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Microchip Technology 1N6025UR-1/TR
- Part No.:
- 1N6025UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6025UR-1/TR.pdf
- Description:
- DIODE ZENER 110V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,546
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Product details
Overview
1N6025UR-1/TR from Microsemi is a surface-mount 500 mW Zener diode with nominal Zener voltage of 110 V, ±5% tolerance (B-suffix), 1 mA test current, and dynamic impedance of 650 Ω at IZT; used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the 1N6025UR-1/TR datasheet, 1N6025UR-1/TR pinout, 1N6025UR-1/TR application, or 1N6025UR-1/TR equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (300 °C/W), low leakage (<0.1 µA at 84 V), DO-213AA MELF package compatibility, and RoHS-compliant matte-tin plating.
Technical Context
This device operates in reverse breakdown to maintain stable reference voltage across wide current (1 mA to 84 mA) and temperature (-65 to +175 °C) ranges. Its 110 V nominal Zener voltage is specified at 1 mA test current, with dynamic impedance measured at 1 kHz AC superimposed on DC bias.
The DO-213AA glass MELF package provides hermetic sealing, metallurgical bonding, and minimal capacitance-critical for noise-sensitive regulation and high-reliability applications where ESD immunity (MIL-STD-750, method 1020) and radiation hardness are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 110 V ±5% at 1 mA - defines precise regulation point for high-voltage reference design |
| Power Dissipation | 0.5 W at 25 °C ambient - sets maximum continuous power handling on FR4 board |
| Dynamic Impedance ZZT | 650 Ω at 1 mA - determines output voltage stability under varying load current |
| Reverse Leakage IR | <0.1 µA at 84 V - ensures minimal error current in high-impedance feedback networks |
| Thermal Resistance RθJA | 300 °C/W - defines junction-to-ambient temperature rise per watt dissipated |
| Operating Temperature | -65 to +175 °C - supports extended-range industrial and aerospace environments |
| Forward Voltage VF | 1.1 V at 200 mA - relevant for polarity verification and forward-bias circuit checks |
Pinout & Package
DO-213AA (SOD-80 / MLL34) glass MELF package: hermetically sealed cylindrical body with tin-lead or RoHS-compliant matte-tin end-cap plating; cathode indicated by single band; polarity: banded end is cathode (positive during Zener operation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to system ground or lower-potential rail in shunt regulator configuration |
| Cathode (banded end) | Zener regulation node | Connected to input voltage source and feedback network; maintains 110 V reference relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount DO-213AA MELF package | Enables automated placement and reflow soldering while maintaining hermetic reliability and low parasitic capacitance |
| ±5% Zener voltage tolerance (B-suffix) | Provides tighter regulation accuracy than 10% variants, suitable for mid-precision feedback applications |
| Low reverse leakage (<0.1 µA @ 84 V) | Minimizes error current in high-resistance voltage divider networks used in isolated feedback paths |
| RoHS-compliant matte-tin plating | Ensures lead-free assembly compatibility without compromising solderability or long-term intermetallic stability |
| Inherent radiation hardness | Validated per Microsemi MicroNote 050 - supports use in space-qualified and high-radiation terrestrial systems |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Protection Circuit |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converters using optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable 110 V threshold for TL431 or similar error amplifier biasing. Use Value: Enables accurate output regulation despite transformer winding ratio tolerances and line/load variations. | Use Scenario: Clamps transient overvoltage on 100 V DC bus in motor drive inverters. IC Role / Device Role / Timing Role: Passive crowbar element absorbing surge energy above 110 V to protect downstream MOSFETs and gate drivers. Use Value: Prevents destructive voltage spikes without active control circuitry or response delay. |
| High-Voltage Reference Source | Industrial Sensor Excitation |
Use Scenario: Supplies stable excitation voltage for piezoresistive pressure transducers requiring >100 V bias. IC Role / Device Role / Timing Role: Precision shunt reference generating fixed 110 V rail from unregulated HV supply. Use Value: Maintains sensor linearity and repeatability across temperature extremes (-65 to +175 °C). | Use Scenario: Provides regulated bias for strain-gauge Wheatstone bridges in load-cell instrumentation. IC Role / Device Role / Timing Role: Low-noise, low-drift Zener reference establishing bridge excitation voltage. Use Value: Reduces measurement drift caused by supply variation and improves signal-to-noise ratio. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX85C110 | 500 mW, 110 V ±5%, DO-41 axial package - higher RθJA (500 °C/W), no MELF form factor | Requires through-hole PCB layout; unsuitable for high-density SMT designs | Select when legacy through-hole assembly or lower-cost procurement is prioritized over board space and thermal performance |
| SMBZ110A | 1 W, 110 V ±5%, SMB package - higher power rating but larger footprint and 10× higher capacitance (~50 pF vs. ~5 pF) | Not suitable for high-frequency or low-capacitance applications like RF biasing or fast transient clamping | Select when higher power derating margin is needed and capacitance sensitivity is not critical |
Compared with BZX85C110 and SMBZ110A, the 1N6025UR-1/TR delivers superior thermal performance (300 °C/W), ultra-low capacitance, and compact DO-213AA MELF packaging-making it optimal for space-constrained, high-reliability SMT applications demanding stable 110 V regulation.
