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Microchip Technology 1N6026UR-1/TR
- Part No.:
- 1N6026UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6026UR-1/TR.pdf
- Description:
- DIODE ZENER 120V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,808
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Product details
Overview
1N6026UR-1/TR from Microsemi is a surface-mount 500 mW Zener diode with nominal Zener voltage of 120 V, ±5% tolerance (B-suffix), 1.0 mA test current, and dynamic impedance of 800 Ω at IZT; used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the 1N6026UR-1/TR datasheet, 1N6026UR-1/TR pinout, 1N6026UR-1/TR application, or 1N6026UR-1/TR equivalent, key selection factors include Zener voltage tolerance, thermal resistance (300 °C/W), junction temperature range (–65 to +175 °C), RoHS compliance status, and DO-213AA MELF package compatibility with automated SMT assembly.
Technical Context
This device operates in reverse breakdown to maintain stable voltage across a wide current range (IZK = 0.25 mA to IZM = 91 mA), with low leakage (<0.1 µA at VR = 99 V) and minimal capacitance (~4.2 pF typical). Its metallurgically bonded glass construction ensures high reliability and radiation hardness per MicroNote 050.
The DO-213AA (SOD80/MLL34) MELF package provides hermetic sealing and uniform thermal dissipation. Polarity is marked by a cathode band; regulation occurs with the banded end positive relative to the anode under reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 120 V ±5% at 1.0 mA - defines precise regulation point for feedback networks |
| Power Dissipation | 0.5 W at 25 °C ambient - limits continuous operating current without derating |
| Junction Temperature Range | –65 to +175 °C - supports operation in harsh industrial and aerospace environments |
| Dynamic Impedance ZZT | 800 Ω at 1.0 mA - determines output voltage stability under load transients |
| Reverse Leakage Current | <0.1 µA at 99 V - ensures minimal quiescent power loss in standby regulation |
| Thermal Resistance RθJA | 300 °C/W - dictates required PCB copper area for thermal management on FR4 |
| Forward Voltage VF | 1.1 V at 200 mA - relevant for polarity verification and ESD-safe handling checks |
Pinout & Package
DO-213AA (SOD80/MLL34) MELF glass package: hermetically sealed, cylindrical, axial-symmetric, cathode marked by single black band; terminals are metallized end caps suitable for reflow soldering per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener regulation terminal | Connected to higher potential node during reverse-bias operation; defines polarity for correct voltage reference orientation |
| Anode (unbanded end) | Reference/return terminal | Connected to circuit ground or lower-potential rail; completes Zener conduction path in regulation mode |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount DO-213AA package | Enables high-density automated assembly and eliminates axial lead trimming/handling |
| Metallurgical bonding | Ensures long-term bond integrity and resistance to thermal cycling fatigue in mission-critical systems |
| Radiation hardness | Inherently hardened per MicroNote 050 - suitable for space-qualified and nuclear instrumentation applications |
| ESD insensitivity | Non-sensitive per MIL-STD-750 method 1020 - reduces handling precautions and test screening overhead |
| RoHS-compliant option | e3 suffix available - meets EU environmental compliance without performance trade-offs in commercial grade |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Precision voltage reference element providing stable 120 V threshold for error amplifier comparison. Use Value: Maintains ±1% output regulation across line/load/temperature with low dynamic impedance (800 Ω) minimizing feedback loop gain variation. | Use Scenario: Clamps transient surges on DC bus lines in motor drives and industrial PLCs. IC Role / Device Role / Timing Role: Fast-acting shunt protector diverting excess energy when bus voltage exceeds 120 V. Use Value: Low leakage (<0.1 µA) prevents false triggering; high junction temperature rating (175 °C) sustains operation during sustained overloads. |
| Programmable Voltage Reference | High-Voltage Sensor Biasing |
Use Scenario: Sets reference point for high-side current sensing amplifiers in battery management systems. IC Role / Device Role / Timing Role: Stable 120 V Zener source enabling accurate scaling of sensed voltages above 100 V. Use Value: Tight 5% tolerance and low tempco (+0.110 %/°C) ensure consistent offset calibration across –40 to +125 °C ambient. | Use Scenario: Provides bias voltage for avalanche photodiode (APD) arrays in optical sensing modules. IC Role / Device Role / Timing Role: High-stability DC bias generator delivering regulated 120 V with minimal noise coupling. Use Value: Minimal capacitance (4.2 pF) preserves signal bandwidth; hermetic glass package prevents humidity-induced drift in field-deployed sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6026B-1 | Same electrical specs but DO-35 (axial-leaded) package; no TR tape-and-reel option | Requires manual insertion or through-hole reflow; unsuitable for high-volume SMT lines | Select when legacy board design mandates axial leads or hand-soldering is preferred |
| BZX85C120 | 1.3 W power rating; TO-204AA (DO-41); 120 V ±5%; higher IZM (108 mA) | Higher power handling enables use in non-derated linear regulators; larger footprint | Select when >0.5 W dissipation is required or existing DO-41 footprint must be retained |
Compared with 1N6026UR-1/TR, the 1N6026B-1 offers identical regulation performance but lacks SMT compatibility, while BZX85C120 trades miniaturization for higher power capacity-making the 1N6026UR-1/TR optimal for space-constrained, high-reliability SMT designs requiring exact 120 V reference stability.
