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Microchip Technology 1N4580A
- Part No.:
- 1N4580A
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N4580A.pdf
- Description:
- DIODE ZENER 6.4V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,833
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Product details
Overview
1N4580A from Microsemi is a 6.4 V temperature-compensated Zener reference diode in DO-7 (DO-204AA) glass axial-leaded package, rated for 4.0 mA test current, 0.01 %/°C temperature coefficient, 25 Ω dynamic impedance, and operation from –65 °C to +175 °C. It serves as a precision voltage reference in high-stability analog instrumentation and military-grade power supply feedback circuits.
For engineers reviewing the 1N4580A datasheet, 1N4580A pinout, 1N4580A application, or 1N4580A equivalent, key selection criteria include its low TC (0.01 %/°C), tight 6.4 V ±5% nominal tolerance, hermetic DO-7 packaging, MIL-PRF-19500/452 qualification readiness, and 4.0 mA operating point optimized for minimal thermal drift under stable bias conditions.
Technical Context
The 1N4580A uses internal metallurgical bonding to achieve stable Zener breakdown at precisely 6.4 V with minimal curvature in the VZ vs. IZ curve across its 4.0 mA test current. Its temperature compensation architecture combines two opposing TC regions to cancel drift over –55 °C to +100 °C.
This device operates in reverse-bias mode with cathode-positive polarity, requires no external components for basic reference use, and maintains <2.0 µA reverse leakage at 3 V - enabling low-power, high-impedance sensing in precision ADC references and voltage monitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.4 V ±5% at 4.0 mA - defines nominal reference level with predictable deviation in production calibration. |
| Temperature Coefficient (αVZ) | 0.01 %/°C - ensures ≤0.64 mV/°C drift over –55 °C to +100 °C, critical for wide-temperature industrial sensors. |
| Zener Test Current (IZT) | 4.0 mA - optimal bias point where VZ stability and TC cancellation are specified and validated. |
| Dynamic Impedance (ZZT) | 25 Ω at IZT - limits output voltage variation under load transients; enables stable regulation in closed-loop feedback. |
| Max Reverse Current (IR) | 2.0 µA at 3 V - ensures negligible error contribution in high-impedance reference divider networks. |
| Operating Temperature Range | –65 °C to +175 °C - supports deployment in aerospace, downhole, and engine-control environments. |
| Package | DO-7 (DO-204AA) - hermetically sealed glass axial package with tin-lead leads, MIL-STD-750 compliant. |
Pinout & Package
DO-7 (DO-204AA) glass axial-leaded package with cathode band marking; leads are tin-lead plated and solderable per MIL-STD-750 Method 2026. Polarity: cathode (banded end) must be biased positive relative to anode for Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to circuit common; establishes reference potential baseline for VZ measurement. |
| Cathode (banded end) | Reference output node | Provides stabilized 6.4 V output when reverse-biased; must be held at higher potential than anode. |
Key Features
| Feature | Design Value |
|---|---|
| Temperature-compensated Zener structure | 0.01 %/°C TC over –55 °C to +100 °C enables stable reference without external compensation circuitry. |
| Hermetic DO-7 glass package | Enables long-term reliability in harsh environments including high humidity, radiation, and thermal cycling. |
| MIL-PRF-19500/452 qualification path | Supports military-grade sourcing via JAN/JANTX/JANTXV prefixes and "–1" suffix (e.g., JANTX1N4580A-1). |
| Nonsensitive to ESD | Complies with MIL-STD-750 Method 1020 - eliminates need for handling precautions during board assembly. |
| Flexible tolerance options | Tighter tolerances (e.g., ±1%, ±2%) available via suffix notation (e.g., 1N4580A-1%) for calibrated instrument designs. |
Applications
| High-Accuracy Data Acquisition Systems | Aerospace Power Supply Feedback |
|---|---|
Use Scenario: Precision 16-bit+ ADC reference in environmental monitoring equipment operating from –40 °C to +85 °C. IC Role / Device Role / Timing Role: Voltage reference source establishing full-scale input range for analog front-end. Use Value: 0.01 %/°C TC and 2.0 µA leakage ensure <0.02% FS error contribution across temperature, eliminating recalibration. |
Use Scenario: Feedback reference in triple-redundant DC-DC converter for satellite bus regulation. IC Role / Device Role / Timing Role: Primary voltage setpoint element in isolated error amplifier loop. Use Value: Hermetic DO-7 package and –65 °C to +175 °C rating support mission-critical operation in vacuum and thermal extremes. |
| Military Instrumentation Calibration | Downhole Oilfield Sensor Electronics |
Use Scenario: Portable field calibrator used to verify pressure transmitters and thermocouple conditioners. IC Role / Device Role / Timing Role: Stable 6.4 V reference for internal DAC and comparator thresholds. Use Value: MIL-PRF-19500/452 qualification path and 4.0 mA IZT enable traceable metrology-grade performance. |
