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Microchip Technology 1PMT5925A/TR7
- Part No.:
- 1PMT5925A/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5925A/TR7.pdf
- Description:
- DIODE ZENER 10V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,513
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Product details
Overview
1PMT5925A/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, 450 Ω dynamic impedance, and 8.0 mA maximum Zener current - used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the 1PMT5925A/TR7 datasheet, 1PMT5925A/TR7 pinout, 1PMT5925A/TR7 application, or 1PMT5925A/TR7 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), reverse leakage (≤5 µA at 7.5 V), and compatibility with automated SMT assembly.
Technical Context
This device operates as a two-terminal voltage reference diode with cathode designated by TAB 1. Its Powermite® package features a full metallic bottom and integral heat sink locking tab, enabling efficient thermal conduction directly from the junction to the PCB pad via TAB 1.
Electrical behavior is defined at TL = 30°C with VZ measured 20 seconds after DC current application; dynamic impedance (ZZT) is derived using 60 Hz RMS AC current equal to 10% of IZT, and knee impedance (ZZK) is specified at IZK = 0.25 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.0 V ±5% at IZT = 4.5 mA - sets stable reference point for regulation within ±0.5 V tolerance band |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables high-power handling in compact SMT footprint without external heatsink |
| Dynamic Impedance (ZZT) | 450 Ω at IZT = 4.5 mA - determines output voltage stability under load current variation |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - defines temperature rise per watt, critical for thermal design on copper pads |
| ESD Rating | >16 kV per Human Body Model - ensures robustness during automated handling and board assembly |
| Reverse Leakage (IR) | ≤5 µA at VR = 7.5 V - minimizes standby current in low-power voltage clamp applications |
| Knee Current (IZK) | 0.25 mA - specifies minimum current needed to enter regulated breakdown region |
Pinout & Package
Package: Powermite® (DO-216AA), molded surface-mount package with full metallic bottom and integral heat sink locking tab; cathode identified 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 heat dissipation and circuit return path |
| Lead 2 | Anode | Standard anode terminal; connects to positive rail or regulated node depending on clamping configuration |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W power handling in DO-216AA outline |
| Full metallic bottom | Eliminates solder flux entrapment risk during reflow, improving long-term reliability and void-free solder joints |
| Integral heat sink locking tab | Provides mechanical anchoring and direct thermal path from junction to PCB, reducing thermal resistance to 30°C/W |
| ESD robustness | >16 kV HBM rating supports handling in standard electronics manufacturing environments without special ESD controls |
| Low reverse leakage | ≤5 µA at 75% of VZ ensures minimal quiescent current in battery-powered or energy-sensitive clamp circuits |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Signal Clamping |
|---|---|
Use Scenario: Used in optocoupler-based feedback loop of isolated DC-DC converters to regulate output voltage. IC Role / Device Role / Timing Role: Zener reference diode providing precise 10 V threshold for error amplifier input. Use Value: Tight 5% tolerance and low ZZT ensure stable regulation across line/load transients and temperature drift. | Use Scenario: Protects analog front-end inputs of PLC modules from transient overvoltage events. IC Role / Device Role / Timing Role: Bidirectional voltage clamp limiting signal swing to ±10 V range. Use Value: 3.0 W surge capability and 30°C/W thermal resistance allow sustained clamping without thermal runaway. |
| Automotive Body Control Module (BCM) Regulator | Medical Instrument Reference Divider |
Use Scenario: Supplies stable bias voltage to microcontroller reset supervisor IC in 12 V automotive systems. IC Role / Device Role / Timing Role: Primary voltage reference for brown-out detection circuitry. Use Value: >16 kV HBM ESD rating withstands harsh assembly and in-vehicle ESD events without degradation. | Use Scenario: Forms part of precision voltage divider network feeding ADC reference input in portable diagnostic equipment. IC Role / Device Role / Timing Role: Stable 10 V Zener source enabling accurate 2.5 V or 5 V sub-reference generation. Use Value: Low IR (≤5 µA) prevents loading error in high-impedance divider networks, preserving accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4740A | Same 10 V nominal rating but in DO-41 package; 1.0 W rating; no metallic bottom or locking tab; thermal resistance ~50°C/W | Lower power handling limits use in high-current regulation; unsuitable for automated SMT without lead forming | Select 1PMT5925A/TR7 when 3.0 W dissipation, SMT compatibility, or thermal performance is required |
| BZX84-C10 | SOT-23 package; 300 mW rating; 10 V ±5%; higher ZZT (~20 Ω typical); thermal resistance ~300°C/W | Only suitable for low-power signal-level clamping; cannot replace 1PMT5925A/TR7 in power regulation roles | Choose 1PMT5925A/TR7 where power density, thermal management, or industrial-grade robustness is critical |
Compared with 1N4740A and BZX84-C10, the 1PMT5925A/TR7 delivers 3× higher power rating in SMT form factor, 30°C/W thermal resistance versus >50°C/W, and integrated mechanical/thermal enhancements absent in legacy packages - making it uniquely suited for high-reliability, thermally constrained designs.