Availability
1N6026UR-1/TR is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, and programmable voltage references requiring stable component supply, consistent Zener voltage tolerance, and RoHS-compliant manufacturing.
Supply support for 1N6026UR-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 1N6026UR-1/TR belongs to Microsemi's legacy 1N5985BUR–1N6031BUR series of precision Zener diodes, engineered for stable voltage regulation in mission-critical power and protection circuits where radiation hardness and thermal robustness are essential.
FAQ
What is the Zener voltage tolerance of the 1N6026UR-1/TR?
The 1N6026UR-1/TR has a nominal Zener voltage of 120 V with ±5% tolerance (B-suffix), meaning its actual regulation voltage falls between 114 V and 126 V when tested at 1.0 mA. This tolerance is verified per JEDEC standards and applies across the full operating temperature range of –65 to +175 °C. The 1N6026UR-1/TR maintains this specification under standard SMT mounting conditions on FR4 PCBs.
Is the 1N6026UR-1/TR RoHS compliant?
Yes, the 1N6026UR-1/TR is RoHS compliant (e3 designation), with matte-tin plating on its DO-213AA end caps. RoHS compliance applies only to commercial-grade versions; military-screened variants (e.g., JAN, JANTX) are not RoHS compliant. The 1N6026UR-1/TR meets EU Directive 2011/65/EU requirements and is suitable for environmentally regulated commercial electronics production.
What is the maximum Zener current (IZM) for the 1N6026UR-1/TR?
The maximum Zener current IZM for the 1N6026UR-1/TR is 91 mA at 25 °C ambient, calculated based on its 0.5 W power rating and upper-tolerance Zener voltage (126 V). This value assumes proper thermal management per the specified RθJA = 300 °C/W. Derating is required above 25 °C ambient, following the curve in Figure 1 of the T4-LDS-0228-1 datasheet. The 1N6026UR-1/TR must not exceed this current to avoid permanent degradation.
Does the 1N6026UR-1/TR have radiation-hardened characteristics?
Yes, the 1N6026UR-1/TR exhibits inherent radiation hardness as documented in Microsemi MicroNote 050, due to its hermetically sealed glass DO-213AA construction and metallurgical bonding. It is qualified for total ionizing dose (TID) levels suitable for space and nuclear instrumentation applications. While not formally screened to MIL-PRF-19500 for radiation unless ordered with MQ/MX/MV/CDS prefixes, the base 1N6026UR-1/TR retains this intrinsic property. Radiation performance data for the 1N6026UR-1/TR is available in MicroNote 050.
What does the "TR" suffix indicate in 1N6026UR-1/TR?
The "TR" suffix in 1N6026UR-1/TR denotes tape-and-reel packaging per EIA-481-B standard, using 12 mm carrier tape. This format enables automated pick-and-place assembly in high-volume SMT production. The 1N6026UR-1/TR is supplied in reels containing standard quantities (typically 3,000 or 5,000 units depending on order configuration), with moisture sensitivity level (MSL) appropriate for standard reflow profiles. The TR option is exclusive to commercial-grade devices.
1N6026UR-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):
- 120 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
1N6026UR-1/TR FAQ
1.How can I place an order for 1N6026UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6026UR-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 1N6026UR-1/TR reliable?
The price and inventory of 1N6026UR-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 1N6026UR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N6026UR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6026UR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6026UR-1/TR?
1N6026UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6026UR-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 1N6026UR-1/TR?
For technical support, including 1N6026UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6026UR-1/TR requirements.
6.How does Aetrix verify that 1N6026UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N6026UR-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 1N6026UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N6026UR-1/TR?
All 1N6026UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6026UR-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 1N6026UR-1/TR part is unused and in its original packaging.
Return procedure for 1N6026UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6026UR-1/TR Tags
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