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Microchip Technology 1N6017UR/TR
- Part No.:
- 1N6017UR/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6017UR/TR.pdf
- Description:
- DIODE ZENER 51V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,827
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Product details
Overview
1N6017UR/TR from Microsemi is a 51 V, 500 mW surface-mount Zener diode in DO-213AA (MLL34/SOD80) MELF package, rated for ±5% voltage tolerance at 2 mA test current, with 180 Ω dynamic impedance and 0.1 µA reverse leakage at 39 V, used for precision voltage regulation in power supply feedback loops and reference circuits.
For engineers reviewing the 1N6017UR/TR datasheet, 1N6017UR/TR pinout, 1N6017UR/TR application, or 1N6017UR/TR equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (150 °C/W junction-to-end cap), low capacitance (<2 pF typical), RoHS-compliant matte-tin plating, and MIL-PRF-19500 screening compatibility for high-reliability designs.
Technical Context
This device operates as a two-terminal voltage reference by maintaining a stable 51 V across its terminals under reverse-biased breakdown conditions, with regulation validated at IZT = 2 mA and specified up to IZM = 39 mA maximum DC current. Its DO-213AA glass MELF construction provides hermetic sealing and inherent radiation hardness per MicroNote 050.
The diode exhibits a positive temperature coefficient of +0.096 %/°C and minimal capacitance (typical <2 pF), enabling stable performance across -65 °C to +175 °C junction temperature range while supporting low-noise analog references and overvoltage clamping in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 51 V ±5% at 2 mA - defines precise regulation point for feedback networks and voltage references |
| Power Dissipation PD | 0.5 W at 25 °C - sets maximum continuous power handling on FR4 board with recommended footprint |
| Dynamic Impedance ZZT | 180 Ω at 2 mA - determines output impedance and regulation stability under varying load currents |
| Reverse Leakage IR | 0.1 µA at 39 V - ensures minimal error current in high-impedance reference paths |
| Junction Temperature Range | -65 °C to +175 °C - supports operation in extended industrial, aerospace, and downhole environments |
| Thermal Resistance RθJL | 150 °C/W - enables accurate thermal modeling when mounted on end-cap heatsink or copper pour |
Pinout & Package
DO-213AA (SOD80 / MLL34) glass MELF package with hermetically sealed construction, cathode indicated by single band; terminals are metallurgically bonded end caps with RoHS-compliant matte-tin plating solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Regulated output node | Connected to higher potential in Zener mode; defines polarity for voltage reference or clamp function |
| Anode (unbanded end) | Reference ground node | Typically tied to system ground or feedback divider low-side; completes reverse-bias path |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF construction | Enables long-term reliability and moisture resistance without conformal coating in harsh environments |
| Inherent radiation hardness | Validated per Microsemi MicroNote 050 - suitable for space-qualified and nuclear instrumentation applications |
| Low capacitance (<2 pF typical) | Minimizes signal distortion and phase shift in high-frequency reference and timing circuits |
| MIL-PRF-19500 screening option | Supports military-grade reliability levels (JAN, JANTX, JANTXV, JANS) via prefix modification |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converters using optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Zener reference providing stable 51 V threshold to TL431 shunt regulator or discrete error amplifier. Use Value: Tight ±5% tolerance and low dynamic impedance ensure <±1% output regulation across line/load/temperature. | Use Scenario: Supplies precision bias voltage to bridge-based pressure transducers in factory automation systems. IC Role / Device Role / Timing Role: Two-terminal voltage reference establishing excitation level for Wheatstone bridge circuitry. Use Value: Low 0.1 µA leakage prevents measurement offset drift in high-impedance sensor interfaces. |
| Overvoltage Protection Clamp | Aerospace Power Monitoring |
Use Scenario: Protects ADC input pins from transient surges exceeding 51 V in data acquisition modules. IC Role / Device Role / Timing Role: Reverse-biased Zener acting as shunt clamp to divert excess energy to ground. Use Value: Fast response and 150 °C/W thermal resistance allow reliable clamping without thermal runaway. | Use Scenario: Provides stable reference for voltage monitoring in satellite power distribution units operating in radiation environments. IC Role / Device Role / Timing Role: Radiation-hardened Zener reference used in redundant bus voltage supervision circuits. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or derating in LEO missions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C51 | 51 V ±5%, 500 mW, DO-35 axial package - higher RθJA (500 °C/W), no MIL screening path | Limited to commercial PCB through-hole assembly; unsuitable for high-reliability or surface-mount production | Select when cost-sensitive prototyping requires axial leaded form factor and radiation hardness is not required |
| MMBZ5255B | 51 V ±5%, 350 mW, SOT-23 - lower power rating, 3-pin package with dual anodes, no glass MELF reliability | Not suitable for high-temperature or high-reliability use; lacks hermetic seal and radiation tolerance | Select only for space-constrained consumer applications where full 0.5 W dissipation and extended temperature range are unnecessary |
Compared with BZX55C51 and MMBZ5255B, the 1N6017UR/TR delivers superior thermal performance (150 °C/W vs. 500 °C/W), inherent radiation hardness, and direct MIL-PRF-19500 qualification path - critical for aerospace, defense, and industrial control systems requiring long-term stability and environmental resilience.
