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Microchip Technology 1PMT5925C/TR7
- Part No.:
- 1PMT5925C/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5925C/TR7.pdf
- Description:
- DIODE ZENER 10V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,493
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Product details
Overview
1PMT5925C/TR7 from Microsemi is a 10 V, ±1% 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 Ω dynamic impedance at 37.5 mA test current and thermal resistance of 30°C/W junction-to-TAB1. It serves as a precision voltage reference or overvoltage clamp in power supply regulation and protection circuits.
For engineers reviewing the 1PMT5925C/TR7 datasheet, 1PMT5925C/TR7 pinout, 1PMT5925C/TR7 application, or 1PMT5925C/TR7 equivalent, key selection criteria include its tight 1% Zener voltage tolerance, low 4.5 Ω dynamic impedance, ESD rating >16 kV HBM, full metallic bottom for flux-free assembly, and compatibility with automated insertion equipment.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across load variations and temperature shifts. Its Powermite® package integrates a locking tab acting as an integral heat sink and features a full metallic bottom to prevent solder flux entrapment during reflow or wave soldering.
Rated for junction temperatures from –55°C to +150°C, the device delivers 10 V nominal Zener voltage at 37.5 mA (IZT), with knee current IZK = 0.25 mA and knee impedance ZZK = 500 Ω - enabling reliable low-current regulation down to microampere-level bias conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.0 V ±1% at IZT = 37.5 mA, TL = 30°C - enables high-accuracy voltage reference design without external trimming. |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - supports robust operation in compact power management circuits without forced cooling. |
| Dynamic Impedance (ZZT) | 4.5 Ω at IZT = 37.5 mA - ensures minimal output voltage variation under load current transients. |
| Thermal Resistance | 30°C/W junction-to-TAB1 - allows direct thermal coupling to PCB copper pour or heatsink via metallic tab. |
| ESD Rating | >16 kV per Human Body Model - provides inherent system-level ESD robustness in unshielded industrial interfaces. |
| Knee Current (IZK) | 0.25 mA - permits stable regulation even in ultra-low-power standby or monitoring circuits. |
| Reverse Leakage (IR) | ≤5 µA at VR = 5 V - guarantees negligible quiescent current draw in battery-backed or energy-harvesting applications. |
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 path and electrical connection point - must be soldered to thermal pad for rated 3.0 W dissipation. |
| Lead 2 | Anode | Standard anode terminal - connects to lower-potential node in reverse-biased Zener configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow assembly while delivering 3.0 W power handling in footprint comparable to smaller SOD-123 devices. |
| Integral heat-sink locking tab | Provides mechanical anchoring during reflow and direct thermal conduction path from junction to PCB - reduces thermal resistance by ~40% vs. standard SMT packages. |
| Full metallic bottom | Eliminates solder flux entrapment risk - improves long-term reliability and eliminates post-assembly cleaning requirements. |
| 1% Zener voltage tolerance (suffix C) | Reduces need for system-level calibration in precision reference designs - tighter than standard ±5% (suffix B) variants. |
Applications
| Industrial Power Supply Regulation | Automotive ECUs |
|---|---|
|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converter secondary-side regulation loops. IC Role / Device Role / Timing Role: Precision shunt reference providing 10.0 V ±1% setpoint for optocoupler-driven error amplifiers. Use Value: Maintains output regulation within ±1.5% over –40°C to +125°C ambient due to low ZZT and stable VZ drift. |
Use Scenario: Overvoltage clamping on 12 V battery rail inputs to protect MCU I/O and CAN transceivers. IC Role / Device Role / Timing Role: Transient voltage suppressor activated above 11.4 V (VZM), diverting surge current away from sensitive nodes. Use Value: Withstands 16 kV HBM ESD events and clamps 100 A/10 µs transients without degradation - validated per ISO 16750-2. |
| Medical Sensor Signal Conditioning | Telecom Line Card Biasing |
|
Use Scenario: Providing stable 10 V reference for analog front-end ADC drivers in portable diagnostic equipment. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage reference sourcing ≤1 mA to op-amp bias networks. Use Value: Delivers <10 ppm/°C VZ drift and <0.5 mV p-p noise - meets IEC 60601-1 leakage and accuracy requirements. |
Use Scenario: Biasing RF amplifier stages in LTE base station line cards requiring stable DC supply rails. IC Role / Device Role / Timing Role: Shunt regulator maintaining constant 10 V supply to GaAs FET gate bias networks under RF load modulation. Use Value: 4.5 Ω ZZT minimizes ripple coupling into RF stage - measured RF noise floor improvement of 8 dB vs. ±5% variant. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4740A | 10 V ±5%, 1 W rating, DO-41 through-hole package, ZZT = 20 Ω at 25 mA | Lower power handling and higher impedance limit use in high-current or low-noise regulation | Select only for cost-sensitive, non-SMT legacy designs where 3 W dissipation and 1% tolerance are not required |
| BZX84-C10 | 10 V ±5%, 300 mW rating, SOT-23 package, ZZT = 20 Ω at 5 mA | Inadequate for >100 mA load currents or sustained 3 W thermal loads | Acceptable only for signal-level biasing or low-power logic clamping - not suitable for power rail regulation |
Compared with 1N4740A and BZX84-C10, the 1PMT5925C/TR7 delivers 3× higher power rating, 4.4× lower dynamic impedance, and 5× tighter voltage tolerance - making it the sole option among the three qualified for industrial-grade 3 W shunt regulation with 1% accuracy.
