Microchip Technology 1PMT5956B/TR13
- Part No.:
- 1PMT5956B/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5956B/TR13.pdf
- Description:
- DIODE ZENER 200V 3W DO216AA
- Quantity:
- Payment:

- Shipping:

Inventory:4,958
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Product details
Overview
1PMT5956B/TR13 from Microsemi is a 200 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 1.9 mA test current (IZT), 1200 Ω dynamic impedance (ZZT), and 11.6 mA maximum Zener current (IZM). It serves as a precision voltage reference or overvoltage clamp in high-reliability power supply rails.
For engineers reviewing the 1PMT5956B/TR13 datasheet, 1PMT5956B/TR13 pinout, 1PMT5956B/TR13 application, or 1PMT5956B/TR13 equivalent, key selection criteria include its 200 V Zener voltage, 3.0 W thermal capability with metallic-tab heat sinking, low reverse leakage (<1 µA at VR = 152 V), ESD rating >16 kV HBM, and DO-216 mechanical outline compatibility with automated SMT placement.
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 the PCB pad, achieving 30°C/W thermal resistance from junction to TAB 1.
The device exhibits tight knee characteristics (IZK = 0.25 mA, ZZK = 8000 Ω) and low dynamic impedance (1200 Ω at IZT = 1.9 mA), enabling predictable regulation even under transient current shifts. Voltage tolerance is specified at ±5% standard, with optional 2% (suffix C) and 1% (suffix D) variants available.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 200 V ±5% at IZT = 1.9 mA - defines clamping threshold for overvoltage protection circuits |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables robust thermal handling without external heatsink in compact layouts |
| Dynamic Impedance (ZZT) | 1200 Ω at 60 Hz, 10% IZT - determines output voltage variation under load current changes |
| Knee Impedance (ZZK) | 8000 Ω at IZK = 0.25 mA - indicates sharpness of breakdown onset for low-current regulation |
| Reverse Leakage (IR) | <1 µA at VR = 152 V - ensures minimal standby power loss in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - allows accurate junction temperature estimation from PCB pad temperature |
| ESD Rating | >16 kV per Human Body Model - supports handling and assembly in non-ESD-controlled environments |
Pinout & Package
Package: Powermite® (DO-216AA), surface-mount, molded plastic with full metallic bottom and integral heat-sink locking tab. Cathode is designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and electrical cathode connection; must be soldered to copper pour for thermal performance |
| Lead 2 | Anode | Standard anode terminal; reverse-biased during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term reliability and void-free solder joints |
| Integral heat-sink locking tab | Provides direct thermal conduction path from junction to PCB, enabling 3.0 W operation without external heatsink |
| DO-216AA mechanical outline | Ensures compatibility with standard SMT pick-and-place equipment and tape-and-reel feeders (EIA-481) |
| ESD robustness | >16 kV HBM rating reduces risk of field failure due to electrostatic discharge during handling or system operation |
Applications
| Industrial Power Supply Clamp | Automotive ECU Voltage Reference |
|---|---|
Use Scenario: Clamping transient spikes on 24 V rail in programmable logic controllers exposed to inductive switching noise. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to limit voltage excursions to ≤200 V. Use Value: Prevents damage to downstream 3.3 V/5 V regulators and microcontrollers using only one discrete component with no active control. | Use Scenario: Providing stable 200 V reference for high-side gate driver biasing in 48 V mild-hybrid vehicle inverters. IC Role / Device Role / Timing Role: Precision voltage reference source for isolated feedback loops requiring high-voltage stability. Use Value: Enables accurate gate drive voltage scaling with ±5% tolerance and low drift over -55°C to +150°C junction range. |
| Telecom Line Surge Protection | Test Equipment High-Voltage Calibration |
Use Scenario: Secondary overvoltage protection stage in DSL line interface cards subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-acting shunt clamp activated after primary MOV/GDT stages. Use Value: Absorbs residual energy up to 3.0 W without thermal runaway, thanks to 30°C/W junction-to-tab thermal path. | Use Scenario: Calibrating high-voltage probes and insulation testers requiring traceable 200 V reference points. IC Role / Device Role / Timing Role: Stable, low-drift Zener reference used in metrology-grade voltage divider networks. Use Value: Delivers <1 µA reverse leakage and 1200 Ω dynamic impedance for repeatable, low-noise measurements under lab conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ200A | TVS diode (not Zener); 200 V standoff, 3.0 kW peak pulse power, unidirectional | Designed for transient suppression, not DC regulation; higher clamping voltage under surge | Choose for surge-only protection where DC regulation is unnecessary |
