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Microchip Technology 1PMT5935E3/TR13
- Part No.:
- 1PMT5935E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5935E3/TR13.pdf
- Description:
- DIODE ZENER 27V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,389
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Product details
Overview
1PMT5935E3/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 1 µA max reverse leakage at 20.6 V. It serves as a precision voltage reference or overvoltage clamp in DC power rails of industrial control modules.
For engineers reviewing the 1PMT5935E3/TR13 datasheet, 1PMT5935E3/TR13 pinout, 1PMT5935E3/TR13 application, or 1PMT5935E3/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 (700 Ω at 0.25 mA), and compatibility with EIA-481 tape-and-reel automated assembly.
Technical Context
This Zener diode operates in reverse breakdown mode to regulate or clamp voltage with tight voltage stability across temperature (–55°C to +150°C junction/storage range). Its Powermite® package integrates a full metallic bottom and locking tab that functions as both mechanical anchor and thermal path to PCB copper.
The device exhibits low reverse leakage (≤1 µA at VR = 20.6 V), defined knee characteristics (IZK = 0.25 mA, ZZK = 700 Ω), and specified dynamic impedance (ZZT = 23 Ω at IZT = 13.9 mA), enabling stable regulation under varying load and line conditions in compact power management circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27 V ±5% at IZT = 13.9 mA, TL = 30°C - defines nominal clamping level for overvoltage protection |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous DC power handling with PCB heatsinking |
| Dynamic Impedance | 23 Ω at IZT = 13.9 mA - determines output voltage variation under load current changes |
| Knee Impedance | 700 Ω at IZK = 0.25 mA - indicates regulation onset sharpness near breakdown threshold |
| Reverse Leakage | ≤1 µA at VR = 20.6 V - ensures minimal standby current in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB1 - quantifies temperature rise per watt dissipated into PCB pad |
| ESD Rating | >16 kV per Human Body Model - supports robust handling in automated SMT lines without special ESD controls |
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 thermal and electrical connection point; must be soldered to large copper area for thermal management |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; used for circuit connection |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3 W power handling in footprint smaller than DO-41 |
| Integral heat-sink locking tab | Provides mechanical retention during reflow and reduces thermal resistance via direct metal-to-PCB conduction |
| Full metallic bottom | Eliminates solder flux entrapment risk, improving long-term solder joint reliability and process yield |
| ESD robustness | >16 kV HBM rating allows safe handling in standard manufacturing environments without added protection |
Applications
| Industrial Power Supply Monitoring | Automotive Body Control Module |
|---|---|
Use Scenario: Monitoring 24 V battery rail for undervoltage/overvoltage events in programmable logic controllers. IC Role / Device Role / Timing Role: Zener clamping element in comparator reference divider network. Use Value: Stable 27 V reference enables accurate trip-point detection despite ambient temperature swings from –40°C to +125°C. | Use Scenario: Protecting microcontroller I/O pins from load-dump transients in door module ECUs. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 5 V regulated supply rail. Use Value: 3 W surge capability absorbs transient energy without degradation, meeting ISO 7637-2 Pulse 5a requirements. |
| Telecom DC-DC Converter Feedback | Medical Sensor Signal Conditioning |
Use Scenario: Providing precise feedback voltage for isolated flyback converter regulating ±15 V outputs. IC Role / Device Role / Timing Role: Secondary-side voltage reference in optocoupler-coupled feedback loop. Use Value: Low dynamic impedance (23 Ω) minimizes output voltage ripple and improves load regulation accuracy. | Use Scenario: Biasing and protecting instrumentation amplifier inputs in portable ECG front-ends. IC Role / Device Role / Timing Role: Input-stage overvoltage limiter and reference stabilizer. Use Value: ≤1 µA reverse leakage preserves high-impedance sensor node integrity and prevents signal offset drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ27A | TVS diode (unidirectional), 27 V standoff, 43.5 V clamping, 1500 W peak pulse power | Designed for transient suppression, not precision DC regulation | Select when surge immunity (IEC 61000-4-5) is primary requirement over voltage tolerance and leakage |
| BZX84-C27 | SOT-23 package, 27 V ±5%, 300 mW power, 80 Ω dynamic impedance, 100 nA leakage | Limited power handling and thermal performance; unsuitable for >100 mA continuous operation | Select only for low-power bias/reference use where PCB space is critical and thermal load is negligible |
Compared with SMCJ27A and BZX84-C27, the 1PMT5935E3/TR13 uniquely balances 3 W DC power capability, low dynamic impedance, and industrial-grade thermal design-making it suitable for sustained regulation in thermally constrained, medium-power applications where TVS response time or ultra-low leakage are secondary concerns.
