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Microchip Technology 1N6003UR-1/TR
- Part No.:
- 1N6003UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6003UR-1/TR.pdf
- Description:
- DIODE ZENER 13V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,039
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Product details
Overview
1N6003UR-1/TR from Microsemi is a surface-mount 500 mW Zener diode with nominal Zener voltage of 13 V, ±5% tolerance (B-suffix), 5 mA test current, and 600 Ω dynamic impedance at IZT; used for precision voltage regulation in power supply feedback loops and reference circuits.
For engineers reviewing the 1N6003UR-1/TR datasheet, 1N6003UR-1/TR pinout, 1N6003UR-1/TR application, or 1N6003UR-1/TR equivalent, key selection factors include Zener voltage accuracy, thermal resistance (300 °C/W), DO-213AA MELF package compatibility, and low leakage (<0.1 µA at 10.4 V).
Technical Context
This device operates as a two-terminal voltage reference in reverse breakdown mode, with regulation defined at IZT = 5 mA and VZ = 13 V. Its DO-213AA glass MELF package enables stable thermal performance and hermetic reliability.
It exhibits a positive temperature coefficient of +0.075 %/°C and maintains ≤0.1 µA reverse leakage at rated voltage, supporting stable biasing across -65 °C to +175 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13 V at 5 mA test current - defines precise regulation point for feedback networks |
| Power Dissipation | 0.5 W at 25 °C ambient - sets maximum continuous power handling on FR4 board |
| Zener Impedance (ZZT) | 600 Ω at 5 mA - determines output voltage stability under load transients |
| Reverse Leakage (IR) | <0.1 µA at 10.4 V - ensures minimal error current in high-impedance reference paths |
| Temp. Coefficient (αVZ) | +0.075 %/°C - quantifies voltage drift over temperature for system-level accuracy budgeting |
| Junction Temp. Range | -65 °C to +175 °C - supports operation in extended industrial and aerospace environments |
| Package | DO-213AA (SOD80/MLL34) MELF - provides hermetic sealing and standardized reflow compatibility |
Pinout & Package
DO-213AA (SOD80/MLL34) glass MELF package with axial symmetry and cathode band marking; terminals are metallurgically bonded end caps, 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 configuration; polarity critical for correct regulation |
| Anode (unbanded end) | Reference return node | Connected to circuit ground or lower-potential rail; completes reverse-bias path |
Key Features
| Feature | Design Value |
|---|---|
| Hermetically sealed glass construction | Enables long-term parameter stability and immunity to moisture-induced degradation |
| RoHS-compliant matte-tin plating (commercial grade) | Supports lead-free reflow assembly without compromising solderability or intermetallic formation |
| MIL-PRF-19500 screening option | Allows qualification for high-reliability applications including defense and space programs |
| Low capacitance (typ. <2 pF) | Minimizes high-frequency coupling in noise-sensitive analog reference and timing circuits |
| Radiation-hardened design | Validated per MicroNote 050 for total ionizing dose tolerance in radiation environments |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Provides stable 13 V reference in optocoupler-coupled feedback loop of isolated DC-DC converters. IC Role / Device Role / Timing Role: Zener voltage reference establishing regulation threshold for TL431 or similar shunt regulator. Use Value: Tight 5% tolerance and low dynamic impedance ensure ±1% output voltage accuracy across line/load/temperature. | Use Scenario: Supplies excitation voltage for bridge-based pressure transducers in factory automation systems. IC Role / Device Role / Timing Role: Precision voltage reference for ratiometric sensor signal conditioning. Use Value: Low leakage (<0.1 µA) prevents loading error in high-impedance Wheatstone bridge arms. |
| Automotive ECU Voltage Clamp | Test Equipment Calibration Reference |
Use Scenario: Clamps transient overvoltage on 12 V rail during load dump events in engine control units. IC Role / Device Role / Timing Role: Transient voltage suppressor protecting microcontroller I/O and ADC inputs. Use Value: Fast response and 175 °C max junction temperature support under-hood reliability requirements. | Use Scenario: Serves as traceable 13 V calibration standard in portable multimeter reference modules. IC Role / Device Role / Timing Role: Primary voltage reference source for self-calibration routines. Use Value: Hermetic DO-213AA package ensures long-term drift <10 ppm/1000 hrs per Microsemi reliability data. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C13 | 300 mW SOT-23 package; 13 V ±5%; ZZT = 30 Ω at 5 mA - lower impedance but lower power rating | Suitable for low-power portable electronics; not rated for >125 °C ambient or high-reliability screening | Select when board space is constrained and thermal load is <300 mW; verify derating at elevated temperatures. |
| 1N4743A | 1 W DO-41 package; 13 V ±5%; ZZT = 10 Ω at 21 mA - higher power, lower impedance, axial leads | Preferred for through-hole prototyping or high-current regulation where PCB layout allows axial components | Choose when >500 mW dissipation is required or MIL-PRF-19500 screening is unnecessary. |
Compared with BZX84-C13 and 1N4743A, the 1N6003UR-1/TR uniquely balances 500 mW power, DO-213AA hermetic reliability, and +0.075 %/°C tempco - making it optimal for surface-mount industrial power supplies requiring stable 13 V references across wide temperature ranges.