| 1N5388B | Through-hole 200 V Zener; 5 W rating but larger DO-201AD package; no integrated heat sink tab | Requires larger PCB footprint and external thermal management for equivalent power handling | Choose when legacy through-hole assembly or higher continuous power is required |
Compared with SMCJ200A and 1N5388B, the 1PMT5956B/TR13 uniquely combines surface-mount compatibility, integrated thermal conduction via metallic tab, and true DC Zener regulation at 200 V-making it optimal for space-constrained, thermally demanding SMT designs requiring stable voltage references.
Availability
1PMT5956B/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, telecom surge protection circuits, and test equipment calibration systems requiring stable component supply and long-lifecycle support.
Supply support for 1PMT5956B/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 was designed for high-power-density, thermally efficient voltage regulation in surface-mount power systems where board space and thermal management are critical constraints.
FAQ
What is the Zener voltage tolerance for 1PMT5956B/TR13?
The 1PMT5956B/TR13 has a standard Zener voltage tolerance of ±5% at 200 V, measured at IZT = 1.9 mA with TAB 1 held at 30°C. Tighter tolerances of ±2% (suffix C) and ±1% (suffix D) are available as custom order options. Voltage measurement must be performed within 20 seconds of applying DC current to avoid self-heating effects.
How is thermal performance achieved in the 1PMT5956B/TR13 Powermite® package?
The 1PMT5956B/TR13 achieves thermal performance through its full metallic bottom and integral locking tab, which provide direct thermal conduction from the silicon junction to the PCB copper pad. This design yields a measured thermal resistance of 30°C/W from junction to TAB 1, enabling reliable 3.0 W DC power dissipation at TAB 1 = 60°C without external heatsinking.
Is the 1PMT5956B/TR13 compatible with standard SMT assembly processes?
Yes, the 1PMT5956B/TR13 uses the DO-216AA outline and is supplied in EIA-481-compliant tape-and-reel packaging (7-inch reel: 3,000 pcs; 13-inch reel: 12,000 pcs). Its Powermite® package is optimized for compatibility with automatic insertion and reflow soldering equipment, and its full metallic bottom prevents solder flux entrapment during assembly.
What is the maximum reverse leakage current for 1PMT5956B/TR13 at rated voltage?
At VR = 152 V (76% of nominal 200 V Zener voltage), the 1PMT5956B/TR13 exhibits a maximum reverse leakage current of 1 µA. This low leakage supports energy-efficient bias networks and high-impedance reference applications where standby current must be minimized.
Does the 1PMT5956B/TR13 have ESD protection built-in?
Yes, the 1PMT5956B/TR13 is rated for >16 kV per Human Body Model (HBM) ESD, as confirmed in the Microsemi MSC0995 datasheet. This level of robustness allows safe handling and assembly in standard manufacturing environments without requiring additional ESD mitigation steps during PCB integration.
1PMT5956B/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):
- 200 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 1200 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 152 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
1PMT5956B/TR13 FAQ
1.How can I place an order for 1PMT5956B/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5956B/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 1PMT5956B/TR13 reliable?
The price and inventory of 1PMT5956B/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5956B/TR13 is usually 5 days.
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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 1PMT5956B/TR13?
For technical support, including 1PMT5956B/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5956B/TR13 requirements.
6.How does Aetrix verify that 1PMT5956B/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5956B/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 1PMT5956B/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5956B/TR13?
All 1PMT5956B/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5956B/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 1PMT5956B/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5956B/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5956B/TR13 Tags

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