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Microchip Technology JANTX1N4623C-1
- Part No.:
- JANTX1N4623C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4623C-1.pdf
- Description:
- DIODE ZENER 4.3V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,906
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Product details
Overview
JANTX1N4623C-1 from Microsemi is a 500 mW, 4.3 V Zener voltage regulator diode in DO-35 glass package, qualified to JANTX reliability level per MIL-PRF-19500/435, with 2% 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 JANTX1N4623C-1 datasheet, JANTX1N4623C-1 pinout, JANTX1N4623C-1 application, or JANTX1N4623C-1 equivalent, key selection criteria include Zener voltage accuracy (±2%), low noise density (1 µV/√Hz), hermetic DO-35 packaging, MIL-qualified thermal stability (-65 °C to +175 °C), and metallurgically bonded junction reliability.
Technical Context
This device operates as a reverse-biased Zener regulator with a nominal breakdown voltage of 4.3 V at 250 mA test current (IZT), exhibiting a negative temperature coefficient of -0.050 %/°C - enabling stable reference generation across wide temperature ranges in high-reliability analog subsystems.
Its metallurgically bonded glass construction ensures low leakage (IR ≤ 2.0 µA at VR = 3.6 V), minimal capacitance (typical < 2 pF), and radiation hardness per Microsemi MicroNote 050 - critical for aerospace, defense, and downhole instrumentation where parametric drift and single-event effects must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 4.3 V ±2% at IZT = 250 mA - defines precise regulation point for feedback loops and reference rails |
| Power Dissipation | 500 mW at TC = 25 °C, derated linearly to zero at 175 °C - sets maximum continuous thermal load on PCB layout |
| Dynamic Impedance ZZT | 1600 Ω at IZT = 250 mA - determines output voltage variation under load transients |
| Reverse Leakage IR | ≤2.0 µA at VR = 3.6 V - ensures low quiescent current in standby or sensing circuits |
| Noise Density ND | 1 µV/√Hz at IZT = 250 mA - supports low-noise analog references in precision ADC/DAC biasing |
| Temp Coefficient αVZ | -0.050 %/°C - enables predictable voltage drift compensation in temperature-critical designs |
| Junction Temp Range | -65 °C to +175 °C - qualifies for extended-range operation in avionics and space-qualified systems |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; operated with banded end positive relative to anode for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; establishes reference return path |
| Cathode | Zener regulation terminal / voltage reference output | Banded end; supplies regulated 4.3 V when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Guarantees screening, testing, and traceability for defense/aerospace deployment |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| Hermetically sealed glass package | Prevents moisture ingress and long-term parameter shift in humid or corrosive environments |
| Low noise density (1 µV/√Hz) | Enables use in high-resolution sensor excitation and reference buffering without added filtering |
| 2% Zener voltage tolerance | Reduces need for post-production trimming in calibrated instrumentation signal chains |
Applications
| Aerospace Power Monitoring | Downhole Instrumentation Reference |
|---|---|
Use Scenario: Real-time DC bus voltage supervision in satellite power distribution units. IC Role / Device Role / Timing Role: Zener voltage reference for comparator input in overvoltage/undervoltage fault detection circuitry. Use Value: Stable 4.3 V reference ensures consistent trip thresholds across -55 °C to +125 °C operational range. | Use Scenario: Precision biasing of piezoresistive pressure transducers in oil/gas well logging tools. IC Role / Device Role / Timing Role: Low-drift, low-noise voltage reference for Wheatstone bridge excitation. Use Value: 1 µV/√Hz noise density prevents signal-to-noise degradation in microvolt-level sensor outputs. |
| Military Radio RF Stage Biasing | Radiation-Hardened Sensor Interface |
Use Scenario: Fixed bias voltage generation for GaAs FET amplifiers in secure tactical radios. IC Role / Device Role / Timing Role: Zener-regulated gate bias supply ensuring amplifier linearity and gain stability. Use Value: -0.050 %/°C tempco minimizes gain drift over ambient temperature swings during field deployment. | Use Scenario: Reference voltage source in nuclear reactor control system analog input modules. IC Role / Device Role / Timing Role: Radiation-tolerant voltage reference for ADC front-end calibration. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or redundancy overhead. |
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 surface-mount DO-213AA package; no axial leads | Requires SMT reflow process; unsuitable for through-hole prototyping or high-vibration mechanical retention | Select for space-constrained PCBs where automated assembly and reduced board area are priorities |
| JANTXV1N4623C-1 | Identical electrical specs with enhanced JANTXV screening (including burn-in and life test) | Required for mission-critical flight hardware where failure probability must be <10⁻⁶ per 1000 hrs | Select when full MIL-PRF-19500/435 JANTXV compliance is mandated by system specification |
Compared with JANTX1N4623C-1, the 1N4623US-1 offers footprint reduction at the cost of mechanical robustness and hand-soldering compatibility, while JANTXV1N4623C-1 adds screening rigor for ultra-high-reliability deployments - neither is pin-compatible due to differing packages or qualification scope.
