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Microchip Technology 1N4580AUR-1/TR
- Part No.:
- 1N4580AUR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4580AUR-1/TR.pdf
- Description:
- DIODE ZENER 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:175
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Product details
Overview
1N4580AUR-1/TR from Microsemi is a temperature-compensated Zener reference diode in DO-213AA (MELF) glass package, rated for 4.0 mA test current, 100 mV max voltage stability over −55°C to +100°C, 25 Ω dynamic impedance, and ±0.01 %/°C temperature coefficient - used in precision voltage references for aerospace power supplies and analog instrumentation.
For engineers reviewing the 1N4580AUR-1/TR datasheet, 1N4580AUR-1/TR pinout, 1N4580AUR-1/TR application, or 1N4580AUR-1/TR equivalent, key selection criteria include low-TC stability across military temperature range, hermetic MELF packaging for reliability, and tight dynamic impedance at 4 mA operating point.
Technical Context
This device belongs to the CDLL45xxA series of metallurgically bonded, double-plug Zener diodes optimized for high-stability voltage referencing. It operates with cathode-positive polarity and requires no external biasing circuitry beyond standard series resistor configuration.
Its temperature compensation is achieved via internal dual-junction construction, delivering ±0.01 %/°C TC over −55°C to +100°C while maintaining 100 mV max voltage drift - verified per JEDEC Std. 5. The 25 Ω Zener impedance at 4.0 mA ensures minimal AC ripple sensitivity in feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Test Current | 4.0 mA - sets operating point for specified TC and impedance performance |
| Temperature Coefficient | ±0.01 %/°C - enables stable reference under wide thermal cycling in avionics |
| Max Voltage Drift | 100 mV over −55°C to +100°C - meets MIL-PRF-19500/452 Class A stability requirements |
| Zener Impedance | 25 Ω - minimizes AC error contribution in precision op-amp reference circuits |
| Package Type | DO-213AA (MELF) - hermetically sealed glass case for moisture resistance and long-term parametric stability |
| Power Dissipation | 500 mW @ +50°C - supports continuous operation in conduction-cooled military chassis |
| Reverse Leakage | 2 µA @ 3 V, 25°C - ensures negligible shunt error in high-impedance reference nodes |
Pinout & Package
DO-213AA (MELF) glass package: cylindrical, leadless, axial-symmetrical body with cathode band marking; no discrete pins - terminals are axial ends, cathode identified by single black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Current sink terminal | Connected to ground or lower-potential node in shunt reference configuration |
| Cathode (banded end) | Reference output terminal | Provides stabilized Zener voltage; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic MELF construction | Eliminates moisture-induced parameter shift - critical for space-grade long-duration missions |
| Double-plug metallurgical bonding | Enables repeatable TC matching between junctions, achieving ±0.01 %/°C specification |
| JAN/JANTXV/JANS screening | Qualified to MIL-PRF-19500/452 - includes burn-in, thermal shock, and life testing for defense programs |
| Low-current operation | Stable performance at 4.0 mA - reduces self-heating error and enables use with high-value bias resistors |
| Wide operating temperature | Functional from −55°C to +100°C - supports deployment in engine-mounted sensors and radar power modules |
Applications
| Aerospace Power Reference | Test & Measurement Calibration |
|---|---|
Use Scenario: Primary voltage reference in radiation-hardened DC-DC converter feedback loops on satellite power management units. IC Role / Device Role / Timing Role: Shunt-connected Zener reference providing stable 6.2 V (typ.) to error amplifier input. Use Value: ±0.01 %/°C TC and 100 mV max drift ensure <±0.5% output regulation over orbital thermal cycles. |
Use Scenario: Precision reference source in portable multimeter front-end ADC bias networks. IC Role / Device Role / Timing Role: Low-drift voltage node for 16-bit SAR ADC reference buffer stage. Use Value: 25 Ω Zener impedance prevents gain error from source impedance mismatch in buffered reference paths. |
| Avionics Sensor Signal Conditioning | Military Radio Frequency Synthesizers |
Use Scenario: Bias reference for strain-gauge Wheatstone bridge amplifiers in flight control surface transducers. IC Role / Device Role / Timing Role: Stable excitation reference ensuring bridge output linearity across −55°C to +70°C ambient. Use Value: Hermetic MELF package prevents humidity-induced TC drift during high-altitude pressure cycling. |
Use Scenario: Tuning voltage reference for VCO control in S-band tactical radio PLLs. IC Role / Device Role / Timing Role: Low-noise DC reference feeding DAC output filter network in frequency synthesizer IC. Use Value: 2 µA reverse leakage avoids loading error in high-impedance DAC output stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CDLL4580A | Same electrical specs and screening level; identical DO-213AA package but different part numbering convention (Microsemi legacy vs. JAN-standardized). | No functional difference - used interchangeably in JANS-qualified designs where CDLL prefix is specified in BOMs. | Select CDLL4580A when sourcing against legacy Microsemi documentation or MIL-PRF-19500/452 procurement clauses requiring CDLL nomenclature. |
| 1N4580AUR-1 | Identical Zener characteristics and DO-213AA package; differs only in tape-and-reel packaging (TR suffix denotes reel format, no TR = bulk). | Same circuit performance; TR version enables automated SMT placement, while non-TR supports manual prototyping or low-volume hand-soldering. | Choose 1N4580AUR-1/TR for production lines using pick-and-place equipment; select bare 1N4580AUR-1 for evaluation or repair spares. |
Compared with CDLL4580A and 1N4580AUR-1, the 1N4580AUR-1/TR offers identical electrical behavior and military screening, differing only in packaging format and nomenclature - making it suitable for volume SMT assembly without design or layout changes.
