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Microchip Technology 1N6020UR/TR
- Part No.:
- 1N6020UR/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6020UR/TR.pdf
- Description:
- DIODE ZENER 68V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,080
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Product details
Overview
1N6020UR/TR from Microsemi is a surface-mount 68 V, 500 mW Zener diode in DO-213AA (MLL34/SOD80) MELF package with ±5% voltage tolerance, 2 mA test current, and 240 Ω dynamic impedance at IZT; used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the 1N6020UR/TR datasheet, 1N6020UR/TR pinout, 1N6020UR/TR application, or 1N6020UR/TR equivalent, this page delivers verified electrical parameters, thermal derating behavior, RoHS-compliant commercial-grade availability, and direct alternatives for voltage reference design in industrial and aerospace power systems.
Technical Context
This Zener diode operates in reverse breakdown with cathode-banded polarity, requiring the banded end to be held positive relative to the anode for regulation. Its metallurgically bonded glass construction ensures stable leakage performance (IR ≤ 0.1 µA at VR = 52 V) and inherent radiation hardness per MicroNote 050.
The device exhibits a +0.097 %/°C temperature coefficient and minimal junction capacitance (typ. <1 pF at VR = 0 V), enabling stable DC reference generation across –65°C to +175°C junction temperature range without significant drift or parasitic coupling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 68 V ±5% at IZT = 2 mA - defines precise regulation threshold for feedback sensing |
| Power Dissipation | 0.5 W at 25°C ambient - sets maximum continuous power handling on FR4 board |
| Zener Impedance | 240 Ω at IZT = 2 mA - determines output voltage stability under load transients |
| Reverse Leakage | ≤0.1 µA at VR = 52 V - ensures low quiescent current in standby regulation |
| Junction Temp Range | –65°C to +175°C - supports operation in extreme environmental conditions |
| Thermal Resistance | RθJA = 300°C/W - informs PCB copper area requirements for thermal management |
| Temp Coefficient | +0.097 %/°C - quantifies voltage drift per degree Celsius rise |
Pinout & Package
DO-213AA (SOD80 / MLL34) hermetically sealed glass MELF package with tin-lead or RoHS-compliant matte-tin end-cap plating; cathode identified by single black band; weight 0.04 g; tape-and-reel packaging per EIA-481-B (12 mm tape).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Regulated output node | Connected to higher-potential side of circuit; must be biased positive relative to anode for Zener conduction |
| Anode (unbanded end) | Reference return node | Connected to lower-potential side (e.g., ground or feedback divider tap); completes regulation path |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF construction | Enables long-term reliability and moisture resistance in harsh environments |
| Metallurgical bonding | Ensures low thermal resistance and stable electrical interface between die and end caps |
| ESD insensitivity (MIL-STD-750, Method 1020) | Eliminates need for external ESD protection during handling and assembly |
| Radiation-hardened design | Validated per Microsemi MicroNote 050 for TID tolerance in space and nuclear applications |
| RoHS-compliant option (e3 suffix) | Meets EU Directive 2011/65/EU for lead-free commercial-grade variants |
Applications
| Switch-Mode Power Supply Feedback | Aerospace Voltage Reference |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Zener reference element setting precise error amplifier threshold. Use Value: 68 V nominal voltage enables high-side sensing with margin above 48 V rail; ±5% tolerance ensures consistent loop gain across production lots. | Use Scenario: Provides stable reference for analog-to-digital conversion in satellite telemetry power monitoring. IC Role / Device Role / Timing Role: Precision DC voltage clamp in radiation-prone onboard power subsystems. Use Value: Inherent radiation hardness and –65°C to +175°C operation eliminate need for shielding or derating in LEO missions. |
| Industrial Overvoltage Protection | Test Equipment Calibration Reference |
Use Scenario: Clamps transient surges on 48 V DC bus in factory automation controllers. IC Role / Device Role / Timing Role: Shunt regulator absorbing excess energy during line spikes. Use Value: 0.5 W power rating and 240 Ω Zener impedance limit clamping voltage overshoot to <72 V under 20 mA surge. | Use Scenario: Serves as traceable voltage standard in portable multimeter calibration fixtures. IC Role / Device Role / Timing Role: Stable 68 V reference source for DMM full-scale verification. Use Value: Low 0.1 µA leakage and +0.097 %/°C tempco enable ±0.1% accuracy over 15–35°C lab environment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6020UR-1 | Same electrical specs but axial DO-35 (DO204AH) package; no tape-and-reel option | Requires through-hole PCB layout; unsuitable for automated SMT assembly | Select when legacy board compatibility or manual prototyping is required |
| BZX55-C68 | 68 V ±5%, 500 mW, DO-35 package; higher ZZT (500 Ω typical); non-radiation-hardened | Lacks MIL-PRF-19500 screening and radiation tolerance; limited to commercial temperature range | Select for cost-sensitive consumer applications where radiation hardness is not required |
Compared with 1N6020UR/TR, the 1N6020UR-1 offers identical regulation performance but mandates through-hole assembly, while BZX55-C68 provides lower-cost alternative with reduced thermal stability and no radiation qualification-making 1N6020UR/TR optimal for SMT-enabled, high-reliability designs.
