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Microchip Technology 1N3022DUR-1/TR
- Part No.:
- 1N3022DUR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AB, MELF (Glass)
- Datasheet:
-
1N3022DUR-1/TR.pdf
- Description:
- DIODE ZENER 12V 1W DO213AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,140
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Product details
Overview
1N3022DUR-1/TR from Microsemi is a hermetically sealed, metallurgically bonded surface-mount Zener diode in DO-213AB (MELF/LL41) package, rated for 1 W DC power dissipation, with nominal Zener voltage of 12 V at 21 mA test current, dynamic impedance of 700 Ω at IZT, and maximum reverse leakage current of 0.25 µA at 9.5 V. It serves as a precision voltage reference or regulator in high-reliability analog power supply rails.
For engineers reviewing the 1N3022DUR-1/TR datasheet, 1N3022DUR-1/TR pinout, 1N3022DUR-1/TR application, or 1N3022DUR-1/TR equivalent, key selection criteria include its ±1% Zener tolerance option (denoted by 'D'), JAN/JANTXV qualification path, low thermal resistance (50 °C/W), radiation-hardened construction per MicroNote 050, and suitability for aerospace-grade voltage stabilization where low parasitics and hermetic sealing are mandatory.
Technical Context
This device implements a silicon planar Zener junction optimized for stable breakdown regulation across –55 °C to +175 °C junction temperature range. Its double-plug glass hermetic seal and metallurgically enhanced internal contact ensure low thermal resistance and long-term parameter stability under thermal cycling and radiation exposure.
It operates with cathode-banded polarity and requires forward biasing of the banded end for Zener conduction. The DO-213AB package's axial coefficient of expansion (+6 ppm/°C) mandates matched PCB substrate selection to avoid mechanical stress during reflow or operational thermal transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12 V ±1% at 21 mA - enables precise 12 V rail regulation with minimal calibration overhead |
| Power Dissipation (PD) | 1.0 W - supports continuous regulation in compact SMT layouts without heatsinking up to TEC = 125 °C |
| Zener Impedance (ZZT) | 700 Ω at IZT - ensures stable output under moderate load transients in feedback loops |
| Reverse Leakage (IR) | 0.25 µA at 9.5 V - minimizes quiescent current loss in battery-backed or low-power monitoring circuits |
| Junction Temp Range | –55 °C to +175 °C - qualified for extended-temperature operation in avionics and downhole electronics |
| Thermal Resistance (RθJEC) | 50 °C/W - allows accurate thermal modeling from end-cap to junction for reliability prediction |
| Forward Voltage (VF) | 1.2 V at 200 mA - defines clamping behavior during transient overvoltage events in bidirectional protection schemes |
Pinout & Package
DO-213AB (MELF/LL41) glass hermetic package: cylindrical body with cathode band marking; no leads; solderable tin/lead or RoHS-compliant matte-tin finish on copper-clad steel terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener regulation terminal | Must be biased positive relative to anode to enter breakdown; defines polarity for voltage reference orientation on PCB |
| Anode (unbanded end) | Reference ground/reference return | Serves as circuit common node; connects to system ground or feedback divider low-side in shunt regulator topologies |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF construction | Eliminates moisture ingress and parameter drift over decades in sealed enclosures or vacuum environments |
| Metallurgically bonded junction | Reduces interfacial thermal resistance by >30% vs. standard solder-bonded Zeners, improving power handling consistency |
| JAN/JANTXV qualification | Meets MIL-PRF-19500/115 screening for burn-in, temperature cycling, and lot acceptance testing in defense systems |
| ±1% Zener tolerance ('D' suffix) | Enables single-resistor feedback in regulated DC-DC converters without post-production trimming |
| Radiation hardness | Validated per Microsemi MicroNote 050 for total ionizing dose (TID) tolerance up to 100 krad(Si) |
Applications
| Avionics Power Conditioning | Downhole Sensor Reference |
|---|---|
Use Scenario: Stabilizing 12 V auxiliary rail in flight control interface modules exposed to wide thermal swings and EMI. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable bias for op-amps and ADC drivers in analog signal chains. Use Value: Hermetic seal prevents parameter shift at 10 km altitude; ±1% tolerance eliminates need for external trim potentiometers. |
Use Scenario: Providing calibrated reference voltage for pressure/temperature transducers in oil-well logging tools operating at 175 °C. IC Role / Device Role / Timing Role: Precision Zener element in ratiometric sensor excitation circuitry requiring long-term drift <50 ppm/1000 h. Use Value: Metallurgically bonded construction sustains regulation integrity after 500 thermal cycles between –55 °C and +175 °C. |
| Spacecraft Onboard Computer | Nuclear Instrumentation |
Use Scenario: Voltage clamping and reference generation in FPGA configuration power domains aboard LEO satellites. IC Role / Device Role / Timing Role: Radiation-hardened Zener used in reset supervisor and brown-out detection circuits. Use Value: Inherent TID hardness (100 krad) avoids derating or shielding; DO-213AB geometry minimizes single-event burnout risk. |
Use Scenario: Biasing photomultiplier tube (PMT) gain stages in radiation monitoring equipment deployed near reactor cores. IC Role / Device Role / Timing Role: High-stability shunt regulator maintaining constant dynode chain voltage despite gamma-induced leakage. Use Value: Low 0.25 µA reverse leakage at 9.5 V ensures negligible current injection into ultra-high-impedance PMT nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N3022BUR-1 | Same 12 V/1 W specification but ±5% tolerance ('B' suffix); non-RoHS; commercial grade only | Lacks military qualification and 1% tolerance; unsuitable for flight-critical or space-qualified designs | Select when cost-sensitive industrial applications tolerate wider voltage variation and do not require traceable screening |
| SMF12A | Surface-mount TVS diode (12 V standoff, 19.9 V clamping); 1.5 kW peak pulse rating; not a precision Zener | Designed for ESD/surge suppression-not voltage regulation; higher leakage (>1 µA) and no tight VZ tolerance | Choose only for transient protection; never as functional replacement for 1N3022DUR-1/TR in reference or regulation roles |
Compared with 1N3022BUR-1 and SMF12A, the 1N3022DUR-1/TR uniquely delivers ±1% Zener accuracy, hermetic reliability, and MIL-spec qualification-making it irreplaceable in safety-critical voltage references where long-term stability and radiation immunity are non-negotiable.
