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Microchip Technology 1N6031UR/TR
- Part No.:
- 1N6031UR/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6031UR/TR.pdf
- Description:
- DIODE ZENER 200V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,932
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Product details
Overview
1N6031UR/TR from Microsemi is a surface-mount 200 V, ±5% tolerance Zener diode in DO-213AA (MLL34/SOD80) MELF glass package, rated for 500 mW power dissipation at 25°C, with 0.1 µA max reverse leakage at 152 V and 2700 Ω dynamic impedance at 1 mA test current - used for precision voltage regulation in industrial power supplies and overvoltage protection circuits.
For engineers reviewing the 1N6031UR/TR datasheet, 1N6031UR/TR pinout, 1N6031UR/TR application, or 1N6031UR/TR equivalent, key selection criteria include Zener voltage accuracy (±5%), low temperature coefficient (+0.110 %/°C), hermetic glass packaging for high-reliability environments, and RoHS-compliant matte-tin end-cap plating suitable for automated SMT assembly.
Technical Context
This device operates as a two-terminal voltage reference in reverse-biased breakdown mode, with regulation defined at IZT = 1.0 mA per JEDEC specification. Its Zener voltage of 200 V is specified with tight 5% tolerance (B-suffix), and it maintains stable regulation across -65°C to +175°C junction temperature range.
Thermal performance is characterized by RθJA = 300°C/W on FR4 board (1 oz Cu), requiring derating above 25°C ambient. The DO-213AA package uses metallurgically bonded end caps and exhibits minimal capacitance (<3.3 pF typical), supporting fast transient response in protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 200 V ±5% at IZT = 1.0 mA - defines precise clamping threshold for overvoltage protection. |
| Power Dissipation (PD) | 0.5 W at TA ≤ 25°C - sets maximum continuous power handling without thermal runaway. |
| Dynamic Impedance (ZZT) | 2700 Ω at IZT = 1.0 mA - indicates regulation stiffness; lower values improve voltage stability under load variation. |
| Reverse Leakage (IR) | 0.1 µA max at VR = 152 V - ensures minimal standby current in high-impedance bias networks. |
| Junction Temperature Range | -65°C to +175°C - enables operation in extended industrial and aerospace environments. |
| Package Type | DO-213AA (SOD80/MLL34) MELF glass - provides hermetic sealing, high reliability, and compatibility with standard MELF pick-and-place equipment. |
Pinout & Package
DO-213AA (SOD80/MLL34) is a cylindrical MELF-style glass package with two metallized end caps serving as anode and cathode terminals. Polarity is marked by a single black band indicating the cathode end, which must be held positive relative to the anode during Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener regulation terminal | Connected to higher potential node; reverse-biased to maintain 200 V reference voltage across load. |
| Anode (unbanded end) | Reference return terminal | Connected to circuit ground or lower-potential rail; completes Zener conduction path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass construction | Enables long-term stability and moisture resistance in harsh environments without conformal coating. |
| Metallurgically bonded end caps | Ensures robust mechanical attachment and low thermal resistance between junction and end cap (RθJL = 150°C/W). |
| RoHS-compliant matte-tin plating | Supports lead-free reflow soldering (260°C, 10 s) while maintaining solderability per MIL-STD-750 Method 2026. |
| ESD insensitivity | Withstands >4 kV HBM per MIL-STD-750 Method 1020 - eliminates need for external ESD protection in board-level design. |
Applications
| Industrial Power Supply Regulation | Overvoltage Protection Circuit |
|---|---|
Use Scenario: Stabilizing reference voltage in isolated DC-DC converter feedback loops operating up to 200 V input rails. IC Role / Device Role / Timing Role: Zener diode providing precise 200 V shunt reference for optocoupler-based error amplification. Use Value: Tight ±5% tolerance and +0.110 %/°C tempco ensure output voltage drift remains within ±1.5% over -40°C to +85°C ambient. | Use Scenario: Clamping transient surges on 120/240 VAC rectified bus lines in motor drive inverters. IC Role / Device Role / Timing Role: Two-terminal shunt protector absorbing energy during line spikes exceeding 200 V peak. Use Value: 500 mW rating and low 0.1 µA leakage allow reliable clamping without loading normal operating conditions. |
| High-Reliability Test Equipment | Aerospace Voltage Reference |
