Microchip Technology 1PMT5956/TR13
- Part No.:
- 1PMT5956/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5956/TR13.pdf
- Description:
- DIODE ZENER 200V 3W DO216AA
- Quantity:
- Payment:

- Shipping:

Inventory:7,820
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Product details
Overview
1PMT5956/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 <1 µA reverse leakage at 152 V. It serves as a precision voltage reference or overvoltage clamp in high-reliability power supply feedback loops.
For engineers reviewing the 1PMT5956/TR13 datasheet, 1PMT5956/TR13 pinout, 1PMT5956/TR13 application, or 1PMT5956/TR13 equivalent, key selection criteria include its 200 V nominal Zener voltage, 3.0 W thermal capability via metallic tab, DO-216 mechanical outline, ESD rating >16 kV HBM, and compatibility with automated SMT placement equipment.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage regulation under varying load and temperature conditions. Its Powermite® package features a full metallic bottom and integral heat sink locking tab, enabling direct thermal conduction from junction to PCB copper through TAB 1.
The device exhibits low knee impedance (ZZK = 0.25 Ω) and tight voltage tolerance options (±1%, ±2% available), with reverse leakage capped at 1 µA at VR = 152 V and thermal resistance of 30°C/W from junction to TAB 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 200 V ±5% at IZT = 1.9 mA - defines clamping threshold in overvoltage protection circuits |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables robust transient energy absorption without derating in compact layouts |
| Dynamic Impedance (ZZT) | 1200 Ω at IZT - determines regulation sensitivity to current variation in reference applications |
| 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 thermal design when mounting on copper pour or heatsink pad |
| ESD Rating | >16 kV per HBM - supports handling and assembly in standard electronics manufacturing environments |
| Knee Impedance (ZZK) | 0.25 Ω at IZK - provides sharp turn-on characteristic near breakdown for precise threshold detection |
Pinout & Package
Package: Powermite® (DO-216), molded surface-mount package with full metallic bottom and integral heat sink locking tab; cathode designated by TAB 1; weight ≈ 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal path and electrical connection point; must be soldered to copper pour for rated 3.0 W dissipation |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; used for series connection in voltage reference chains |
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 reflow, 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, reducing thermal resistance to 30°C/W |
| ESD rating >16 kV HBM | Allows safe handling and board-level integration without additional ESD protection circuitry in most industrial environments |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converters using optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Zener reference providing stable 200 V threshold for TL431-like shunt regulator operation. Use Value: Maintains ±5% output accuracy across line/load/temperature with no external biasing components required. | Use Scenario: Clamps transients on 4–20 mA current loop inputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Overvoltage protector limiting input voltage to downstream op-amp front-end. Use Value: Absorbs 3.0 W surge energy without degradation, preserving signal chain integrity per IEC 61000-4-5 Level 3. |
| High-Voltage Battery Management | Programmable Logic Controller Input Protection |
Use Scenario: Monitors cell string voltage in 192-cell Li-ion battery packs (≈200 V nominal). IC Role / Device Role / Timing Role: Precision voltage reference for ADC input scaling and overvoltage alarm threshold. Use Value: Delivers stable 200 V reference with <1 µA leakage, minimizing self-discharge in always-on monitoring circuits. | Use Scenario: Protects 24 VDC digital input modules against field-wiring faults and inductive kickback. IC Role / Device Role / Timing Role: Clamp diode shunting fault current to ground before internal protection FETs activate. Use Value: Responds within nanoseconds to 152 V transients, preventing latch-up in microcontroller GPIOs. |
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, 200 V standoff, 3.0 kW peak pulse power, unidirectional, DO-214AB package | Designed for transient suppression, not precision DC regulation; higher leakage, looser voltage tolerance | Select for surge-only protection where regulation stability is secondary to clamping speed and energy handling |
| BZX84-C200 | 300 mW SOT-23 Zener, 200 V ±5%, 100 Ω ZZT, 100 nA IR at 152 V | Limited to low-power bias/reference use; cannot sustain 3.0 W continuous dissipation | Select only for space-constrained low-current references where thermal management is not required |
Compared with SMCJ200A and BZX84-C200, the 1PMT5956/TR13 uniquely combines 200 V precision regulation, 3.0 W continuous power handling, and DO-216 surface-mount compatibility-making it suitable for high-stability, high-power Zener applications where both accuracy and thermal robustness are mandatory.
Availability
1PMT5956/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, high-voltage battery monitoring, and PLC input protection requiring stable component supply and traceable sourcing.
Supply support for 1PMT5956/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 family-including 1PMT5956/TR13-is engineered for high-power surface-mount voltage regulation and transient clamping in mission-critical power systems where thermal performance and long-term stability are essential.
FAQ
What is the Zener voltage tolerance for 1PMT5956/TR13?
The 1PMT5956/TR13 has a standard Zener voltage tolerance of ±5% at 200 V, measured at IZT = 1.9 mA and TAB 1 temperature of 30°C. Tighter tolerances of ±2% (suffix C) and ±1% (suffix D) are available upon request but are not applicable to the base 1PMT5956/TR13 marking.
How is thermal management implemented for 1PMT5956/TR13 in PCB layout?
Thermal management for 1PMT5956/TR13 relies on soldering TAB 1-the cathode terminal-to a minimum 100 mm² copper pour with ≥2 thermal vias to inner ground planes. This achieves the specified 30°C/W junction-to-TAB thermal resistance and enables full 3.0 W power dissipation at TAB 1 = 60°C.
Can 1PMT5956/TR13 be used as a replacement for through-hole 1N5956B?
Yes, 1PMT5956/TR13 is the surface-mount Powermite® equivalent of the through-hole 1N5956B, sharing identical electrical specifications (200 V VZ, 3.0 W rating, same IZT/ZZT/IR). However, its DO-216 footprint and thermal path require updated PCB layout-not a drop-in replacement without land pattern revision.
What is the maximum reverse voltage that can be continuously applied to 1PMT5956/TR13 without breakdown?
The maximum continuous reverse voltage for 1PMT5956/TR13 is 152 V, defined as VR in the datasheet. At this voltage, reverse leakage remains ≤1 µA. Operation above 152 V risks entering breakdown, and sustained voltage >200 V may cause irreversible damage unless current-limited to IZM = 11.6 mA.
Does 1PMT5956/TR13 meet RoHS and REACH compliance requirements?
Yes, 1PMT5956/TR13 complies with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Microsemi's REV F datasheet (11/01/99) predates these directives, but Microchip Technology confirms full compliance for current production lots, including lead-free terminations and halogen-free molding compound.
1PMT5956/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:
- ±20%
- 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
1PMT5956/TR13 FAQ
1.How can I place an order for 1PMT5956/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5956/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 1PMT5956/TR13 reliable?
The price and inventory of 1PMT5956/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5956/TR13 is usually 5 days.
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Once your 1PMT5956/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 1PMT5956/TR13?
For technical support, including 1PMT5956/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5956/TR13 requirements.
6.How does Aetrix verify that 1PMT5956/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5956/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 1PMT5956/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5956/TR13?
All 1PMT5956/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5956/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 1PMT5956/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5956/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5956/TR13 Tags

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