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Microchip Technology JANTX1N4622C-1/TR
- Part No.:
- JANTX1N4622C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4622C-1/TR.pdf
- Description:
- DIODE ZENER 3.9V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,817
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Product details
Overview
JANTX1N4622C-1/TR from Microsemi is a 3.9 V, 2% tolerance, 500 mW axial-leaded Zener diode in DO-35 glass package, qualified to JANTX reliability level per MIL-PRF-19500/435. It delivers stable voltage regulation with 1650 Ω dynamic impedance at 250 mA test current and operates across –65 °C to +175 °C for aerospace and defense power-supply reference applications.
For engineers reviewing the JANTX1N4622C-1/TR datasheet, JANTX1N4622C-1/TR pinout, JANTX1N4622C-1/TR application, or JANTX1N4622C-1/TR equivalent, key selection criteria include Zener voltage tolerance (2%), thermal resistance (250 °C/W junction-to-lead), noise density (1 µV/√Hz), radiation hardness, and MIL-spec qualification level - all critical for high-reliability analog reference design.
Technical Context
This device functions as a precision shunt voltage regulator using metallurgically bonded construction to ensure long-term stability under thermal cycling and radiation exposure. Its Zener breakdown mechanism provides low-noise regulation with temperature coefficient of +0.060 %/°C and reverse leakage ≤2.5 µA at rated voltage.
The DO-35 package enables axial through-hole mounting with hermetic glass sealing, tin-lead plating, and cathode band polarity marking. It supports operation up to 175 °C junction temperature and requires linear derating above 50 °C lead temperature per MIL-PRF-19500/435 compliance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.9 V ±2% at 250 mA - ensures tight reference accuracy for feedback loops in regulated DC-DC converters. |
| Power Dissipation | 500 mW at 25 °C - supports stable operation in compact, convection-cooled military PCB layouts. |
| Dynamic Impedance ZZT | 1650 Ω at IZT = 250 mA - defines AC impedance in regulation region; impacts ripple rejection in low-current references. |
| Noise Density | 1 µV/√Hz - enables ultra-low-noise voltage reference in precision instrumentation and ADC biasing. |
| Temp Coefficient αVZ | +0.060 %/°C - quantifies drift over temperature; allows predictable compensation in wide-range environmental designs. |
| Reverse Leakage IR | ≤2.5 µA @ 3.5 V - guarantees minimal standby current draw in battery-backed or low-power monitoring circuits. |
| Junction Temp Range | –65 °C to +175 °C - validated for extreme-environment deployment in avionics, space-grade power systems, and downhole electronics. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed body, tin-lead plating, and cathode indicated by color band. Leads are 1.0–1.5 inch long; body diameter 0.056–0.090 inch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side in Zener mode; used for forward-bias testing or dual-mode circuitry. |
| Cathode (banded end) | Zener regulation terminal | Must be held positive relative to anode to maintain breakdown; serves as regulated output node in shunt configuration. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for aerospace and defense programs requiring traceable lot data and extended lifetime testing. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock, ensuring stable VZ over 10,000+ thermal cycles. |
| Low noise density (1 µV/√Hz) | Reduces broadband noise injection into sensitive analog signal chains - critical for high-resolution sensor front-ends. |
| Hermetic glass DO-35 package | Prevents moisture ingress and corrosion in humid, salt-spray, or vacuum environments without conformal coating. |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per MicroNote 050 - suitable for low-earth orbit and nuclear instrumentation. |
Applications
| Avionics Power Reference | Spacecraft Voltage Monitor |
|---|---|
Use Scenario: Regulating 3.9 V reference for analog-to-digital converter (ADC) biasing in flight control sensor modules. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable excitation voltage to precision op-amp buffers driving 16-bit SAR ADCs. Use Value: 2% tolerance and +0.060 %/°C tempco enable <±0.5% total error over –55 °C to +125 °C operational range. | Use Scenario: Providing primary voltage reference for telemetry system supervisory circuits on CubeSat platforms. IC Role / Device Role / Timing Role: Low-noise, radiation-hardened shunt regulator maintaining reference integrity during orbital radiation events. Use Value: 1 µV/√Hz noise density and inherent TID hardness eliminate need for redundant shielding or active compensation. |
| Defense Radar Bias Supply | Nuclear Instrumentation Reference |
