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Microchip Technology 1PMT5955E3/TR13
- Part No.:
- 1PMT5955E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5955E3/TR13.pdf
- Description:
- DIODE ZENER 180V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,206
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Product details
Overview
1PMT5955E3/TR13 from Microsemi is a 180 V, ±5% tolerance surface-mount Zener diode in the Powermite® 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 144 V, used for precision voltage regulation in industrial power supplies and overvoltage protection circuits.
For engineers reviewing the 1PMT5955E3/TR13 datasheet, 1PMT5955E3/TR13 pinout, 1PMT5955E3/TR13 application, or 1PMT5955E3/TR13 equivalent, key selection criteria include zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low knee impedance, and compatibility with automated SMT assembly using EIA-481 tape-and-reel packaging.
Technical Context
This Zener diode operates as a two-terminal voltage reference device with cathode designated by TAB 1, designed for stable regulation under varying load and temperature conditions. Its full metallic bottom eliminates solder flux entrapment, and integral locking tab provides mechanical retention and thermal conduction to the PCB.
The device exhibits tight voltage regulation across its 180 V nominal zener point, with specified knee current (IZK) of 0.25 mA and knee impedance (ZZK) of 7000 Ω, enabling reliable operation in low-current biasing and clamping applications where predictable turn-on behavior is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 180 V ±5% at IZT = 2.1 mA - defines precise clamping threshold for overvoltage protection |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables high-energy transient suppression without external heatsink |
| Dynamic Impedance (ZZT) | 900 Ω at IZT = 2.1 mA - indicates moderate regulation stiffness near nominal operating point |
| Reverse Leakage (IR) | ≤7000 µA at VR = 144 V - ensures low standby power loss in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB1 - supports thermal management via direct PCB copper pad conduction |
| ESD Rating | >16 kV per Human Body Model - provides robust handling immunity during automated assembly |
| Junction Temp Range | –55°C to +150°C - suitable for under-hood automotive and industrial environments |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat-sink locking tab; cathode identified by TAB 1; DO-216 outline; weight ≈ 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and electrical cathode connection; must be soldered to copper pour for thermal and electrical performance |
| Lead 2 | Anode | Standard anode terminal; mounted on PCB pad opposite TAB 1; no thermal function |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W power handling in compact footprint |
| Full metallic bottom | Eliminates solder flux entrapment risk during reflow, improving long-term reliability and void-free solder joints |
| Integral heat-sink locking tab | Provides mechanical anchoring during insertion and enhances thermal transfer from junction to PCB |
| EIA-481 tape-and-reel packaging | Supports high-speed pick-and-place with 3,000 pieces per 7-inch reel for production scalability |
| 180 V zener voltage with ±5% tolerance | Meets industrial-grade voltage reference requirements for DC bus monitoring and surge clamp thresholds |
Applications
| Industrial Power Supply Regulation | Automotive ECU Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing reference voltage in isolated DC-DC converter feedback loops and auxiliary bias rails. IC Role / Device Role / Timing Role: Two-terminal shunt regulator providing precise 180 V clamping to protect downstream control ICs. Use Value: Maintains regulation accuracy across –55°C to +150°C ambient, supporting wide-temperature industrial operation. | Use Scenario: Clamping transients on 24 V or 48 V battery-supplied microcontroller power rails in engine control units. IC Role / Device Role / Timing Role: High-energy transient suppressor absorbing load-dump spikes up to ISO 7637-2 Level 5. Use Value: 3.0 W dissipation capability and >16 kV HBM ESD rating ensure survivability in harsh automotive environments. |
| Telecom Line Card Protection | Renewable Energy Inverter DC Link Monitoring |
Use Scenario: Protecting analog front-end circuitry from lightning-induced surges on telecom line interfaces. IC Role / Device Role / Timing Role: Primary clamping element in multi-stage surge protection networks before TVS diodes. Use Value: Low knee impedance (7000 Ω) and defined 144 V reverse breakdown enable predictable clamping onset. | Use Scenario: Providing voltage reference for DC link sensing in solar inverters operating at 1000 V+ bus voltages. IC Role / Device Role / Timing Role: Precision zener reference in resistive divider networks feeding isolated ADC inputs. Use Value: ±5% tolerance and stable 180 V output support accurate scaling of high-voltage measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5955BRLG | Same 180 V nominal zener voltage, but in DO-41 axial package; 1.5 W rating; no metallic bottom or locking tab | Limited to through-hole assembly; lower power handling; unsuitable for automated SMT or high-thermal-demand layouts | Select only when legacy through-hole design or lower-cost manual assembly is required |
| SMBJ180A | TVS diode (not Zener); 180 V standoff, 200 W peak pulse power; bidirectional; higher clamping voltage (220 V) | Designed for transient suppression, not precision regulation; cannot replace in voltage reference roles | Use only for surge-only protection where regulation stability is not required |
Compared with 1PMT5955E3/TR13, the 1N5955BRLG offers identical voltage but lacks SMT compatibility and thermal performance, while SMBJ180A trades regulation accuracy for transient energy handling-neither serves as a drop-in replacement.
