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Microchip Technology 1PMT5935BE3/TR13
- Part No.:
- 1PMT5935BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5935BE3/TR13.pdf
- Description:
- DIODE ZENER 27V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,277
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Product details
Overview
1PMT5935BE3/TR13 from Microsemi is a 27 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 23 Ω dynamic impedance at 13.9 mA test current and thermal resistance of 30°C/W junction-to-TAB. It serves as a precision voltage reference or overvoltage clamp in power supply regulation circuits.
For engineers reviewing the 1PMT5935BE3/TR13 datasheet, 1PMT5935BE3/TR13 pinout, 1PMT5935BE3/TR13 application, or 1PMT5935BE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, power derating above 60°C, knee current (0.25 mA), reverse leakage (<1 µA at 20.6 V), and ESD robustness (>16 kV HBM).
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 mechanical stability during reflow or wave soldering.
The device exhibits low reverse leakage (≤1 µA at VR = 20.6 V), 23 Ω dynamic impedance at IZT = 13.9 mA, and a thermal resistance of 30°C/W from junction to TAB 1 - enabling reliable operation up to +150°C junction temperature when properly heatsinked.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 27 V ±5% at IZT = 13.9 mA, TL = 30°C - defines stable regulation point under nominal bias |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous DC power before thermal derating applies |
| Dynamic Impedance | 23 Ω at IZT = 13.9 mA - determines output voltage variation under load current changes |
| Knee Current | 0.25 mA - minimum current needed to enter usable regulation region near VZ |
| Reverse Leakage | ≤1 µA at VR = 20.6 V - ensures minimal standby power loss in clamping applications |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - quantifies temperature rise per watt, critical for PCB copper pad sizing |
| ESD Rating | >16 kV per Human Body Model - supports handling without external protection in assembly |
Pinout & Package
Package: Powermite® (DO-216AA), molded surface-mount package 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 cathode connection; must be soldered to thermal pad for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal; mounted opposite TAB 1, electrically isolated from package body |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W power handling in footprint smaller than DO-41 |
| Integral heat-sink locking tab | Provides mechanical anchoring and direct thermal path from junction to PCB copper, reducing θJA by ~40% vs standard SOD-123 |
| Full metallic bottom | Eliminates solder flux entrapment risk during assembly, improving long-term reliability and void-free solder joints |
| ESD robustness >16 kV HBM | Allows direct handling and board-level integration without additional ESD protection circuitry |
Applications
| Power Supply Voltage Reference | Overvoltage Clamp for 24 V Systems |
|---|---|
Use Scenario: Stabilizing feedback node in isolated DC-DC converter secondary-side regulation. IC Role / Device Role / Timing Role: Precision shunt reference providing stable 27 V threshold for optocoupler-driven error amplifier. Use Value: Maintains ±1.35 V regulation accuracy over temperature and line, enabling <±1.5% output voltage tolerance. | Use Scenario: Protecting 24 V industrial I/O circuitry against transient surges exceeding 30 V. IC Role / Device Role / Timing Role: Fast-acting crowbar element clamping rail voltage before downstream ICs exceed absolute maximum ratings. Use Value: Activates at 27 V with <100 ns response, limiting peak excursion to ≤28.5 V under 1 A surge. |
| Programmable Current Source Bias | Temperature-Stable Sensor Excitation |
Use Scenario: Setting bias current for high-precision op-amp based current mirrors in metrology equipment. IC Role / Device Role / Timing Role: Fixed-voltage reference establishing IOUT = VZ / RSET in two-terminal current source topology. Use Value: Delivers 13.9 mA test current with <0.05%/°C TC over –40°C to +85°C ambient due to low ZZT and stable VZ. | Use Scenario: Exciting platinum RTD bridges in HVAC control modules requiring stable excitation voltage. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage source powering Wheatstone bridge with matched resistor ratios. Use Value: Enables <0.1°C measurement resolution via 27 V reference with <5 ppm/°C drift contribution over operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF27A (ON Semiconductor) | 27 V, 1.0 W, SOD-123 package, 40 Ω ZZT, no metallic thermal tab | Limited to lower-power biasing; unsuitable for sustained 3.0 W clamping | Select when board space is constrained and thermal load ≤1 W |
| BZX84-C27 (Diodes Inc.) | 27 V, 300 mW, SOT-23, 45 Ω ZZT, 100 nA IR at 21.6 V | Only viable for signal-level referencing; cannot handle >300 mW continuous dissipation | Choose for low-current sensor bias where cost and size outweigh power needs |
Compared with SMF27A and BZX84-C27, the 1PMT5935BE3/TR13 uniquely delivers 3.0 W power handling in a surface-mount package with integrated thermal tab and <1 µA leakage - making it the only option among the three suitable for industrial-grade overvoltage protection and high-stability power supply references.
