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Microchip Technology 1N6026UR/TR
- Part No.:
- 1N6026UR/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6026UR/TR.pdf
- Description:
- DIODE ZENER 120V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,930
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Product details
Overview
1N6026UR/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 reference and overvoltage protection circuits.
For engineers reviewing the 1N6026UR/TR datasheet, 1N6026UR/TR pinout, 1N6026UR/TR application, or 1N6026UR/TR equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (300 °C/W), low leakage (<0.1 µA at 91 V), RoHS-compliant matte-tin plating, and DO-213AA MELF package suitability for high-reliability industrial and aerospace designs.
Technical Context
This device operates in reverse breakdown to maintain stable output voltage across wide current (1.0 mA to 91 mA) and temperature (-65 °C to +175 °C) ranges. Its metallurgically bonded glass construction ensures hermetic sealing and radiation hardness per MicroNote 050.
Designed for surface-mount assembly on FR4 PCBs with 1 oz copper, it exhibits 150 °C/W junction-to-end-cap thermal resistance and requires no polarity-specific layout-cathode band indicates banded end as positive terminal during Zener operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 120 V ±5% at 1.0 mA - defines precise regulation point for feedback loops and clamp thresholds |
| Power Dissipation | 0.5 W at 25 °C ambient - sets maximum continuous power handling on standard FR4 board |
| Zener Impedance ZZT | 800 Ω at 1.0 mA - determines regulation stability under varying load current |
| Reverse Leakage IR | <0.1 µA at 91 V - ensures minimal standby current in high-impedance bias networks |
| Junction Temp Range | -65 °C to +175 °C - supports operation in extended-temperature industrial and avionics environments |
| Thermal Resistance RθJA | 300 °C/W - informs derating requirements above 25 °C ambient (see Figure 1) |
| Package | DO-213AA (MLL34/SOD80) MELF - enables automated placement and high reliability in vibration-prone systems |
Pinout & Package
DO-213AA (SOD80/MLL34) MELF glass package with two end-cap terminals; cathode identified by single black band - banded end is positive during Zener regulation. No internal leads; terminals are metallized end caps solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference node for Zener conduction | Connected to lower-potential rail; forms regulated voltage drop when cathode is biased higher |
| Cathode (banded end) | Zener regulation terminal | Must be held at higher potential than anode to enter breakdown; serves as regulated output node |
Key Features
| Feature | Design Value |
|---|---|
| Hermetically sealed glass construction | Enables long-term parameter stability and immunity to humidity-induced drift in harsh environments |
| MIL-PRF-19500 screening option | Supports qualification for military/aerospace applications requiring traceable reliability testing |
| RoHS-compliant matte-tin plating | Permits lead-free reflow assembly without compromising solderability or intermetallic formation |
| Low capacitance (typ. 3.3 pF) | Minimizes signal coupling in high-frequency sensing and RF-adjacent regulation circuits |
| Radiation-hardened design | Validated per MicroNote 050 for total ionizing dose tolerance - suitable for space-qualified systems |
Applications
| Industrial Power Supply Reference | Aerospace Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converter secondary-side error amplifiers. IC Role / Device Role / Timing Role: Precision voltage reference element providing stable 120 V reference for optocoupler-driven regulation loop. Use Value: ±5% VZ tolerance and 800 Ω ZZT ensure <±1.5% output voltage variation across line/load/temperature. | Use Scenario: Protecting avionics bus monitoring circuitry from transient overvoltages exceeding 120 V. IC Role / Device Role / Timing Role: Fast-acting shunt clamp activated during >120 V surges to divert excess energy to ground. Use Value: Low 0.1 µA leakage at 91 V prevents false triggering while enabling rapid response to fast-rising transients. |
| Test Equipment Voltage Standard | High-Voltage Sensor Bias Network |
Use Scenario: Calibrating benchtop multimeters and programmable power supplies requiring traceable 120 V reference. IC Role / Device Role / Timing Role: Primary voltage standard in metrology-grade divider networks with temperature-compensated layout. Use Value: -65 °C to +175 °C operating range and radiation hardness support calibration integrity in environmental test chambers. | Use Scenario: Biasing photodiode or avalanche photodetector arrays requiring stable 120 V reverse bias. IC Role / Device Role / Timing Role: Regulated high-voltage source maintaining constant field strength across sensor junctions. Use Value: 300 °C/W RθJA allows thermal management via copper pour, minimizing bias drift during extended measurement cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX85C120 | 500 mW, 120 V ±5%, DO-41 package (axial), RθJA = 500 °C/W | Larger footprint; less suitable for high-density SMT layouts or vibration-prone systems | Select when axial through-hole mounting is required or legacy DO-41 footprint compatibility is mandatory |
| MMBZ5265B | 350 mW, 120 V ±5%, SOT-23 package, IZT = 10 mA, ZZT = 150 Ω | Lower power rating and smaller package; higher test current shifts regulation point sensitivity | Select for space-constrained consumer electronics where 0.35 W dissipation suffices and tighter ZZT is prioritized |
Compared with BZX85C120 and MMBZ5265B, the 1N6026UR/TR offers superior thermal performance (300 °C/W vs. 500 °C/W), hermetic glass reliability, and radiation hardness - making it preferred for mission-critical industrial and aerospace voltage references where long-term stability outweighs cost or size constraints.