Availability
1N6017UR/TR is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor references, overvoltage protection clamps, aerospace power monitoring, and high-reliability embedded systems requiring stable component supply across extended temperature and radiation environments.
Supply support for 1N6017UR/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 mixed-signal components.
The 1N6017UR/TR belongs to Microsemi's legacy DO-213AA Zener diode family designed for precision voltage regulation in mission-critical systems where long-term stability, hermetic reliability, and environmental survivability are mandatory.
FAQ
What is the Zener voltage tolerance and test current for the 1N6017UR/TR?
The 1N6017UR/TR has a nominal Zener voltage of 51 V with ±5% tolerance, measured at a test current IZT of 2 mA. This tolerance is confirmed in the Electrical Characteristics table on page 3 of Microsemi T4-LDS-0228-1 Rev. 1, and applies to the commercial-grade UR variant with no prefix.
Is the 1N6017UR/TR RoHS compliant?
Yes, the 1N6017UR/TR is RoHS compliant, as indicated by the "e3" suffix in its full nomenclature (1N6017BUR-1 e3). Per the datasheet, RoHS-compliant matte-tin plating is available for commercial-grade devices only, and this version meets EU Directive 2011/65/EU requirements.
What package type does the 1N6017UR/TR use, and what are its key mechanical features?
The 1N6017UR/TR uses the DO-213AA (also labeled SOD80 or MLL34) glass MELF package. Key features include hermetic sealing, metallurgically bonded end caps, cathode band marking, and 0.04 g weight. Dimensions are A = 1.60–1.70 mm, B = 3.30–3.70 mm, C = 0.41–0.55 mm per page 5 of the datasheet.
Can the 1N6017UR/TR be used in high-temperature environments?
Yes, the 1N6017UR/TR supports junction temperatures from -65 °C to +175 °C. Its thermal resistance junction-to-end cap is 150 °C/W, allowing effective heat transfer when mounted on copper pours or heatsinks - making it suitable for under-hood automotive, downhole, and industrial control applications.
Does the 1N6017UR/TR have radiation hardness certification?
Yes, the 1N6017UR/TR exhibits inherent radiation hardness as documented in Microsemi MicroNote 050. While the commercial UR variant is not individually certified, the underlying DO-213AA Zener platform is qualified for radiation-tolerant applications including space and nuclear instrumentation per the manufacturer's technical note.
1N6017UR/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):
- 51 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
1N6017UR/TR FAQ
1.How can I place an order for 1N6017UR/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6017UR/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 1N6017UR/TR reliable?
The price and inventory of 1N6017UR/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6017UR/TR is usually 5 days.
3.What payment methods are accepted for 1N6017UR/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6017UR/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6017UR/TR?
1N6017UR/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6017UR/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 1N6017UR/TR?
For technical support, including 1N6017UR/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6017UR/TR requirements.
6.How does Aetrix verify that 1N6017UR/TR is sourced from the original manufacturer or authorized distributors?
All 1N6017UR/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 1N6017UR/TR meets industry standards.
7.What is the process for return or replacement of 1N6017UR/TR?
All 1N6017UR/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6017UR/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 1N6017UR/TR part is unused and in its original packaging.
Return procedure for 1N6017UR/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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