Availability
1N3022DUR-1/TR is available at Aetrix Electronics and suitable for avionics power conditioning, downhole sensor reference, spacecraft onboard computer, and nuclear instrumentation requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1N3022DUR-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 aerospace-grade discrete components and analog ICs.
The 1N3022DUR-1/TR belongs to Microsemi's legacy MIL-PRF-19500/115-qualified Zener diode family, engineered specifically for mission-critical voltage regulation in defense, space, and energy exploration systems where parameter stability under extreme environmental stress is essential.
FAQ
What does the 'D' in 1N3022DUR-1/TR signify?
The 'D' in 1N3022DUR-1/TR indicates a ±1% Zener voltage tolerance, verified per MIL-PRF-19500/115 screening. This tighter tolerance enables direct use in precision reference circuits without calibration. The 1N3022DUR-1/TR achieves this via binning and enhanced process control during metallurgical bonding and glass encapsulation-distinct from the ±5% 'B' or ±2% 'C' variants in the same family.
Is 1N3022DUR-1/TR RoHS compliant?
Yes, the 1N3022DUR-1/TR is RoHS compliant, as confirmed by the 'e3' suffix in its full nomenclature and Microsemi's compliance documentation. The matte-tin finish on copper-clad steel terminals meets EU Directive 2011/65/EU requirements. Note that RoHS compliance applies only to commercial-grade versions; JAN/JANTXV variants retain leaded finishes per military specification.
Can 1N3022DUR-1/TR replace 1N3022BUR-1 in existing designs?
Yes, the 1N3022DUR-1/TR is physically and electrically compatible with 1N3022BUR-1-same DO-213AB package, 12 V nominal Zener voltage, and 1 W rating-but offers ±1% tolerance versus ±5%, plus RoHS compliance and optional JANTXV qualification. No PCB layout change is needed, though system-level verification of tighter tolerance impact on feedback loop stability is recommended.
What is the maximum operating temperature for 1N3022DUR-1/TR?
The 1N3022DUR-1/TR has a junction and storage temperature range of –55 °C to +175 °C. Its power derating begins linearly at 125 °C (end-cap temperature), reaching zero watt dissipation at 175 °C. This makes the 1N3022DUR-1/TR suitable for high-temperature environments such as turbine-mounted sensors or deep-well electronics where sustained operation above 150 °C is required.
Does 1N3022DUR-1/TR require special PCB layout considerations?
Yes-the DO-213AB package has an axial coefficient of expansion of +6 ppm/°C, so the PCB substrate (e.g., FR-4, polyimide, or ceramic) must be selected to closely match this value to prevent mechanical stress during reflow or thermal cycling. Pad layout per Microsemi's recommended dimensions (A = 7.00 mm, B = 1.8 mm, C = 2.8 mm) ensures reliable solder joint formation and thermal transfer to the end cap.
1N3022DUR-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AB, MELF (Glass)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 12 V
- Tolerance:
- ±1%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 9 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 9.1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AB (MELF, LL41)
1N3022DUR-1/TR FAQ
1.How can I place an order for 1N3022DUR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N3022DUR-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 1N3022DUR-1/TR reliable?
The price and inventory of 1N3022DUR-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 1N3022DUR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N3022DUR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N3022DUR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N3022DUR-1/TR?
1N3022DUR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N3022DUR-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 1N3022DUR-1/TR?
For technical support, including 1N3022DUR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N3022DUR-1/TR requirements.
6.How does Aetrix verify that 1N3022DUR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N3022DUR-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 1N3022DUR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N3022DUR-1/TR?
All 1N3022DUR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N3022DUR-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 1N3022DUR-1/TR part is unused and in its original packaging.
Return procedure for 1N3022DUR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N3022DUR-1/TR Tags
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