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Microchip Technology 1PMT5955CE3/TR13
- Part No.:
- 1PMT5955CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5955CE3/TR13.pdf
- Description:
- DIODE ZENER 180V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,246
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Product details
Overview
1PMT5955CE3/TR13 from Microsemi is a 180 V, ±5% tolerance Zener diode in Powermite® surface-mount package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 900 Ω dynamic impedance at 2.1 mA test current and 7000 µA max reverse leakage at 136.8 V. It serves as a precision voltage reference or overvoltage clamp in high-reliability power supply feedback loops.
For engineers reviewing the 1PMT5955CE3/TR13 datasheet, 1PMT5955CE3/TR13 pinout, 1PMT5955CE3/TR13 application, or 1PMT5955CE3/TR13 equivalent, key selection criteria include zener voltage tolerance (±5%), thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low knee current (0.25 mA), and compatibility with EIA-481 tape-and-reel automated assembly.
Technical Context
This device operates as a two-terminal voltage-regulating diode with cathode designated by TAB 1. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and eliminate solder flux entrapment during reflow.
Electrical behavior is defined at TL = 30°C with VZ measured 20 seconds after DC current application; dynamic impedance (ZZT) is derived using 60 Hz RMS AC current equal to 10% of IZT, per Micro Note 202 for voltage-current deviation analysis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 180 V ±5% - stable regulation point under 2.1 mA test current at 30°C case temperature |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - defines maximum continuous power handling with thermal derating above 60°C |
| Dynamic Impedance (ZZT) | 900 Ω at IZT = 2.1 mA - indicates voltage stability under small-signal AC perturbations |
| Knee Current (IZK) | 0.25 mA - minimum current required to enter regulated region with acceptable voltage deviation |
| Reverse Leakage (IR) | 7000 µA max at VR = 136.8 V - sets upper bound on off-state current in clamping applications |
| Thermal Resistance | 30°C/W junction-to-TAB1 - enables thermal design of PCB copper area for heat sinking |
| ESD Rating | >16 kV HBM - ensures robustness against human-body-model electrostatic discharge during handling |
Pinout & Package
The 1PMT5955CE3/TR13 uses a DO-216 molded surface-mount package with full metallic bottom and integral heat sink locking tab. Cathode is unambiguously designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and voltage reference node; must be connected to ground or low-impedance return for thermal and electrical performance |
| Lead 2 | Anode | Input terminal for reverse-bias operation; connects to higher-potential rail in clamp/reference configurations |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W power handling comparable to larger through-hole Zeners |
| Full metallic bottom | Eliminates solder flux entrapment risk during assembly, improving long-term reliability and solder joint integrity |
| Integral heat sink locking tab | Provides mechanical anchoring and direct thermal conduction path from junction to PCB copper pour |
| ESD robustness | >16 kV HBM rating reduces need for external protection in board-level ESD-sensitive environments |
| Tight voltage tolerance option | ±5% standard; optional ±2% (suffix C) and ±1% (suffix D) available for precision reference designs |
Applications
| Industrial Power Supply Feedback | Automotive Load Dump Protection |
|---|---|
Use Scenario: Regulates error amplifier reference in isolated flyback or forward converter feedback networks. IC Role / Device Role / Timing Role: Zener diode providing stable 180 V reference for optocoupler biasing and secondary-side voltage sensing. Use Value: Maintains output regulation accuracy within ±5% across temperature and line variations, leveraging 30°C/W thermal resistance for predictable drift. | Use Scenario: Clamps transient overvoltage spikes during automotive load dump events (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Two-terminal shunt protector absorbing up to 3.0 W peak energy without failure. Use Value: Withstands 136.8 V reverse standoff and clamps >180 V transients, supported by >16 kV HBM ESD immunity for system-level robustness. |
| High-Voltage Sensor Biasing | Telecom Line Interface Protection |
Use Scenario: Supplies stable bias voltage to high-voltage photodiodes or avalanche photodetectors. IC Role / Device Role / Timing Role: Precision Zener reference establishing fixed reverse-bias potential for sensor junctions. Use Value: Low 0.25 mA knee current ensures regulation onset at minimal bias current, critical for low-power sensor front-ends. | Use Scenario: Protects analog front-end circuitry in DSL or POTS line cards from lightning-induced surges. IC Role / Device Role / Timing Role: Primary shunt clamp limiting line voltage to 180 V during fast-rising transients. Use Value: 900 Ω dynamic impedance ensures low clamping overshoot; DO-216 package allows dense layout near connector entry points. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5375B | Same 180 V nominal, but TO-204AA (DO-41) through-hole package; 3.0 W rating at 50°C ambient, not case temperature | Requires manual or wave-solder assembly; lacks metallic bottom and flux-trap mitigation | Select when legacy through-hole layout or higher ambient-temperature derating margin is needed |
| SMBJ180A | TVS diode, not Zener; 180 V breakdown at 1 mA, 600 W peak pulse power, bidirectional capability | Designed for transient suppression only-not suitable for precision DC regulation or feedback references | Select only for surge-only protection; not interchangeable for voltage reference use cases |
Compared with 1PMT5955CE3/TR13, the 1N5375B offers identical voltage but inferior thermal management and assembly compatibility, while SMBJ180A provides high-energy transient clamping but no stable DC regulation-making neither a drop-in replacement for precision reference roles.
