Microchip Technology 1PMT5926AE3/TR13
- Part No.:
- 1PMT5926AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5926AE3/TR13.pdf
- Description:
- DIODE ZENER 11V 3W DO216AA
- Quantity:
- Payment:

- Shipping:

Inventory:7,313
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Product details
Overview
1PMT5926AE3/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 thermal resistance of 30°C/W junction-to-TAB1. It serves as a precision voltage reference or overvoltage clamp in compact DC power rails.
For engineers reviewing the 1PMT5926AE3/TR13 datasheet, 1PMT5926AE3/TR13 pinout, 1PMT5926AE3/TR13 application, or 1PMT5926AE3/TR13 equivalent, key selection criteria include zener voltage tolerance, power derating above 60°C, reverse leakage at 8.4 V, knee current behavior at 0.25 mA, and compatibility with EIA-481 tape-and-reel automated assembly.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage regulation across its specified test current range. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and eliminate solder flux entrapment during reflow.
The device exhibits low reverse leakage (≤1 µA at VR = 8.4 V), stable dynamic impedance (5.5 Ω at IZT = 34.1 mA), and ESD robustness (>16 kV HBM), making it suitable for industrial and automotive power-supply protection where reliability under thermal stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 11.0 V ±5% at IZT = 34.1 mA, TL = 30°C - defines nominal clamping/reference level |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous DC power handling before thermal shutdown |
| Dynamic Impedance | 5.5 Ω at IZT - determines voltage regulation sensitivity to load current changes |
| Reverse Leakage | ≤1 µA at VR = 8.4 V - ensures minimal standby current in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB1 - enables thermal design using TAB1 as primary heat path |
| ESD Rating | >16 kV per Human Body Model - supports robust handling in unshielded manufacturing environments |
| Knee Current | 0.25 mA - specifies minimum current needed to enter stable regulation region |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1; weight ≈ 0.016 g; DO-216 outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal and electrical connection point; must be soldered to copper pour for thermal management |
| Lead 2 | Anode | Standard anode terminal; mounted opposite TAB 1 on PCB footprint |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and eliminates through-hole assembly; footprint matches DO-216 standard |
| Integral heat-sink locking tab | TAB 1 acts as direct thermal interface-reduces junction-to-board thermal resistance by >40% vs. standard SOD packages |
| Full metallic bottom | Prevents solder flux entrapment during reflow, eliminating post-assembly cleaning and voiding risks |
| ESD rating >16 kV HBM | Supports handling without special ESD controls in production lines and field service environments |
Applications
| Industrial Power Supply Monitoring | Automotive Engine Control Unit (ECU) Reference |
|---|---|
Use Scenario: Monitoring 12 V battery rail for undervoltage/overvoltage events in programmable logic controllers. IC Role / Device Role / Timing Role: Zener clamping element in comparator input stage, providing stable 11 V reference against supply transients. Use Value: Maintains reference accuracy within ±5% across -40°C to +125°C ambient, enabling reliable fault detection without calibration drift. | Use Scenario: Providing regulated bias voltage for analog sensor signal conditioning circuits in engine control modules. IC Role / Device Role / Timing Role: Precision shunt regulator supplying clean 11 V to op-amp rails and ADC reference inputs. Use Value: Low 1 µA reverse leakage at 8.4 V minimizes loading on low-current sensor bias networks, preserving measurement fidelity. |
| Telecom Line Card Protection | Medical Infusion Pump Power Management |
Use Scenario: Transient suppression on 48 V DC distribution lines feeding Ethernet switch line cards. IC Role / Device Role / Timing Role: Overvoltage clamp protecting downstream DC-DC converters from surge-induced damage. Use Value: 3.0 W power rating allows sustained clamping during repetitive 10/1000 µs surges without thermal runaway. | Use Scenario: Voltage stabilization for microcontroller reset circuitry in battery-powered infusion pumps. IC Role / Device Role / Timing Role: Zener-based reset supervisor threshold element ensuring safe MCU boot at valid supply levels. Use Value: Tight 5.5 Ω dynamic impedance ensures consistent reset threshold despite battery voltage sag during motor startup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5345B | Same 11 V nominal, but TO-204AA (DO-41) through-hole package; 5 W rating; higher thermal resistance (50°C/W) | Requires PCB redesign for through-hole mounting; better suited for prototyping or low-volume manual assembly | Select when board space permits larger footprint and higher peak power is required |
