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Microchip Technology 1N6023UR/TR
- Part No.:
- 1N6023UR/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6023UR/TR.pdf
- Description:
- DIODE ZENER 91V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,880
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Product details
Overview
1N6023UR/TR from Microsemi is a surface-mount 500 mW Zener diode in DO-213AA (MLL34/SOD80) MELF package, rated for 91 V nominal Zener voltage at 2.0 mA test current, with ±5% tolerance (B suffix), 300 Ω dynamic impedance at IZT, and maximum reverse leakage of 0.1 µA at 73 V. It regulates voltage in precision reference and overvoltage protection circuits across industrial power supplies.
For engineers reviewing the 1N6023UR/TR datasheet, 1N6023UR/TR pinout, 1N6023UR/TR application, or 1N6023UR/TR equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (300 °C/W junction-to-ambient), low leakage (<0.1 µA), radiation-hardened construction, and RoHS-compliant matte-tin plating on commercial-grade units.
Technical Context
This device operates as a two-terminal voltage reference in reverse-biased breakdown mode, with regulation defined at IZT = 2.0 mA and VZ = 91 V. Its DO-213AA glass MELF package provides hermetic sealing and metallurgical bonding for high reliability under thermal cycling and radiation exposure.
It exhibits a positive temperature coefficient of +0.099 %/°C and typical capacitance below 12 pF, enabling stable performance in low-noise analog references and ESD-robust input protection stages where minimal parasitic capacitance is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 91 V at 2.0 mA - defines precise regulation point for feedback loops and voltage clamping |
| Power Dissipation | 0.5 W at 25 °C - sets maximum continuous power handling on FR4 board with 1 oz Cu |
| Zener Impedance | 300 Ω at IZT - determines regulation stability under varying load current |
| Reverse Leakage Current | ≤0.1 µA at 73 V - ensures minimal quiescent current in standby or high-impedance sensing nodes |
| Junction Temperature Range | −65 to +175 °C - supports operation in extended industrial and aerospace environments |
| Thermal Resistance | 300 °C/W junction-to-ambient - informs derating requirements for PCB layout and thermal management |
| Package Type | DO-213AA (MLL34/SOD80) MELF - enables automated placement and high-reliability hermetic sealing |
Pinout & Package
DO-213AA (MLL34/SOD80) is a cylindrical glass MELF package with two metallized end caps. Polarity is marked by a single cathode band; the banded end is the cathode (positive terminal during Zener operation). No discrete pins-terminals are solderable end caps per MIL-STD-750, method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode End Cap | Zener Anode Connection Point | Connected to higher-potential node in reverse-bias configuration; carries full Zener current during regulation |
| Anode End Cap | Zener Cathode Connection Point | Connected to lower-potential node (e.g., ground or return); forms reference potential for regulated output |
Key Features
| Feature | Design Value |
|---|---|
| Hermetically sealed glass MELF construction | Enables operation up to +175 °C junction temperature and immunity to moisture-induced degradation |
| Radiation-hardened design | Meets Microsemi MicroNote 050 specifications for total ionizing dose tolerance in space-grade applications |
| Low reverse leakage (≤0.1 µA) | Minimizes error in high-impedance voltage divider networks and precision reference buffers |
| RoHS-compliant matte-tin plating | Supports lead-free reflow soldering at 260 °C for 10 s without intermetallic degradation |
| ESD-insensitive per MIL-STD-750 Method 1020 | Eliminates need for handling precautions during assembly and field service |
Applications
| Industrial Power Supply Reference | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Precision voltage reference in isolated DC-DC converter feedback loop for 48 V telecom power systems. IC Role / Device Role / Timing Role: Zener diode providing stable 91 V reference to optocoupler input, enabling accurate output voltage regulation. Use Value: ±5% tolerance and +0.099 %/°C tempco ensure <±1.2% total drift over −40 to +85 °C ambient, meeting IEC 62368-1 safety margin requirements. | Use Scenario: Input-stage overvoltage clamp protecting downstream DC-DC controller IC from transient surges on 72 V battery rail. IC Role / Device Role / Timing Role: Two-terminal shunt regulator clamping voltage to 91 V before it reaches sensitive control logic. Use Value: 0.5 W power rating and 300 Ω ZZT limit clamping voltage excursion to ≤94 V at 100 mA surge, preventing latch-up in 5 V logic supply. |
| High-Temperature Sensor Interface | Radiation-Hardened Reference Source |