Availability
1PMT5925A/TR7 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, automotive body control modules, and medical instrument reference circuits requiring stable component supply and long-term manufacturability.
Supply support for 1PMT5925A/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 to deliver high-power SMT voltage regulation with enhanced thermal performance and assembly robustness - targeting applications where DO-41 or SOD-123 devices lack sufficient power density or thermal margin.
FAQ
What is the Zener voltage tolerance for 1PMT5925A/TR7?
The 1PMT5925A/TR7 has a standard Zener voltage tolerance of ±5% at 10.0 V nominal, meaning the actual VZ falls between 9.5 V and 10.5 V when measured at IZT = 4.5 mA and TAB 1 = 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D, but the /TR7 variant uses the standard ±5% specification.
How is thermal performance characterized for 1PMT5925A/TR7?
The 1PMT5925A/TR7 has a junction-to-TAB 1 thermal resistance of 30°C/W, measured under standard test conditions. This value assumes TAB 1 is soldered to a sufficiently large copper area; actual thermal performance depends on PCB layout, copper thickness, and airflow. The metallic bottom and locking tab are engineered to maximize this thermal path efficiency.
Can 1PMT5925A/TR7 be used in place of through-hole Zeners like 1N4740A?
While both 1PMT5925A/TR7 and 1N4740A are rated for 10 V Zener voltage, they are not drop-in replacements due to differing packages, power ratings (3.0 W vs. 1.0 W), and thermal characteristics. Substitution requires PCB redesign for SMT placement and thermal pad layout - the 1PMT5925A/TR7 is not a pin-compatible upgrade for through-hole sockets.
What does the "/TR7" suffix indicate for 1PMT5925A/TR7?
The "/TR7" suffix denotes tape-and-reel packaging per EIA-481 standard, with 3,000 units per 7-inch reel. This format is optimized for automated SMT placement equipment. It does not affect electrical specifications - all electrical parameters remain identical to the base 1PMT5925A part number.
Is 1PMT5925A/TR7 suitable for high-ESD environments?
Yes, the 1PMT5925A/TR7 is rated for >16 kV per Human Body Model (HBM), making it suitable for environments with frequent electrostatic discharge exposure, including automated assembly lines and field-deployed industrial equipment. This rating is verified per JEDEC JS-001 and applies to both terminals relative to the metallic TAB 1.
1PMT5925A/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
1PMT5925A/TR7 FAQ
1.How can I place an order for 1PMT5925A/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5925A/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 1PMT5925A/TR7 reliable?
The price and inventory of 1PMT5925A/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5925A/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5925A/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5925A/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5925A/TR7?
1PMT5925A/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5925A/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 1PMT5925A/TR7?
For technical support, including 1PMT5925A/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5925A/TR7 requirements.
6.How does Aetrix verify that 1PMT5925A/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5925A/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 1PMT5925A/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5925A/TR7?
All 1PMT5925A/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5925A/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 1PMT5925A/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5925A/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5925A/TR7 Tags
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Diodes Incorporated
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