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Microchip Technology 1PMT5955C/TR13
- Part No.:
- 1PMT5955C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5955C/TR13.pdf
- Description:
- DIODE ZENER 180V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,391
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Product details
Overview
1PMT5955C/TR13 from Microsemi is a 180 V, ±1% tolerance Zener diode in Powermite® surface-mount package with 3.0 W power dissipation, 2.1 mA test current, and 900 Ω dynamic impedance at 20°C case temperature - used for precision voltage regulation and overvoltage protection in industrial power supplies.
For engineers reviewing the 1PMT5955C/TR13 datasheet, 1PMT5955C/TR13 pinout, 1PMT5955C/TR13 application, or 1PMT5955C/TR13 equivalent, key selection criteria include zener voltage tolerance (±1%), thermal resistance (30°C/W), ESD rating (>16 kV HBM), reverse leakage (≤7000 µA at 144 V), and compatibility with automated SMT assembly.
Technical Context
This Zener diode operates as a two-terminal voltage reference device with cathode designated by TAB 1, requiring no external biasing circuitry. Its full metallic bottom and integral heat sink locking tab enable direct thermal conduction to PCB copper, supporting stable 3.0 W dissipation when TAB 1 is maintained at ≤60°C.
The device exhibits tight voltage regulation under DC conditions: VZ = 180 V measured at IZT = 2.1 mA with TL = 30°C, and maintains low reverse leakage (IR ≤ 7000 µA at VR = 144 V) across its -55°C to +150°C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 180 V ±1% - precise clamping threshold for overvoltage protection circuits |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables high-energy transient suppression without heatsink |
| Test Current | 2.1 mA - defined operating point for voltage calibration and impedance measurement |
| Dynamic Impedance | 900 Ω at 2.1 mA - determines regulation sensitivity to load current changes |
| Thermal Resistance | 30°C/W junction-to-TAB1 - quantifies thermal path efficiency for PCB layout planning |
| ESD Rating | >16 kV HBM - ensures robustness during handling and board assembly |
| Reverse Leakage | ≤7000 µA at 144 V - defines maximum off-state power loss in standby mode |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat sink locking tab; cathode identified by TAB 1; weight ≈ 0.016 g; DO-216 outline.
| 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; mounted opposite TAB 1 per DO-216 mechanical drawing |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W capability traditionally found in larger through-hole packages |
| Full metallic bottom | Eliminates solder flux entrapment risk during reflow, improving long-term reliability of solder joints |
| Integral heat sink locking tab | Provides mechanical anchoring and direct thermal path from junction to PCB, reducing thermal resistance to 30°C/W |
| ±1% zener voltage tolerance | Supports high-accuracy voltage reference applications without post-manufacturing trimming |
| ESD rating >16 kV HBM | Reduces need for upstream ESD protection components in sensitive input stages |
Applications
| Industrial Power Supply Regulation | Automotive ECU Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing feedback reference in isolated DC-DC converters operating up to 200 V input. IC Role / Device Role / Timing Role: Two-terminal shunt voltage regulator providing precise 180 V clamp point. Use Value: Maintains output regulation accuracy within ±1% despite line/load transients due to low dynamic impedance (900 Ω) and stable thermal path. | Use Scenario: Protecting microcontroller I/O pins and sensor interfaces from load-dump transients in 24 V vehicle systems. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp absorbing energy bursts up to 3.0 W. Use Value: Survives repeated 12 V/24 V load-dump events (ISO 7637-2 Pulse 5a) without degradation thanks to robust thermal design and >16 kV HBM rating. |
| Telecom Line Card Protection | Medical Imaging HV Bias Reference |
Use Scenario: Safeguarding Ethernet PHY transceivers and PoE controllers against lightning-induced surges on RJ45 lines. IC Role / Device Role / Timing Role: Primary shunt clamp limiting common-mode voltage to 180 V during surge events. Use Value: Prevents latch-up and permanent damage in PHY ICs by clamping within 20 ns while dissipating up to 3.0 W peak power. | Use Scenario: Providing stable bias voltage for photomultiplier tube (PMT) anode chains in X-ray CT detectors. IC Role / Device Role / Timing Role: Precision voltage reference maintaining 180 V ±1% across temperature (-40°C to +85°C ambient). Use Value: Enables consistent PMT gain calibration over time and temperature, critical for image contrast fidelity and dose accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5377B | Same 180 V nominal, ±5% tolerance, 5 W rating in DO-201AD package; higher power but larger footprint and no metallic bottom | Requires heatsinking for sustained 3 W operation; less suitable for dense SMT layouts | Choose 1N5377B only if higher power headroom and through-hole compatibility are required |
| BZX85C180 | 180 V, ±5% tolerance, 1.3 W rating in DO-41; lower power, no integrated heat sink tab, 500 Ω ZZT | Not rated for continuous 3.0 W operation; limited to low-duty-cycle clamping | Select BZX85C180 only for cost-sensitive, low-power signal-level regulation where thermal performance is secondary |
Compared with 1N5377B and BZX85C180, the 1PMT5955C/TR13 delivers superior thermal management via its metallic bottom and locking tab, enabling full 3.0 W dissipation in compact SMT form - making it optimal for space-constrained, high-reliability industrial and medical applications demanding ±1% voltage accuracy.
