Microchip Technology 1PMT5936AE3/TR13
- Part No.:
- 1PMT5936AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5936AE3/TR13.pdf
- Description:
- DIODE ZENER 30V 3W DO216AA
- Quantity:
- Payment:

- Shipping:

Inventory:3,412
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Product details
Overview
1PMT5936AE3/TR13 from Microsemi is a 30 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 28 Ω dynamic impedance at 12.5 mA test current and thermal resistance of 30°C/W junction-to-tab - used for precision voltage regulation and overvoltage protection in compact DC power rails.
For engineers reviewing the 1PMT5936AE3/TR13 datasheet, 1PMT5936AE3/TR13 pinout, 1PMT5936AE3/TR13 application, or 1PMT5936AE3/TR13 equivalent, key selection criteria include zener voltage tolerance, power derating above 60°C, reverse leakage at 22.8 V, knee current (0.25 mA), and ESD robustness (>16 kV HBM) in high-reliability industrial and automotive subsystems.
Technical Context
This Zener diode operates as a two-terminal voltage reference device, leveraging silicon PN-junction avalanche breakdown to maintain stable 30 V across its terminals under reverse bias. Its behavior is defined by tightly specified parameters including dynamic impedance (28 Ω), knee impedance (750 Ω), and reverse leakage (≤1 µA at VR = 22.8 V).
The Powermite® package integrates a full metallic bottom and locking tab that serves as both mechanical anchor and thermal path to PCB copper, enabling direct heat conduction from junction to TAB 1 with 30°C/W thermal resistance - critical for sustaining 3.0 W dissipation without external heatsinking in space-constrained layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 30 V ±5% at IZT = 12.5 mA - defines nominal regulation point with predictable deviation in production batches. |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - maximum continuous DC power sustainable with board-level thermal management. |
| Dynamic Impedance (ZZT) | 28 Ω at IZT = 12.5 mA - indicates small-signal AC resistance affecting regulation accuracy under varying load currents. |
| Knee Current (IZK) | 0.25 mA - minimum current required to enter useful regulation region; below this, voltage drops sharply. |
| Reverse Leakage (IR) | ≤1 µA at VR = 22.8 V - ensures minimal standby current in undervoltage lockout or sensing circuits. |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - quantifies temperature rise per watt; enables thermal design using PCB copper area as heatsink. |
| ESD Rating | >16 kV per Human Body Model - supports handling and assembly in non-ESD-controlled environments without damage. |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral locking tab; cathode designated by TAB 1; weight ≈ 0.016 g; compatible with EIA-481 tape-and-reel (TR13 = 13-inch reel, 12,000 pcs).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal and electrical connection point; must be soldered to copper pour for thermal performance and circuit return path. |
| Lead 2 | Anode | Standard anode terminal; reverse-biased during regulation; connects to lower-potential node in shunt configuration. |
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. |
| Integral heat sink locking tab | Provides mechanical retention during reflow and direct thermal conduction path from junction to PCB copper. |
| Full metallic bottom | Eliminates solder flux entrapment risk during assembly, improving long-term reliability and solder joint integrity. |
| ESD robustness >16 kV HBM | Reduces need for upstream ESD protection components in low-voltage input stages and sensor interfaces. |
Applications
| Industrial Power Supply Monitoring | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Monitoring 24 V battery rail for undervoltage/overvoltage conditions in programmable logic controllers. IC Role / Device Role / Timing Role: Shunt regulator and reference element in comparator-based threshold detection circuit. Use Value: Stable 30 V reference enables accurate trip-point setting with ≤5% tolerance and low drift over temperature. | Use Scenario: Clamping transient spikes on LIN bus power lines exposed to load-dump events. IC Role / Device Role / Timing Role: Overvoltage protection device absorbing energy up to 3.0 W during 100 ms transients. Use Value: Metallic tab conducts heat directly into chassis ground plane, sustaining repeated surge events without thermal runaway. |
| Medical Infusion Pump Power Stage | Avionics Sensor Signal Conditioning |
Use Scenario: Providing regulated bias for op-amps driving stepper motor drivers in battery-powered infusion systems. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) voltage reference ensuring stable gain calibration over 10-year service life. Use Value: Tight 5% VZ tolerance and 30°C/W thermal resistance allow use without trimming resistors or thermal sensors. | Use Scenario: Protecting analog front-end inputs of ADCs sampling pressure/temperature signals in flight control units. IC Role / Device Role / Timing Role: ESD suppression element rated >16 kV HBM placed at connector interface before signal conditioning stage. Use Value: Dual function as ESD clamp and overvoltage limiter eliminates need for separate TVS + Zener cascade. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5357B | Same 30 V nominal, but DO-204AL package; 5 W rating; higher thermal resistance (~50°C/W); no metallic bottom. | Requires larger PCB footprint and additional thermal relief; less suitable for high-density automated assembly. | Prefer 1PMT5936AE3/TR13 when board space, thermal performance, or SMT process compatibility are critical. |
