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Microchip Technology 1PMT5934E3/TR13
- Part No.:
- 1PMT5934E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5934E3/TR13.pdf
- Description:
- DIODE ZENER 24V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,653
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Product details
Overview
1PMT5934E3/TR13 from Microsemi is a 24 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 19 Ω dynamic impedance at 15.6 mA test current and <1 µA reverse leakage at 18.2 V, used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the 1PMT5934E3/TR13 datasheet, 1PMT5934E3/TR13 pinout, 1PMT5934E3/TR13 application, or 1PMT5934E3/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, and compatibility with automated SMT assembly per EIA-481 tape-and-reel packaging.
Technical Context
This device operates as a two-terminal voltage reference with cathode designated by TAB 1, requiring no external biasing circuitry. Its full metallic bottom and integral heat sink locking tab enable direct thermal conduction to the PCB pad, supporting stable 3.0 W power handling without heatsink augmentation.
The 1PMT5934E3/TR13 exhibits tight voltage regulation across temperature (–55°C to +150°C junction range) and maintains low reverse leakage (<1 µA at VR = 18.2 V), enabling reliable clamping in transient suppression and reference applications where long-term stability under thermal stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24 V ±5% at IZT = 15.6 mA, TC = 30°C - defines nominal regulation point with production-grade tolerance |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - maximum continuous DC power handled via metal-tab thermal path |
| Dynamic Impedance (ZZT) | 19 Ω at IZT = 15.6 mA - determines output voltage variation under load current changes |
| Reverse Leakage (IR) | <1 µA at VR = 18.2 V - ensures minimal standby current in high-impedance clamp or reference nodes |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - quantifies temperature rise per watt, critical for PCB copper area design |
| ESD Rating | >16 kV per Human Body Model - supports robust handling in unshielded manufacturing environments |
| Knee Current (IZK) | 0.25 mA - minimum current needed to enter regulated region, enabling low-power sensing |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat sink locking tab; cathode identified by TAB 1; weight ≈ 0.016 g; compatible with EIA-481 tape-and-reel (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 large copper pour for heat dissipation and circuit return |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; connects to regulated node or current-limiting resistor |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W power handling previously limited to through-hole DO-41/DO-15 devices |
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving solder joint reliability and reducing post-assembly cleaning requirements |
| Integral heat sink locking tab | Provides mechanical anchoring and direct thermal conduction path from junction to PCB, lowering effective thermal resistance |
| ESD robustness | >16 kV HBM rating allows safe handling in standard electronics assembly lines without special ESD controls |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or forward converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Zener reference providing precise 24 V threshold to TL431-like shunt regulator or discrete error amplifier. Use Value: Stable 24 V reference enables ±1% output regulation over line/load/temperature with minimal drift due to low ZZT and tight VZ tolerance. | Use Scenario: Providing excitation voltage and calibration reference for 4–20 mA current-loop pressure transmitters. IC Role / Device Role / Timing Role: Precision voltage clamp and reference source for analog front-end signal conditioning circuitry. Use Value: Low reverse leakage (<1 µA) prevents loading of high-impedance sensor bridges; 30°C/W thermal resistance ensures stable reference under ambient temperature swings. |
| Overvoltage Protection Clamp | Programmable Logic Controller Input Protection |
Use Scenario: Clamping transient surges on 24 V DC control bus in factory automation systems. IC Role / Device Role / Timing Role: Fast-response voltage limiter absorbing energy from inductive kickback or EFT events. Use Value: 3.0 W power rating and 19 Ω ZZT allow sustained clamping at 24 V without thermal runaway during repetitive 100 ns–1 µs transients. | Use Scenario: Protecting digital input channels of PLC modules against accidental 24 V supply miswiring or surge coupling. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed before series current-limiting resistor and input Schottky diode. Use Value: >16 kV HBM ESD rating ensures survival during field maintenance; metallic tab enables direct PCB thermal sinking to meet IEC 61000-4-5 Level 3 surge immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5934BTR | Same 24 V ±5%, but in DO-41 through-hole package; higher thermal resistance (~50°C/W); no metallic tab | Requires manual or wave-solder assembly; unsuitable for high-density SMT layouts or thermally constrained PCBs | Select only when legacy through-hole compatibility or lower cost per unit outweighs SMT efficiency and thermal performance |
| SMBJ24A | TVS diode (not Zener); 24 V standoff, 38.9 V breakdown; 600 W peak pulse power; bidirectional | Designed for transient suppression, not precision regulation; lacks tight VZ tolerance and low ZZT | Use only for surge-only protection; never as voltage reference or feedback element due to wide breakdown hysteresis and no DC regulation capability |
Compared with 1N5934BTR and SMBJ24A, the 1PMT5934E3/TR13 uniquely combines SMT manufacturability, 3.0 W DC power handling, and precision regulation-enabling compact, thermally efficient, and production-ready voltage reference designs where DO-41 footprint or TVS nonlinearity are unacceptable.
