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Microchip Technology 1N4580
- Part No.:
- 1N4580
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AA, DO-7, Axial
- Datasheet:
-
1N4580.pdf
- Description:
- DIODE ZENER 6.4V 500MW DO7
- Quantity:
- Payment:
- Shipping:
Inventory:3,454
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Product details
Overview
1N4580 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 Zener test current, 0.01%/°C temperature coefficient, 25 Ω dynamic impedance, and ±5% nominal voltage tolerance. It delivers stable voltage reference performance across -65°C to +175°C for precision analog instrumentation.
For engineers reviewing the 1N4580 datasheet, 1N4580 pinout, 1N4580 application, or 1N4580 equivalent, this part supports high-stability voltage referencing where low TC drift, hermetic sealing, and military-grade reliability are required - especially in aerospace power supplies, calibration equipment, and sensor signal conditioning circuits.
Technical Context
The 1N4580 uses internal metallurgical bonding to achieve tight thermal coupling between complementary Zener and forward-biased junctions, enabling active temperature compensation. Its 0.01%/°C TC is achieved at 4.0 mA operating current over 0°C to +75°C, with voltage stability maintained below 30 mW dissipation.
This device operates with cathode-positive polarity and requires no external biasing circuitry. It complies with MIL-PRF-19500/452 when ordered with JAN/JANTX/JANTXV prefixes and "-1" suffix, and exhibits ESD immunity per MIL-STD-750 Method 1020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.4 V ±5% at IZT = 4.0 mA - defines nominal reference level for analog calibration circuits |
| Temperature Coefficient (TC) | 0.01%/°C over 0°C to +75°C - ensures ≤0.64 mV/°C drift in critical reference paths |
| Zener Impedance (ZZT) | 25 Ω at IZT = 4.0 mA - minimizes AC ripple sensitivity in low-noise references |
| Max Reverse Current (IR) | 2.0 µA at 3 V - guarantees low leakage in high-impedance bias networks |
| Power Dissipation | 500 mW @ TL = 25°C - supports robust operation with heatsinking; 30 mW max recommended for optimal TC stability |
| Operating Temperature | -65°C to +175°C - enables deployment in extended-range avionics and downhole electronics |
| Package | DO-7 (DO-204AA) glass axial-leaded - hermetically sealed, tin-lead plated leads, cathode band marked |
Pinout & Package
DO-7 (DO-204AA) glass axial-leaded package with hermetically sealed construction, tin-lead plated solderable leads per MIL-STD-750 Method 2026, and cathode band marking. Polarity: cathode band denotes positive terminal during reverse-bias operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference diode anode | Connected to circuit ground or lower-potential node in reverse-biased configuration |
| Cathode (banded end) | Reference diode cathode | Provides stable 6.4 V output relative to anode; must be held at higher potential than anode |
Key Features
| Feature | Design Value |
|---|---|
| Temperature-compensated Zener structure | Active cancellation of TC via dual-junction metallurgical bonding - achieves 0.01%/°C without external components |
| Hermetic glass DO-7 package | Long-term parameter stability and moisture resistance - qualified for space-qualified and high-reliability programs |
| MIL-PRF-19500/452 qualification path | Supports JAN/JANTX/JANTXV variants with "-1" suffix - meets screening and testing requirements for defense applications |
| Nonsensitive to ESD | Immunity per MIL-STD-750 Method 1020 - eliminates need for handling precautions in production environments |
Applications
| Aerospace Power Supply Reference | Calibration Equipment Voltage Standard |
|---|---|
Use Scenario: Provides primary voltage reference in DC-DC converter feedback loops aboard satellites and UAVs. IC Role / Device Role / Timing Role: Zener reference diode supplying stable 6.4 V to error amplifier inputs. Use Value: Maintains regulation accuracy within ±0.064 V over -65°C to +175°C due to 0.01%/°C TC and hermetic packaging. |
Use Scenario: Serves as traceable voltage standard in handheld multimeter calibration fixtures. IC Role / Device Role / Timing Role: Precision reference source for ADC/DAC offset trimming and gain calibration. Use Value: Enables <10 ppm/°C drift performance at 4.0 mA bias, supporting Class 0.1 instrument certification. |
| Industrial Sensor Signal Conditioning | Downhole Logging Instrumentation |
Use Scenario: Stabilizes excitation voltage for strain gauge bridges in factory-floor pressure transmitters. IC Role / Device Role / Timing Role: Low-drift reference for ratiometric bridge biasing and analog front-end scaling. Use Value: Reduces temperature-induced zero-shift errors by >90% compared to uncompensated Zeners at 4.0 mA. |