| BZX84-C30 | 30 V ±5%, SOT-23 package; 300 mW rating; dynamic impedance ~50 Ω; no locking tab or metallic bottom. | Limited to low-power signal-level regulation; cannot sustain 3.0 W or serve as primary overvoltage clamp. | Select 1PMT5936AE3/TR13 where power handling, thermal stability, or mechanical robustness are required. |
Compared with 1N5357B and BZX84-C30, the 1PMT5936AE3/TR13 delivers superior thermal performance (30°C/W vs. ≥50°C/W), mechanical anchoring via locking tab, and full-metallic bottom for flux-free assembly - making it the preferred choice for industrial-grade 3 W shunt regulation where reliability and manufacturability are prioritized.
Availability
1PMT5936AE3/TR13 is available at Aetrix Electronics and suitable for industrial power monitoring, automotive BCM protection, medical infusion pump biasing, and avionics signal conditioning requiring stable component supply across extended product lifecycles.
Supply support for 1PMT5936AE3/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 series, including 1PMT5936AE3/TR13, was designed for high-power-density voltage regulation in harsh-environment applications where thermal management, ESD resilience, and automated assembly compatibility are essential.
FAQ
What is the Zener voltage tolerance for 1PMT5936AE3/TR13?
The 1PMT5936AE3/TR13 has a standard Zener voltage tolerance of ±5% at 30 V, measured at 12.5 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 suffix denotes the standard ±5% version. This tolerance directly impacts regulation accuracy in precision reference circuits.
How much power can 1PMT5936AE3/TR13 dissipate continuously?
The 1PMT5936AE3/TR13 is rated for 3.0 W DC power dissipation when TAB 1 is maintained at 60°C. Derating is required above this temperature - approximately linear down to zero at 150°C junction temperature. The 30°C/W thermal resistance means each watt raises junction temperature by 30°C above TAB 1, so effective power depends on PCB copper area and airflow.
What does the TR13 suffix mean in 1PMT5936AE3/TR13?
The TR13 suffix in 1PMT5936AE3/TR13 indicates packaging in a 13-inch tape-and-reel format per EIA-481 standard, containing 12,000 units. This format is optimized for high-volume SMT pick-and-place equipment. The "E3" portion denotes the ±5% voltage tolerance and RoHS-compliant finish, distinguishing it from legacy non-RoHS variants.
Is 1PMT5936AE3/TR13 suitable for ESD protection applications?
Yes, the 1PMT5936AE3/TR13 has an ESD rating exceeding 16 kV per Human Body Model, making it suitable for primary or secondary ESD clamping in I/O protection networks. Its 30 V breakdown allows use on 24 V systems, and its 3.0 W rating enables absorption of moderate-energy transients - though dedicated TVS diodes may be preferred for very fast, high-energy surges.
What is the thermal resistance specification for 1PMT5936AE3/TR13?
The 1PMT5936AE3/TR13 has a thermal resistance of 30°C/W from junction to TAB 1. This value assumes optimal soldering to a large copper area acting as a heatsink. It enables calculation of junction temperature rise under operating conditions: TJ = TTAB1 + (P × 30). Accurate thermal design requires verifying TAB 1 temperature in the final layout via thermal simulation or measurement.
1PMT5936AE3/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):
- 30 V
- Tolerance:
- ±10%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 28 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 22.8 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
1PMT5936AE3/TR13 FAQ
1.How can I place an order for 1PMT5936AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5936AE3/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 1PMT5936AE3/TR13 reliable?
The price and inventory of 1PMT5936AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5936AE3/TR13 is usually 5 days.
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1PMT5936AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5936AE3/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 1PMT5936AE3/TR13?
For technical support, including 1PMT5936AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5936AE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5936AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5936AE3/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 1PMT5936AE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5936AE3/TR13?
All 1PMT5936AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5936AE3/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 1PMT5936AE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5936AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5936AE3/TR13 Tags

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