Microchip Technology 1N6006UR-1/TR
- Part No.:
- 1N6006UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6006UR-1/TR.pdf
- Description:
- DIODE ZENER 18V 500MW DO213AA
- Quantity:
- Payment:

- Shipping:

Inventory:3,088
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Product details
Overview
1N6006UR-1/TR from Microsemi is a surface-mount 18 V, 5% tolerance Zener diode in DO-213AA (SOD-80/MELF) package, rated for 500 mW power dissipation at 25°C, with 42 mA test current (IZT), 600 Ω dynamic impedance (ZZT), and ±0.083%/°C temperature coefficient - used for precision voltage regulation in power supply feedback loops and reference circuits.
For engineers reviewing the 1N6006UR-1/TR datasheet, 1N6006UR-1/TR pinout, 1N6006UR-1/TR application, or 1N6006UR-1/TR equivalent, key selection criteria include Zener voltage tolerance (±5%), thermal resistance (300°C/W junction-to-ambient), low leakage (<0.1 µA at 14.4 V), RoHS-compliant matte-tin plating, and MELF package reliability for high-reliability industrial and aerospace designs.
Technical Context
This device operates as a two-terminal voltage reference in reverse-biased breakdown mode, with regulation defined at IZT = 42 mA and VZ = 18.0 V ±5%. Its DO-213AA glass-encapsulated MELF construction provides hermetic sealing, radiation hardness per MicroNote 050, and ESD insensitivity per MIL-STD-750 Method 1020.
Thermal performance is specified for mounting on FR4 PCB with 1 oz copper and recommended footprint: RθJA = 300°C/W and RθJL = 150°C/W. The cathode band denotes polarity, and operation requires the banded end to be positive relative to the anode for Zener conduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 18.0 V ±5% at 42 mA - defines stable regulation point for feedback networks requiring tight voltage references. |
| Power Dissipation (PD) | 0.5 W at 25°C ambient - limits continuous operating current to ~28 mA at 18 V without derating. |
| Dynamic Impedance (ZZT) | 600 Ω at 42 mA - determines output voltage variation under load transients; lower values improve regulation stability. |
| Reverse Leakage (IR) | <0.1 µA at 14.4 V - ensures minimal quiescent current draw in high-impedance bias/reference circuits. |
| Temp. Coefficient (αVZ) | +0.083%/°C - enables predictable drift compensation in temperature-critical analog references. |
| Junction Temp. Range | –65°C to +175°C - supports operation in extended industrial and aerospace environments. |
| Forward Voltage (VF) | 1.1 V at 200 mA - relevant for polarity verification and ESD-safe handling during assembly. |
Pinout & Package
DO-213AA (SOD-80 / MELF) glass hermetic package: cylindrical body with metallized end caps; cathode identified by single black band; RoHS-compliant matte-tin plating; 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 in Zener mode; defines reference voltage at this terminal relative to anode. |
| Anode (unbanded end) | Reference ground node | Serves as return path for Zener current; must be held at lower potential than cathode for regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetically sealed MELF construction | Enables long-term stability and moisture resistance in harsh environments without conformal coating. |
| Radiation-hardened design | Validated per Microsemi MicroNote 050 - suitable for space-qualified and high-altitude avionics applications. |
| Low capacitance (typ. <3 pF) | Minimizes signal coupling and noise injection in RF-adjacent or high-speed control circuits. |
| MIL-PRF-19500 screening option | Supports military-grade reliability levels (JAN/JANTX/JANTXV/JANS) via prefix addition - traceable lot control. |
| ESD-insensitive (MIL-STD-750 Method 1020) | Eliminates need for special ESD handling during SMT placement or manual assembly. |
Applications
| Industrial Power Supply Feedback | Aerospace Voltage Reference |
|---|---|
|
Use Scenario: Regulating output voltage in isolated DC-DC converters using optocoupler feedback. IC Role / Device Role / Timing Role: Zener reference providing stable 18 V threshold for TL431 or error amplifier biasing. Use Value: Tight 5% tolerance and low ZZT ensure <±1% output regulation across line/load/temperature variations. |
Use Scenario: Providing primary voltage reference in satellite power management units (PMUs). IC Role / Device Role / Timing Role: Radiation-hardened voltage clamp protecting ADC input stages and LDO enable thresholds. Use Value: Hermetic DO-213AA package and proven radiation tolerance support >10-year mission life in LEO orbit. |
| Test Equipment Calibration | Automotive ECU Sensor Biasing |
|
Use Scenario: Generating precise 18 V reference for multimeter front-end analog circuitry. IC Role / Device Role / Timing Role: Stable shunt reference establishing known voltage for ADC full-scale calibration. Use Value: Low tempco (+0.083%/°C) and minimal IR drift enable <5 ppm/°C reference stability over –40°C to +85°C. |