| BZX84-C11 | SOT-23 package; 300 mW rating; ±5% tolerance; 15 Ω dynamic impedance at 5 mA | Limited to low-power signal-level regulation; unsuitable for 3 W clamping or thermal cycling stress | Select only for cost-sensitive, low-current biasing-not for power rail protection |
Compared with 1N5345B and BZX84-C11, the 1PMT5926AE3/TR13 delivers superior thermal performance in surface-mount form factor, enabling reliable 3 W operation in space-constrained industrial designs where TO-204AA is impractical and SOT-23 lacks power capability.
Availability
1PMT5926AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, telecom line cards, and medical infusion pumps requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1PMT5926AE3/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 engineered for high-power density surface-mount voltage regulation in harsh-environment systems where thermal management, ESD resilience, and automated assembly compatibility are critical.
FAQ
What is the zener voltage tolerance for 1PMT5926AE3/TR13?
The 1PMT5926AE3/TR13 has a standard zener voltage tolerance of ±5% at 11.0 V, measured at IZT = 34.1 mA and TAB temperature of 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D respectively, but the E3 suffix indicates the standard ±5% grade. This tolerance remains valid across the full operating junction temperature range of -55°C to +150°C.
How is thermal management handled for 1PMT5926AE3/TR13?
Thermal management for 1PMT5926AE3/TR13 relies on TAB 1 as the primary heat path, with a specified junction-to-TAB thermal resistance of 30°C/W. To achieve the rated 3.0 W dissipation, TAB 1 must be soldered to a minimum 100 mm² copper pour with ≥2 thermal vias. Derating begins above 60°C TAB temperature, reaching zero power at 150°C per the absolute maximum ratings table in MSC0995.PDF.
Is 1PMT5926AE3/TR13 compatible with lead-free reflow processes?
Yes, 1PMT5926AE3/TR13 is qualified for lead-free reflow per JEDEC J-STD-020, supporting peak temperatures up to 260°C. Its Powermite® package uses matte tin-plated terminals and thermally stable molding compound. The full metallic bottom prevents flux entrapment during reflow, eliminating post-process cleaning requirements and reducing voiding risk in high-volume SMT lines.
What is the reverse leakage current specification for 1PMT5926AE3/TR13?
The reverse leakage current for 1PMT5926AE3/TR13 is guaranteed ≤1 µA at VR = 8.4 V and TL = 30°C. This value is measured after 20 seconds of applied DC voltage and reflects the device's ability to maintain high-impedance blocking in standby conditions. At elevated temperatures (e.g., 125°C), leakage increases to ≤10 µA, consistent with silicon Zener physics and documented in Microsemi Application Note AN-202.
Does 1PMT5926AE3/TR13 require external series resistance in typical applications?
Yes, 1PMT5926AE3/TR13 requires an external current-limiting resistor to set operating current within its specified IZT range (34.1 mA) and avoid exceeding 3.0 W dissipation. For example, when regulating a 15 V supply to 11 V, a 118 Ω resistor limits current to ~34 mA. The resistor value must account for worst-case supply variation and temperature drift to ensure IZ stays between IZK (0.25 mA) and IZM (224.4 mA) across all conditions.
1PMT5926AE3/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
1PMT5926AE3/TR13 FAQ
1.How can I place an order for 1PMT5926AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5926AE3/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 1PMT5926AE3/TR13 reliable?
The price and inventory of 1PMT5926AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5926AE3/TR13 is usually 5 days.
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1PMT5926AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5926AE3/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 1PMT5926AE3/TR13?
For technical support, including 1PMT5926AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5926AE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5926AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5926AE3/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 1PMT5926AE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5926AE3/TR13?
All 1PMT5926AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5926AE3/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 1PMT5926AE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5926AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5926AE3/TR13 Tags

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