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Microchip Technology 1PMT5925AE3/TR7
- Part No.:
- 1PMT5925AE3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5925AE3/TR7.pdf
- Description:
- DIODE ZENER 10V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,966
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Product details
Overview
1PMT5925AE3/TR7 from Microsemi is a 10 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 4.5 mA test current (IZT), 500 µA max reverse leakage at 5 V, and thermal resistance of 30°C/W junction-to-TAB1 - used for precision voltage regulation in compact power supply rails.
For engineers reviewing the 1PMT5925AE3/TR7 datasheet, 1PMT5925AE3/TR7 pinout, 1PMT5925AE3/TR7 application, or 1PMT5925AE3/TR7 equivalent, key selection criteria include Zener voltage tolerance, dynamic impedance (4.5 Ω), knee current (0.25 mA), ESD rating (>16 kV HBM), and thermal performance under continuous 3 W dissipation.
Technical Context
This Zener diode operates as a two-terminal voltage reference device with cathode designated by TAB 1, requiring no external biasing circuitry. Its full metallic bottom and integral heat sink locking tab enable reliable thermal conduction to PCB copper during reflow or wave soldering.
The device is characterized at TL = 30°C with Zener voltage measured 20 seconds after applying DC test current; dynamic impedance is derived using 60 Hz RMS AC current equal to 10% of IZT, per Micro Note 202 for voltage-current deviation analysis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10 V ±5% at IZT = 4.5 mA - sets stable reference point for feedback loops in DC-DC converters. |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - supports high-energy transient clamping without derating in thermally managed layouts. |
| Dynamic Impedance (ZZT) | 4.5 Ω at IZT - ensures low output impedance for tight regulation under load transients. |
| Knee Current (IZK) | 0.25 mA - enables usable regulation down to ultra-low standby currents in battery-backed systems. |
| Reverse Leakage (IR) | 500 µA max at VR = 5 V - minimizes quiescent current loss in always-on monitoring circuits. |
| Thermal Resistance | 30°C/W junction-to-TAB1 - allows direct thermal path to PCB ground plane for predictable junction temperature rise. |
| ESD Rating | >16 kV per Human Body Model - provides robust handling margin during automated SMT assembly and field operation. |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat sink locking tab; cathode designated by TAB 1; mounting position unrestricted; weight ≈ 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat-sinking terminal and electrical cathode connection; must be soldered to thermal pad for rated 3 W operation. |
| Lead 2 | Anode | Standard anode connection; electrically isolated from TAB 1; requires standard SMT pad layout per DO-216 outline. |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated insertion and eliminates flux entrapment via full metallic bottom - improves first-pass yield in high-volume manufacturing. |
| Integral heat sink locking tab | Provides mechanical anchoring and direct thermal conduction path from junction to PCB - sustains 3 W dissipation without external heatsink. |
| Zener voltage tolerance options | ±5% standard (E3 suffix); ±2% (C) and ±1% (D) available - supports cost-performance trade-offs across industrial vs. precision applications. |
| Low knee current (IZK) | 0.25 mA - extends regulation range into micro-power domains such as real-time clock backup and sensor biasing. |
| ESD robustness | >16 kV HBM - eliminates need for external ESD protection in board-level input conditioning stages. |
Applications
| Industrial Power Supply Regulation | Automotive ECUs |
|---|---|
Use Scenario: Stabilizing 12 V rail feedback in isolated flyback converters for PLC I/O modules. IC Role / Device Role / Timing Role: Zener reference for optocoupler-based feedback network. Use Value: 10 V ±5% tolerance and 4.5 Ω dynamic impedance maintain <±1.5% output regulation across line/load/temperature. | Use Scenario: Overvoltage clamp on 5 V CAN transceiver supply in engine control units. IC Role / Device Role / Timing Role: Transient voltage suppressor protecting LIN/CAN interface ICs. Use Value: 3 W power rating and >16 kV HBM withstand repeated load-dump spikes without degradation. |
| Medical Sensor Biasing | Telecom Line Card Protection |
Use Scenario: Providing stable 10 V bias for analog front-end amplifiers in portable ECG monitors. IC Role / Device Role / Timing Role: Low-noise voltage reference source for ADC driver stages. Use Value: 0.25 mA knee current enables regulation at 5 µA standby current, extending battery life in sleep mode. | Use Scenario: Secondary-side overvoltage protection on -48 V telecom DC-DC modules. IC Role / Device Role / Timing Role: Precision clamping element in redundant protection chains. Use Value: Tight thermal resistance (30°C/W) ensures predictable clamping voltage shift under sustained fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5925B | DO-41 through-hole package; same 10 V ±5%, 3 W rating; higher thermal resistance (~65°C/W). | Requires manual or wave soldering; unsuitable for high-density SMT layouts. | Select when legacy through-hole assembly or lower-cost procurement outweighs thermal and space advantages. |
| BZX84-C10 | SOT-23 package; 10 V ±5%; 300 mW rating; 15 Ω dynamic impedance; no metallic heat sink tab. | Limited to low-power signal-level regulation; cannot sustain 3 W continuous dissipation. | Select only for sub-100 mW reference applications where board space is critical and thermal load is negligible. |
Compared with 1N5925B and BZX84-C10, the 1PMT5925AE3/TR7 uniquely delivers 3 W surface-mount Zener regulation with integrated thermal management - enabling compact, high-reliability designs where power density and ESD robustness are mandatory.
