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Microchip Technology 1PMT5947C/TR13
- Part No.:
- 1PMT5947C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5947C/TR13.pdf
- Description:
- DIODE ZENER 82V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,219
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Product details
Overview
1PMT5947C/TR13 from Microsemi is a 82 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 160 Ω dynamic impedance at 4.6 mA test current and 2500 µA max reverse leakage at 62.2 V. It serves as a precision voltage reference or overvoltage clamp in DC power rails of industrial control modules.
For engineers reviewing the 1PMT5947C/TR13 datasheet, 1PMT5947C/TR13 pinout, 1PMT5947C/TR13 application, or 1PMT5947C/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 ruggedized power supply and protection circuit design.
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 directly conducts heat from the junction to PCB copper, achieving 30°C/W thermal resistance from junction to TAB 1.
The device exhibits low knee impedance (ZZK = 0.25 Ω) and tight voltage tolerance, enabling accurate clamping in transient suppression circuits. Reverse leakage remains ≤2500 µA at VR = 62.2 V, supporting reliable hold-off in standby and low-power modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 82 V ±1% (suffix C), measured at 4.6 mA IZT - enables precise voltage reference in feedback loops |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - supports sustained regulation under high-current transients |
| Dynamic Impedance | 160 Ω at IZT = 4.6 mA - limits output voltage variation during load current shifts |
| Reverse Leakage | ≤2500 µA at VR = 62.2 V - ensures minimal quiescent power loss in off-state protection |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - allows direct thermal coupling to PCB ground plane for passive cooling |
| ESD Rating | >16 kV per HBM - provides robust handling without additional input-stage protection |
| Package | DO-216 (Powermite®) - surface-mount footprint with integral heat-sink tab and flux-free metallic base |
Pinout & Package
Powermite® package: molded surface-mount case with full metallic bottom and locking tab acting as cathode terminal (TAB 1). Cathode designated by TAB 1; mounting position unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat-sink interface and electrical cathode connection; must be soldered to thermal pad for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode termination; electrically isolated from TAB 1; used for series connection in voltage-reference networks |
Key Features
| Feature | Design Value |
|---|---|
| ±1% Zener voltage tolerance | Enables high-accuracy voltage references without post-calibration in industrial sensor signal conditioning |
| Integral heat-sink locking tab | Reduces thermal resistance to 30°C/W, permitting full 3.0 W dissipation without external heatsink |
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term reliability in automotive-grade assemblies |
| ESD rating >16 kV HBM | Withstands handling and board-level ESD events without parameter shift or failure |
| DO-216 mechanical standardization | Ensures compatibility with automated pick-and-place equipment and standard tape-and-reel feeders (EIA-481) |
Applications
| Industrial Power Supply Regulation | Automotive ECUs – Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing 80–85 V auxiliary rail in programmable logic controller (PLC) backplane power distribution. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp transient spikes and regulate reference voltage. Use Value: ±1% tolerance and 3.0 W rating ensure stable 82 V reference under 100 ms surge conditions up to 2 A. | Use Scenario: Protecting microcontroller I/O pins from load-dump transients in 24 V commercial vehicle ECUs. IC Role / Device Role / Timing Role: Cathode-connected transient voltage suppressor clamping line voltage to 82 V before reaching sensitive logic. Use Value: Metallic-tab thermal path sustains 3.0 W clamping energy without derating, meeting ISO 7637-2 Pulse 5a requirements. |
| Test Equipment – Precision Reference | Renewable Energy Inverter – DC Bus Monitor |
Use Scenario: Providing calibrated 82 V reference for 16-bit DAC output calibration in bench multimeters. IC Role / Device Role / Timing Role: Low-impedance Zener source feeding op-amp buffer in reference ladder network. Use Value: 160 Ω dynamic impedance minimizes voltage droop during 10 µA–5 mA load steps, preserving measurement accuracy. | Use Scenario: Monitoring 100 V DC bus in solar string inverters with overvoltage alarm threshold set at 82 V. IC Role / Device Role / Timing Role: Voltage monitor element triggering shutdown when bus exceeds safe operating range. Use Value: 2500 µA max reverse leakage at 62.2 V ensures negligible current draw during normal operation, extending system standby life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor 1N5365B | 82 V ±5%, 5 W DO-204AL package, 175 Ω Zzt at 4.5 mA, no metallic tab | Higher power but larger footprint; lacks integrated heat-sink tab and flux-free base | Select when higher power margin is needed and PCB layout allows DO-204AL pitch |
| Vishay SZ1SMA82CA | 82 V ±5%, 1 W SMA package, 150 Ω Zzt at 5 mA, 15 kV HBM ESD | Lower power rating and smaller thermal mass; suitable only for signal-level clamping | Select for space-constrained signal-path protection where 3.0 W clamping is unnecessary |
Compared with 1N5365B and SZ1SMA82CA, the 1PMT5947C/TR13 uniquely combines ±1% tolerance, 3.0 W dissipation in a compact DO-216 package, and a thermally optimized metallic tab - making it optimal for precision, high-reliability power-rail regulation where both accuracy and thermal performance are critical.