Availability
1PMT5955C/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, telecom line cards, and medical imaging systems requiring stable component supply with guaranteed traceability and long-term lifecycle support.
Supply support for 1PMT5955C/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 and mixed-signal ICs, discrete devices, and radiation-hardened components for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line was designed specifically to deliver high-power, precision voltage regulation in ultra-compact surface-mount packages for mission-critical power management and protection circuits.
FAQ
What is the zener voltage tolerance for 1PMT5955C/TR13?
The "C" suffix in 1PMT5955C/TR13 denotes ±1% zener voltage tolerance at 180 V, verified at IZT = 2.1 mA and TL = 30°C. This tighter tolerance supports precision regulation where standard ±5% parts would introduce unacceptable error margins in feedback loops or reference circuits.
How is thermal management achieved in the 1PMT5955C/TR13 package?
The 1PMT5955C/TR13 uses a Powermite® package with a full metallic bottom and integral heat sink locking tab that directly conducts heat from the silicon junction to the PCB copper. Its specified thermal resistance of 30°C/W junction-to-TAB1 enables reliable 3.0 W operation when TAB 1 is held at ≤60°C - eliminating need for external heatsinks in most designs.
Can 1PMT5955C/TR13 be used in automated SMT assembly?
Yes, the 1PMT5955C/TR13 is explicitly designed for compatibility with automatic insertion equipment and standard SMT reflow processes. Its Powermite® package features a flat, symmetric profile and metallic bottom that prevents solder flux entrapment - ensuring high first-pass yield and long-term joint integrity in high-volume manufacturing.
What is the maximum reverse leakage current for 1PMT5955C/TR13?
The maximum reverse leakage current for 1PMT5955C/TR13 is 7000 µA at VR = 144 V (80% of nominal zener voltage), measured at TL = 30°C. This value defines the upper bound of off-state power loss and must be accounted for in low-power standby designs where quiescent current is critical.
Does 1PMT5955C/TR13 meet any ESD standards?
Yes, the 1PMT5955C/TR13 has an ESD rating exceeding 16 kV per the Human Body Model (HBM), as confirmed in the MSC0995 datasheet. This high immunity level reduces susceptibility to damage during handling, PCB assembly, and field operation - particularly valuable in environments with uncontrolled static discharge risks.
1PMT5955C/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):
- 180 V
- Tolerance:
- ±2%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 800 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 136.8 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
1PMT5955C/TR13 FAQ
1.How can I place an order for 1PMT5955C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5955C/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 1PMT5955C/TR13 reliable?
The price and inventory of 1PMT5955C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5955C/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5955C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5955C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5955C/TR13?
1PMT5955C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5955C/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 1PMT5955C/TR13?
For technical support, including 1PMT5955C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5955C/TR13 requirements.
6.How does Aetrix verify that 1PMT5955C/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5955C/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 1PMT5955C/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5955C/TR13?
All 1PMT5955C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5955C/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 1PMT5955C/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5955C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5955C/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
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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SMAZ12-13-F
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