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Microchip Technology 1N4580A/TR
- Part No.:
- 1N4580A/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N4580A/TR.pdf
- Description:
- DIODE ZENER 6.4V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,731
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Product details
Overview
1N4580A/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 circuits operating from –65°C to +175°C.
For engineers reviewing the 1N4580A/TR datasheet, 1N4580A/TR pinout, 1N4580A/TR application, or 1N4580A/TR equivalent, key selection criteria include its low TC (0.01%/°C), hermetic DO-7 packaging, MIL-PRF-19500/452 qualification readiness, and suitability for high-reliability voltage reference designs requiring minimal drift over temperature and time.
Technical Context
This device belongs to Microsemi's zero-temperature-coefficient Zener family, where compensation is achieved via internal series-connected Zener and forward-biased junctions. Its 6.4 V nominal voltage aligns with the silicon bandgap voltage, enabling inherently low TC when biased at specified IZT.
The 1N4580A/TR is characterized at 4.0 mA test current, with dynamic impedance measured at 25 Ω (IZT = 4.0 mA, 0.75 mA ac rms superimposed on 7.5 mA dc), and reverse leakage limited to ≤2.0 µA at 3 V. It operates within –65°C to +175°C ambient and storage ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 6.4 V ±5% - Stable reference point near silicon bandgap; enables low-drift operation when biased at 4.0 mA |
| Zener Test Current (IZT) | 4.0 mA - Required bias current to achieve specified VZ and TC; power dissipation <30 mW at this point |
| Temperature Coefficient (αVZ) | 0.01%/°C - Low drift over 0°C to +75°C range; supports precision references in industrial and aerospace environments |
| Dynamic Impedance (ZZT) | 25 Ω @ IZT - Low AC impedance ensures minimal output voltage variation under load transients |
| Max Reverse Current (IR) | ≤2.0 µA @ 3 V - Confirms low leakage below knee voltage; critical for high-impedance reference node integrity |
| Operating Temperature Range | –65°C to +175°C - Full military-grade thermal envelope; validated for downhole, avionics, and engine-control applications |
| Package | DO-7 (DO-204AA) - Hermetically sealed glass axial package with tin-lead leads; compliant with MIL-STD-750 Method 2026 |
Pinout & Package
DO-7 (DO-204AA) hermetically sealed glass package with axial leads. Cathode identified by black band; anode is unbanded lead. Polarity requires banded end to be positive relative to unbanded end during operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reference output node | Connected to regulated voltage rail; must be held at higher potential than anode to maintain Zener conduction |
| Anode (unbanded end) | Return/reference ground node | Serves as circuit common; reverse-bias voltage applied between cathode and anode to establish reference |
Key Features
| Feature | Design Value |
|---|---|
| Temperature-compensated Zener structure | Combines Zener and forward-biased junctions to achieve 0.01%/°C TC over 0°C to +75°C |
| Hermetic DO-7 glass package | Enables long-term stability and reliability in harsh environments including high humidity and radiation exposure |
| MIL-PRF-19500/452 qualification path | Supports JAN/JANTX/JANTXV versions with "-1" suffix; meets screening and testing requirements for defense/aerospace |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020; eliminates need for external ESD protection in handling and assembly |
| Tape-and-reel option | "TR" suffix denotes EIA-296 compliant packaging for automated SMT placement compatibility (despite axial form factor) |
Applications
| High-Precision Instrumentation | Aerospace Power Monitoring |
|---|---|
Use Scenario: Front-end ADC reference and calibration circuitry in portable multimeters and data loggers. IC Role / Device Role / Timing Role: Primary voltage reference source establishing absolute measurement accuracy. Use Value: 0.01%/°C TC and 6.4 V nominal value minimize gain/offset drift across –20°C to +70°C operating range. |
Use Scenario: Voltage monitoring in satellite power distribution units exposed to thermal cycling in orbit. IC Role / Device Role / Timing Role: Reference element in isolated feedback loops of DC-DC converters and bus voltage supervisors. Use Value: Hermetic DO-7 package and –65°C to +175°C rating ensure parametric stability after 10,000+ thermal cycles. |
| Downhole Oilfield Sensors | Military Radio Transceivers |
Use Scenario: Biasing and reference generation in pressure/temperature sensor signal conditioning modules deployed at >150°C wellbore temperatures. IC Role / Device Role / Timing Role: High-temperature-stable reference for op-amp offset trimming and DAC reference rails. Use Value: Validated operation up to +175°C with <2.0 µA leakage at 3 V ensures signal integrity in ultra-low-power sensor nodes. |
Use Scenario: Frequency synthesizer PLL reference and RF front-end AGC threshold setting in handheld tactical radios. IC Role / Device Role / Timing Role: Precision DC reference for VCO tuning voltage and RSSI detector thresholds. Use Value: MIL-PRF-19500/452 qualification path (via JANTXV1N4580A-1) supports full DoD procurement traceability and lot acceptance testing. |