Use Scenario: Supplies reference voltage for analog telemetry circuits in oil/gas well logging tools. IC Role / Device Role / Timing Role: High-temperature-stable voltage reference in sealed, high-pressure probe housings. Use Value: Operates continuously at +175°C with <0.5% VZ shift over lifetime - validated per MIL-PRF-19500/452 screening. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4574A | Same 6.4 V nominal, but 0.0005%/°C TC at 1.0 mA IZT; 100 Ω ZZT | Better TC for ultra-stable lab-grade instruments; lower bias current reduces self-heating | Select when sub-0.1 ppm/°C drift is mandatory and 1.0 mA bias is acceptable |
| 1N4584A | Same 6.4 V nominal, 0.0005%/°C TC at 4.0 mA IZT; 25 Ω ZZT | Identical package and bias current, but superior TC for high-precision field-deployed systems | Choose when lowest possible TC is needed without changing layout or drive capability |
Compared with 1N4574A and 1N4584A, the 1N4580 offers the best balance of low dynamic impedance (25 Ω), moderate TC (0.01%/°C), and high bias current (4.0 mA), making it ideal for ruggedized industrial references where noise rejection and thermal robustness outweigh ultra-low TC requirements.
Availability
1N4580 is available at Aetrix Electronics and suitable for aerospace power supply reference, calibration equipment voltage standard, and industrial sensor signal conditioning requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 1N4580 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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N4580 belongs to Microsemi's Scottsdale Division legacy Zener reference diode family, engineered specifically for applications demanding hermetic sealing, wide-temperature operation, and MIL-spec qualification pathways.
FAQ
What is the Zener test current for the 1N4580?
The 1N4580 is specified at a Zener test current (IZT) of 4.0 mA. This current is used to measure its nominal 6.4 V Zener voltage and 0.01%/°C temperature coefficient. Operating at this current ensures optimal TC stability and low dynamic impedance of 25 Ω, as confirmed in the official Microsemi datasheet revision B.
Does the 1N4580 have military qualification options?
Yes, the 1N4580 can be ordered with military qualifications by adding JAN, JANTX, or JANTXV prefixes and the "-1" suffix (e.g., JANTX1N4580-1), meeting MIL-PRF-19500/452 requirements. These variants undergo additional screening for vibration, thermal shock, and long-term reliability - all documented in Microsemi's qualification reports for the 1N4565–1N4584A series.
What is the maximum operating temperature of the 1N4580?
The 1N4580 has a maximum operating temperature of +175°C and a minimum of -65°C. This full range is supported by its hermetically sealed DO-7 glass package and internal metallurgical bonding. The device maintains voltage stability within specification across this range, as verified in Microsemi's thermal characterization data on page 2 of the datasheet.
How does the 1N4580 achieve temperature compensation?
The 1N4580 achieves temperature compensation through internal metallurgical bonding of complementary Zener and forward-biased junctions. This physical integration enables active cancellation of intrinsic TC, resulting in a net 0.01%/°C coefficient at 4.0 mA. Unlike resistor-based compensation, this method requires no external components and is inherent to the die structure of the 1N4580.
Is the 1N4580 compatible with lead-free soldering processes?
The 1N4580 features tin-lead plated leads per MIL-STD-750 Method 2026 and is rated for soldering at 260°C for 10 seconds maximum. While not lead-free, its termination is compatible with standard SnPb reflow profiles. For RoHS-compliant alternatives, Microsemi offers DO-35 and DO-213AA variants - but the 1N4580 itself retains its original tin-lead finish as specified in the DO-7 mechanical drawing.
1N4580 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AA, DO-7, 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-7
1N4580 FAQ
1.How can I place an order for 1N4580 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4580 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 1N4580 reliable?
The price and inventory of 1N4580 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4580 is usually 5 days.
3.What payment methods are accepted for 1N4580?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4580 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4580?
1N4580 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4580 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 1N4580?
For technical support, including 1N4580 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4580 requirements.
6.How does Aetrix verify that 1N4580 is sourced from the original manufacturer or authorized distributors?
All 1N4580 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 1N4580 meets industry standards.
7.What is the process for return or replacement of 1N4580?
All 1N4580 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4580, 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 1N4580 part is unused and in its original packaging.
Return procedure for 1N4580:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4580 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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