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Microchip Technology JANTX1N4622D-1/TR
- Part No.:
- JANTX1N4622D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4622D-1/TR.pdf
- Description:
- DIODE ZENER 3.9V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,645
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Product details
Overview
JANTX1N4622D-1/TR from Microsemi is a 1% tolerance, 3.9 V, 500 mW axial-leaded Zener diode in DO-35 (DO-204AH) glass package, metallurgically bonded for high-reliability voltage regulation in military and aerospace power supply reference circuits.
For engineers reviewing the JANTX1N4622D-1/TR datasheet, JANTX1N4622D-1/TR pinout, JANTX1N4622D-1/TR application, or JANTX1N4622D-1/TR equivalent, key selection criteria include Zener voltage tolerance (±1%), dynamic impedance (1650 Ω @ 250 mA), noise density (1 µV/√Hz), temperature coefficient (–0.060 %/°C), and MIL-PRF-19500/435 JANTX qualification.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 3.9 V at 250 mA test current, exhibiting low noise density (1 µV/√Hz) and a negative temperature coefficient (–0.060 %/°C), enabling stable reference generation across –65 °C to +175 °C junction temperature range.
Its metallurgical bond construction ensures hermetic sealing and radiation hardness per Microsemi MicroNote 050, while the DO-35 package supports axial-leaded through-hole mounting with cathode band polarity marking and tin-lead plating compliant with MIL-STD-750 method 2026.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.9 V ±1% at 250 mA - enables precise low-voltage reference in analog monitoring and biasing circuits. |
| Power Dissipation | 500 mW at 25 °C, derated linearly to zero at 175 °C - supports continuous operation in high-temp avionics environments. |
| Dynamic Impedance ZZT | 1650 Ω @ 250 mA - defines regulation stiffness under load transients in feedback references. |
| Noise Density | 1 µV/√Hz - critical for low-noise sensor excitation and precision ADC reference buffers. |
| Temp Coefficient αVZ | –0.060 %/°C - allows predictable drift compensation in wide-temperature-range instrumentation. |
| Reverse Leakage IR | 2.5 µA @ 3.5 V - ensures minimal quiescent current draw in battery-backed systems. |
| Junction Temp Range | –65 °C to +175 °C - qualified for missile guidance, satellite power, and downhole drilling electronics. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package: hermetically sealed, 0.2 g mass, 1.0–1.5 inch lead length, cathode indicated by band; leads are tin-lead plated and solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system GND or common return; establishes Zener breakdown polarity when cathode is biased positive. |
| Cathode | Regulated output node | Banded end; connected to regulated voltage rail; sinks current to maintain 3.9 V across load under varying conditions. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for defense/aerospace programs requiring lot traceability, screening, and burn-in. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock in flight-critical systems. |
| 1% Zener voltage tolerance | Reduces need for post-assembly trimming in high-accuracy voltage references for telemetry and control. |
| Low noise density (1 µV/√Hz) | Supports clean DC biasing of op-amps and ADCs in radar receiver front-ends and signal conditioning stages. |
| Radiation hardness | Inherent tolerance to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for LEO satellite power supervisors. |
Applications
| Avionics Power Reference | Satellite Telemetry Biasing |
|---|---|
Use Scenario: Providing stable 3.9 V reference for analog-to-digital converters in flight control computers. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing precision DC bias point for sensor signal chains. Use Value: ±1% tolerance and –0.060 %/°C tempco ensure <±10 mV drift over –55 °C to +125 °C operational range. | Use Scenario: Biasing photodiode amplifiers in optical telemetry receivers aboard CubeSats. IC Role / Device Role / Timing Role: Low-noise Zener reference supplying clean DC to transimpedance amplifier stages. Use Value: 1 µV/√Hz noise density prevents degradation of SNR in sub-picoamp photocurrent measurements. |
| Military Radio RF Stage Bias | Downhole Drilling Sensor Excitation |
Use Scenario: Setting gate bias voltage for GaAs FETs in secure HF/VHF transceiver power amplifiers. IC Role / Device Role / Timing Role: Temperature-stable shunt regulator maintaining consistent FET operating point across ambient extremes. Use Value: Metallurgical bond and –65 °C to +175 °C rating prevent parameter shift during rapid thermal transients in field-deployed radios. | Use Scenario: Supplying excitation voltage to piezoresistive pressure sensors in oil/gas well logging tools. IC Role / Device Role / Timing Role: High-reliability voltage reference operating continuously at 150 °C downhole temperatures. Use Value: JANTX qualification and linear derating to zero at 175 °C enable uninterrupted operation without thermal shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4622D-1 | Higher screening level (JANTXV vs. JANTX); tighter parametric limits on ZZT and αVZ per MIL-PRF-19500/435. | Required for space-grade or mission-critical subsystems where extended life testing and enhanced lot acceptance are mandated. | Select when full JANTXV qualification, including additional environmental stress screening, is specified in the system requirements. |
| 1N4622US-1 | Same electrical specs but in DO-213AA surface-mount package; no axial leads; RoHS-compliant matte-tin plating. | Suitable for automated SMT assembly in compact, high-density PCBs where through-hole mounting is impractical. | Choose for modern avionics modules using reflow-soldered layouts and requiring reduced board real estate. |
Compared with JANTX1N4622D-1/TR, JANTXV1N4622D-1 offers higher reliability assurance for long-duration missions, while 1N4622US-1 enables miniaturized SMT integration-neither is pin-compatible due to differing packages and lead forms.
