Microchip Technology 1PMT5926A/TR13
- Part No.:
- 1PMT5926A/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5926A/TR13.pdf
- Description:
- DIODE ZENER 11V 3W DO216AA
- Quantity:
- Payment:

- Shipping:

Inventory:9,648
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Product details
Overview
1PMT5926A/TR13 from Microsemi is a 11 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 5.5 Ω dynamic impedance at 34.1 mA test current and 1 µA max reverse leakage at 8.4 V. It serves as a precision voltage reference or overvoltage clamp in power supply regulation circuits.
For engineers reviewing the 1PMT5926A/TR13 datasheet, 1PMT5926A/TR13 pinout, 1PMT5926A/TR13 application, or 1PMT5926A/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 (400 Ω at 0.25 mA), and compatibility with automated SMT assembly per EIA-481 tape-and-reel packaging.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across load variations and temperature shifts. Its Powermite® package features a full metallic bottom for flux-free soldering and an integral locking tab acting as both mechanical anchor and heat sink-critical for thermal management in high-power-density layouts.
The device exhibits tight voltage regulation with 5.5 Ω dynamic impedance at IZT = 34.1 mA and maintains low reverse leakage (≤1 µA at VR = 8.4 V), enabling reliable clamping in transient suppression and reference applications where stability under varying current conditions is essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11 V ±5% at IZT = 34.1 mA - defines nominal regulation point with predictable deviation in production batches |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous power handling before thermal derating applies |
| Dynamic Impedance (ZZT) | 5.5 Ω at IZT = 34.1 mA - determines voltage variation under load current changes (ΔV = ZZT × ΔI) |
| Reverse Leakage (IR) | ≤1 µA at VR = 8.4 V - ensures minimal standby current in clamping or reference configurations |
| Thermal Resistance | 30°C/W junction-to-TAB - quantifies temperature rise per watt dissipated, guiding heatsink design |
| ESD Rating | >16 kV per Human Body Model - supports robustness during handling and board assembly without external protection |
| Knee Impedance (ZZK) | 400 Ω at IZK = 0.25 mA - indicates soft turn-on behavior near breakdown threshold, critical for low-current regulation |
Pinout & Package
Package: Powermite® (DO-216AA) surface-mount molded case with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and electrical connection point; must be thermally anchored to PCB copper for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal; mounted opposite TAB 1 per DO-216AA mechanical drawing |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving solder joint reliability and reducing post-assembly cleaning needs |
| Integral locking tab | Acts as mechanical anchor and thermal interface-enables direct thermal coupling to PCB ground plane or heatsink |
| EIA-481 tape-and-reel packaging | Supports high-speed automated placement with 3,000 units per 7-inch reel, minimizing line stoppages in SMT production |
| 16 kV HBM ESD rating | Reduces need for external ESD protection in input-stage clamping circuits, simplifying BOM and layout |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Zener reference providing stable 11 V threshold to drive optocoupler LED, ensuring ±5% output accuracy. Use Value: Tight 5.5 Ω dynamic impedance minimizes output voltage drift across load transients, maintaining regulation within spec. | Use Scenario: Clamping analog sensor outputs (e.g., 4–20 mA transmitters) against ESD or surge events. IC Role / Device Role / Timing Role: Transient voltage suppressor placed at signal input, shunting >8.4 V spikes to ground. Use Value: 1 µA max reverse leakage avoids loading sensitive sensor circuits; 16 kV HBM rating eliminates need for additional TVS stages. |
| Programmable Logic Controller I/O Protection | Automotive Body Control Module Reference |
Use Scenario: Protecting digital input pins on PLC modules from field-wiring induced surges. IC Role / Device Role / Timing Role: Low-leakage Zener clamp limiting input voltage to safe logic levels while preserving signal integrity. Use Value: 30°C/W thermal resistance allows direct mounting to control board copper, sustaining repeated 3.0 W pulse clamping without derating. | Use Scenario: Providing stable 11 V reference for microcontroller ADC or internal LDO biasing in BCMs. IC Role / Device Role / Timing Role: Precision voltage reference operating at ambient temperatures up to +125°C. Use Value: Stable ±5% tolerance and -55°C to +150°C junction temperature range ensure accuracy across automotive thermal cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5926B | Same 11 V Zener voltage and ±5% tolerance, but in DO-41 through-hole package; higher thermal resistance (50°C/W) | Requires manual or wave soldering; unsuitable for high-density SMT layouts | Select when legacy through-hole assembly or higher standoff voltage (1000 VRRM) is required |