Availability
1PMT5955E3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, telecom line cards, and renewable energy inverters requiring stable component supply with consistent parametric performance and long-lifecycle availability.
Supply support for 1PMT5955E3/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 product line delivers high-power surface-mount voltage regulation in ruggedized packages optimized for automated manufacturing and thermally demanding applications.
FAQ
What is the zener voltage tolerance for 1PMT5955E3/TR13?
The 1PMT5955E3/TR13 has a standard zener voltage tolerance of ±5% at 180 V, measured at 2.1 mA test current with TAB 1 held at 30°C. Tighter tolerances (±2% and ±1%) are available with suffixes C and D respectively, but the E3/TR13 variant specifies ±5%.
How is thermal management handled in the 1PMT5955E3/TR13 package?
The 1PMT5955E3/TR13 uses its metallic TAB 1 as the primary thermal path, with a specified junction-to-TAB thermal resistance of 30°C/W. Effective cooling requires soldering TAB 1 to a sufficiently sized copper pad on the PCB to dissipate up to 3.0 W at TAB 1 = 60°C.
Is 1PMT5955E3/TR13 compatible with lead-free reflow processes?
Yes, the 1PMT5955E3/TR13 is qualified for lead-free reflow soldering per J-STD-020. Its Powermite® package withstands peak temperatures up to 260°C, and the full metallic bottom prevents flux entrapment-critical for void-free joints in Pb-free assembly.
What does the "TR13" suffix indicate in 1PMT5955E3/TR13?
The "TR13" suffix denotes tape-and-reel packaging per EIA-481 standard on a 13-inch reel containing 12,000 units. The "E3" portion indicates compliance with JEDEC moisture sensitivity level 3 (MSL-3), requiring bake prior to reflow if exposed beyond floor life.
Can 1PMT5955E3/TR13 be used in place of a 1N5955B in existing designs?
No-1PMT5955E3/TR13 is not a direct replacement for 1N5955B due to fundamental differences: it uses a surface-mount Powermite® package versus DO-41 axial, has higher power rating (3.0 W vs. 1.5 W), and different thermal path (TAB 1 vs. leads). Layout and thermal design must be revised.
1PMT5955E3/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:
- ±20%
- 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
1PMT5955E3/TR13 FAQ
1.How can I place an order for 1PMT5955E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5955E3/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 1PMT5955E3/TR13 reliable?
The price and inventory of 1PMT5955E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5955E3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5955E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5955E3/TR13 transactions.
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4.How is shipping managed for 1PMT5955E3/TR13?
1PMT5955E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5955E3/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 1PMT5955E3/TR13?
For technical support, including 1PMT5955E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5955E3/TR13 requirements.
6.How does Aetrix verify that 1PMT5955E3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5955E3/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 1PMT5955E3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5955E3/TR13?
All 1PMT5955E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5955E3/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 1PMT5955E3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5955E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5955E3/TR13 Tags
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