Availability
JANTX1N4622D-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite telemetry biasing, and military radio RF stage bias applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for JANTX1N4622D-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) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal components for aerospace, defense, and industrial markets.
The 1N46xx series was designed specifically to meet MIL-PRF-19500/435 requirements for ruggedized, low-noise Zener regulation in mission-critical power and sensing subsystems.
FAQ
What is the Zener voltage tolerance of JANTX1N4622D-1/TR?
JANTX1N4622D-1/TR has a Zener voltage tolerance of ±1%, denoted by the "D" suffix in its nomenclature. This tight tolerance ensures highly accurate voltage regulation at 3.9 V under nominal test conditions (250 mA, 25 °C), making it suitable for precision reference applications in defense electronics where calibration stability is essential. The JANTX1N4622D-1/TR achieves this via rigorous screening per MIL-PRF-19500/435.
Is JANTX1N4622D-1/TR qualified for high-reliability applications?
Yes, JANTX1N4622D-1/TR is fully qualified to MIL-PRF-19500/435 at the JANTX level, including environmental screening, lot traceability, and burn-in testing. It is rated for operation from –65 °C to +175 °C and features metallurgical bonding for enhanced mechanical and thermal robustness-key requirements for avionics, missile systems, and satellite subsystems where failure is not an option. JANTX1N4622D-1/TR meets these standards out-of-the-box.
What is the maximum Zener current IZM for JANTX1N4622D-1/TR?
The maximum Zener current IZM for JANTX1N4622D-1/TR is 80.0 mA, calculated from its 500 mW power rating and 3.9 V nominal Zener voltage (IZM = PM(AV)/VZ). This value assumes operation at 25 °C; current must be reduced linearly above 50 °C ambient per the derating curve in the datasheet. JANTX1N4622D-1/TR maintains regulation integrity up to this limit when properly heatsinked or mounted per FR4 layout guidelines.
Does JANTX1N4622D-1/TR have low noise performance?
Yes, JANTX1N4622D-1/TR delivers ultra-low noise density of 1 µV/√Hz at 250 mA test current, verified per Microsemi's standard measurement circuit (1 kHz–3 kHz bandpass). This performance is critical for biasing low-noise amplifiers and precision ADC references in radar and telemetry systems. The low noise stems from optimized metallurgical bonding and controlled junction geometry-core attributes of the JANTX1N4622D-1/TR design.
What package type does JANTX1N4622D-1/TR use?
JANTX1N4622D-1/TR uses the DO-35 (DO-204AH) axial-leaded glass package: hermetically sealed, 0.2 g mass, with cathode indicated by a visible band and tin-lead-plated leads compliant with MIL-STD-750 method 2026. The "TR" suffix confirms tape-and-reel packaging per EIA-296 for automated insertion. This package supports reliable through-hole mounting in high-vibration military platforms where mechanical integrity is non-negotiable for JANTX1N4622D-1/TR deployment.
JANTX1N4622D-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):
- 3.9 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1650 Ohms
- Current - Reverse Leakage @ Vr:
- 2.5 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANTX1N4622D-1/TR FAQ
1.How can I place an order for JANTX1N4622D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4622D-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 JANTX1N4622D-1/TR reliable?
The price and inventory of JANTX1N4622D-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 JANTX1N4622D-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4622D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4622D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4622D-1/TR?
JANTX1N4622D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4622D-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 JANTX1N4622D-1/TR?
For technical support, including JANTX1N4622D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4622D-1/TR requirements.
6.How does Aetrix verify that JANTX1N4622D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4622D-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 JANTX1N4622D-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4622D-1/TR?
All JANTX1N4622D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4622D-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 JANTX1N4622D-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N4622D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4622D-1/TR Tags
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