Microchip Technology 1N6027UR/TR
- Part No.:
- 1N6027UR/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6027UR/TR.pdf
- Description:
- DIODE ZENER 130V 500MW DO213AA
- Quantity:
- Payment:

- Shipping:

Inventory:9,796
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Product details
Overview
1N6027UR/TR from Microsemi is a surface-mount 130 V, 5% tolerance Zener diode in DO-213AA (MLL34/SOD80) MELF glass package, rated for 500 mW power dissipation at 25°C, with 950 Ω dynamic impedance at 1 mA test current and ±0.110 %/°C temperature coefficient - used for precision voltage regulation in industrial power supplies and voltage reference circuits.
For engineers reviewing the 1N6027UR/TR datasheet, 1N6027UR/TR pinout, 1N6027UR/TR application, or 1N6027UR/TR equivalent, key selection criteria include Zener voltage tolerance (±5%), low leakage (<0.1 µA at 104 V), thermal resistance (300 °C/W junction-to-ambient), RoHS compliance (e3 suffix), and tape-and-reel packaging (TR suffix).
Technical Context
This device operates as a two-terminal voltage regulator in reverse-biased breakdown mode, with Zener voltage specified at 1 mA test current (IZT = 1 mA) and characterized over -65°C to +175°C junction temperature range. Its DO-213AA hermetically sealed glass construction ensures stable long-term voltage regulation under thermal cycling and high-reliability environments.
It exhibits minimal capacitance (typical <1.5 pF at 0 V), non-sensitive ESD behavior per MIL-STD-750 Method 1020, and inherent radiation hardness documented in MicroNote 050 - making it suitable for aerospace and defense applications where parameter stability under stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 130 V ±5% at IZT = 1 mA - defines precise regulation point for feedback loops and reference generation. |
| Power Dissipation (PD) | 0.5 W at TA ≤ 25°C - sets maximum continuous power handling on FR4 board with 1 oz Cu. |
| Dynamic Impedance (ZZT) | 950 Ω at IZT = 1 mA - indicates regulation stiffness; lower values improve load regulation performance. |
| Reverse Leakage (IR) | <0.1 µA at VR = 104 V - ensures minimal quiescent current in high-impedance bias networks. |
| Temp. Coefficient (αVZ) | +0.110 %/°C - quantifies voltage drift with temperature; enables accurate thermal compensation design. |
| Junction Temp. Range | -65°C to +175°C - supports operation in extended industrial and military environments without derating. |
| Forward Voltage (VF) | 1.1 V at IF = 200 mA - relevant for polarity verification and ESD protection circuit integration. |
Pinout & Package
DO-213AA (SOD80 / MLL34) MELF glass package: hermetically sealed, cylindrical, metallurgically bonded end caps, cathode band marking, RoHS-compliant matte-tin plating (e3), weight 0.04 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Regulated output node | Connected to higher potential during Zener operation; defines polarity for correct biasing in shunt regulator topologies. |
| Anode (unbanded end) | Reference/return node | Connected to system ground or lower-potential rail; completes current path through series resistor in basic regulator configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount MELF package | DO-213AA enables automated placement and high thermal reliability vs. axial DO-35 in space-constrained PCBs. |
| Hermetic glass seal | Prevents moisture ingress and parameter drift over time - critical for long-life industrial and aerospace deployments. |
| Metallurgical bonding | Ensures robust interfacial integrity between silicon die and end caps, improving thermal cycling endurance. |
| Low capacitance | Typical <1.5 pF at 0 V - preserves high-frequency signal integrity in RF bias and timing circuits. |
| Radiation-hardened structure | Documented hardness per MicroNote 050 - validated for total ionizing dose (TID) resilience in space-grade systems. |
Applications
| Industrial Power Supply Regulation | Aerospace Reference Voltage Generation |
|---|---|
Use Scenario: Shunt regulation of auxiliary 130 V rail in programmable logic controller (PLC) power modules. IC Role / Device Role / Timing Role: Zener diode provides stable voltage reference for error amplifier feedback in isolated DC-DC converter. Use Value: ±5% tolerance and +0.110 %/°C TC enable <±1.5% total regulation error across -40°C to +85°C operating range. | Use Scenario: Precision reference node in satellite telemetry voltage monitoring circuit. IC Role / Device Role / Timing Role: Stable 130 V Zener establishes calibration baseline for ADC input scaling in radiation-hardened data acquisition unit. Use Value: Hermetic DO-213AA package and radiation hardness ensure parameter stability after 100 krad(Si) TID exposure. |
| Military Grade Voltage Clamp | High-Voltage Test Equipment Protection |
