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Microchip Technology 1N6003UR/TR
- Part No.:
- 1N6003UR/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6003UR/TR.pdf
- Description:
- DIODE ZENER 13V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,271
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Product details
Overview
1N6003UR/TR from Microsemi is a surface-mount 13 V Zener diode in DO-213AA (SOD-80/MELF) package, rated for 500 mW power dissipation, ±5% voltage tolerance, and 5 mA test current, used for precision voltage regulation in power supply feedback loops and reference circuits.
For engineers reviewing the 1N6003UR/TR datasheet, 1N6003UR/TR pinout, 1N6003UR/TR application, or 1N6003UR/TR equivalent, this part serves as a RoHS-compliant, glass-encapsulated, hermetically sealed Zener regulator with low dynamic impedance (600 Ω at IZT), minimal temperature coefficient (+0.075 %/°C), and ESD-insensitive operation per MIL-STD-750 Method 1020.
Technical Context
This device operates in reverse breakdown to maintain stable 13 V output across 0.1–25 mA operating current range, with 600 Ω dynamic impedance at 5 mA and 750 Ω near knee (IZK = 0.25 mA). Its DO-213AA MELF package enables high thermal reliability and radiation hardness per MicroNote 050.
Designed for commercial-grade applications, it features tin-lead or matte-tin end-cap plating (RoHS e3 option), cathode band polarity marking, and tape-and-reel packaging (TR suffix). It meets MIL-PRF-19500 screening levels when prefixed with MQ/MX/MV/CDS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 13 V ±5% at 5 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. |
| Zener Impedance ZZT | 600 Ω at IZT = 5 mA - determines regulation stability under load transients. |
| Reverse Leakage IR | 0.1 µA at 10.4 V - ensures minimal quiescent current in high-impedance bias networks. |
| Temp. Coefficient αVZ | +0.075 %/°C - quantifies voltage drift over temperature for accuracy-critical references. |
| Max Regulator Current IZM | 9.9 mA - derived from PD/VZ(min), limiting safe DC current under worst-case tolerance. |
| Forward Voltage VF | 1.1 V at 200 mA - supports use as clamp or protection diode in forward conduction mode. |
Pinout & Package
DO-213AA (SOD-80 / MELF) glass package: cylindrical hermetically sealed body with metallized end caps; cathode identified by single black band; no leads - terminals are axial end caps only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference node in Zener configuration | Connected to lower-potential side of regulated circuit; forms return path for Zener current. |
| Cathode (banded end) | Zener regulation terminal | Connected to higher-potential side; voltage referenced to anode; band indicates polarity for correct orientation. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF construction | Enables long-term stability and resistance to moisture/humidity-induced parameter shift. |
| Low capacitance (typ. 38 pF) | Minimizes high-frequency loading in RF bias and timing circuits without degrading signal integrity. |
| ESD insensitivity (MIL-STD-750 Method 1020) | Eliminates need for external ESD protection in assembly and field operation. |
| Radiation-hardened design | Validated per Microsemi MicroNote 050 for TID tolerance in aerospace and defense environments. |
| RoHS-compliant (e3) option | Meets EU Directive 2011/65/EU with matte-tin end-cap plating; no lead content in commercial grade. |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Provides stable 13 V reference for optocoupler-based feedback in isolated DC-DC converters. IC Role / Device Role / Timing Role: Zener regulator supplying reference voltage to TL431 or optocoupler LED anode. Use Value: Maintains ±1% output regulation over -40°C to +125°C with <600 Ω dynamic impedance limiting loop gain variation. |
Use Scenario: Sets bias point for bridge-based pressure transducers in factory automation systems. IC Role / Device Role / Timing Role: Precision shunt reference establishing excitation voltage for Wheatstone bridge sensors. Use Value: Delivers 13 V ±5% with +0.075 %/°C drift, enabling <0.1% full-scale error over industrial temperature range. |
| Overvoltage Clamp Protection | Programmable Logic Controller Input Conditioning |
Use Scenario: Clamps transient surges on 12 V rail in automotive control modules. IC Role / Device Role / Timing Role: Shunt protector diverting excess energy above 13 V to ground during load dump events. Use Value: Responds within nanoseconds with 0.1 µA leakage below clamp threshold, preserving system standby current budget. |
Use Scenario: Conditions 24 V digital input signals to 13 V logic-compatible level in PLC backplanes. IC Role / Device Role / Timing Role: Voltage-limited interface element protecting FPGA I/O pins from overvoltage stress. Use Value: Withstands repeated 1 kV ESD strikes (per MIL-STD-750) while maintaining regulation integrity after event. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6003UR-1 | No TR suffix - bulk packaging; identical electrical specs and DO-213AA package. | Not optimized for automated SMT placement; requires manual or tube-fed assembly. | Select 1N6003UR/TR for pick-and-place production; choose 1N6003UR-1 for prototyping or low-volume hand-soldering. |
| BZX84-C13 | SOT-23 package (3.0 × 1.4 mm), 350 mW rating, ±5% tolerance, 13 V nominal - smaller size but lower power and higher thermal resistance. | Limited to low-power portable electronics; unsuitable for 0.5 W sustained dissipation or high-reliability industrial use. | Choose BZX84-C13 only when board space is constrained and power demand stays below 200 mW; otherwise prefer 1N6003UR/TR for thermal margin and ruggedness. |
Compared with 1N6003UR-1 and BZX84-C13, the 1N6003UR/TR delivers full 500 mW capability in a hermetic MELF package with proven radiation hardness and ESD immunity - critical for industrial, aerospace, and high-stability analog designs where reliability outweighs footprint savings.