Availability
1PMT5935E3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, telecom DC-DC converters, and medical sensor interfaces requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1PMT5935E3/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 delivers high-power surface-mount voltage regulation with enhanced thermal performance and robust packaging-designed specifically for mission-critical power management in harsh-environment systems.
FAQ
What is the zener voltage tolerance for 1PMT5935E3/TR13?
The 1PMT5935E3/TR13 has a nominal zener voltage of 27 V with a standard tolerance of ±5%, measured at IZT = 13.9 mA and TAB temperature = 30°C. Tighter tolerances (±2% and ±1%) are available under suffixes C and D respectively, but the E3 suffix denotes the standard ±5% version. This tolerance directly impacts regulation accuracy in precision reference applications.
How is thermal management handled for 1PMT5935E3/TR13 in PCB layout?
Thermal management for 1PMT5935E3/TR13 relies on soldering TAB 1-the cathode terminal-to a large copper pour acting as a heatsink. With a junction-to-TAB thermal resistance of 30°C/W, maintaining TAB 1 at ≤60°C ensures 3.0 W continuous operation. Layout must avoid thermal isolation of TAB 1 and provide ≥25 mm² of 1 oz copper connected via multiple thermal vias to internal ground planes.
Can 1PMT5935E3/TR13 be used in place of through-hole Zeners like 1N5254B?
Yes, 1PMT5935E3/TR13 can replace 1N5254B (27 V, 500 mW) in applications requiring higher power, but not as a direct drop-in due to different package (Powermite® vs. DO-35) and thermal path. The 1PMT5935E3/TR13 delivers six times the power (3.0 W vs. 0.5 W) and lower dynamic impedance (23 Ω vs. ~35 Ω), making it suitable for upgraded thermal designs-not board-level swaps without layout revision.
What does the "TR13" suffix indicate in 1PMT5935E3/TR13?
The "TR13" suffix in 1PMT5935E3/TR13 specifies tape-and-reel packaging per EIA-481 standard on a 13-inch reel containing 12,000 units. This format is optimized for high-volume automated SMT placement. The "E3" portion denotes the ±5% zener voltage tolerance and RoHS-compliant finish; TR13 does not affect electrical specifications but defines logistics and handling configuration.
Is 1PMT5935E3/TR13 suitable for automotive AEC-Q200 compliance?
The 1PMT5935E3/TR13 is not AEC-Q200 qualified. While it operates across –55°C to +150°C and meets industrial reliability standards (ISO 9001 certified manufacturing), Microsemi's official qualification data does not list this part under AEC-Q200 stress testing. For automotive applications requiring AEC-Q200, consult Microchip's qualified Zener portfolio or perform independent qualification per customer requirements.
1PMT5935E3/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:
- ±20%
- 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
1PMT5935E3/TR13 FAQ
1.How can I place an order for 1PMT5935E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5935E3/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 1PMT5935E3/TR13 reliable?
The price and inventory of 1PMT5935E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5935E3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5935E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5935E3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5935E3/TR13?
1PMT5935E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5935E3/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 1PMT5935E3/TR13?
For technical support, including 1PMT5935E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5935E3/TR13 requirements.
6.How does Aetrix verify that 1PMT5935E3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5935E3/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 1PMT5935E3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5935E3/TR13?
All 1PMT5935E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5935E3/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 1PMT5935E3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5935E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5935E3/TR13 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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