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Microchip Technology JANTX1N4623-1/TR
- Part No.:
- JANTX1N4623-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4623-1/TR.pdf
- Description:
- DIODE ZENER 4.3V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,672
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Product details
Overview
JANTX1N4623-1/TR from Microsemi is a 500 mW, 4.3 V Zener voltage regulator diode in DO-35 glass axial-leaded package, qualified to JANTX reliability level per MIL-PRF-19500/435, with 1% Zener voltage tolerance, 1600 Ω dynamic impedance at 250 mA test current, and -0.050 %/°C temperature coefficient - used for precision voltage reference and regulation in military-grade power supply monitoring circuits.
For engineers reviewing the JANTX1N4623-1/TR datasheet, JANTX1N4623-1/TR pinout, JANTX1N4623-1/TR application, or JANTX1N4623-1/TR equivalent, key selection criteria include Zener voltage accuracy (±1%), low noise density (1 µV/√Hz), hermetic glass packaging, MIL-qualified thermal stability (-65 °C to +175 °C), and compatibility with through-hole PCB assembly requiring stable regulation under wide current and temperature variation.
Technical Context
This device operates as a reverse-biased Zener regulator with metallurgically bonded junction, delivering stable 4.3 V reference across 250 mA test current and up to 77 mA maximum Zener current. Its -0.050 %/°C temperature coefficient ensures minimal drift over industrial and military temperature ranges.
Designed for high-reliability applications, it features hermetically sealed DO-35 glass construction, non-ESD-sensitive behavior per MIL-STD-750 Method 1020, and inherent radiation hardness per Microsemi MicroNote 050 - supporting use in avionics, space-qualified subsystems, and hardened instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 4.3 V ±1% at 250 mA - enables precise reference generation with tight tolerance for calibration-critical circuits. |
| Power Dissipation | 500 mW at 25 °C - supports continuous regulation in compact through-hole designs without forced cooling. |
| Dynamic Impedance ZZT | 1600 Ω at IZT = 250 mA - defines output impedance in regulation region, critical for load transient response. |
| Temperature Coefficient αVZ | -0.050 %/°C - ensures predictable, low-drift voltage reference over -65 °C to +175 °C operating range. |
| Noise Density ND | 1 µV/√Hz - minimizes broadband noise injection into sensitive analog signal chains and reference nodes. |
| Max Reverse Current IR | 2.0 µA at VR = 2.0 V - confirms low leakage in pre-breakdown region, improving standby efficiency. |
| Junction Temp Range | -65 °C to +175 °C - validated for extreme-environment operation including aerospace and downhole electronics. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; operated with banded end positive relative to opposite end for Zener regulation. Hermetically sealed, tin-lead plated leads solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-bias reference node | Connected to system ground or lower-potential rail; establishes reference return path during Zener conduction. |
| Cathode (banded) | Zener regulation output | Supplies stable 4.3 V reference when reverse-biased; polarity marking prevents incorrect orientation in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Enables stable long-term Zener voltage performance and resistance to thermal cycling degradation in harsh environments. |
| MIL-PRF-19500/435 JANTX qualification | Validated screening and testing for military-grade reliability, including burn-in, life test, and lot acceptance per specification. |
| 1% Zener voltage tolerance | Reduces need for post-assembly trimming in precision reference circuits, lowering production cost and test time. |
| Low 1 µV/√Hz noise density | Preserves signal integrity in high-resolution ADC references, sensor excitation, and low-noise amplifier biasing. |
| Hermetic glass DO-35 package | Provides moisture and contaminant immunity essential for long-life deployment in sealed or high-humidity enclosures. |
Applications
| Avionics Power Monitoring | Spacecraft Onboard Instrumentation |
|---|---|
Use Scenario: Real-time monitoring of 28 V DC bus voltage in flight control computers using resistive divider and comparator circuitry. IC Role / Device Role / Timing Role: Provides stable 4.3 V reference for comparator threshold setting, ensuring accurate undervoltage/overvoltage detection. Use Value: JANTX1N4623-1/TR's -0.050 %/°C tempco and MIL-qualified stability maintain trip-point accuracy across -55 °C to +125 °C operational envelope. | Use Scenario: Biasing photodiode amplifiers in star tracker optical sensors aboard LEO satellites. IC Role / Device Role / Timing Role: Supplies ultra-low-noise 4.3 V reference for transimpedance amplifier feedback network. Use Value: JANTX1N4623-1/TR's 1 µV/√Hz noise density prevents signal-to-noise degradation in sub-picoamp photocurrent measurement. |
| Downhole Oilfield Logging Tools | Tactical Radio RF Power Amplifier Bias |
Use Scenario: Voltage regulation for microcontroller and sensor interface ICs in high-temperature (>150 °C) borehole telemetry modules. IC Role / Device Role / Timing Role: Maintains stable 4.3 V supply to ADC reference input and digital logic under thermal stress. Use Value: JANTX1N4623-1/TR's +175 °C max junction temperature and metallurgical bond ensure functional continuity where plastic-packaged Zeners fail. | Use Scenario: Setting quiescent current in Class AB RF power amplifier stages operating from 12–28 V rails. IC Role / Device Role / Timing Role: Generates fixed bias voltage for gate/base drive networks via resistive divider anchored to JANTX1N4623-1/TR. Use Value: JANTX1N4623-1/TR's 1600 Ω dynamic impedance and low tempco minimize bias shift across RF output power and temperature sweeps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4623US-1 | Same electrical specs but in DO-213AA surface-mount 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. |
| JANTXV1N4623-1 | Identical electrical and mechanical specs, but qualified to higher JANTXV reliability level with extended screening. | Used in mission-critical systems where failure risk must be minimized beyond JANTX requirements. | Select when program mandates JANTXV-level traceability and screening documentation. |
Compared with JANTX1N4623-1/TR, the 1N4623US-1 offers identical regulation performance in a smaller footprint but requires SMT infrastructure, while JANTXV1N4623-1 delivers enhanced reliability assurance at higher cost and longer lead time - choice depends on assembly method and program qualification tier.