Availability
1PMT5935BE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, programmable logic controller (PLC) I/O protection, and precision sensor excitation circuits requiring stable component supply and long-lifecycle support.
Supply support for 1PMT5935BE3/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 1PMT5935BE3/TR13, was engineered for high-power density voltage regulation in space-constrained, thermally demanding environments - particularly where automatic assembly and long-term reliability are mandatory.
FAQ
What is the Zener voltage tolerance for 1PMT5935BE3/TR13?
The 1PMT5935BE3/TR13 has a nominal Zener voltage of 27 V with a standard tolerance of ±5%, as confirmed in the MSC0995.PDF datasheet. Tighter tolerances of ±2% (suffix C) and ±1% (suffix D) are available but not applicable to this specific E3/TR13 variant. The voltage is measured at IZT = 13.9 mA with TAB 1 held at 30°C, and the 1PMT5935BE3/TR13 meets this specification across its qualified temperature range.
How much power can 1PMT5935BE3/TR13 dissipate continuously?
The 1PMT5935BE3/TR13 is rated for 3.0 W DC power dissipation when TAB 1 is maintained at 60°C. This rating assumes adequate PCB copper area for heat spreading. Derating is required above 60°C - approximately linear to zero at 150°C junction temperature. The thermal resistance of 30°C/W junction-to-TAB means a 1 W load raises junction temperature by 30°C above TAB temperature, so proper thermal design is essential for full 3.0 W use of the 1PMT5935BE3/TR13.
Is 1PMT5935BE3/TR13 compatible with lead-free reflow processes?
Yes, the 1PMT5935BE3/TR13 is qualified for standard lead-free reflow profiles, including JEDEC J-STD-020-compliant peak temperatures up to 260°C. Its Powermite® package uses matte tin-plated terminals and a thermally robust molded body. The full metallic bottom also improves thermal uniformity during reflow, reducing warpage risk. No special pre-bake or process adjustments are required for the 1PMT5935BE3/TR13 when using industry-standard Pb-free assembly.
What is the reverse leakage current specification for 1PMT5935BE3/TR13?
The reverse leakage current for 1PMT5935BE3/TR13 is specified as ≤1 µA at VR = 20.6 V (i.e., 76% of VZ), measured at TL = 30°C. This low leakage supports energy-efficient clamping and referencing in battery-powered or low-quiescent-current systems. The value remains stable across –55°C to +125°C ambient, with typical leakage increasing to <5 µA at +125°C - a performance verified in the 1PMT5935BE3/TR13 characterization data.
Does 1PMT5935BE3/TR13 have a defined polarity marking, and how is it identified?
Yes, the 1PMT5935BE3/TR13 uses TAB 1 as the cathode, clearly designated by physical geometry - the larger, flat metallic tab on one side of the Powermite® package. There is no color band or ink mark; polarity is determined solely by tab orientation per the mechanical drawing in MSC0995.PDF. Mounting orientation is unrestricted, but correct cathode-to-ground or cathode-to-rail connection is essential for proper Zener operation in the 1PMT5935BE3/TR13.
1PMT5935BE3/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):
- 27 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 23 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 20.6 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
1PMT5935BE3/TR13 FAQ
1.How can I place an order for 1PMT5935BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5935BE3/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 1PMT5935BE3/TR13 reliable?
The price and inventory of 1PMT5935BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5935BE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5935BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5935BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5935BE3/TR13?
1PMT5935BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5935BE3/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 1PMT5935BE3/TR13?
For technical support, including 1PMT5935BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5935BE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5935BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5935BE3/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 1PMT5935BE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5935BE3/TR13?
All 1PMT5935BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5935BE3/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 1PMT5935BE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5935BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5935BE3/TR13 Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
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MMSZ5231B-7-F
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