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Microchip Technology JANS1N4619D-1/TR
- Part No.:
- JANS1N4619D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4619D-1/TR.pdf
- Description:
- DIODE ZENER 3V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,830
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Product details
Overview
JANS1N4619D-1/TR from Microsemi is a 3.0 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications. It delivers stable voltage regulation at 250 mA test current with 1600 Ω dynamic impedance and -0.075 %/°C temperature coefficient.
For engineers reviewing the JANS1N4619D-1/TR datasheet, JANS1N4619D-1/TR pinout, JANS1N4619D-1/TR application, or JANS1N4619D-1/TR equivalent, key selection criteria include Zener voltage tolerance (1%), radiation hardness, hermetic glass packaging, noise density (1 µV/√Hz), and MIL-qualified thermal derating behavior up to +175 °C junction temperature.
Technical Context
This device operates as a precision shunt voltage regulator in reverse-biased breakdown mode, with cathode band marking polarity. Its metallurgical bond construction ensures low leakage and stable long-term Zener voltage under thermal cycling and radiation exposure.
The JANS1N4619D-1/TR exhibits a nominal 3.0 V Zener voltage at 250 mA, with maximum reverse current of 0.4 µA at 2.0 V and dynamic impedance of 1600 Ω at IZT = 250 mA - characteristics validated across -65 °C to +175 °C operating range per MIL-PRF-19500/435.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.0 V ±1% at IZT = 250 mA - enables precise reference generation in analog power monitoring circuits. |
| Power Dissipation | 500 mW at TC = 25 °C, linearly derated to zero at 175 °C - supports operation in high-temperature avionics enclosures. |
| Dynamic Impedance ZZT | 1600 Ω max at IZT = 250 mA - defines output impedance stability under load transients in feedback loops. |
| Temp. Coefficient αVZ | -0.075 %/°C - ensures predictable voltage drift over wide ambient ranges in satellite power systems. |
| Noise Density ND | 1 µV/√Hz at IZT = 250 mA - critical for low-noise voltage references in precision ADC biasing. |
| Reverse Leakage IR | 0.4 µA max at VR = 2.0 V - guarantees minimal quiescent current draw in battery-backed circuits. |
| Junction Temp. Range | -65 °C to +175 °C - meets extended environmental requirements for space-grade electronics. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with tin-lead plating; cathode identified by single black band; weight ≈ 0.2 g; lead length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to system ground or low-impedance return path; establishes reference node for shunt regulation. |
| Cathode (banded end) | Zener breakdown terminal / regulated output node | Connected to supply rail requiring stabilization; reverse-biased to maintain 3.0 V reference under varying load currents. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated reliability for flight-critical systems including radiation hardness per MicroNote 050. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and mechanical vibration in launch environments. |
| 1% Zener voltage tolerance | Reduces need for post-assembly trimming in high-accuracy power supply feedback networks. |
| Hermetic glass DO-35 package | Prevents moisture ingress and parameter shift over decades in sealed military chassis. |
| Low noise density (1 µV/√Hz) | Enables use as reference source in 16-bit+ data acquisition front-ends without added filtering. |
Applications
| Avionics Power Monitoring | Satellite Bus Voltage Regulation |
|---|---|
Use Scenario: Real-time detection of 28 V DC bus deviations in UAV flight control systems. IC Role / Device Role / Timing Role: Shunt voltage reference in comparator-based overvoltage/undervoltage detector circuit. Use Value: 1% tolerance and -0.075 %/°C TC ensure trip-point accuracy remains within ±25 mV across -40 °C to +85 °C operational envelope. | Use Scenario: Stabilizing bias voltage for radiation-tolerant op-amps in LEO satellite telemetry modules. IC Role / Device Role / Timing Role: Precision 3.0 V reference source for analog sensor signal conditioning chain. Use Value: Inherent radiation hardness and 1 µV/√Hz noise support >14 ENOB performance in 1 MSPS SAR ADC interfaces. |
| Missile Guidance Reference | Nuclear Instrumentation Calibration |
Use Scenario: Providing stable excitation voltage to piezoresistive accelerometers during high-g launch events. IC Role / Device Role / Timing Role: Low-drift Zener reference in bridge excitation circuitry. Use Value: Metallurgical bond integrity prevents parametric shift under 20,000 g shock, maintaining <±0.5% reference error. | Use Scenario: Calibrating gamma-ray spectrometer front-end gain stages in reactor monitoring systems. IC Role / Device Role / Timing Role: Primary voltage standard in traceable calibration loop against NIST-certified sources. Use Value: JANS-level lot traceability and hermetic packaging ensure metrological stability over 10-year calibration intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4619D-1 | Same electrical specs but qualified only to JANTXV level; lower screening rigor than JANS. | Limited to non-flight hardware or ground-test equipment where full JANS radiation testing is not mandated. | Select when cost sensitivity outweighs requirement for full space-qualification screening. |
| 1N4619UR-1 | Surface-mount DO-213AA package; identical Zener parameters but no MIL qualification. | Used in commercial or industrial PCBs where automated assembly and smaller footprint are prioritized over hermeticity and radiation tolerance. | Choose for volume production where RoHS compliance and pick-and-place compatibility are essential. |
Compared with JANS1N4619D-1/TR, JANTXV1N4619D-1 offers reduced test coverage for cost-sensitive ground systems, while 1N4619UR-1 trades MIL qualification for SMT manufacturability - neither provides JANS-level radiation assurance or hermetic glass reliability.
