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Microchip Technology 1N6027UR-1/TR
- Part No.:
- 1N6027UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6027UR-1/TR.pdf
- Description:
- DIODE ZENER 130V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,833
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Product details
Overview
1N6027UR-1/TR from Microsemi is a surface-mount 500 mW Zener diode with nominal Zener voltage of 130 V, ±5% tolerance (B suffix), 1.0 mA test current, and dynamic impedance of 1400 Ω at IZT; used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the 1N6027UR-1/TR datasheet, 1N6027UR-1/TR pinout, 1N6027UR-1/TR application, or 1N6027UR-1/TR equivalent, key selection criteria include Zener voltage accuracy, 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 mode with cathode band indicating the positive terminal during regulation. It exhibits a temperature coefficient of +0.110 %/°C and maintains stable regulation across 1.0 mA test current and up to 99 mA maximum Zener current (IZM).
Designed for high-reliability commercial applications, it features hermetically sealed glass construction, metallurgical bonding, and minimal capacitance - confirmed by typical 3.8 pF at 130 V per Figure 2. Its DO-213AA (SOD80/MLL34) MELF package supports thermal dissipation via end-cap mounting on FR4 PCBs with 1 oz copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 130 V ±5% at 1.0 mA - defines precise regulation threshold for high-voltage reference and clamp circuits. |
| Power Dissipation (PD) | 0.5 W at 25 °C - limits continuous power handling; derates linearly above 25 °C per Figure 1. |
| Junction Temperature Range | –65 to +175 °C - enables operation in extended industrial and aerospace environments without thermal shutdown. |
| Dynamic Impedance (ZZT) | 1400 Ω at 1.0 mA - determines regulation stiffness; lower values improve load regulation under varying current. |
| Reverse Leakage Current | ≤0.1 µA at 104 V - ensures negligible standby current in high-impedance bias networks. |
| Thermal Resistance (RθJA) | 300 °C/W - defines temperature rise per watt on standard FR4; critical for thermal design margining. |
| Forward Voltage (VF) | 1.1 V at 200 mA - relevant for forward-biased protection or polarity-check use cases. |
Pinout & Package
DO-213AA (SOD80 / MELF) glass package with two end-cap terminals; cathode identified by single black band. No internal leads - electrical connection made exclusively through metallized end caps.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Regulated output node | Connected to higher-potential rail; Zener conduction occurs when cathode voltage exceeds anode by ≥130 V. |
| Anode (unbanded end) | Reference/return node | Typically tied to ground or low-side return path; establishes reference potential for regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF construction | Enables long-term stability and moisture resistance without conformal coating in harsh environments. |
| RoHS-compliant matte-tin plating | Supports lead-free reflow soldering (260 °C, 10 s) while maintaining solderability per MIL-STD-750 Method 2026. |
| Radiation-hardened design | Inherently tolerant to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for space-qualified systems. |
| ESD insensitivity | Withstands >4 kV HBM per MIL-STD-750 Method 1020 - eliminates need for external ESD protection in board-level design. |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp for Telecom Line Cards |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converters using optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Precision voltage reference providing 130 V threshold for TL431-compatible shunt regulator circuitry. Use Value: Maintains ±1% output regulation over –40 to +85 °C due to tight 5% VZ tolerance and low tempco (+0.110 %/°C). | Use Scenario: Protects line interface ICs from lightning-induced surges on POTS or xDSL lines. IC Role / Device Role / Timing Role: High-voltage transient clamp absorbing energy above 130 V while limiting peak voltage to safe levels. Use Value: Withstands repetitive 100 V transients with <0.1 µA leakage, preserving signal integrity in always-on analog front ends. |
| Industrial Sensor Excitation Reference | High-Voltage Bias Supply for Photomultipliers |
Use Scenario: Provides stable excitation voltage for piezoresistive pressure sensors requiring 120–140 V bias. IC Role / Device Role / Timing Role: Fixed-voltage reference source replacing adjustable regulators where trimming is impractical. Use Value: Delivers 130 V ±6.5 V over full temperature range with <1400 Ω dynamic impedance - minimizing sensor output drift. | Use Scenario: Supplies regulated negative bias to photomultiplier tube dynodes in radiation detection equipment. IC Role / Device Role / Timing Role: High-stability Zener element in cascaded resistive divider network for multi-stage dynode biasing. Use Value: Ensures <±0.5% bias variation across 10,000-hour lifetime due to hermetic glass packaging and metallurgical bond reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6027UR-1 | Same electrical specs but in cut-tape (non-reel) packaging; no TR suffix. | Not optimized for high-speed pick-and-place; requires manual loading or tape conversion. | Select when prototyping or low-volume production avoids reel-handling infrastructure. |
| BZX85C130 | 1.3 W power rating, DO-41 axial package, ±10% tolerance, higher ZZT (2000 Ω). | Requires through-hole assembly and larger board area; less precise regulation at low currents. | Choose for cost-sensitive, non-SMT designs where 130 V reference stability is secondary to power handling. |
Compared with 1N6027UR-1/TR, the 1N6027UR-1 lacks tape-and-reel logistics support, while BZX85C130 trades SMT compatibility and tight tolerance for higher power and lower unit cost - making the TR variant optimal for automated, high-reliability SMT production of precision HV references.