Availability
1N6026UR/TR is available at Aetrix Electronics and suitable for industrial power supplies, aerospace overvoltage protection, and test equipment voltage standards requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1N6026UR/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/TR belongs to Microsemi's legacy 1N5985BUR–1N6031BUR series of surface-mount Zener regulators, designed specifically for applications demanding hermetic sealing, radiation tolerance, and MIL-PRF-19500 qualified variants.
FAQ
What is the Zener voltage tolerance for 1N6026UR/TR?
The 1N6026UR/TR has a nominal Zener voltage of 120 V with ±5% tolerance, indicated by the "B" suffix in its part number per Microsemi's nomenclature. This means the actual measured VZ at 1.0 mA test current falls between 114 V and 126 V across all units, ensuring predictable regulation in feedback and clamp circuits.
Is 1N6026UR/TR RoHS compliant?
Yes, the 1N6026UR/TR is RoHS compliant, as confirmed by the "e3" designation in Microsemi's part numbering system and documentation. It features matte-tin plating on end caps and meets EU Directive 2011/65/EU requirements - suitable for lead-free reflow soldering processes in commercial-grade applications.
What package type does 1N6026UR/TR use?
The 1N6026UR/TR uses the DO-213AA (also known as SOD80 or MLL34) MELF glass package - a cylindrical, surface-mount format with metallized end caps. Its dimensions are 1.60–1.70 mm diameter and 3.30–3.70 mm length, optimized for automated pick-and-place and high-reliability hermetic sealing.
What is the maximum reverse leakage current for 1N6026UR/TR?
The maximum reverse leakage current for 1N6026UR/TR is 0.1 µA at 91 V, as specified in the Electrical Characteristics table on page 3 of T4-LDS-0228-1. This ultra-low leakage ensures minimal loading in high-impedance reference networks and prevents false triggering in overvoltage detection circuits.
Can 1N6026UR/TR be used in aerospace applications?
Yes, the 1N6026UR/TR supports aerospace use via optional MIL-PRF-19500 screening levels (e.g., JAN, JANTX, JANTXV prefixes). Its hermetic glass construction, radiation hardness per MicroNote 050, and -65 °C to +175 °C operating range make it suitable for flight-critical voltage regulation and protection functions when properly screened.
1N6026UR/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/TR FAQ
1.How can I place an order for 1N6026UR/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6026UR/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/TR reliable?
The price and inventory of 1N6026UR/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/TR is usually 5 days.
3.What payment methods are accepted for 1N6026UR/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6026UR/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6026UR/TR?
1N6026UR/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6026UR/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/TR?
For technical support, including 1N6026UR/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6026UR/TR requirements.
6.How does Aetrix verify that 1N6026UR/TR is sourced from the original manufacturer or authorized distributors?
All 1N6026UR/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/TR meets industry standards.
7.What is the process for return or replacement of 1N6026UR/TR?
All 1N6026UR/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6026UR/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/TR part is unused and in its original packaging.
Return procedure for 1N6026UR/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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