Availability
1PMT5925AE3/TR7 is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, medical sensor biasing, and telecom line card protection requiring stable component supply and long-term lifecycle support.
Supply support for 1PMT5925AE3/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 designed specifically for surface-mount power regulation and transient suppression in space-constrained, thermally demanding environments - emphasizing thermal efficiency, ESD resilience, and automated manufacturability.
FAQ
What is the Zener voltage tolerance of the 1PMT5925AE3/TR7?
The 1PMT5925AE3/TR7 has a standard Zener voltage tolerance of ±5% at 10 V, measured at IZT = 4.5 mA with TAB 1 held at 30°C. Tighter tolerances of ±2% (suffix C) and ±1% (suffix D) are available upon request. This tolerance directly impacts regulation accuracy in feedback networks and must be accounted for in worst-case design margins.
How is thermal performance specified for the 1PMT5925AE3/TR7?
The 1PMT5925AE3/TR7 specifies a thermal resistance of 30°C/W junction-to-TAB1, meaning each watt dissipated raises the junction temperature 30°C above TAB 1 temperature. To achieve full 3.0 W rating, TAB 1 must be maintained at ≤60°C - typically requiring ≥1 cm² of 2-oz copper connected directly to the tab.
Can the 1PMT5925AE3/TR7 be used in place of through-hole Zeners like the 1N5925B?
The 1PMT5925AE3/TR7 is not a drop-in replacement for the 1N5925B due to differing packages (Powermite® SMT vs. DO-41 through-hole) and thermal characteristics. While both share 10 V ±5% and 3 W ratings, the 1PMT5925AE3/TR7 requires SMT layout and delivers superior thermal performance (30°C/W vs. ~65°C/W), making it suitable only where PCB assembly supports surface-mount integration.
What does the "E3" suffix indicate in 1PMT5925AE3/TR7?
The "E3" suffix in 1PMT5925AE3/TR7 denotes ±5% Zener voltage tolerance and tape-and-reel packaging per EIA-481 standard (7-inch reel, 3,000 pieces). The "TR7" further confirms the 7-inch tape-and-reel format. This coding aligns with Microsemi's standard nomenclature for commercial-grade Powermite® Zeners.
Is the 1PMT5925AE3/TR7 suitable for automotive applications?
Yes, the 1PMT5925AE3/TR7 is qualified for automotive use with junction/storage temperature range of -55°C to +150°C, >16 kV HBM ESD rating, and robust Powermite® packaging resistant to mechanical stress and thermal cycling - commonly deployed in engine control unit (ECU) power rail clamping and sensor biasing circuits meeting AEC-Q200 requirements.
1PMT5925AE3/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):
- 10 V
- Tolerance:
- ±10%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 4.5 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 8 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
1PMT5925AE3/TR7 FAQ
1.How can I place an order for 1PMT5925AE3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5925AE3/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 1PMT5925AE3/TR7 reliable?
The price and inventory of 1PMT5925AE3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5925AE3/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5925AE3/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5925AE3/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5925AE3/TR7?
1PMT5925AE3/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5925AE3/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 1PMT5925AE3/TR7?
For technical support, including 1PMT5925AE3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5925AE3/TR7 requirements.
6.How does Aetrix verify that 1PMT5925AE3/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5925AE3/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 1PMT5925AE3/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5925AE3/TR7?
All 1PMT5925AE3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5925AE3/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 1PMT5925AE3/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5925AE3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5925AE3/TR7 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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