Availability
1N6027UR-1/TR is available at Aetrix Electronics and suitable for switch-mode power supplies, telecom surge protection, industrial sensor excitation, and photomultiplier biasing requiring stable component supply and traceable sourcing.
Supply support for 1N6027UR-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 1N6027UR-1/TR belongs to Microsemi's legacy DO-213AA Zener series designed for precision voltage regulation in mission-critical power and protection circuits where hermeticity, radiation tolerance, and thermal stability are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N6027UR-1/TR?
The 1N6027UR-1/TR has a nominal Zener voltage of 130 V with ±5% tolerance, indicated by the "B" suffix in its part nomenclature per Microsemi T4-LDS-0228-1. This means the actual measured VZ falls between 123.5 V and 136.5 V at 1.0 mA test current and 30 °C lead temperature.
Is the 1N6027UR-1/TR RoHS compliant?
Yes, the 1N6027UR-1/TR is RoHS compliant (e3 marking), featuring matte-tin end-cap plating suitable for lead-free reflow soldering at 260 °C for 10 seconds. RoHS compliance applies only to commercial-grade versions, as noted in the Microsemi datasheet revision T4-LDS-0228-1.
What package type does the 1N6027UR-1/TR use?
The 1N6027UR-1/TR uses the DO-213AA glass MELF package (also designated SOD80 or MLL34), with dimensions of 1.60–1.70 mm diameter and 3.30–3.70 mm length. Its hermetically sealed construction and end-cap terminations are optimized for surface-mount assembly and thermal performance on FR4 PCBs.
What is the maximum Zener current (IZM) for the 1N6027UR-1/TR?
The maximum Zener current for the 1N6027UR-1/TR is 99 mA, calculated per the formula IZM = PD/VZM, where PD = 0.5 W and VZM = 136.5 V (130 V × 1.05). This value is confirmed in the Electrical Characteristics table on page 3 of the Microsemi datasheet T4-LDS-0228-1.
Does the 1N6027UR-1/TR have radiation hardness certification?
Yes, the 1N6027UR-1/TR is inherently radiation hard per Microsemi MicroNote 050, a documented characteristic of its hermetic glass construction and metallurgical bonding. While not individually certified to MIL-STD-883, its design meets requirements for total ionizing dose (TID) resilience in space and nuclear instrumentation applications.
1N6027UR-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):
- 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-1/TR FAQ
1.How can I place an order for 1N6027UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6027UR-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 1N6027UR-1/TR reliable?
The price and inventory of 1N6027UR-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 1N6027UR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N6027UR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6027UR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6027UR-1/TR?
1N6027UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6027UR-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 1N6027UR-1/TR?
For technical support, including 1N6027UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6027UR-1/TR requirements.
6.How does Aetrix verify that 1N6027UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N6027UR-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 1N6027UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N6027UR-1/TR?
All 1N6027UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6027UR-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 1N6027UR-1/TR part is unused and in its original packaging.
Return procedure for 1N6027UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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