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Microchip Technology 1N4580/TR
- Part No.:
- 1N4580/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AA, DO-7, Axial
- Datasheet:
-
1N4580/TR.pdf
- Description:
- DIODE ZENER 6.4V 500MW DO7
- Quantity:
- Payment:
- Shipping:
Inventory:9,595
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Product details
Overview
1N4580/TR 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 ±5% nominal voltage tolerance. It delivers stable voltage reference in precision analog instrumentation requiring minimal drift over temperature.
For engineers reviewing the 1N4580/TR datasheet, 1N4580/TR pinout, 1N4580/TR application, or 1N4580/TR equivalent, this part supports high-stability voltage referencing in aerospace-grade analog circuits, military power supply feedback loops, and calibration equipment where low TC and hermetic reliability are critical design requirements.
Technical Context
The 1N4580/TR uses internal metallurgical bonding to achieve zero-temperature-coefficient behavior near 6.4 V by balancing positive and negative TC components within the Zener junction. Its 4.0 mA Zener test current is optimized for <30 mW dissipation to maintain thermal stability without external heatsinking.
Designed per MIL-PRF-19500/452, it operates across –65°C to +175°C with hermetically sealed glass construction and tin-lead solderable leads. The cathode band denotes polarity, and operation requires reverse bias with banded end positive relative to the anode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.4 V ±5% at IZT = 4.0 mA - defines nominal reference point for closed-loop regulation and calibration accuracy |
| Temperature Coefficient (αVZ) | 0.01%/°C - enables ≤0.75 mV/°C drift over 0 to +75°C operating range, minimizing thermal error in precision references |
| Zener Impedance (ZZT) | 25 Ω at IZT = 4.0 mA - ensures low AC ripple rejection and stable DC output under varying load conditions |
| Max Reverse Current (IR) | 2.0 µA at 3 V - guarantees negligible leakage error in high-impedance reference divider networks |
| Power Dissipation | 500 mW @ TL = 25°C - supports short-term surge handling while maintaining <30 mW steady-state operation for optimal TC performance |
| Operating Temperature | –65°C to +175°C - enables deployment in extended-environment avionics, downhole tools, and engine control modules |
Pinout & Package
Package: DO-7 (DO-204AA), hermetically sealed glass axial-leaded case with tin-lead plated leads per MIL-STD-750 Method 2026; cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to circuit common; establishes reference potential for feedback or measurement |
| Cathode (banded end) | Reference output node | Provides stable 6.4 V reverse-biased output; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Zero-TC Zener architecture | Compensates intrinsic semiconductor TC using dual-junction metallurgical design to achieve ultra-low drift at 6.4 V |
| MIL-PRF-19500/452 qualification | Validated for high-reliability military applications including JANTXV-level screening when ordered with -1 suffix |
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter shift in harsh environments such as aerospace and oilfield electronics |
| Nonsensitive to ESD | Complies with MIL-STD-750 Method 1020 - eliminates need for on-board ESD protection in sensitive analog signal chains |
Applications
| Avionics Power Monitoring | Military Radar Bias Supply |
|---|---|
Use Scenario: Real-time monitoring of 28 V aircraft bus voltage via resistive divider feeding ADC input. IC Role / Device Role / Timing Role: Precision voltage reference for ADC full-scale calibration and fault threshold detection. Use Value: 0.01%/°C TC ensures <±1 LSB error over –55°C to +100°C operational range without software compensation. |
Use Scenario: Stable biasing of GaAs MMIC amplifiers in airborne radar front-end modules. IC Role / Device Role / Timing Role: Low-noise, low-drift reference for active bias control loop. Use Value: 25 Ω ZZT minimizes AC coupling into RF stages, preserving signal integrity and gain flatness. |
| Downhole Logging Calibration | Spacecraft Thermal Sensor Reference |
Use Scenario: Calibration source for platinum RTD signal conditioning in oil/gas well logging tools. IC Role / Device Role / Timing Role: Primary voltage standard for 4-wire resistance measurement bridge excitation. Use Value: Hermetic DO-7 package withstands 200°C ambient and 15 kpsi pressure without parameter degradation. |
Use Scenario: Reference for thermistor-based thermal management in satellite payload subsystems. IC Role / Device Role / Timing Role: Stable 6.4 V reference for analog-to-digital conversion of thermal sensor outputs. Use Value: –65°C to +175°C operating range supports cold-soak launch and orbital thermal cycling without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4574A/TR | Same DO-7 package, 6.4 V, but 0.0005%/°C TC and 1.0 mA IZT; ZZT = 100 Ω | Better TC for ultra-high-stability lab instruments; higher impedance limits use in low-noise RF bias | Select 1N4574A/TR only if sub-mV/°C drift is required and 100 Ω ZZT is acceptable in target circuit |
| 1N4584A/TR | Same DO-7 package, 6.4 V, 0.0005%/°C TC, 4.0 mA IZT, ZZT = 25 Ω - identical electrical specs except TC | Superior TC for mission-critical systems where thermal gradient margins are constrained | Choose 1N4584A/TR when 0.0005%/°C TC is mandatory; otherwise 1N4580/TR offers optimal cost/performance balance |
Compared with 1N4574A/TR and 1N4584A/TR, the 1N4580/TR provides the best trade-off between low-TC performance (0.01%/°C), low dynamic impedance (25 Ω), and 4.0 mA operating current-making it ideal for ruggedized industrial and defense systems where moderate TC suffices and low noise is essential.
