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Microchip Technology JANS1N4576AUR-1/TR
- Part No.:
- JANS1N4576AUR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
JANS1N4576AUR-1/TR.pdf
- Description:
- DIODE ZENER 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,157
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Product details
Overview
JANS1N4576AUR-1/TR from Microsemi is a hermetically sealed, temperature-compensated Zener reference diode in DO-213AA (MELF) glass package, rated for 8.2 V nominal zener voltage at 2.0 mA test current, with ±0.005 %/°C tempco and 50 Ω dynamic impedance, used in precision voltage references for aerospace-grade power supply monitoring and analog calibration circuits.
For engineers reviewing the JANS1N4576AUR-1/TR datasheet, JANS1N4576AUR-1/TR pinout, JANS1N4576AUR-1/TR application, or JANS1N4576AUR-1/TR equivalent, key selection criteria include its MIL-PRF-19500/452 Class S qualification, -55°C to +100°C operational stability per Note 1, low 24 mV max voltage drift over temperature, and surface-mount compatibility in leadless MELF format.
Technical Context
This device belongs to the CDLL4576A family of dual-plug, metallurgically bonded Zener diodes optimized for high-stability voltage referencing under extreme thermal cycling. Its compensation architecture achieves ±0.005 %/°C tempco by balancing opposing temperature coefficients across two junctions.
It operates within a strict 2.0 mA zener test current range, delivering 8.2 V ±1% tolerance at 25°C, with maximum 24 mV voltage change over -55°C to +100°C - verified per JEDEC Std 5 - and maintains ≤50 Ω dynamic impedance up to 4 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.2 V ±1% at IZT = 2.0 mA - ensures tight initial accuracy for calibration-critical biasing |
| Tempco (αVZ) | ±0.005 %/°C - enables sub-24 mV total drift over full -55°C to +100°C military range |
| Zener Impedance (ZZT) | ≤50 Ω at 2.0 mA - minimizes output voltage variation under load transients |
| Max Voltage Drift | 24 mV over -55°C to +100°C - meets MIL-PRF-19500/452 stability requirements |
| Power Dissipation | 500 mW @ +50°C, derated 4 mW/°C above - supports operation in high-ambient avionics enclosures |
| Reverse Leakage | 2 µA @ 3 V, 25°C - preserves low-error bias networks in high-impedance reference legs |
Pinout & Package
Package: DO-213AA (MELF, SOD-80, LL34), hermetically sealed glass, axial leadless construction, tin/lead lead finish. Cathode identified by single black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or negative rail; defines cathode-relative reference potential |
| Cathode | Positive reference output | Banded end; supplies stable 8.2 V when reverse-biased at 2.0 mA; polarity must be observed |
Key Features
| Feature | Design Value |
|---|---|
| Temperature Compensation | Dual-plug metallurgical construction achieves ±0.005 %/°C tempco - critical for unregulated environments |
| MIL-PRF-19500/452 Class S Qualification | Fully screened to JANS level with lot traceability, burn-in, and radiation hardness assurance |
| Hermetic Glass Encapsulation | DO-213AA package prevents moisture ingress and long-term parameter drift in harsh atmospheres |
| Low-Current Operation | Optimized for 2.0 mA test current - enables use in ultra-low-power reference designs without external amplification |
Applications
| Avionics Power Monitoring | Satellite ADC Reference |
|---|---|
Use Scenario: Real-time regulation feedback in DC-DC converters powering flight control computers. IC Role / Device Role / Timing Role: Precision voltage reference for error amplifier input in closed-loop regulation. Use Value: Sub-24 mV drift over -55°C to +100°C ensures consistent loop gain and avoids trim recalibration across mission profiles. |
Use Scenario: Biasing the reference input of 16-bit SAR ADCs in LEO satellite telemetry systems. IC Role / Device Role / Timing Role: Stable analog reference source enabling <1 LSB INL error under thermal vacuum conditions. Use Value: ±0.005 %/°C tempco and hermetic packaging maintain reference integrity during orbital thermal cycling. |
| Strategic Missile Guidance Sensors | Nuclear Plant Control Loop Calibration |
Use Scenario: Zero-point calibration of MEMS accelerometers in inertial measurement units. IC Role / Device Role / Timing Role: Primary voltage standard for sensor offset nulling circuitry. Use Value: JANS-level screening and 2 µA leakage ensure long-term calibration stability in sealed guidance modules. |
Use Scenario: Periodic field calibration of reactor coolant pressure transmitters using portable test sets. IC Role / Device Role / Timing Role: Portable, battery-operated reference standard traceable to NIST via factory calibration data. Use Value: 8.2 V ±1% initial tolerance and ≤50 Ω ZZT enable accurate millivolt-level bridge excitation without loading error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4576AUR-1 | Same electrical specs but Class V screening (lower reliability screening than JANS); no neutron irradiation testing | Approved for non-safety-critical flight hardware where full JANS qualification is not mandated | Select when cost and lead time are constrained but MIL-PRF-19500/452 compliance remains required |
| CDLL4576A | Commercial-grade version; same 8.2 V / ±0.005 %/°C / 50 Ω specs but no MIL screening or hermeticity guarantee | Intended for lab-grade instrumentation or non-mission-critical industrial controls | Use only in benign environments with full thermal derating and no radiation exposure requirements |
Compared with JANS1N4576AUR-1/TR, JANTXV1N4576AUR-1 offers faster availability and lower cost for non-safety-critical aerospace use, while CDLL4576A provides identical baseline performance without military screening - making both viable alternatives depending on qualification depth and environmental severity.