Availability
JANTX1N4623-1/TR is available at Aetrix Electronics and suitable for avionics power monitoring, spacecraft instrumentation, and downhole oilfield logging tools requiring stable component supply with full MIL-spec traceability and long-lifecycle support.
Supply support for JANTX1N4623-1/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, radiation-hardened, and defense-grade analog and mixed-signal components.
The 1N46xx-1 series was designed specifically for military and aerospace voltage reference applications demanding hermetic sealing, wide temperature operation, and MIL-PRF-19500 qualification - not general-purpose commercial regulation.
FAQ
What is the Zener voltage tolerance of JANTX1N4623-1/TR?
JANTX1N4623-1/TR has a nominal Zener voltage of 4.3 V with ±1% tolerance, as indicated by the "D" suffix in its nomenclature per Microsemi's part numbering system. This tight tolerance is achieved through post-production screening and is maintained across the full -65 °C to +175 °C junction temperature range. The JANTX1N4623-1/TR datasheet specifies this value at 250 mA test current under thermal equilibrium conditions.
Is JANTX1N4623-1/TR RoHS compliant?
No, JANTX1N4623-1/TR is not RoHS compliant. Per Microsemi documentation, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade parts, not for JAN, JANTX, JANTXV, or JANS qualified devices. The JANTX1N4623-1/TR uses traditional tin-lead plating per MIL-STD-750 and retains lead content required for high-reliability solder joint integrity in military applications.
What is the maximum Zener current rating for JANTX1N4623-1/TR?
The maximum Zener current (IZM) for JANTX1N4623-1/TR is 77 mA, derived from its 500 mW power rating and 4.3 V Zener voltage (P = V × I). This value assumes operation at 25 °C ambient with proper thermal management; derating begins linearly at 50 °C lead temperature and reaches zero at 175 °C. The JANTX1N4623-1/TR datasheet confirms this limit in the Electrical Characteristics table.
Does JANTX1N4623-1/TR have radiation hardness certification?
Yes, JANTX1N4623-1/TR is inherently radiation hard, as documented in Microsemi MicroNote 050. It exhibits tolerance to total ionizing dose (TID) and single-event effects (SEE) due to its metallurgically bonded glass construction and junction design. While not individually tested per MIL-STD-883, its family-level radiation performance is validated for use in low-earth orbit and terrestrial high-radiation environments without additional shielding.
What does the "TR" suffix mean in JANTX1N4623-1/TR?
"TR" indicates tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. The JANTX1N4623-1/TR is supplied in reels containing specified quantities (typically 2,000 or 5,000 units), with carrier tape conforming to industry-standard pitch and pocket dimensions. This format supports high-volume manufacturing while preserving MIL-spec traceability and handling integrity for the JANTX1N4623-1/TR device.
JANTX1N4623-1/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):
- 4.3 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1600 Ohms
- Current - Reverse Leakage @ Vr:
- 4 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANTX1N4623-1/TR FAQ
1.How can I place an order for JANTX1N4623-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4623-1/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 JANTX1N4623-1/TR reliable?
The price and inventory of JANTX1N4623-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4623-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4623-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4623-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4623-1/TR?
JANTX1N4623-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4623-1/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 JANTX1N4623-1/TR?
For technical support, including JANTX1N4623-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4623-1/TR requirements.
6.How does Aetrix verify that JANTX1N4623-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4623-1/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 JANTX1N4623-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4623-1/TR?
All JANTX1N4623-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4623-1/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 JANTX1N4623-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N4623-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4623-1/TR Tags
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