Availability
1N4580/TR is available at Aetrix Electronics and suitable for avionics power monitoring, military radar bias supply, and downhole logging calibration requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 1N4580/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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N4580/TR belongs to Microsemi's legacy Scottsdale Division Zener reference diode family, engineered specifically for applications demanding hermetic reliability, wide-temperature operation, and MIL-spec qualification in safety-critical systems.
FAQ
What is the Zener test current for 1N4580/TR?
The 1N4580/TR is specified at a Zener test current (IZT) of 4.0 mA. This current level is selected to optimize voltage stability and temperature coefficient performance while keeping power dissipation below 30 mW. Operating the 1N4580/TR at its rated IZT ensures compliance with the published 6.4 V ±5% and 0.01%/°C specifications.
Does 1N4580/TR meet military specifications?
Yes, the base 1N4580/TR meets JEDEC registration and can be ordered with JAN, JANTX, or JANTXV prefixes plus the "-1" suffix (e.g., JANTX1N4580A-1) to fulfill MIL-PRF-19500/452 requirements. These qualified versions undergo additional screening for radiation hardness, thermal shock, and long-term reliability-making them suitable for flight-critical and defense electronics where 1N4580/TR is deployed.
What is the maximum operating temperature of 1N4580/TR?
The 1N4580/TR has a maximum operating temperature of +175°C and a minimum of –65°C. This extended range is enabled by its hermetically sealed DO-7 glass package and internal metallurgical bonding. Engineers specify 1N4580/TR in downhole tools, jet engine controllers, and space-qualified payloads where conventional plastic-packaged references would fail.
How does the temperature coefficient of 1N4580/TR compare to other parts in the 1N4565–1N4584 series?
The 1N4580/TR has a temperature coefficient of 0.01%/°C - higher than ultra-low-TC variants like 1N4584A/TR (0.0005%/°C) but lower than baseline parts like 1N4565 (0.01%/°C at 0.5 mA). Its 4.0 mA IZT allows better thermal stabilization than low-current variants, making 1N4580/TR a balanced choice for applications needing robustness without ultra-fine TC tuning.
Is the 1N4580/TR available in tape-and-reel packaging?
Yes, the "TR" suffix in 1N4580/TR explicitly denotes tape-and-reel packaging per EIA-296 standards. This format supports automated SMT placement when used with axial-to-SMT adapter carriers or manual insertion in through-hole production lines. The DO-7 package remains unchanged; only the packaging method differs from bulk or ammo-pack options.
1N4580/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AA, DO-7, Axial
- Packaging:
- Tape & Reel (TR)
- 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/TR FAQ
1.How can I place an order for 1N4580/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4580/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 1N4580/TR reliable?
The price and inventory of 1N4580/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4580/TR is usually 5 days.
3.What payment methods are accepted for 1N4580/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4580/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4580/TR?
1N4580/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4580/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 1N4580/TR?
For technical support, including 1N4580/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4580/TR requirements.
6.How does Aetrix verify that 1N4580/TR is sourced from the original manufacturer or authorized distributors?
All 1N4580/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 1N4580/TR meets industry standards.
7.What is the process for return or replacement of 1N4580/TR?
All 1N4580/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4580/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 1N4580/TR part is unused and in its original packaging.
Return procedure for 1N4580/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4580/TR Tags
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Diodes Incorporated
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