Use Scenario: Stabilizing gate bias voltage for GaN RF power amplifier stages in ground-based radar transmitters. IC Role / Device Role / Timing Role: Precision shunt regulator compensating for supply ripple and thermal drift in high-efficiency RF bias networks. Use Value: 500 mW rating and 250 °C/W junction-to-lead thermal resistance support continuous operation at 100 °C ambient. | Use Scenario: Generating calibrated reference voltage for neutron detector pulse-height analysis circuitry. IC Role / Device Role / Timing Role: Primary voltage standard in analog front-end, operating continuously inside shielded reactor containment zones. Use Value: –65 °C to +175 °C rating and MIL-spec JANTX qualification ensure functional integrity during emergency cooldown transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4622US-1 | Same electrical specs but in surface-mount DO-213AA package; no axial leads. | Requires SMT reflow process; unsuitable for through-hole prototyping or legacy board repair. | Select when board space is constrained and automated assembly is available. |
| JAN1N4622C-1 | Identical electrical and mechanical specs; differs only in qualification level (JAN vs JANTX). | JAN lacks extended life-test data and lot traceability required for mission-critical flight hardware. | Choose JANTX1N4622C-1/TR for programs demanding full MIL-PRF-19500/435 compliance documentation. |
Compared with 1N4622US-1 and JAN1N4622C-1, JANTX1N4622C-1/TR uniquely combines axial-leaded DO-35 form factor, JANTX-level reliability evidence, and tape-and-reel packaging - making it optimal for high-assurance through-hole production and field replacement in deployed systems.
Availability
JANTX1N4622C-1/TR is available at Aetrix Electronics and suitable for avionics power reference, spacecraft voltage monitor, and defense radar bias supply applications requiring stable component supply, full MIL-spec traceability, and long-lifecycle support.
Supply support for JANTX1N4622C-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, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N46xx series was designed specifically for military-grade voltage reference applications where long-term stability, low noise, and environmental ruggedness outweigh cost sensitivity - targeting power supply feedback, sensor excitation, and calibration subsystems.
FAQ
What is the Zener voltage tolerance of JANTX1N4622C-1/TR?
JANTX1N4622C-1/TR has a nominal Zener voltage of 3.9 V with a tolerance of ±2%, denoted by the "C" suffix in its part number per MIL-PRF-19500/435 nomenclature. This tolerance is verified at 250 mA test current and 25 °C ambient, and remains stable over its full operating temperature range due to metallurgical bond construction.
Is JANTX1N4622C-1/TR RoHS compliant?
No, JANTX1N4622C-1/TR is not RoHS compliant. The "e3" RoHS designation applies only to commercial-grade versions (e.g., 1N4622C-1e3); JANTX-level parts retain tin-lead plating per MIL-STD-750 method 2026 to ensure solderability and reliability in high-reliability applications.
What does the "TR" suffix mean in JANTX1N4622C-1/TR?
The "TR" suffix indicates tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. JANTX1N4622C-1/TR is supplied in reels with standard orientation (cathode band facing consistent direction), and reel quantities are configurable per customer requirement through Aetrix Electronics.
How is the cathode identified on JANTX1N4622C-1/TR?
The cathode of JANTX1N4622C-1/TR is marked by a distinct color band on the glass DO-35 body. For proper Zener regulation, the banded end must be held at a higher potential than the anode - i.e., the cathode is the positive terminal in shunt regulator configuration.
What is the maximum Zener current IZM for JANTX1N4622C-1/TR?
The maximum Zener current IZM for JANTX1N4622C-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 lead temperature; derating applies linearly above 50 °C per MIL-PRF-19500/435 specifications.
JANTX1N4622C-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:
- ±2%
- 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)
JANTX1N4622C-1/TR FAQ
1.How can I place an order for JANTX1N4622C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4622C-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 JANTX1N4622C-1/TR reliable?
The price and inventory of JANTX1N4622C-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 JANTX1N4622C-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4622C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4622C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4622C-1/TR?
JANTX1N4622C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4622C-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 JANTX1N4622C-1/TR?
For technical support, including JANTX1N4622C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4622C-1/TR requirements.
6.How does Aetrix verify that JANTX1N4622C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4622C-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 JANTX1N4622C-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4622C-1/TR?
All JANTX1N4622C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4622C-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 JANTX1N4622C-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N4622C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4622C-1/TR Tags
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