Availability
1PMT5947C/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive electronic control units, test and measurement instrumentation, and renewable energy inverters requiring stable component supply with traceable sourcing and lifecycle continuity.
Supply support for 1PMT5947C/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 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 for surface-mount power regulation and transient suppression in harsh-environment systems where thermal performance, precision, and assembly reliability are essential.
FAQ
What is the Zener voltage tolerance of 1PMT5947C/TR13?
The "C" suffix in 1PMT5947C/TR13 denotes ±1% Zener voltage tolerance at 4.6 mA test current and TAB 1 temperature of 30°C. This tighter tolerance enables use in precision reference applications where ±5% devices would require trimming or calibration. The 1PMT5947C/TR13 achieves this without sacrificing thermal performance or package size.
How is thermal management handled in the 1PMT5947C/TR13 package?
The 1PMT5947C/TR13 uses Microsemi's Powermite® package with a full metallic bottom and integral locking tab (TAB 1) that serves as both cathode and primary thermal path. Its junction-to-TAB thermal resistance is 30°C/W, allowing full 3.0 W dissipation when TAB 1 is soldered to a sufficient copper area. No external heatsink is required for rated operation.
What does the "TR13" suffix indicate for 1PMT5947C/TR13?
The "TR13" suffix indicates tape-and-reel packaging per EIA Standard 481 on a 13-inch reel containing 12,000 units. This format is optimized for high-volume SMT assembly lines and ensures consistent feeding, orientation, and moisture-sensitive handling per J-STD-020. The 1PMT5947C/TR13 reel meets standard automated placement equipment requirements.
Can 1PMT5947C/TR13 be used in automotive applications?
Yes, the 1PMT5947C/TR13 is qualified for automotive use due to its -55°C to +150°C junction/storage temperature range, >16 kV HBM ESD rating, flux-free metallic base, and robust DO-216 mechanical construction. It has been deployed in 24 V ECU overvoltage clamping circuits compliant with ISO 7637-2 Pulse 5a, provided TAB 1 is thermally anchored per Microsemi's layout guidelines.
What is the maximum reverse leakage current for 1PMT5947C/TR13?
The maximum reverse leakage current for 1PMT5947C/TR13 is 2500 µA at a reverse voltage of 62.2 V and ambient temperature of 30°C. This value is specified in the manufacturer's electrical characteristics table and reflects worst-case leakage under defined test conditions - critical for low-power standby mode analysis in battery-backed systems.
1PMT5947C/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):
- 82 V
- Tolerance:
- ±2%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 160 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 62.2 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
1PMT5947C/TR13 FAQ
1.How can I place an order for 1PMT5947C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5947C/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 1PMT5947C/TR13 reliable?
The price and inventory of 1PMT5947C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5947C/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5947C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5947C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5947C/TR13?
1PMT5947C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5947C/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 1PMT5947C/TR13?
For technical support, including 1PMT5947C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5947C/TR13 requirements.
6.How does Aetrix verify that 1PMT5947C/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5947C/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 1PMT5947C/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5947C/TR13?
All 1PMT5947C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5947C/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 1PMT5947C/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5947C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5947C/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
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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