Availability
JANS1N4619D-1/TR is available at Aetrix Electronics and suitable for avionics power monitoring, satellite bus voltage regulation, missile guidance reference, and nuclear instrumentation calibration requiring stable component supply under extended temperature and radiation exposure conditions.
Supply support for JANS1N4619D-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 Corporation (now part of Microchip Technology) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The 1N4614–1N4627 series was developed specifically to meet MIL-PRF-19500/435 requirements for hermetic, radiation-hardened Zener references in mission-critical systems.
FAQ
What is the Zener voltage tolerance of JANS1N4619D-1/TR?
JANS1N4619D-1/TR has a nominal Zener voltage of 3.0 V with ±1% tolerance at 250 mA test current, indicated by the "D" suffix in the part number per Microsemi's nomenclature. This tight tolerance eliminates need for external trimming in precision reference designs and is verified per MIL-PRF-19500/435 screening.
Is JANS1N4619D-1/TR radiation hardened?
Yes, JANS1N4619D-1/TR is inherently radiation hard as documented in Microsemi MicroNote 050, due to its metallurgically bonded structure and hermetic glass DO-35 package. It is qualified to JANS level per MIL-PRF-19500/435, which includes radiation testing protocols appropriate for space and nuclear environments.
What is the maximum operating temperature for JANS1N4619D-1/TR?
JANS1N4619D-1/TR has a junction and storage temperature range of -65 °C to +175 °C. Its power dissipation is linearly derated from 500 mW at 25 °C to zero at 175 °C, enabling reliable operation in high-temperature avionics bays and engine-mounted electronics.
Does JANS1N4619D-1/TR have RoHS compliance?
No, JANS1N4619D-1/TR is not RoHS compliant. The "e3" RoHS suffix applies only to commercial-grade versions (e.g., 1N4619D-1e3); JANS-level parts retain tin-lead plating per MIL-STD-750 method 2026 to ensure solderability and reliability in high-reliability assemblies.
What does the "TR" suffix mean in JANS1N4619D-1/TR?
"TR" indicates tape-and-reel packaging per EIA-296 standard, enabling automated placement in high-volume manufacturing. JANS1N4619D-1/TR is supplied in reels compatible with standard pick-and-place equipment, while retaining full JANS qualification and traceability for each unit on the reel.
JANS1N4619D-1/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):
- 3 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1.6 Ohms
- Current - Reverse Leakage @ Vr:
- 400 nA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4619D-1/TR FAQ
1.How can I place an order for JANS1N4619D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4619D-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 JANS1N4619D-1/TR reliable?
The price and inventory of JANS1N4619D-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 JANS1N4619D-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4619D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4619D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4619D-1/TR?
JANS1N4619D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4619D-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 JANS1N4619D-1/TR?
For technical support, including JANS1N4619D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4619D-1/TR requirements.
6.How does Aetrix verify that JANS1N4619D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4619D-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 JANS1N4619D-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4619D-1/TR?
All JANS1N4619D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4619D-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 JANS1N4619D-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4619D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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