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Microchip Technology 1N3023BUR-1/TR
- Part No.:
- 1N3023BUR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AB, MELF (Glass)
- Datasheet:
-
1N3023BUR-1/TR.pdf
- Description:
- DIODE ZENER 13V 1W DO213AB
- Quantity:
- Payment:
- Shipping:
Inventory:49
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Product details
Overview
1N3023BUR-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 13 V at 19 mA test current, dynamic impedance of 10 Ω at IZT, and maximum reverse leakage current of 0.25 µA at 10 V. It serves as a precision voltage reference or regulation element in high-reliability power supply and protection circuits.
For engineers reviewing the 1N3023BUR-1/TR datasheet, 1N3023BUR-1/TR pinout, 1N3023BUR-1/TR application, or 1N3023BUR-1/TR equivalent, key selection criteria include its ±5% voltage tolerance (B-grade), -55 °C to +175 °C operating junction temperature range, 50 °C/W junction-to-end-cap thermal resistance, and MIL-PRF-19500/115 qualification eligibility (JAN/JANTX/JANTXV).
Technical Context
The 1N3023BUR-1/TR operates as a two-terminal, unidirectional Zener regulator with cathode-banded polarity-requiring the banded end to be biased positive relative to the anode for breakdown conduction. Its glass hermetic seal and metallurgically enhanced internal contact deliver low thermal resistance and radiation hardness per MicroNote 050.
It exhibits a sharp Zener knee at IZK = 19 mA, with ZZK = 700 Ω at 1.9 mA modulation, and maintains stable regulation across -55 °C to +175 °C due to a temperature coefficient of +0.085 %/°C. Derating begins linearly at 125 °C, reaching zero power at 175 °C per Figure 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13 V nominal at 19 mA - defines precise regulation point for feedback or clamping circuits |
| Power Dissipation (PD) | 1.0 W - supports continuous regulation in compact SMT layouts without forced cooling |
| Zener Impedance (ZZT) | 10 Ω at IZT - ensures minimal output voltage variation under load transients |
| Reverse Leakage (IR) | 0.25 µA at 10 V - enables ultra-low quiescent current operation in battery-backed systems |
| Junction Temp Range | -55 °C to +175 °C - qualified for aerospace, downhole, and military environments |
| Thermal Resistance (RθJEC) | 50 °C/W - allows direct thermal coupling to PCB copper or heatsink via end-cap mounting |
| Voltage Tolerance | ±5% (B-grade) - balances cost and precision for non-critical reference applications |
Pinout & Package
Package: DO-213AB (MELF/LL41), hermetically sealed glass cylindrical body with tin/lead or RoHS-compliant matte-tin finish on copper-clad steel terminals. Cathode identified by single black band. Axial coefficient of expansion ≈ +6 ppm/°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Regulated output node | Bias must be positive relative to anode to enter Zener breakdown; connects to regulated rail or error amplifier input |
| Anode (unbanded end) | Reference return path | Connects to system ground or lower-potential node; completes Zener conduction path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF construction | Eliminates moisture ingress and long-term parameter drift in harsh environments |
| Metallurgically bonded junction | Reduces thermal resistance and improves reliability under thermal cycling stress |
| MIL-PRF-19500/115 qualification path | Enables use in defense and space programs requiring JAN/JANTX/JANTXV screening |
| Radiation hardness (per MicroNote 050) | Supports operation in high-total-ionizing-dose (TID) environments without derating |
| Non-ESD-sensitive design | Allows handling without special static control beyond standard ESD-safe workstations |
Applications
| Power Supply Regulation | Aerospace Voltage Reference |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converters for avionics subsystems. IC Role / Device Role / Timing Role: Zener reference for TL431 or optocoupler-based error amplifiers. Use Value: Maintains ±1% output accuracy over -55 °C to +125 °C ambient with <10 mV line/load regulation error. |
Use Scenario: Providing bias voltage to radiation-hardened op-amps in satellite telemetry modules. IC Role / Device Role / Timing Role: Precision shunt reference replacing bulkier hybrid solutions. Use Value: Delivers stable 13 V reference with <0.01%/°C drift and immunity to 100 krad(Si) TID exposure. |
| Industrial Sensor Signal Conditioning | Military ESD Protection Clamp |
Use Scenario: Biasing bridge sensors in oilfield downhole pressure transducers exposed to 175 °C wellbores. IC Role / Device Role / Timing Role: High-temp Zener clamp limiting amplifier input swing. Use Value: Survives 1000+ thermal cycles between -55 °C and +175 °C while maintaining VZ stability within ±3%. |
Use Scenario: Secondary overvoltage clamp on MIL-STD-1275 compliant vehicle power inputs. IC Role / Device Role / Timing Role: Fast-response shunt protector parallel to TVS diodes. Use Value: Absorbs 1 W surge energy without parametric shift, verified per MIL-STD-883 Method 3015.8. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N3023B-1 (DO-41) | Same electrical specs, but axial-leaded DO-41 package; no surface-mount capability | Requires through-hole assembly; unsuitable for high-density PCBs or automated SMT lines | Select when legacy board rework or hand-soldered prototyping is required |
| MMBZ5243B (SOT-23) | Lower power (0.35 W), smaller footprint, ±5% tolerance, but not hermetically sealed or MIL-qualified | Limited to commercial-grade consumer electronics; not rated for >125 °C or radiation environments | Select only for cost-sensitive, non-military, low-power applications with no reliability certification needs |
Compared with 1N3023B-1 and MMBZ5243B, the 1N3023BUR-1/TR uniquely combines SMT compatibility, 1 W power handling, hermetic reliability, and MIL qualification-making it irreplaceable in mission-critical embedded systems where long-term parametric stability and environmental survivability are mandatory.