Availability
JANS1N4576AUR-1/TR is available at Aetrix Electronics and suitable for avionics power monitoring, satellite ADC reference, strategic missile guidance sensors, and nuclear plant control loop calibration requiring stable component supply across extended temperature and radiation-exposed environments.
Supply support for JANS1N4576AUR-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, radiation-hardened, and aerospace-grade components.
The JANS1N4576AUR-1/TR belongs to Microsemi's CDLL45xxA series of temperature-compensated Zener references, designed specifically for precision voltage stabilization in defense, space, and nuclear infrastructure systems where long-term parametric stability is non-negotiable.
FAQ
What is the zener voltage tolerance and test condition for JANS1N4576AUR-1/TR?
JANS1N4576AUR-1/TR has a nominal zener voltage of 8.2 V with ±1% tolerance, measured at a test current of 2.0 mA and ambient temperature of 25°C. This tolerance is guaranteed under MIL-PRF-19500/452 Class S screening and applies to all units in the qualified lot.
Is JANS1N4576AUR-1/TR compatible with reflow soldering processes?
JANS1N4576AUR-1/TR uses a hermetically sealed DO-213AA glass package rated for manual and wave soldering per MIL-STD-202 Method 210. Reflow is not recommended due to thermal shock risk to the glass-metal seal; hand soldering at ≤350°C for <3 seconds per lead is the approved attachment method.
Does JANS1N4576AUR-1/TR require external current limiting?
Yes - JANS1N4576AUR-1/TR must be operated with a series current-limiting resistor to maintain zener current within 0.5–4.0 mA. At 2.0 mA nominal, the resistor value is calculated as (VIN − 8.2 V)/2.0 mA; exceeding 4 mA risks exceeding 500 mW dissipation at elevated temperatures.
What does the "TR" suffix indicate in JANS1N4576AUR-1/TR?
The "TR" suffix in JANS1N4576AUR-1/TR denotes tape-and-reel packaging per EIA-481 standards, with 1,000 units per reel. It confirms factory-verified compliance with MIL-PRF-19500/452 mechanical handling requirements and includes full lot traceability documentation.
How is the temperature coefficient of JANS1N4576AUR-1/TR verified across its operating range?
JANS1N4576AUR-1/TR's ±0.005 %/°C tempco is verified per JEDEC Standard No. 5: the maximum observed voltage change between -55°C and +100°C is ≤24 mV - measured continuously across the full range, not extrapolated - and reported in the certified test data sheet for each lot.
JANS1N4576AUR-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):
- 50 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 3 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/452
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
JANS1N4576AUR-1/TR FAQ
1.How can I place an order for JANS1N4576AUR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4576AUR-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 JANS1N4576AUR-1/TR reliable?
The price and inventory of JANS1N4576AUR-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 JANS1N4576AUR-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4576AUR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4576AUR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4576AUR-1/TR?
JANS1N4576AUR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4576AUR-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 JANS1N4576AUR-1/TR?
For technical support, including JANS1N4576AUR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4576AUR-1/TR requirements.
6.How does Aetrix verify that JANS1N4576AUR-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4576AUR-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 JANS1N4576AUR-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4576AUR-1/TR?
All JANS1N4576AUR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4576AUR-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 JANS1N4576AUR-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4576AUR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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