Availability
1PMT5955CE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive electronics, telecom line interface protection, and high-voltage sensor biasing requiring stable component supply and EIA-481 tape-and-reel compatibility.
Supply support for 1PMT5955CE3/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 series-including 1PMT5955CE3/TR13-is engineered for surface-mount power regulation and clamping in space-constrained, thermally demanding applications where flux-free assembly and repeatable thermal performance are critical.
FAQ
What is the Zener voltage tolerance for 1PMT5955CE3/TR13?
The 1PMT5955CE3/TR13 has a standard Zener voltage tolerance of ±5% at 180 V nominal, measured at 2.1 mA test current with TAB 1 held at 30°C. Tighter tolerances of ±2% (suffix C) and ±1% (suffix D) are available as factory options, but the CE3 suffix denotes the standard ±5% version. This tolerance directly impacts regulation accuracy in feedback and reference circuits.
How is thermal performance specified for 1PMT5955CE3/TR13?
Thermal performance of the 1PMT5955CE3/TR13 is defined by a junction-to-TAB1 thermal resistance of 30°C/W. Since TAB 1 is the cathode and primary heat path, effective PCB copper area under TAB 1 determines actual operating temperature. The 3.0 W power rating applies only when TAB 1 is maintained at 60°C; derating is required above that temperature per the datasheet curve.
Is 1PMT5955CE3/TR13 compatible with automated SMT assembly processes?
Yes, 1PMT5955CE3/TR13 is fully compatible with automated insertion and reflow soldering. Its Powermite® package features a unique locking tab for mechanical stability and a full metallic bottom that prevents solder flux entrapment-key advantages over conventional SOD packages. It ships in EIA-481 tape-and-reel format (13-inch reel, 12,000 pieces), optimized for pick-and-place equipment.
What does the "CE3" suffix indicate in 1PMT5955CE3/TR13?
The "CE3" suffix in 1PMT5955CE3/TR13 identifies the packaging and tolerance configuration: "C" denotes ±5% Zener voltage tolerance, "E" indicates Powermite® package, and "3" specifies EIA-481 tape-and-reel packaging (13-inch reel). The "TR13" further confirms the 13-inch reel format. This distinguishes it from variants like 1PMT5955B (±5%, bulk) or 1PMT5955D (±1%, tape).
Can 1PMT5955CE3/TR13 be used as a substitute for older through-hole Zeners like 1N5375B?
While 1PMT5955CE3/TR13 and 1N5375B share the same 180 V nominal Zener voltage and 3.0 W rating, they are not direct substitutes due to fundamental differences: 1PMT5955CE3/TR13 is surface-mount with case-temperature rating and integrated heat sink, whereas 1N5375B is through-hole with ambient-temperature rating and no flux mitigation. PCB redesign and thermal validation are required for replacement.
1PMT5955CE3/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
1PMT5955CE3/TR13 FAQ
1.How can I place an order for 1PMT5955CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5955CE3/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 1PMT5955CE3/TR13 reliable?
The price and inventory of 1PMT5955CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5955CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5955CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5955CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5955CE3/TR13?
1PMT5955CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5955CE3/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 1PMT5955CE3/TR13?
For technical support, including 1PMT5955CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5955CE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5955CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5955CE3/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 1PMT5955CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5955CE3/TR13?
All 1PMT5955CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5955CE3/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 1PMT5955CE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5955CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5955CE3/TR13 Tags
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