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Microchip Technology 1PMT5938C/TR13
- Part No.:
- 1PMT5938C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5938C/TR13.pdf
- Description:
- DIODE ZENER 36V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,974
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Product details
Overview
1PMT5938C/TR13 from Microsemi is a 36 V, ±1% tolerance surface-mount Zener diode in the Powermite® package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 10.4 mA test current, 38 Ω dynamic impedance, and 1 µA max reverse leakage at 27.4 V. It serves as a precision voltage reference or overvoltage clamp in DC power rails and regulator feedback networks.
For engineers reviewing the 1PMT5938C/TR13 datasheet, 1PMT5938C/TR13 pinout, 1PMT5938C/TR13 application, or 1PMT5938C/TR13 equivalent, key selection criteria include its ±1% Zener voltage tolerance (suffix C), 3.0 W thermal capability with metallic-tab heat sinking, DO-216 mechanical outline, and ESD rating >16 kV HBM - critical for robust industrial power management designs.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage regulation across its specified test current range. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction from junction to PCB pad and eliminate solder flux entrapment during reflow.
The device exhibits low knee impedance (ZZK = 0.25 Ω) and maintains stable regulation under varying load conditions due to its 38 Ω dynamic impedance at 10.4 mA, with reverse leakage held to ≤1 µA at 27.4 V - enabling high-accuracy reference performance in low-power sensing and feedback circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V ±1% - enables precise voltage clamping or reference generation with minimal calibration overhead |
| Test Current (IZT) | 10.4 mA - defines the operating point where VZ is guaranteed and dynamic impedance is measured |
| Dynamic Impedance (ZZT) | 38 Ω - determines output voltage deviation under load transients; lower values improve regulation stability |
| Max Reverse Leakage (IR) | 1 µA at 27.4 V - ensures minimal quiescent current draw in standby or low-power monitoring circuits |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - supports high-energy transient suppression without external heatsinking |
| Thermal Resistance (RθJ-TAB1) | 30°C/W - quantifies junction-to-tab thermal path efficiency; enables accurate thermal design with PCB copper area |
| ESD Rating (HBM) | >16 kV - provides inherent robustness against handling and system-level electrostatic discharge events |
Pinout & Package
Package: Powermite® (DO-216AA), molded surface-mount package with full metallic bottom and integral locking tab acting as thermal interface. Cathode designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal and electrical connection point; must be soldered to PCB copper pour for optimal heat dissipation and voltage reference stability |
| Lead 2 | Anode | Standard anode terminal; connects to lower-potential node in reverse-biased Zener configuration |
Key Features
| Feature | Design Value |
|---|---|
| ±1% Zener voltage tolerance (suffix C) | Reduces need for post-production trimming in precision reference applications such as ADC voltage references |
| Integral heat sink locking tab | Provides direct thermal path from junction to PCB, lowering effective RθJA without added components |
| Full metallic bottom | Eliminates solder flux entrapment risk during reflow, improving long-term reliability and void-free assembly |
| ESD rating >16 kV HBM | Enables direct integration into unshielded industrial I/O modules without external ESD protection circuitry |
Applications
| Industrial Power Supply Feedback | Automotive Body Control Module Clamp |
|---|---|
Use Scenario: Regulating output voltage of isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Precision Zener reference establishing stable 36 V threshold for TL431-type shunt regulator control. Use Value: ±1% tolerance ensures consistent output regulation across temperature and line variations without software compensation. | Use Scenario: Protecting 12 V CAN transceiver inputs from load-dump transients up to 36 V. IC Role / Device Role / Timing Role: Fast-acting overvoltage clamp limiting input rail excursion during battery surge events. Use Value: 3.0 W power rating absorbs 100 ms load-dump energy without degradation, meeting ISO 16750-2 requirements. |
| Programmable Logic Controller Analog Input Protection | Medical Sensor Signal Conditioning Reference |
Use Scenario: Safeguarding 4–20 mA current-loop receiver inputs against wiring faults and ESD. IC Role / Device Role / Timing Role: Bidirectional transient suppressor combined with series resistor to limit fault current. Use Value: Metallic-tab thermal mass sustains repeated 1 kV EFT bursts without parameter shift, supporting IEC 61000-4-4 compliance. | Use Scenario: Providing stable 36 V reference for ratiometric bridge sensor excitation in portable diagnostic devices. IC Role / Device Role / Timing Role: Low-drift voltage reference source for analog front-end gain-setting resistors. Use Value: 1 µA max reverse leakage minimizes error contribution in microamp-level bias networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF36A (ON Semiconductor) | 36 V, ±5%, 1.0 W, SOD-123FL package, no metallic thermal tab | Limited to lower-power clamping; lacks integrated heat sink for sustained 3 W operation | Select when board space is constrained and peak power < 1 W suffices |
| BZX84-C36 (Nexperia) | 36 V, ±5%, 300 mW, SOT-23 package, standard plastic body | Not suitable for thermal cycling or high-reliability industrial environments due to lower power and no metal thermal interface | Select only for cost-sensitive consumer-grade signal-level referencing |
Compared with SMF36A and BZX84-C36, the 1PMT5938C/TR13 delivers 3× higher power handling and superior thermal reliability via its metallic-tab Powermite® construction - making it the only option among the three qualified for continuous 3 W operation in industrial power rails.