Availability
1N6020UR/TR is available at Aetrix Electronics and suitable for switch-mode power supplies, aerospace telemetry systems, and industrial overvoltage protection circuits requiring stable component supply with guaranteed RoHS compliance and MELF-package consistency.
Supply support for 1N6020UR/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, radiation-hardened, and aerospace-grade analog and discrete components.
The 1N6020UR/TR belongs to Microsemi's legacy 1N5985BUR–1N6031BUR Zener series designed for precision voltage regulation in mission-critical power systems where long-term stability, wide temperature operation, and environmental resilience are mandatory.
FAQ
What is the Zener voltage tolerance and test current for the 1N6020UR/TR?
The 1N6020UR/TR has a nominal Zener voltage of 68 V with ±5% tolerance, measured at a test current (IZT) of 2 mA. This tolerance ensures predictable regulation performance across manufacturing lots, and the 2 mA test point aligns with industry-standard characterization for medium-voltage Zeners used in feedback networks.
Is the 1N6020UR/TR RoHS compliant?
Yes, the 1N6020UR/TR is RoHS compliant (e3 suffix indicates matte-tin plating), meeting EU Directive 2011/65/EU. This applies only to the commercial-grade version; military-screened variants (e.g., JANTXV) retain tin-lead plating and are exempt from RoHS requirements per MIL-PRF-19500.
What package type does the 1N6020UR/TR use, and how is polarity marked?
The 1N6020UR/TR uses the DO-213AA (SOD80/MLL34) glass MELF package. Polarity is marked by a single black cathode band on one end cap; the banded end must be biased positive relative to the unbanded anode end for proper Zener regulation.
Does the 1N6020UR/TR have radiation hardness certification?
Yes, the 1N6020UR/TR inherits inherent radiation hardness documented in Microsemi MicroNote 050. While not individually certified to MIL-STD-883, its hermetic glass construction and metallurgical bonding provide proven total ionizing dose (TID) resilience suitable for low-earth orbit and terrestrial nuclear environments.
What is the maximum reverse leakage current specification for the 1N6020UR/TR?
The 1N6020UR/TR specifies a maximum reverse leakage current (IR) of 0.1 µA at VR = 52 V (80% of nominal VZ). This ultra-low leakage ensures minimal power loss in high-impedance reference circuits and maintains regulation accuracy even at elevated temperatures up to +175°C.
1N6020UR/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):
- 68 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
1N6020UR/TR FAQ
1.How can I place an order for 1N6020UR/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6020UR/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 1N6020UR/TR reliable?
The price and inventory of 1N6020UR/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6020UR/TR is usually 5 days.
3.What payment methods are accepted for 1N6020UR/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6020UR/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6020UR/TR?
1N6020UR/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6020UR/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 1N6020UR/TR?
For technical support, including 1N6020UR/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6020UR/TR requirements.
6.How does Aetrix verify that 1N6020UR/TR is sourced from the original manufacturer or authorized distributors?
All 1N6020UR/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 1N6020UR/TR meets industry standards.
7.What is the process for return or replacement of 1N6020UR/TR?
All 1N6020UR/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6020UR/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 1N6020UR/TR part is unused and in its original packaging.
Return procedure for 1N6020UR/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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