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 nominal, but 1.0 mA IZT and 0.0005%/°C TC - lower bias current, tighter TC | Better suited for ultra-low-power, ultra-stable references where bias current <1.5 mA is mandatory | Select 1N4574A/TR only if system-level power budget restricts reference current to ≤1.0 mA and TC <0.001%/°C is required |
| 1N4584A/TR | Same DO-7 package, 6.4 V nominal, 4.0 mA IZT, but 0.0005%/°C TC - identical bias, superior TC | Preferred for highest-accuracy references where TC is primary constraint and 4.0 mA bias is acceptable | Choose 1N4584A/TR when reference stability over wide temperature excursions (–55°C to +100°C) is prioritized over cost or availability |
Compared with 1N4574A/TR and 1N4584A/TR, the 1N4580A/TR offers a balanced trade-off: moderate TC (0.01%/°C) with higher available test current (4.0 mA), enabling better noise immunity and drive capability while maintaining compatibility with legacy 1N4580 designs and supply chains.
Availability
1N4580A/TR is available at Aetrix Electronics and suitable for high-reliability voltage reference applications in aerospace power systems, downhole instrumentation, and military radio transceivers requiring stable component supply across extended product lifecycles.
Supply support for 1N4580A/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 1N4565–1N4584A series was engineered to deliver precision, temperature-stable voltage references in hermetic packages for mission-critical systems where long-term drift and environmental resilience are non-negotiable.
FAQ
What is the Zener test current for 1N4580A/TR?
The 1N4580A/TR is specified at a Zener test current (IZT) of 4.0 mA. This current is required to achieve the nominal 6.4 V Zener voltage and the stated 0.01%/°C temperature coefficient. Operating significantly above or below this current will increase dynamic impedance and degrade TC performance. The 1N4580A/TR datasheet confirms that measurements are performed 15 seconds after applying the dc test current.
Does 1N4580A/TR have military qualification?
The base 1N4580A/TR is not itself qualified, but it is the commercial version of a MIL-PRF-19500/452-compliant family. Adding the JANTX or JANTXV prefix and "-1" suffix (e.g., JANTX1N4580A-1) yields the fully screened military-grade variant. The 1N4580A/TR shares identical DO-7 packaging, electrical specs, and hermetic construction, enabling direct qualification path.
What is the maximum operating temperature for 1N4580A/TR?
The 1N4580A/TR is rated for continuous operation from –65°C to +175°C. This full military-grade temperature range is validated per Microsemi's specification and applies to both ambient and storage conditions. The device maintains specified VZ, TC, and leakage performance across this range, making it suitable for downhole, engine bay, and space applications.
How does the "TR" suffix affect 1N4580A/TR packaging?
"TR" indicates tape-and-reel packaging per EIA-296 standard. Though the 1N4580A/TR is an axial-leaded DO-7 device, the TR format enables automated handling in high-volume assembly lines. The reels contain devices oriented consistently with cathode bands aligned, and the packaging preserves hermeticity and ESD robustness per MIL-STD-750 Method 1020.
Is 1N4580A/TR compatible with lead-free soldering processes?
The 1N4580A/TR 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 RoHS-compliant due to lead content, it is compatible with standard SnPb reflow profiles. For lead-free assembly, Microsemi recommends verifying thermal profile compatibility with the DO-7 glass body's thermal mass and coefficient of expansion.
1N4580A/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, 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-204AH (DO-35)
1N4580A/TR FAQ
1.How can I place an order for 1N4580A/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4580A/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 1N4580A/TR reliable?
The price and inventory of 1N4580A/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4580A/TR is usually 5 days.
3.What payment methods are accepted for 1N4580A/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4580A/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4580A/TR?
1N4580A/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4580A/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 1N4580A/TR?
For technical support, including 1N4580A/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4580A/TR requirements.
6.How does Aetrix verify that 1N4580A/TR is sourced from the original manufacturer or authorized distributors?
All 1N4580A/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 1N4580A/TR meets industry standards.
7.What is the process for return or replacement of 1N4580A/TR?
All 1N4580A/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4580A/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 1N4580A/TR part is unused and in its original packaging.
Return procedure for 1N4580A/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4580A/TR Tags
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