Use Scenario: Overvoltage clamp on 120 V AC-derived DC bus in ruggedized field communications transceiver. IC Role / Device Role / Timing Role: Fast-acting shunt protector that clamps transient spikes above 136.5 V (130 V × 1.05) to safeguard downstream FET drivers. Use Value: Low 0.1 µA leakage at 104 V minimizes standby power loss while maintaining fast response to >1 kV/µs transients. | Use Scenario: Input protection element in high-voltage oscilloscope probe calibration circuit. IC Role / Device Role / Timing Role: Provides repeatable 130 V breakdown threshold for traceable voltage step verification against NIST standards. Use Value: Tight 5% tolerance and minimal capacitance (<1.5 pF) preserve signal fidelity and measurement repeatability at 1 MHz test frequencies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6027B-1 (DO-35) | Axial-leaded DO-35 package; identical electrical specs but higher RθJA (350 °C/W vs. 300 °C/W); no TR tape option. | Requires manual or wave-solder assembly; unsuitable for high-density SMT lines. | Select when legacy through-hole compatibility or hand-solder prototyping is required. |
| BZX85C130 (Nexperia) | 130 V, 5%, 1.3 W rating; TO-209AB (DO-41) package; higher power but larger footprint and different thermal profile. | Supports higher continuous current (10 mA vs. 1 mA IZT), but lacks radiation hardness documentation and MIL-PRF-19500 screening options. | Select when higher power margin is needed and radiation tolerance is not required. |
Compared with 1N6027UR/TR, the 1N6027B-1 offers identical regulation performance in axial form for legacy designs, while BZX85C130 delivers higher power capability in a larger through-hole package - neither matches the combination of SMT MELF reliability, radiation hardness, and MIL-qualified screening available in the 1N6027UR/TR.
Availability
1N6027UR/TR is available at Aetrix Electronics and suitable for industrial power supply regulation, aerospace reference voltage generation, and military-grade voltage clamping requiring stable component supply, consistent parametric performance, and long-term obsolescence management.
Supply support for 1N6027UR/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 ICs, discrete devices, and RF solutions for aerospace, defense, and industrial markets.
The 1N6027UR/TR belongs to Microsemi's legacy MIL-PRF-19500 qualified Zener diode family, designed specifically for high-stability voltage regulation in mission-critical systems where parameter drift, radiation effects, and thermal cycling must be rigorously controlled.
FAQ
What is the Zener voltage tolerance of the 1N6027UR/TR?
The 1N6027UR/TR has a nominal Zener voltage of 130 V with a ±5% tolerance, meaning its actual breakdown voltage falls between 123.5 V and 136.5 V when tested at IZT = 1 mA and TL = 30°C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of Microsemi's T4-LDS-0228-1 datasheet.
Is the 1N6027UR/TR RoHS compliant?
Yes, the 1N6027UR/TR is RoHS compliant, indicated by the "e3" suffix in its full part number per Microsemi's nomenclature guide. The matte-tin plating on its DO-213AA end caps meets J-STD-609 Category 3 requirements, and RoHS compliance applies to commercial-grade units only.
What does the "TR" suffix mean in 1N6027UR/TR?
The "TR" suffix denotes tape-and-reel packaging per EIA-481-B standard using 12 mm carrier tape, enabling automated SMT placement. This packaging format is standard for volume production and is explicitly referenced in the Mechanical and Packaging section of the T4-LDS-0228-1 datasheet.
Can the 1N6027UR/TR be used in radiation-intensive environments?
Yes, the 1N6027UR/TR is inherently radiation-hardened as documented in Microsemi MicroNote 050. Its hermetic DO-213AA glass package and silicon structure provide proven resilience to total ionizing dose (TID), making it suitable for satellite, avionics, and nuclear instrumentation applications.
What is the maximum reverse leakage current for the 1N6027UR/TR?
The maximum reverse leakage current (IR) for the 1N6027UR/TR is 0.1 µA at VR = 104 V (80% of nominal VZ), as specified in the Electrical Characteristics table. This low leakage supports high-impedance bias networks and minimizes standby power loss in precision reference circuits.
1N6027UR/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):
- 130 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
1N6027UR/TR FAQ
1.How can I place an order for 1N6027UR/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6027UR/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 1N6027UR/TR reliable?
The price and inventory of 1N6027UR/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6027UR/TR is usually 5 days.
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1N6027UR/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6027UR/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 1N6027UR/TR?
For technical support, including 1N6027UR/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6027UR/TR requirements.
6.How does Aetrix verify that 1N6027UR/TR is sourced from the original manufacturer or authorized distributors?
All 1N6027UR/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 1N6027UR/TR meets industry standards.
7.What is the process for return or replacement of 1N6027UR/TR?
All 1N6027UR/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6027UR/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 1N6027UR/TR part is unused and in its original packaging.
Return procedure for 1N6027UR/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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