Availability
1N6025UR-1/TR is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, and high-voltage reference sources requiring stable component supply, consistent parametric performance, and long-term obsolescence management.
Supply support for 1N6025UR-1/TR 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 Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal components for aerospace, defense, and industrial markets.
The 1N6025UR-1/TR belongs to Microsemi's legacy 1N5985BUR–1N6031BUR Zener series, engineered for precision voltage regulation in harsh-environment applications where hermetic sealing, radiation tolerance, and MIL-PRF-19500 screening capability are essential.
FAQ
What is the Zener voltage tolerance of the 1N6025UR-1/TR?
The 1N6025UR-1/TR has a nominal Zener voltage of 110 V with ±5% tolerance, denoted by the "B" suffix in its part nomenclature. This means the actual measured VZ falls between 104.5 V and 115.5 V at 1 mA test current, ensuring predictable regulation performance in feedback and protection circuits.
Is the 1N6025UR-1/TR RoHS compliant?
Yes, the 1N6025UR-1/TR is RoHS compliant, indicated by the "e3" designation in its full part number (1N6025BUR-1/TR e3). It features matte-tin end-cap plating and meets EU Directive 2011/65/EU requirements for commercial-grade versions only.
What package type does the 1N6025UR-1/TR use?
The 1N6025UR-1/TR uses the DO-213AA (also known as SOD-80 or MLL34) glass MELF package - a hermetically sealed, cylindrical surface-mount format with metallurgically bonded end caps and cathode band marking for polarity identification.
What is the maximum Zener current IZM for the 1N6025UR-1/TR?
The maximum dc Zener current IZM for the 1N6025UR-1/TR is 84 mA, calculated from its 0.5 W power rating and upper-tolerance Zener voltage (115.5 V). This defines the absolute upper limit of continuous reverse current before thermal runaway risk increases.
How does the 1N6025UR-1/TR perform under high-temperature conditions?
The 1N6025UR-1/TR operates reliably from -65 to +175 °C junction temperature. Its positive temperature coefficient (+0.110 %/°C) ensures stable voltage drift behavior at elevated temperatures, and its 300 °C/W thermal resistance allows safe operation up to 125 °C ambient when mounted per recommended FR4 footprint.
1N6025UR-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 110 V
- Tolerance:
- -
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N6025UR-1/TR FAQ
1.How can I place an order for 1N6025UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6025UR-1/TR 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 1N6025UR-1/TR reliable?
The price and inventory of 1N6025UR-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6025UR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N6025UR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6025UR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6025UR-1/TR?
1N6025UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6025UR-1/TR 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 1N6025UR-1/TR?
For technical support, including 1N6025UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6025UR-1/TR requirements.
6.How does Aetrix verify that 1N6025UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N6025UR-1/TR 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 1N6025UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N6025UR-1/TR?
All 1N6025UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6025UR-1/TR, 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 1N6025UR-1/TR part is unused and in its original packaging.
Return procedure for 1N6025UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6025UR-1/TR Tags
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MM5Z5V1ST1G
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