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Microchip Technology 1PMT5934A/TR7
- Part No.:
- 1PMT5934A/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5934A/TR7.pdf
- Description:
- DIODE ZENER 24V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,580
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Product details
Overview
1PMT5934A/TR7 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 max reverse leakage at 18.2 V. It serves as a precision voltage reference or overvoltage clamp in power supply regulation and ESD-protected I/O circuits.
For engineers reviewing the 1PMT5934A/TR7 datasheet, 1PMT5934A/TR7 pinout, 1PMT5934A/TR7 application, or 1PMT5934A/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 (700 Ω at 0.25 mA), and compatibility with automated SMT assembly per EIA-481 tape-and-reel packaging.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal zener voltage of 24 V at 15.6 mA (IZT), exhibiting tight regulation due to low dynamic impedance (19 Ω) and controlled knee characteristics (700 Ω at IZK = 0.25 mA). Its full metallic bottom and integral locking tab enable efficient heat transfer to the PCB pad, supporting stable 3.0 W power handling when mounted on adequate copper area.
The device is specified across -55°C to +150°C junction temperature range, with forward voltage of 1.2 V at 200 mA and thermal resistance of 30°C/W from junction to TAB 1. Cathode is unambiguously designated by TAB 1, and mounting orientation is unrestricted per mechanical specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24 V ±5% at IZT = 15.6 mA - defines stable regulation point for reference or clamping |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - requires thermal pad design with ≥30°C/W path to ambient |
| Dynamic Impedance (ZZT) | 19 Ω at IZT - ensures minimal output voltage variation under load current changes |
| Knee Impedance (ZZK) | 700 Ω at IZK = 0.25 mA - indicates sharp turn-on behavior near regulation threshold |
| Reverse Leakage (IR) | ≤1 µA at VR = 18.2 V - guarantees low standby power loss in high-impedance bias networks |
| ESD Rating | >16 kV per Human Body Model - enables direct placement on ESD-sensitive signal lines without external protection |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - mandates direct thermal connection of TAB 1 to PCB copper for reliability |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1; weight ≈ 0.016 g; compliant with DO-216 outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat-sinking terminal; must be soldered to thermal pad for 3.0 W operation |
| Lead 2 | Anode | Standard anode connection; no thermal function; routed as signal/power return |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W capability in footprint smaller than DO-41 |
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term solder joint integrity |
| Integral locking tab | Acts as built-in heat sink - reduces thermal resistance by anchoring TAB 1 directly to PCB copper |
| ESD robustness | >16 kV HBM rating allows direct integration into unprotected I/O paths without added TVS staging |
Applications
| Industrial Power Supply Regulation | Automotive Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converter secondary-side error amplifiers. IC Role / Device Role / Timing Role: Precision shunt reference providing 24 V regulation point for optocoupler biasing. Use Value: Low 19 Ω dynamic impedance maintains <±0.5% output voltage accuracy across line/load transients. | Use Scenario: Clamping analog sensor outputs (e.g., pressure, temperature) against load-dump transients in 12 V/24 V vehicle systems. IC Role / Device Role / Timing Role: Overvoltage protector limiting signal rail to 24 V before ADC input stage. Use Value: >16 kV HBM rating withstands repeated ESD events without parameter shift or failure. |
| Telecom Line Interface Protection | Programmable Logic Controller (PLC) I/O Modules |
Use Scenario: Protecting RS-485 transceiver inputs from induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary clamping element in multi-stage protection circuit, placed closest to connector. Use Value: 3.0 W power rating absorbs 10/1000 µs surge energy up to 30 J when used with series impedance. | Use Scenario: Providing regulated 24 V reference for analog input channel calibration in modular PLC backplanes. IC Role / Device Role / Timing Role: Stable voltage reference source for 16-bit DACs and precision op-amps. Use Value: ±5% tolerance and low 1 µA leakage ensure <0.1% full-scale error contribution over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5354B | Same 24 V nominal, but DO-41 through-hole package; 3.0 W rating at 75°C ambient; higher thermal resistance (50°C/W) | Requires manual or wave soldering; unsuitable for high-density SMT layouts | Select when legacy through-hole assembly or higher ambient temp derating is required |
| BZX84-C24 | SOT-23 package; 24 V ±5%; 300 mW rating; 80 Ω dynamic impedance at 5 mA | Limited to low-power bias/reference use; cannot sustain 3.0 W clamping duty | Select only for space-constrained low-energy signal-level regulation |
Compared with 1N5354B and BZX84-C24, the 1PMT5934A/TR7 uniquely combines SMT compatibility, 3.0 W power handling, and 30°C/W thermal resistance - making it the only option among the three suitable for high-energy transient suppression in automated production environments.
Availability
1PMT5934A/TR7 is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor interfaces, telecom line protection, and PLC I/O modules requiring stable component supply with full traceability and lifecycle support.
Supply support for 1PMT5934A/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 family, including the 1PMT5934A/TR7, was engineered to deliver high-power surface-mount voltage regulation with superior thermal performance and ESD robustness for mission-critical power and interface circuits.
FAQ
What is the zener voltage tolerance for 1PMT5934A/TR7?
The 1PMT5934A/TR7 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%, ±1%) are available with suffixes C and D respectively, but the base 1PMT5934A/TR7 part uses the ±5% grade per MSC0995 Rev F specification.
How is thermal management implemented in the 1PMT5934A/TR7 package?
The 1PMT5934A/TR7 uses a Powermite® package with a full metallic bottom and integral locking tab that functions as a heat sink. Thermal resistance is specified at 30°C/W junction-to-TAB 1, requiring direct soldering of TAB 1 to a thermally robust PCB pad to achieve the full 3.0 W power rating at TAB 1 = 60°C.
Is the 1PMT5934A/TR7 compatible with automated SMT assembly processes?
Yes, the 1PMT5934A/TR7 is designed for automated insertion and reflow soldering. It ships in EIA-481 standard tape-and-reel format (7-inch reel: 3,000 pieces; 13-inch reel: 12,000 pieces) and features a unique locking tab that prevents rotation during pick-and-place, ensuring consistent orientation and reliable placement yield.
What is the maximum reverse leakage current for 1PMT5934A/TR7?
The 1PMT5934A/TR7 has a maximum reverse leakage current of 1 µA at a reverse voltage of 18.2 V, as specified in the MSC0995 datasheet. This low leakage supports high-impedance bias networks and precision reference applications where standby current must be minimized.
Does the 1PMT5934A/TR7 have ESD protection capability?
Yes, the 1PMT5934A/TR7 is rated for >16 kV per Human Body Model (HBM) ESD, making it suitable for direct integration into unprotected I/O paths. This rating is intrinsic to the device structure and does not require external components to meet IEC 61000-4-2 Level 4 requirements when properly laid out.
1PMT5934A/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):
- 24 V
- Tolerance:
- ±10%
- 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
1PMT5934A/TR7 FAQ
1.How can I place an order for 1PMT5934A/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5934A/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 1PMT5934A/TR7 reliable?
The price and inventory of 1PMT5934A/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5934A/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5934A/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5934A/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5934A/TR7?
1PMT5934A/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5934A/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 1PMT5934A/TR7?
For technical support, including 1PMT5934A/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5934A/TR7 requirements.
6.How does Aetrix verify that 1PMT5934A/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5934A/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 1PMT5934A/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5934A/TR7?
All 1PMT5934A/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5934A/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 1PMT5934A/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5934A/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5934A/TR7 Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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BZT52C3V6LP-7
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SMAZ12-13-F
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