Availability
1N6003UR-1/TR is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, and automotive ECUs requiring stable component supply with consistent Zener voltage accuracy and thermal performance.
Supply support for 1N6003UR-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, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The 1N6003UR-1/TR belongs to Microsemi's legacy 1N5985BUR–1N6031BUR series of surface-mount Zener regulators, designed specifically for precision voltage reference and clamping in harsh-environment electronics where hermetic packaging and MIL-qualified variants are essential.
FAQ
What is the Zener voltage tolerance for 1N6003UR-1/TR?
The 1N6003UR-1/TR has a nominal Zener voltage of 13 V with ±5% tolerance, indicated by the "B" suffix in its part nomenclature per Microsemi's T4-LDS-0228-1 datasheet. This means the actual VZ falls between 12.35 V and 13.65 V when measured at 5 mA test current and 30 °C lead temperature. The 1N6003UR-1/TR is specified to maintain this tolerance across its full operating temperature range.
Does 1N6003UR-1/TR support lead-free reflow soldering?
Yes, the 1N6003UR-1/TR features RoHS-compliant matte-tin plating on its end caps and is qualified for lead-free reflow soldering up to 260 °C for 10 seconds per MIL-STD-750 Method 2026. Its DO-213AA glass package withstands standard JEDEC J-STD-020 profiles, and the 1N6003UR-1/TR is explicitly designated for commercial-grade RoHS compliance in Microsemi documentation.
What is the maximum reverse leakage current for 1N6003UR-1/TR?
The maximum reverse leakage current for 1N6003UR-1/TR is 0.1 µA at 10.4 V (80% of nominal VZ), as specified in the Electrical Characteristics table on page 3 of the T4-LDS-0228-1 datasheet. This low leakage ensures minimal error in high-impedance reference circuits and remains stable across the -65 °C to +175 °C junction temperature range of the 1N6003UR-1/TR.
Can 1N6003UR-1/TR be used in high-reliability military applications?
Yes - while the base 1N6003UR-1/TR is a commercial-grade part, Microsemi offers screened versions compliant with MIL-PRF-19500 (e.g., JAN, JANTX, JANTXV prefixes) for the same 1N6003 family. These variants undergo rigorous environmental and electrical testing, and the 1N6003UR-1/TR's underlying DO-213AA construction and internal metallurgical bonds make it suitable for qualification into high-reliability programs when ordered with appropriate screening suffixes.
What is the thermal resistance of 1N6003UR-1/TR, and how does it affect PCB layout?
The 1N6003UR-1/TR has a junction-to-ambient thermal resistance (RθJA) of 300 °C/W when mounted on a standard FR4 board with 1 oz copper and Microsemi's recommended footprint. This value requires careful PCB layout: adequate copper area around both end-cap pads and short thermal paths are essential to avoid exceeding the 175 °C max junction temperature at 500 mW dissipation. Derating begins above 25 °C ambient, per Figure 1 in the 1N6003UR-1/TR datasheet.
1N6003UR-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):
- 13 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
1N6003UR-1/TR FAQ
1.How can I place an order for 1N6003UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6003UR-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 1N6003UR-1/TR reliable?
The price and inventory of 1N6003UR-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 1N6003UR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N6003UR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6003UR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6003UR-1/TR?
1N6003UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6003UR-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 1N6003UR-1/TR?
For technical support, including 1N6003UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6003UR-1/TR requirements.
6.How does Aetrix verify that 1N6003UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N6003UR-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 1N6003UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N6003UR-1/TR?
All 1N6003UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6003UR-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 1N6003UR-1/TR part is unused and in its original packaging.
Return procedure for 1N6003UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6003UR-1/TR Tags
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