Availability
1N3023BUR-1/TR is available at Aetrix Electronics and suitable for aerospace power conditioning, downhole sensor biasing, and military ESD protection requiring stable component supply, full traceability, and extended lifecycle support.
Supply support for 1N3023BUR-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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets, with emphasis on radiation-hardened, high-temperature, and MIL-spec components.
The 1N3023BUR-1/TR belongs to Microsemi's legacy MIL-PRF-19500/115-qualified Zener diode family, engineered specifically for voltage regulation in extreme-environment electronics where hermeticity, thermal robustness, and long-term calibration stability are non-negotiable.
FAQ
What is the Zener voltage tolerance for 1N3023BUR-1/TR?
The 1N3023BUR-1/TR has a ±5% Zener voltage tolerance (denoted by "B" in the part nomenclature), meaning its actual VZ falls between 12.35 V and 13.65 V at 19 mA and 25 °C. This tolerance is maintained across the full -55 °C to +175 °C operating range, with temperature coefficient of +0.085 %/°C confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0285-1.
Is 1N3023BUR-1/TR suitable for surface-mount assembly?
Yes, the 1N3023BUR-1/TR uses the DO-213AB (MELF/LL41) surface-mount package with solderable matte-tin or tin/lead terminations, qualified per MIL-STD-750 Method 2026. Its 12 mm tape-and-reel option complies with EIA-481-1-A, and it withstands 260 °C for 10 seconds during reflow-making it fully compatible with standard SMT processes used for the 1N3023BUR-1/TR.
Does 1N3023BUR-1/TR meet military specifications?
Yes, the 1N3023BUR-1/TR is qualified per MIL-PRF-19500/115 and available in JAN, JANTX, and JANTXV reliability levels-subject to additional screening including temperature cycling, burn-in, and lot acceptance testing. The base commercial version (1N3023BUR-1/TR) supports qualification upgrade paths, and its hermetic glass construction satisfies the environmental robustness requirements of the specification.
What is the maximum reverse leakage current for 1N3023BUR-1/TR?
The maximum reverse leakage current (IR) for 1N3023BUR-1/TR is 0.25 µA at VR = 10 V and 25 °C, as specified in the Electrical Characteristics table on page 3. This ultra-low leakage enables use in high-impedance bias networks and battery-powered systems where standby current must remain below 1 µA-confirmed for the exact 1N3023BUR-1/TR variant.
Can 1N3023BUR-1/TR replace 1N3023B-1 in existing designs?
No-while electrically identical, the 1N3023BUR-1/TR uses DO-213AB (MELF) packaging versus the DO-41 axial-leaded package of 1N3023B-1. Direct replacement requires PCB layout revision to accommodate the cylindrical SMT footprint and end-cap solder pads. The 1N3023BUR-1/TR is not a drop-in substitute; it demands updated stencil design and placement programming for the 1N3023BUR-1/TR.
1N3023BUR-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):
- 13 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 9.9 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)
1N3023BUR-1/TR FAQ
1.How can I place an order for 1N3023BUR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N3023BUR-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 1N3023BUR-1/TR reliable?
The price and inventory of 1N3023BUR-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 1N3023BUR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N3023BUR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N3023BUR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N3023BUR-1/TR?
1N3023BUR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N3023BUR-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 1N3023BUR-1/TR?
For technical support, including 1N3023BUR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N3023BUR-1/TR requirements.
6.How does Aetrix verify that 1N3023BUR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N3023BUR-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 1N3023BUR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N3023BUR-1/TR?
All 1N3023BUR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N3023BUR-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 1N3023BUR-1/TR part is unused and in its original packaging.
Return procedure for 1N3023BUR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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