Availability
1PMT5938C/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, programmable logic controllers, and medical sensor interfaces requiring stable component supply with traceable sourcing and long-lifecycle support.
Supply support for 1PMT5938C/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 family was designed specifically for surface-mount power management applications demanding high wattage density, thermal robustness, and ESD resilience in harsh environments - not general-purpose signal-level regulation.
FAQ
What is the Zener voltage tolerance for 1PMT5938C/TR13?
The "C" suffix in 1PMT5938C/TR13 denotes ±1% Zener voltage tolerance at 10.4 mA test current and TAB 1 temperature of 30°C. This tighter tolerance reduces calibration burden in precision voltage reference circuits compared to standard ±5% variants like 1PMT5938B/TR13.
How is thermal management handled in the 1PMT5938C/TR13 package?
The 1PMT5938C/TR13 uses Microsemi's Powermite® package with a full metallic bottom and integral locking tab that serves as both cathode terminal and primary thermal interface. With a junction-to-TAB1 thermal resistance of 30°C/W, it requires direct soldering to a minimum 100 mm² copper pour for reliable 3.0 W operation.
Does 1PMT5938C/TR13 meet automotive qualification standards?
The 1PMT5938C/TR13 is not AEC-Q200 qualified, but its -55°C to +150°C junction/storage temperature range, >16 kV HBM ESD rating, and robust Powermite® construction make it suitable for non-safety-critical automotive body electronics such as lighting control and HVAC modules - pending customer-specific validation.
What is the maximum reverse leakage current for 1PMT5938C/TR13?
Per the MSC0995 datasheet, the 1PMT5938C/TR13 has a maximum reverse leakage current of 1 µA at 27.4 V (0.76 × VZ) and TL = 30°C. This low leakage supports high-impedance sensing nodes and battery-powered applications where standby current must remain below 10 µA.
Can 1PMT5938C/TR13 be used in place of through-hole Zener diodes like 1N5357B?
Yes - the 1PMT5938C/TR13 provides equivalent 36 V, 3.0 W Zener functionality in a surface-mount Powermite® package. Unlike the axial 1N5357B, it offers superior thermal performance via its metallic tab and eliminates flux entrapment risk, but requires compatible DO-216 footprint layout rather than radial lead spacing.
1PMT5938C/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):
- 36 V
- Tolerance:
- ±2%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 38 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 27.4 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
1PMT5938C/TR13 FAQ
1.How can I place an order for 1PMT5938C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5938C/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 1PMT5938C/TR13 reliable?
The price and inventory of 1PMT5938C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5938C/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5938C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5938C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5938C/TR13?
1PMT5938C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5938C/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 1PMT5938C/TR13?
For technical support, including 1PMT5938C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5938C/TR13 requirements.
6.How does Aetrix verify that 1PMT5938C/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5938C/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 1PMT5938C/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5938C/TR13?
All 1PMT5938C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5938C/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 1PMT5938C/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5938C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5938C/TR13 Tags
-
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
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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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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