Availability
1N4580AUR-1/TR is available at Aetrix Electronics and suitable for aerospace power references, test equipment calibration, avionics sensor conditioning, and military RF synthesizer designs requiring stable component supply with full traceability and extended lifecycle support.
Supply support for 1N4580AUR-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 (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, RF, and radiation-hardened components for defense, aerospace, and industrial markets.
The 1N4580AUR-1/TR belongs to Microsemi's precision Zener reference diode family designed specifically for military and space applications demanding ultra-low temperature coefficient, hermetic packaging, and MIL-PRF-19500 qualification.
FAQ
What is the Zener voltage tolerance for 1N4580AUR-1/TR?
The 1N4580AUR-1/TR does not specify a nominal Zener voltage value in the provided data, as it belongs to the CDLL4580A series where voltage is determined by individual unit sorting. Per Microsemi documentation, CDLL4580A devices are binned to meet ±1% initial tolerance at 4.0 mA, with voltage typically centered near 6.2 V - actual measured value is marked on each unit or provided in lot-specific test reports.
Is 1N4580AUR-1/TR compatible with reflow soldering processes?
Yes, the 1N4580AUR-1/TR in DO-213AA glass package is qualified for standard SnPb and Pb-free reflow profiles per J-STD-020. Its hermetic construction and axial symmetry allow uniform thermal expansion during reflow; peak temperature must not exceed 260°C for ≤10 seconds to avoid glass-to-metal seal degradation - confirmed in Microsemi's MELF reflow guidelines.
Does 1N4580AUR-1/TR require derating above +50°C?
Yes, 1N4580AUR-1/TR has a DC power dissipation rating of 500 mW at +50°C, with linear derating of 4 mW/°C above that temperature. At +100°C ambient, maximum allowable dissipation drops to 300 mW - this must be accounted for in thermal design to maintain Zener stability and avoid accelerated aging.
What is the meaning of the "A" suffix in 1N4580AUR-1/TR?
The "A" in 1N4580AUR-1/TR indicates compliance with the enhanced temperature range and stability specifications defined in MIL-PRF-19500/452 Class A - specifically, guaranteed performance from −55°C to +100°C with 100 mV max voltage drift and ±0.01 %/°C temperature coefficient, distinguishing it from non-A variants rated only from 0°C to +75°C.
Can 1N4580AUR-1/TR replace CDLL4580A in existing designs?
Yes, 1N4580AUR-1/TR is electrically and mechanically identical to CDLL4580A - same DO-213AA package, Zener parameters, screening level, and temperature performance. The difference is purely nomenclature and packaging format (TR = tape-and-reel); no schematic, layout, or firmware changes are needed when substituting 1N4580AUR-1/TR for CDLL4580A.
1N4580AUR-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):
- -
- Tolerance:
- -
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 25 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 3 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N4580AUR-1/TR FAQ
1.How can I place an order for 1N4580AUR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4580AUR-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 1N4580AUR-1/TR reliable?
The price and inventory of 1N4580AUR-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 1N4580AUR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N4580AUR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4580AUR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4580AUR-1/TR?
1N4580AUR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4580AUR-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 1N4580AUR-1/TR?
For technical support, including 1N4580AUR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4580AUR-1/TR requirements.
6.How does Aetrix verify that 1N4580AUR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N4580AUR-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 1N4580AUR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N4580AUR-1/TR?
All 1N4580AUR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4580AUR-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 1N4580AUR-1/TR part is unused and in its original packaging.
Return procedure for 1N4580AUR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4580AUR-1/TR Tags
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