Use Scenario: Biasing pressure or temperature sensor bridges in engine control modules. IC Role / Device Role / Timing Role: Low-leakage (0.1 µA) Zener supplying excitation voltage to Wheatstone bridge sensors. Use Value: Minimal current draw preserves battery life in always-on diagnostic circuits while maintaining bridge accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C18LT1G | 18 V ±5%, SOT-23 package, 350 mW rating, 20 Ω ZZT, but higher IR (1 µA @ 14.4 V) and plastic encapsulation. | Lower power density and non-hermetic construction limit use in high-reliability or high-temp (>125°C) systems. | Select when board space is constrained and cost sensitivity outweighs radiation/moisture requirements. |
| MMBZ5245B | 18 V ±5%, SOT-23, 350 mW, 25 Ω ZZT, but only rated to +150°C junction and lacks MIL-PRF-19500 screening path. | Not qualified for aerospace or defense programs requiring traceable military screening or radiation data. | Prefer for commercial automotive infotainment where JEDEC compliance suffices and thermal margin is adequate. |
Compared with BZX84-C18LT1G and MMBZ5245B, the 1N6006UR-1/TR delivers superior thermal robustness (175°C TJ), hermetic reliability, and radiation hardness - critical for mission-critical systems where long-term parametric stability and environmental resilience are non-negotiable.
Availability
1N6006UR-1/TR is available at Aetrix Electronics and suitable for industrial power supplies, aerospace PMUs, test equipment calibration circuits, and automotive ECU sensor biasing requiring stable component supply across extended temperature and lifecycle demands.
Supply support for 1N6006UR-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, radiation-hardened, and security-focused analog and mixed-signal components.
The 1N6006UR-1/TR belongs to Microsemi's legacy DO-213AA Zener series designed for precision voltage regulation in defense, aerospace, and industrial systems demanding hermetic packaging and extended temperature operation.
FAQ
What is the Zener voltage tolerance and test current for the 1N6006UR-1/TR?
The 1N6006UR-1/TR has a nominal Zener voltage of 18.0 V with ±5% tolerance, measured at a test current (IZT) of 42 mA. This tolerance band defines the guaranteed regulation range (17.1 V to 18.9 V) under specified thermal conditions, and the 42 mA IZT ensures stable operation within the device's optimal dynamic impedance region.
Is the 1N6006UR-1/TR RoHS compliant?
Yes, the 1N6006UR-1/TR is RoHS compliant (per e3 marking), featuring matte-tin plating on its DO-213AA end caps. RoHS compliance applies only to commercial-grade versions; military-screened variants (e.g., JAN or JANTX prefixes) may use tin-lead plating and are not RoHS compliant unless explicitly specified.
What is the maximum reverse leakage current for the 1N6006UR-1/TR?
The 1N6006UR-1/TR exhibits a maximum reverse leakage current (IR) of 0.1 µA at VR = 14.4 V (80% of nominal VZ). This ultra-low leakage supports high-impedance reference and biasing applications where standby current must remain below nanoampere levels without compromising regulation accuracy.
Can the 1N6006UR-1/TR be used in high-temperature environments?
Yes, the 1N6006UR-1/TR is rated for junction and storage temperatures from –65°C to +175°C. When mounted on FR4 with 1 oz copper per recommended footprint, its thermal resistance (RθJA = 300°C/W) allows reliable operation up to +125°C ambient - validated for extended-life industrial and aerospace deployments.
Does the 1N6006UR-1/TR have radiation hardness documentation?
Yes, the 1N6006UR-1/TR inherits radiation hardness characteristics documented in Microsemi MicroNote 050. Its DO-213AA glass/MELF construction and silicon process yield inherent tolerance to total ionizing dose (TID) and single-event effects - supporting qualification for low-earth orbit (LEO) and avionics applications.
1N6006UR-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):
- 18 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
1N6006UR-1/TR FAQ
1.How can I place an order for 1N6006UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6006UR-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 1N6006UR-1/TR reliable?
The price and inventory of 1N6006UR-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 1N6006UR-1/TR is usually 5 days.
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Once your 1N6006UR-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 1N6006UR-1/TR?
For technical support, including 1N6006UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6006UR-1/TR requirements.
6.How does Aetrix verify that 1N6006UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N6006UR-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 1N6006UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N6006UR-1/TR?
All 1N6006UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6006UR-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 1N6006UR-1/TR part is unused and in its original packaging.
Return procedure for 1N6006UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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