Use Scenario: Signal conditioning module deployed in oil/gas wellhead telemetry systems at 150 °C ambient. IC Role / Device Role / Timing Role: Reference for RTD-to-digital conversion and sensor excitation current control. Use Value: Guaranteed operation up to +175 °C and low TC minimize drift-induced measurement offset in high-temp logging tools. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4574A | Same 6.4 V nominal, but 1.0 mA IZT and 0.0005 %/°C TC - lower bias current, tighter TC. | Better suited for ultra-low-power, narrow-temperature-range portable instruments. | Select 1N4574A when system bias current is constrained to ≤1.0 mA and TC below 0.001 %/°C is required. |
| 1N4584A | Same 6.4 V nominal and 4.0 mA IZT, but 0.0005 %/°C TC - identical bias, superior TC. | Preferred for extended-temperature calibration standards where <0.001 %/°C drift is mandatory. | Choose 1N4584A when maximum TC performance is prioritized over cost, and 4.0 mA bias is acceptable. |
Compared with 1N4574A and 1N4584A, the 1N4580A offers the highest bias current (4.0 mA) among low-TC Zeners in this family - delivering improved noise immunity and dynamic impedance (25 Ω) at the expense of slightly relaxed TC (0.01 %/°C), making it optimal for ruggedized, medium-precision applications.
Availability
1N4580A is available at Aetrix Electronics and suitable for high-reliability power supply feedback, aerospace instrumentation, and military calibration equipment requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 1N4580A 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, radiation-hardened, and precision analog components for defense, aerospace, and industrial markets.
The 1N4565–1N4584A series was designed specifically to deliver ultra-stable 6.4 V references with selectable temperature coefficients and military qualification paths for mission-critical analog signal chains.
FAQ
What is the nominal Zener voltage and tolerance of the 1N4580A?
The 1N4580A has a nominal Zener voltage of 6.4 V with a standard tolerance of ±5% at 4.0 mA test current. Tighter tolerances such as ±1% or ±2% are available by adding suffixes like "-1%" or "-2%" to the part number (e.g., 1N4580A-1%). This allows calibration-grade selection without redesigning the reference network.
What is the recommended operating current for the 1N4580A?
The 1N4580A is characterized and optimized for a Zener test current (IZT) of 4.0 mA. Operating at this current ensures specified voltage accuracy, dynamic impedance (25 Ω), and temperature coefficient (0.01 %/°C). Deviating significantly affects TC performance and long-term stability.
Is the 1N4580A suitable for military applications?
Yes - the 1N4580A supports MIL-PRF-19500/452 qualification when ordered with appropriate prefixes and suffixes (e.g., JANTX1N4580A-1). Its DO-7 hermetic package, –65 °C to +175 °C rating, and ESD insensitivity per MIL-STD-750 make it suitable for defense and aerospace deployments.
How does the temperature coefficient of the 1N4580A compare to other devices in the 1N45xxA family?
The 1N4580A has a temperature coefficient of 0.01 %/°C - higher than 1N4584A (0.0005 %/°C) but identical to 1N4565A and 1N4570A. This value reflects a balance between TC performance and robustness at 4.0 mA bias, making the 1N4580A ideal for applications needing moderate stability with higher current drive capability.
What package type is used for the 1N4580A?
The 1N4580A uses the DO-7 (also designated DO-204AA) hermetically sealed glass axial-leaded package. It features tin-lead plated leads compliant with MIL-STD-750 Method 2026, cathode band marking, and a weight of 0.2 grams - optimized for through-hole mounting in high-reliability assemblies.
1N4580A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.4 V
- Tolerance:
- ±5%
- 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:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
1N4580A FAQ
1.How can I place an order for 1N4580A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4580A 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 1N4580A reliable?
The price and inventory of 1N4580A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4580A is usually 5 days.
3.What payment methods are accepted for 1N4580A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4580A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4580A?
1N4580A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4580A 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 1N4580A?
For technical support, including 1N4580A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4580A requirements.
6.How does Aetrix verify that 1N4580A is sourced from the original manufacturer or authorized distributors?
All 1N4580A 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 1N4580A meets industry standards.
7.What is the process for return or replacement of 1N4580A?
All 1N4580A units undergo pre-shipment inspection (PSI). If there is an issue with 1N4580A, 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 1N4580A part is unused and in its original packaging.
Return procedure for 1N4580A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4580A Tags
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