circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 20 V ±5% at IZT = 18.7 mA - defines nominal regulation point with production-grade tolerance |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables high-power voltage clamping without external heatsink |
| Dynamic Impedance | 14 Ω at IZT - ensures minimal output voltage variation under load current changes |
| Thermal Resistance | 30°C/W junction-to-TAB1 - supports predictable thermal management via PCB copper pad |
| ESD Rating | >16 kV per Human Body Model - provides robust protection for downstream ICs in I/O interfaces |
| Reverse Leakage | ≤1 µA at 15.2 V - guarantees low standby power loss in bias and reference circuits |
| Knee Current | 0.25 mA - allows stable regulation even at very low bias currents |
Pinout & Package
Package: Powermite® (DO-216AA), molded surface-mount package with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and electrical cathode connection; must be soldered to thermal pad for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal; mounted opposite TAB 1 in DO-216 outline |
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 SMA/SMB |
| Integral heat-sink locking tab | Direct thermal path from junction to PCB copper, reducing thermal resistance to 30°C/W |
| Full metallic bottom | Eliminates solder flux entrapment during assembly, improving long-term reliability and void-free solder joints |
| ESD rating >16 kV HBM | Provides intrinsic protection for sensitive analog and digital inputs without external TVS stacking |
| Tight zener voltage tolerance | ±5% standard (C suffix = ±2%, D = ±1%) - supports precise voltage reference design without post-calibration |
Applications
| Power Supply Voltage Reference | ESD-Protected Signal Line Clamp |
|---|---|
Use Scenario: Regulating feedback voltage in isolated DC-DC converters with 24 V input rails. IC Role / Device Role / Timing Role: Zener reference diode providing stable 20 V reference for optocoupler-based feedback loop. Use Value: Maintains ±5% regulation accuracy across -55°C to +150°C ambient, supporting industrial-grade converter stability. | Use Scenario: Protecting RS-485 transceiver data lines against ESD events in factory automation systems. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) clamping diode shunting transients above 15.2 V to ground. Use Value: >16 kV HBM rating eliminates need for additional TVS devices, reducing BOM count and board space. |
| Low-Power Sensor Biasing | Overvoltage Protection in Battery Monitoring |
Use Scenario: Providing stable 20 V bias to high-impedance pressure sensor bridges in IoT edge nodes. IC Role / Device Role / Timing Role: Precision Zener supplying regulated excitation voltage with minimal quiescent current draw. Use Value: 0.25 mA knee current enables regulation down to ultra-low bias levels, extending battery life. | Use Scenario: Clamping cell voltage monitoring inputs in 48 V Li-ion battery packs during charge/discharge transients. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp limiting sensed voltage to ≤20 V ±5% before ADC input. Use Value: 14 Ω dynamic impedance ensures minimal voltage overshoot during 100 ns transients, preserving measurement integrity. |
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, 200 W peak pulse power, 1.0 A IPP, DO-219AB package, 1.5 Ω dynamic impedance | Optimized for high-energy surge clamping, not precision DC regulation | Select when transient energy exceeds 3.0 W continuous; not suitable for low-current reference use |
| BZX84-C20 (Nexperia) | 20 V, ±5%, 350 mW, SOT-23 package, 50 Ω dynamic impedance, 100 nA leakage | Lower power, higher impedance, smaller footprint - suited for signal-level biasing only | Select for space-constrained, low-power bias networks where 3.0 W capability is unnecessary |
Compared with SMF20A and BZX84-C20, the 1PMT5932CE3/TR7 uniquely balances 3.0 W continuous power, 14 Ω impedance, and >16 kV ESD in a thermally optimized surface-mount package - making it optimal for industrial power reference and robust clamping where both precision and ruggedness are required.
Availability
1PMT5932CE3/TR7 is available at Aetrix Electronics and suitable for industrial power supplies, factory automation interfaces, battery management systems, and IoT sensor modules requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1PMT5932CE3/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 developed to deliver high-power, surface-mount voltage regulation in compact packages with superior thermal performance and ESD robustness for harsh-environment electronics.
FAQ
What is the zener voltage tolerance for 1PMT5932CE3/TR7?
The 1PMT5932CE3/TR7 has a standard zener voltage tolerance of ±5% at 20 V, measured at IZT = 18.7 mA and TL = 30°C. Tighter tolerances (±2% and ±1%) are available with C and D suffixes respectively, but the CE3/TR7 variant specifies ±5% as documented in MSC0995 Rev F.
How is thermal management handled in the 1PMT5932CE3/TR7 package?
The 1PMT5932CE3/TR7 uses the Powermite® package with a full metallic bottom and integral locking tab that serves as the primary thermal path. Its junction-to-TAB1 thermal resistance is 30°C/W, meaning TAB 1 must be soldered to a sufficient copper area on the PCB to achieve the rated 3.0 W power dissipation at 60°C case temperature.
Is the 1PMT5932CE3/TR7 suitable for ESD protection in communication interfaces?
Yes, the 1PMT5932CE3/TR7 is rated for >16 kV per Human Body Model (HBM), making it suitable for primary or secondary ESD protection in RS-232, RS-485, and CAN bus interfaces. Its low leakage (≤1 µA) and 20 V clamping threshold allow integration directly at connector-level I/O pins without interfering with signal integrity.
What is the maximum reverse current specification for 1PMT5932CE3/TR7?
The maximum reverse current (IR) for 1PMT5932CE3/TR7 is 1 µA at a reverse voltage (VR) of 15.2 V, as specified in the Electrical Characteristics table of MSC0995. This low leakage supports stable operation in high-impedance bias and reference circuits where current draw must be minimized.
Does the 1PMT5932CE3/TR7 require special PCB layout considerations?
Yes - the 1PMT5932CE3/TR7 requires a dedicated thermal pad connected to TAB 1, sized per Microsemi's recommended mounting pad dimensions for DO-216. The full metallic bottom must make full contact with the pad to achieve 30°C/W thermal resistance; insufficient copper area or poor solder wetting will derate power handling significantly below 3.0 W.
1PMT5932CE3/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:
- ±2%
- 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
1PMT5932CE3/TR7 FAQ
1.How can I place an order for 1PMT5932CE3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5932CE3/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 1PMT5932CE3/TR7 reliable?
The price and inventory of 1PMT5932CE3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5932CE3/TR7 is usually 5 days.
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1PMT5932CE3/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5932CE3/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 1PMT5932CE3/TR7?
For technical support, including 1PMT5932CE3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5932CE3/TR7 requirements.
6.How does Aetrix verify that 1PMT5932CE3/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5932CE3/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 1PMT5932CE3/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5932CE3/TR7?
All 1PMT5932CE3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5932CE3/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 1PMT5932CE3/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5932CE3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5932CE3/TR7 Tags

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