Use Scenario: Biasing circuit for RTD or thermistor bridge in downhole oil/gas instrumentation operating at 150 °C ambient. IC Role / Device Role / Timing Role: Stable Zener reference establishing common-mode voltage for instrumentation amplifier input stage. Use Value: −65 to +175 °C junction rating and hermetic DO-213AA package prevent parameter shift or failure under sustained high-temperature exposure. | Use Scenario: Voltage reference in satellite telemetry subsystem requiring TID tolerance >100 krad(Si). IC Role / Device Role / Timing Role: Radiation-hardened Zener providing calibration reference for ADC front-end in command receiver module. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or derating, reducing SWaP-C in LEO mission payloads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6023B-TR | Same 91 V/±5%/0.5 W specs but in axial DO-35 (DO204AH) package; no RoHS option; higher RθJA (350 °C/W) | Requires through-hole PCB assembly; unsuitable for high-density SMT layouts or automated pick-and-place | Select when legacy board compatibility or manual repairability outweighs SMT efficiency and thermal performance. |
| BZX85C91-TR | 91 V/±5%/1.3 W in DO-41; higher power but larger footprint; 500 Ω ZZT; not radiation-hardened | Supports higher surge energy clamping but lacks hermetic seal and radiation tolerance for aerospace use | Choose for cost-sensitive industrial power supplies where radiation hardness and extreme temperature are not required. |
Compared with 1N6023UR/TR, 1N6023B-TR offers identical electrical specs but inferior thermal performance and no RoHS compliance, while BZX85C91-TR trades radiation hardness and compact MELF form factor for higher power and lower unit cost in non-critical environments.
Availability
1N6023UR/TR is available at Aetrix Electronics and suitable for industrial power supply reference, overvoltage protection clamp, and high-temperature sensor interface applications requiring stable component supply and long-term obsolescence management.
Supply support for 1N6023UR/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 high-voltage analog components for aerospace, defense, and industrial markets.
The 1N6023UR/TR belongs to Microsemi's legacy MIL-PRF-19500–qualified Zener diode family, designed specifically for precision voltage regulation in harsh-environment systems where hermeticity, radiation tolerance, and wide temperature operation are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N6023UR/TR?
The 1N6023UR/TR has a nominal Zener voltage of 91 V with a ±5% tolerance, indicated by the "B" suffix in its part nomenclature. This means the actual measured VZ at 2.0 mA test current falls between 86.45 V and 95.55 V under standard conditions, ensuring predictable regulation in feedback and protection circuits.
Is the 1N6023UR/TR RoHS compliant?
Yes, the 1N6023UR/TR is RoHS compliant, as confirmed by the "e3" RoHS designation in its full part number and specification in the Microsemi datasheet. It features matte-tin plating on the DO-213AA end caps and is qualified for lead-free reflow soldering at 260 °C for 10 seconds.
What is the maximum reverse leakage current for the 1N6023UR/TR?
The 1N6023UR/TR has a maximum reverse leakage current of 0.1 µA at 73 V (80% of nominal 91 V), as specified in the Electrical Characteristics table. This ultra-low leakage supports high-impedance biasing and precision reference applications without introducing measurable error.
Does the 1N6023UR/TR have radiation-hardened properties?
Yes, the 1N6023UR/TR is inherently radiation-hardened per Microsemi MicroNote 050, due to its hermetically sealed glass DO-213AA construction and material selection. It is qualified for use in space and nuclear environments where total ionizing dose (TID) resilience is required.
What is the thermal resistance of the 1N6023UR/TR on an FR4 PCB?
The 1N6023UR/TR has a junction-to-ambient thermal resistance (RθJA) of 300 °C/W when mounted on a standard FR4 PCB with 1 oz copper and the recommended footprint. This value governs power derating above 25 °C ambient and must be applied in thermal design calculations.
1N6023UR/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):
- 91 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
1N6023UR/TR FAQ
1.How can I place an order for 1N6023UR/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6023UR/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 1N6023UR/TR reliable?
The price and inventory of 1N6023UR/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6023UR/TR is usually 5 days.
3.What payment methods are accepted for 1N6023UR/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6023UR/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6023UR/TR?
1N6023UR/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6023UR/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 1N6023UR/TR?
For technical support, including 1N6023UR/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6023UR/TR requirements.
6.How does Aetrix verify that 1N6023UR/TR is sourced from the original manufacturer or authorized distributors?
All 1N6023UR/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 1N6023UR/TR meets industry standards.
7.What is the process for return or replacement of 1N6023UR/TR?
All 1N6023UR/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6023UR/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 1N6023UR/TR part is unused and in its original packaging.
Return procedure for 1N6023UR/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6023UR/TR Tags
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