| BZX84-C11 | 11 V Zener in SOT-23; lower power rating (300 mW), higher dynamic impedance (20 Ω), no metallic thermal tab | Limited to low-power signal-level clamping; cannot sustain 3.0 W continuous dissipation | Select only for space-constrained signal-path protection where thermal load is negligible |
Compared with 1N5926B and BZX84-C11, the 1PMT5926A/TR13 uniquely combines SMT compatibility, 3.0 W power handling, and direct thermal conduction via TAB 1-making it the only option among the three suitable for high-reliability, high-power-density voltage regulation in industrial and automotive power systems.
Availability
1PMT5926A/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, programmable logic controller I/O protection, and automotive body control module references requiring stable component supply and long-term manufacturability.
Supply support for 1PMT5926A/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 RF solutions for aerospace, defense, industrial, and communications markets.
The Powermite® Zener diode product line was designed to deliver high-power surface-mount voltage regulation in compact form factors-targeting applications where thermal performance, automated assembly compatibility, and ruggedized construction are critical.
FAQ
What is the Zener voltage tolerance for 1PMT5926A/TR13?
The 1PMT5926A/TR13 has a standard Zener voltage tolerance of ±5% at 11 V, measured at 34.1 mA test current with TAB 1 held at 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D respectively, but the base part number 1PMT5926A/TR13 specifies ±5%.
How is thermal management handled in the 1PMT5926A/TR13 package?
The 1PMT5926A/TR13 uses a Powermite® package with TAB 1 as the cathode and primary thermal path. Its 30°C/W junction-to-TAB thermal resistance requires direct thermal connection to PCB copper or an external heatsink to sustain the full 3.0 W rating at TAB 1 = 60°C.
Is the 1PMT5926A/TR13 compatible with automated SMT assembly?
Yes, the 1PMT5926A/TR13 is supplied in EIA-481 compliant tape-and-reel format (3,000 units per 7-inch reel), and its Powermite® package geometry-including the locking tab and flat metallic bottom-is specifically engineered for reliable pick-and-place and reflow soldering in high-volume SMT lines.
What is the maximum reverse leakage current for 1PMT5926A/TR13?
The 1PMT5926A/TR13 has a maximum reverse leakage current of 1 µA at a reverse voltage of 8.4 V, measured at TL = 30°C. This low leakage ensures minimal parasitic loading in precision reference and high-impedance clamping applications.
Does the 1PMT5926A/TR13 meet any ESD immunity standards?
Yes, the 1PMT5926A/TR13 is rated for >16 kV per the Human Body Model (HBM) ESD test, as confirmed in the MSC0995 datasheet. This rating applies to the bare die and package structure, supporting robust handling and board-level ESD resilience without requiring supplemental protection.
1PMT5926A/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):
- 11 V
- Tolerance:
- ±10%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 5.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 8.4 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
1PMT5926A/TR13 FAQ
1.How can I place an order for 1PMT5926A/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5926A/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 1PMT5926A/TR13 reliable?
The price and inventory of 1PMT5926A/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5926A/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5926A/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5926A/TR13 transactions.
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4.How is shipping managed for 1PMT5926A/TR13?
1PMT5926A/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5926A/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 1PMT5926A/TR13?
For technical support, including 1PMT5926A/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5926A/TR13 requirements.
6.How does Aetrix verify that 1PMT5926A/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5926A/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 1PMT5926A/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5926A/TR13?
All 1PMT5926A/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5926A/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 1PMT5926A/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5926A/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5926A/TR13 Tags

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