Availability
JANTX1N4623C-1 is available at Aetrix Electronics and suitable for aerospace power monitoring, downhole instrumentation reference, and military radio RF stage biasing requiring stable component supply with full MIL-PRF-19500 traceability and lot-level documentation.
Supply support for JANTX1N4623C-1 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 for precision voltage regulation in mil-spec environments - emphasizing thermal stability, radiation tolerance, and long-term parametric consistency under extreme conditions.
FAQ
What is the Zener voltage tolerance for JANTX1N4623C-1?
JANTX1N4623C-1 has a Zener voltage tolerance of ±2%, indicated by the "C" suffix in its nomenclature per MIL-PRF-19500/435. This means its measured VZ at IZT = 250 mA falls within 4.214 V to 4.386 V at 25 °C. The tighter tolerance reduces calibration effort in precision analog circuits compared to standard ±5% variants like JANTX1N4623-1.
Is JANTX1N4623C-1 RoHS compliant?
No, JANTX1N4623C-1 is not RoHS compliant. Per the datasheet, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade parts, not for JAN/JANTX/JANTXV/JANS qualified devices. JANTX1N4623C-1 uses traditional tin-lead plating per MIL-STD-750 method 2026 to ensure solderability and reliability under military thermal cycling requirements.
What is the maximum reverse leakage current for JANTX1N4623C-1?
The maximum reverse leakage current (IR) for JANTX1N4623C-1 is 2.0 µA at VR = 3.6 V, as specified in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This low leakage supports energy-efficient operation in battery-backed monitoring circuits and ensures minimal error contribution in high-impedance reference nodes.
Can JANTX1N4623C-1 be used in surface-mount designs?
No, JANTX1N4623C-1 is packaged in the axial-leaded DO-35 (DO-204AH) glass case and is not suitable for surface-mount assembly. For SMT equivalents, consider the 1N4623US-1 in DO-213AA package - which shares identical electrical specs but requires reflow soldering and lacks axial mechanical retention.
What is the thermal resistance junction-to-lead for JANTX1N4623C-1?
JANTX1N4623C-1 has a thermal resistance junction-to-lead (RθJL) of 250 °C/W when mounted with 3/8 inch (10 mm) lead length from body, per Maximum Ratings table on page 1 of T4-LDS-0245-2 Rev. 1. This value guides heatsinking decisions for sustained 500 mW operation and informs derating curves when lead temperature exceeds 50 °C.
JANTX1N4623C-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.3 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1600 Ohms
- Current - Reverse Leakage @ Vr:
- 2 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)
JANTX1N4623C-1 FAQ
1.How can I place an order for JANTX1N4623C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4623C-1 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 JANTX1N4623C-1 reliable?
The price and inventory of JANTX1N4623C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4623C-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4623C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4623C-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4623C-1?
JANTX1N4623C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4623C-1 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 JANTX1N4623C-1?
For technical support, including JANTX1N4623C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4623C-1 requirements.
6.How does Aetrix verify that JANTX1N4623C-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4623C-1 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 JANTX1N4623C-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4623C-1?
All JANTX1N4623C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4623C-1, 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 JANTX1N4623C-1 part is unused and in its original packaging.
Return procedure for JANTX1N4623C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4623C-1 Tags
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