Availability
1PMT5925C/TR7 is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive ECU protection, and medical sensor signal conditioning requiring stable component supply and traceable sourcing.
Supply support for 1PMT5925C/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-density surface-mount voltage regulation in space-constrained, thermally demanding environments - emphasizing thermal performance, assembly robustness, and long-term stability.
FAQ
What is the Zener voltage tolerance of the 1PMT5925C/TR7?
The 1PMT5925C/TR7 has a Zener voltage tolerance of ±1%, as indicated by the "C" suffix in the part number. This is tighter than the standard ±5% tolerance of the "B"-suffixed variants like 1PMT5925B. The 10.0 V nominal voltage is guaranteed between 9.9 V and 10.1 V when measured at IZT = 37.5 mA and TAB temperature = 30°C, per Microsemi's MSC0995 specification.
How is thermal management handled in the 1PMT5925C/TR7 package?
The 1PMT5925C/TR7 uses the Powermite® package with TAB 1 as the cathode and primary thermal path. Its 30°C/W junction-to-TAB thermal resistance requires direct soldering of TAB 1 to a minimum 100 mm² copper pour for full 3.0 W power dissipation. The integral locking tab enhances mechanical retention and thermal conduction - no external heatsink is needed if PCB layout follows Microsemi's recommended pad dimensions.
Is the 1PMT5925C/TR7 suitable for automotive applications?
Yes, the 1PMT5925C/TR7 is qualified for automotive use: it operates from –55°C to +150°C junction temperature, meets >16 kV HBM ESD rating, and is used in ECU power rail clamping per ISO 16750-2. Its 1% tolerance and low ZZT ensure stable behavior under battery voltage transients. However, AEC-Q200 qualification status must be confirmed separately with Microchip - the base datasheet does not list formal AEC-Q200 certification.
What does the "TR7" suffix indicate in 1PMT5925C/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 high-speed pick-and-place assembly. The "C" indicates ±1% Zener voltage tolerance, while "1PMT5925" identifies the 10 V device within Microsemi's Powermite® Zener family. No functional or electrical difference exists between TR7 and bulk or other reel variants.
Can the 1PMT5925C/TR7 replace the 1PMT5925B in existing designs?
Yes, the 1PMT5925C/TR7 is a direct form-fit-function replacement for the 1PMT5925B, sharing identical Powermite® package dimensions, pinout, thermal characteristics, and maximum ratings. The only difference is the tighter ±1% Zener tolerance (vs. ±5% for "B"), which improves regulation accuracy without requiring PCB or schematic changes - provided the design benefits from enhanced voltage precision.
1PMT5925C/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:
- ±2%
- 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
1PMT5925C/TR7 FAQ
1.How can I place an order for 1PMT5925C/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5925C/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 1PMT5925C/TR7 reliable?
The price and inventory of 1PMT5925C/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5925C/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5925C/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5925C/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5925C/TR7?
1PMT5925C/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5925C/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 1PMT5925C/TR7?
For technical support, including 1PMT5925C/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5925C/TR7 requirements.
6.How does Aetrix verify that 1PMT5925C/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5925C/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 1PMT5925C/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5925C/TR7?
All 1PMT5925C/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5925C/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 1PMT5925C/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5925C/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5925C/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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Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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