Use Scenario: Calibrating high-voltage measurement subsystems in automated test equipment requiring traceable references. IC Role / Device Role / Timing Role: Primary Zener reference element in 200 V calibration divider networks. Use Value: Hermetic DO-213AA package and MIL-PRF-19500 screening options support 20+ year calibration stability. | Use Scenario: Providing backup voltage reference in satellite power management units exposed to total ionizing dose. IC Role / Device Role / Timing Role: Radiation-hardened Zener regulator maintaining regulation after 100 krad(Si) exposure. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or redundancy in LEO missions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6031B-1 (DO-35 axial) | Same electrical specs but in through-hole DO-35 package; no RoHS option; higher RθJA (350°C/W). | Used where manual assembly or legacy board layouts require axial leads. | Select when retrofitting existing DO-35 footprints or avoiding SMT reflow processes. |
| BZX85C200 (Nexperia) | 200 V, ±5%, 1.3 W rating; TO-204AA (DO-41); higher power but larger footprint and ±0.09 %/°C tempco. | Suitable for higher-power dissipation needs where board space allows larger axial package. | Choose when >500 mW continuous power is required and thermal margin is constrained. |
Compared with 1N6031B-1, the 1N6031UR/TR offers SMT compatibility and RoHS compliance; compared with BZX85C200, it delivers smaller MELF footprint and superior temperature coefficient stability despite lower power rating.
Availability
1N6031UR/TR is available at Aetrix Electronics and suitable for industrial power supplies, overvoltage protection circuits, and high-reliability test equipment requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1N6031UR/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 1N6031UR/TR belongs to Microsemi's legacy DO-213AA Zener diode family, designed specifically for precision voltage regulation in mission-critical systems where hermeticity, radiation tolerance, and long-term parametric stability are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N6031UR/TR?
The 1N6031UR/TR has a nominal Zener voltage of 200 V with a ±5% tolerance, indicated by the 'B' suffix in its part nomenclature. This means the actual measured VZ at IZT = 1.0 mA falls between 190 V and 210 V across the qualified temperature range, meeting JEDEC 1N6031BUR-1 specifications.
Is the 1N6031UR/TR RoHS compliant?
Yes, the 1N6031UR/TR is RoHS compliant, as confirmed by the 'e3' designation in its full part number and stated in the datasheet. It features matte-tin end-cap plating and meets EU RoHS Directive 2011/65/EU requirements for commercial-grade devices.
What is the maximum reverse leakage current for the 1N6031UR/TR?
The 1N6031UR/TR specifies a maximum reverse leakage current (IR) of 0.1 µA at VR = 152 V, measured at 30°C lead temperature. This low leakage supports high-impedance bias networks and minimizes standby power loss in precision regulation circuits.
Can the 1N6031UR/TR be used in high-temperature environments?
Yes, the 1N6031UR/TR is rated for junction and storage temperatures from -65°C to +175°C. Its DO-213AA glass package and metallurgical construction enable reliable operation in extended industrial and aerospace environments where thermal cycling and sustained high temperatures occur.
What does the 'TR' suffix indicate in 1N6031UR/TR?
The 'TR' suffix in 1N6031UR/TR denotes tape-and-reel packaging per EIA-481-B standard using 12 mm carrier tape. This format supports automated SMT placement and is the standard shipping configuration for volume orders of the 1N6031UR/TR.
1N6031UR/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):
- 200 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
1N6031UR/TR FAQ
1.How can I place an order for 1N6031UR/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6031UR/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 1N6031UR/TR reliable?
The price and inventory of 1N6031UR/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6031UR/TR is usually 5 days.
3.What payment methods are accepted for 1N6031UR/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6031UR/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6031UR/TR?
1N6031UR/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6031UR/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 1N6031UR/TR?
For technical support, including 1N6031UR/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6031UR/TR requirements.
6.How does Aetrix verify that 1N6031UR/TR is sourced from the original manufacturer or authorized distributors?
All 1N6031UR/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 1N6031UR/TR meets industry standards.
7.What is the process for return or replacement of 1N6031UR/TR?
All 1N6031UR/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6031UR/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 1N6031UR/TR part is unused and in its original packaging.
Return procedure for 1N6031UR/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6031UR/TR Tags
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