Availability
1N6003UR/TR is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor references, overvoltage clamping circuits, and programmable logic controller input conditioning requiring stable component supply and long-term parametric consistency.
Supply support for 1N6003UR/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 radiation-hardened components for aerospace, defense, and industrial markets.
The 1N6003UR/TR belongs to Microsemi's legacy DO-213AA Zener series designed for precision voltage regulation in mission-critical systems where hermetic sealing, thermal stability, and ESD resilience are mandatory.
FAQ
What is the Zener voltage tolerance and test current for the 1N6003UR/TR?
The 1N6003UR/TR has a nominal Zener voltage of 13 V with ±5% tolerance, measured at a test current (IZT) of 5 mA. This tolerance and test condition are confirmed in the Electrical Characteristics table on page 3 of Microsemi's T4-LDS-0228-1 datasheet. The 1N6003UR/TR maintains regulation within this band across its specified operating temperature range.
Is the 1N6003UR/TR RoHS compliant?
Yes - the "e3" suffix in the full part number 1N6003UR/TR indicates RoHS compliance with matte-tin end-cap plating, as stated in the Part Nomenclature section of the datasheet. This applies only to commercial-grade versions; military-screened variants (e.g., MQ-prefix) retain tin-lead plating unless otherwise specified.
What is the maximum continuous Zener current for the 1N6003UR/TR?
The maximum dc Zener current (IZM) for the 1N6003UR/TR is 9.9 mA, calculated per Note 3 on page 4 using PD/VZ(min) = 0.5 W / 12.35 V. This value represents the absolute upper limit for continuous operation at 25°C ambient; derating is required above 25°C per Figure 1.
Does the 1N6003UR/TR have a defined polarity marking, and how is it oriented in circuit?
Yes - the 1N6003UR/TR uses a single black cathode band to indicate polarity. In Zener regulation mode, the banded (cathode) end must be held at a higher potential than the unbanded (anode) end. This orientation is mandatory for proper breakdown operation and is documented in the Mechanical and Packaging section on page 2.
Can the 1N6003UR/TR be used in high-reliability or aerospace applications?
Yes - the 1N6003UR/TR is based on the MIL-PRF-19500 qualified 1N6003BUR-1 series. When ordered with MQ (JAN), MX (JANTX), MV (JANTXV), or CDS (JANS) prefixes, it undergoes military-level screening. Even in commercial form, its hermetic glass DO-213AA package and radiation-hardened design per MicroNote 050 support demanding environments.
1N6003UR/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/TR FAQ
1.How can I place an order for 1N6003UR/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6003UR/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/TR reliable?
The price and inventory of 1N6003UR/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/TR is usually 5 days.
3.What payment methods are accepted for 1N6003UR/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6003UR/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6003UR/TR?
1N6003UR/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6003UR/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/TR?
For technical support, including 1N6003UR/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6003UR/TR requirements.
6.How does Aetrix verify that 1N6003UR/TR is sourced from the original manufacturer or authorized distributors?
All 1N6003UR/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/TR meets industry standards.
7.What is the process for return or replacement of 1N6003UR/TR?
All 1N6003UR/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6003UR/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/TR part is unused and in its original packaging.
Return procedure for 1N6003UR/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6003UR/TR Tags
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