Availability
1PMT5934E3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, overvoltage protection circuits, and programmable logic controller input stages requiring stable component supply and consistent thermal performance.
Supply support for 1PMT5934E3/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 designed to deliver high-power surface-mount voltage regulation with superior thermal performance and automated assembly compatibility-addressing the need for robust, space-constrained alternatives to legacy through-hole Zeners.
FAQ
What is the Zener voltage tolerance for 1PMT5934E3/TR13?
The 1PMT5934E3/TR13 has a standard Zener voltage tolerance of ±5% at 24 V, measured at 15.6 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 E3 suffix denotes the standard ±5% grade. This tolerance directly impacts regulation accuracy in feedback and reference applications.
How is thermal management implemented in the 1PMT5934E3/TR13 package?
The 1PMT5934E3/TR13 uses a Powermite® package with a full metallic bottom and integral heat sink locking tab (TAB 1) that serves as both cathode and primary thermal conduction path. Its specified thermal resistance is 30°C/W junction-to-TAB, meaning proper PCB copper pour under TAB 1 is essential to maintain 3.0 W power dissipation without exceeding the 150°C max junction temperature.
Is the 1PMT5934E3/TR13 suitable for automated SMT assembly?
Yes, the 1PMT5934E3/TR13 is explicitly designed for automated insertion and reflow soldering. It complies with EIA-481 tape-and-reel standards (13-inch reel, 12,000 pieces), features a mold compound compatible with standard reflow profiles, and its locking tab prevents rotation during placement. The full metallic bottom also eliminates solder flux entrapment-a known reliability risk in fine-pitch SMT processes.
What is the maximum reverse leakage current for 1PMT5934E3/TR13?
The maximum reverse leakage current for 1PMT5934E3/TR13 is <1 µA at a reverse voltage of 18.2 V and ambient temperature of 30°C. This low leakage ensures minimal loading of high-impedance nodes in precision reference and sensor interface circuits, preserving signal integrity and reducing power loss in battery-operated or low-quiescent-current systems.
Does the 1PMT5934E3/TR13 have ESD protection built-in?
Yes, the 1PMT5934E3/TR13 is rated for >16 kV electrostatic discharge per the Human Body Model (HBM), as confirmed in the Microsemi MSC0995 datasheet. This level of ESD robustness allows safe handling and placement in standard electronics manufacturing environments without requiring additional ESD mitigation steps during board assembly.
1PMT5934E3/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):
- 24 V
- Tolerance:
- ±20%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 19 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 18.2 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
1PMT5934E3/TR13 FAQ
1.How can I place an order for 1PMT5934E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5934E3/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 1PMT5934E3/TR13 reliable?
The price and inventory of 1PMT5934E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5934E3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5934E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5934E3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5934E3/TR13?
1PMT5934E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5934E3/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 1PMT5934E3/TR13?
For technical support, including 1PMT5934E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5934E3/TR13 requirements.
6.How does Aetrix verify that 1PMT5934E3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5934E3/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 1PMT5934E3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5934E3/TR13?
All 1PMT5934E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5934E3/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 1PMT5934E3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5934E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5934E3/TR13 Tags
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