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Microchip Technology 1PMT5935AE3/TR7
- Part No.:
- 1PMT5935AE3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5935AE3/TR7.pdf
- Description:
- DIODE ZENER 27V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,623
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Product details
Overview
1PMT5935AE3/TR7 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 1PMT5935AE3/TR7 datasheet, 1PMT5935AE3/TR7 pinout, 1PMT5935AE3/TR7 application, or 1PMT5935AE3/TR7 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low knee impedance, and compatibility with automated SMT assembly.
Technical Context
This device operates as a two-terminal voltage-regulating diode with sharp Zener breakdown at 27 V nominal. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and mechanical stability during reflow soldering.
Electrical behavior is defined at TL = 30°C with IZT = 13.9 mA; dynamic impedance (ZZT = 23 Ω) and knee impedance (ZZK = 0.25 Ω) are measured under specified AC superposition and low-current conditions, supporting stable regulation across load transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 27 V ±5% - defines clamping threshold for overvoltage protection circuits |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables high-power regulation without external heatsink in compact layouts |
| Test Current | 13.9 mA - operating point where voltage and impedance specs are guaranteed |
| Dynamic Impedance | 23 Ω - determines output voltage deviation under varying load current |
| Reverse Leakage | ≤1 µA at 20.6 V - ensures minimal standby power loss in bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB - supports thermal design with direct PCB copper pad conduction |
| ESD Rating | >16 kV HBM - provides robustness against handling and system-level electrostatic discharge |
Pinout & Package
The 1PMT5935AE3/TR7 uses a DO-216 molded surface-mount package with a full metallic bottom and integral heat-sink locking tab. Cathode is designated by TAB 1; mounting orientation is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal path and electrical cathode connection; must be soldered to large copper area for thermal management |
| Lead 2 | Anode | Standard anode terminal; connects to lower-potential node in reverse-biased configuration |
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 |
| Full metallic bottom | Eliminates solder flux entrapment risk and improves thermal transfer to PCB ground plane |
| Integral heat-sink locking tab | Acts as mechanical anchor and thermal conduit-reduces junction temperature rise by ~30°C/W vs. standard SOD packages |
| ESD robustness | >16 kV HBM rating allows safe handling and operation in unshielded industrial environments |
Applications
| Industrial Power Supply Monitoring | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Monitoring 24 V battery rail for undervoltage/overvoltage events in programmable logic controllers. IC Role / Device Role / Timing Role: Zener reference for comparator input threshold setting. Use Value: Tight 27 V ±5% tolerance ensures accurate trip point; 3.0 W rating sustains transient surges without degradation. | Use Scenario: Clamping CAN transceiver supply line against load-dump spikes up to 40 V. IC Role / Device Role / Timing Role: Overvoltage protection element shunting excess energy to ground. Use Value: Low 23 Ω dynamic impedance maintains clamping voltage stability under fast-rising transients. |
| Programmable Logic Controller I/O Protection | Medical Diagnostic Equipment Power Rails |
Use Scenario: Protecting analog sensor inputs from ESD and cable-induced surges in factory-floor PLCs. IC Role / Device Role / Timing Role: Primary ESD suppression diode on 3.3 V or 5 V signal lines. Use Value: >16 kV HBM rating meets IEC 61000-4-2 Level 4; metallic bottom ensures reliable grounding path. | Use Scenario: Stabilizing auxiliary 12 V bias supply for imaging sensor bias circuitry. IC Role / Device Role / Timing Role: Precision voltage reference for DAC output calibration. Use Value: Low 1 µA reverse leakage minimizes error in high-impedance reference dividers. |
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 at 10 A - higher surge capacity but looser voltage control | Designed for transient suppression, not precision regulation | Select when protecting against ISO 7637-2 pulses; avoid for reference use due to wide clamping window |
| BZX84-C27 | SOT-23 Zener, 27 V ±5%, 300 mW - same voltage grade but 10× lower power rating | Limited to low-power biasing; cannot sustain 3 W continuous dissipation | Choose only for space-constrained, low-current applications; requires derating above 50°C ambient |
Compared with SMCJ27A and BZX84-C27, the 1PMT5935AE3/TR7 uniquely balances 3.0 W steady-state power handling, 27 V precision regulation, and SMT manufacturability-making it suitable for industrial power monitoring where both accuracy and ruggedness are required.
Availability
1PMT5935AE3/TR7 is available at Aetrix Electronics and suitable for industrial power supply monitoring, automotive body control modules, programmable logic controller I/O protection, and medical diagnostic equipment power rails requiring stable component supply and long-term lifecycle support.
Supply support for 1PMT5935AE3/TR7 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 surface-mount voltage regulation in harsh-environment systems where thermal performance, ESD resilience, and automated assembly compatibility are critical.
FAQ
What is the Zener voltage tolerance for 1PMT5935AE3/TR7?
The 1PMT5935AE3/TR7 has a standard Zener voltage tolerance of ±5% at 27 V, measured at 13.9 mA test current and TAB 1 temperature of 30°C. Tighter tolerances (±2% and ±1%) are available with suffixes C and D, respectively, but the base part number 1PMT5935AE3/TR7 specifies ±5%.
How is thermal management handled in the 1PMT5935AE3/TR7 package?
The 1PMT5935AE3/TR7 uses a Powermite® package with a full metallic bottom and integral locking tab that serves as the primary thermal path. Its junction-to-TAB thermal resistance is 30°C/W, meaning effective cooling requires direct soldering of TAB 1 to a large copper area on the PCB to dissipate its 3.0 W maximum power.
Can 1PMT5935AE3/TR7 be used in place of through-hole Zeners like 1N5254B?
Yes, the 1PMT5935AE3/TR7 provides equivalent 27 V regulation but in a surface-mount Powermite® package. Unlike the axial 1N5254B (500 mW), the 1PMT5935AE3/TR7 delivers 3.0 W power handling and superior thermal performance-however, PCB layout must accommodate its DO-216 footprint and TAB 1 thermal pad, not a direct drop-in replacement.
What is the maximum reverse leakage current for 1PMT5935AE3/TR7?
The maximum reverse leakage current for 1PMT5935AE3/TR7 is 1 µA at a reverse voltage of 20.6 V and ambient temperature of 30°C. This low leakage supports high-impedance reference applications and minimizes quiescent power loss in always-on circuits.
Is 1PMT5935AE3/TR7 compatible with lead-free reflow processes?
Yes, the 1PMT5935AE3/TR7 is qualified for lead-free reflow soldering per J-STD-020. Its Powermite® package withstands peak temperatures up to 260°C, and the full metallic bottom ensures uniform thermal distribution-critical for avoiding voiding or delamination during high-temperature profiles.
1PMT5935AE3/TR7 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:
- ±10%
- 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
1PMT5935AE3/TR7 FAQ
1.How can I place an order for 1PMT5935AE3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5935AE3/TR7 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 1PMT5935AE3/TR7 reliable?
The price and inventory of 1PMT5935AE3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5935AE3/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5935AE3/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5935AE3/TR7 transactions.
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4.How is shipping managed for 1PMT5935AE3/TR7?
1PMT5935AE3/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5935AE3/TR7 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 1PMT5935AE3/TR7?
For technical support, including 1PMT5935AE3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5935AE3/TR7 requirements.
6.How does Aetrix verify that 1PMT5935AE3/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5935AE3/TR7 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 1PMT5935AE3/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5935AE3/TR7?
All 1PMT5935AE3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5935AE3/TR7, 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 1PMT5935AE3/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5935AE3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5935AE3/TR7 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
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BZT52C3V6LP-7
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SMAZ12-13-F
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