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Microchip Technology JANTXV1N4112D-1
- Part No.:
- JANTXV1N4112D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4112D-1.pdf
- Description:
- DIODE ZENER 18V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,340
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Product details
Overview
JANTXV1N4112D-1 from Microsemi is a 500 mW, 18.0 V ±1% tolerance metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded package, qualified to MIL-PRF-19500/435 JANTXV level for high-reliability military and aerospace voltage regulation applications.
For engineers reviewing the JANTXV1N4112D-1 datasheet, JANTXV1N4112D-1 pinout, JANTXV1N4112D-1 application, or JANTXV1N4112D-1 equivalent, key selection criteria include its 18.0 V nominal Zener voltage at 250 mA test current, 100 Ω dynamic impedance, 0.05 µA maximum reverse leakage at 14.4 V, +0.090 %/°C temperature coefficient, and hermetically sealed DO-35 package rated for -65 °C to +175 °C operation.
Technical Context
This device operates as a precision shunt voltage regulator with a sharp breakdown knee at IZK = 250 mA, leveraging internal metallurgical bonding to ensure stable Zener voltage under thermal stress and radiation exposure. Its low noise density (1 µV/√Hz typical at 18 V) and minimal capacitance support low-noise analog reference and timing circuitry.
The JANTXV1N4112D-1 exhibits linear power derating from 500 mW at 25 °C ambient to zero at 175 °C, with junction-to-lead thermal resistance of 250 °C/W when mounted with 10 mm lead length. It is polarity-marked with cathode band and requires banded end to be positive for Zener regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 18.0 V ±1% at 250 mA - precise reference for analog circuits requiring tight voltage stability |
| Power Dissipation | 500 mW @ 25 °C - supports continuous regulation in compact, unheatsinked designs |
| Dynamic Impedance ZZT | 100 Ω @ 250 mA - ensures minimal output voltage variation under load current changes |
| Reverse Leakage IR | 0.05 µA @ 14.4 V - enables ultra-low standby current in battery-backed systems |
| Temp. Coefficient αVZ | +0.090 %/°C - predictable voltage drift over wide temperature range (-65 to +175 °C) |
| Noise Density ND | 1 µV/√Hz @ 250 mA - suitable for low-noise reference applications such as precision ADCs |
| Junction Temp. Range | -65 °C to +175 °C - certified for extreme-environment deployment in avionics and space systems |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction; cathode indicated by single black band; leads are tin-lead or RoHS-compliant matte-tin plated per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to system ground or lower-potential rail during Zener operation |
| Cathode (banded end) | Regulated output node | Provides stable 18.0 V output when biased positively relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Guarantees screening, testing, and traceability for mission-critical defense programs |
| Metallurgical bond construction | Prevents delamination under thermal cycling and enhances long-term parameter stability |
| 1% Zener voltage tolerance | Reduces need for post-production trimming in precision reference designs |
| Hermetic glass encapsulation | Eliminates moisture ingress and ensures reliability in high-humidity or vacuum environments |
| Radiation hardness | Inherently resistant to total ionizing dose (TID), per Microsemi MicroNote 050 |
Applications
| Avionics Power Reference | Satellite Sensor Biasing |
|---|---|
Use Scenario: Providing stable 18.0 V reference for analog front-end amplifiers in flight control computers. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing precision bias point for op-amps and ADC drivers. Use Value: Maintains <±0.1% output deviation across -55 °C to +125 °C operating range due to +0.090 %/°C TC and JANTXV-level screening. | Use Scenario: Supplying regulated bias voltage to radiation-hardened CMOS image sensors aboard LEO satellites. IC Role / Device Role / Timing Role: Low-noise Zener reference source for pixel array bias rails. Use Value: Delivers 1 µV/√Hz noise density and inherent TID hardness, eliminating need for supplemental shielding or redundancy. |
| Missile Guidance Signal Conditioning | Nuclear Instrumentation Calibration |
Use Scenario: Stabilizing excitation voltage for piezoresistive accelerometers in tactical missile guidance sections. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining constant sensor bridge excitation under vibration and thermal shock. Use Value: Survives 100,000 g mechanical shock and retains 18.0 V ±1% regulation after MIL-STD-750 Method 2026 solderability testing. | Use Scenario: Serving as primary voltage standard in portable gamma spectroscopy calibrators used in nuclear facilities. IC Role / Device Role / Timing Role: Primary Zener reference in metrology-grade voltage divider networks. Use Value: Traceable calibration path enabled by JANTXV lot traceability and 0.05 µA IR ensuring negligible loading error in high-impedance dividers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4112US-1 | Same 18.0 V ±1% spec but in DO-213AA surface-mount package; no axial leads | Requires PCB re-layout for SMT assembly; unsuitable for through-hole prototyping or wire-wrap | Select when board space is constrained and automated SMT placement is available |
| JANS1N4112D-1 | Identical electrical specs but qualified to JANS (highest MIL-PRF-19500 level); includes additional radiation testing and extended lot traceability | Required for spaceflight and strategic nuclear systems where JANS certification is mandated | Select only when JANS-level documentation, screening, and radiation assurance are contractually required |
Compared with JANTXV1N4112D-1, the 1N4112US-1 offers identical regulation performance in a smaller footprint but eliminates field-serviceable axial mounting, while JANS1N4112D-1 adds cost and lead time for certifications unnecessary in non-space JANTXV applications.
Availability
JANTXV1N4112D-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite sensor biasing, missile guidance signal conditioning, and nuclear instrumentation calibration requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTXV1N4112D-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, radiation-hardened, and aerospace-grade components.
The JANTXV1N4112D-1 belongs to Microsemi's legacy 1N4099–1N4135 series of mil-qualified Zener diodes, designed specifically for precision voltage regulation in defense, space, and critical infrastructure systems where long-term stability and environmental survivability are mandatory.
FAQ
What is the Zener voltage tolerance of JANTXV1N4112D-1?
JANTXV1N4112D-1 has a nominal Zener voltage of 18.0 V with ±1% tolerance, as indicated by the "D" suffix in its part number per Microsemi's nomenclature. This tolerance is verified at 250 mA test current and 25 °C ambient, and applies across the full qualified temperature range of -65 °C to +175 °C under MIL-PRF-19500/435 JANTXV screening.
Is JANTXV1N4112D-1 RoHS compliant?
No, JANTXV1N4112D-1 is not RoHS compliant. Per Microsemi documentation, RoHS-compliant versions (suffix "e3") are available only on commercial-grade parts; JANTXV-level devices retain tin-lead plating to meet MIL-STD-750 solderability requirements and maintain legacy compatibility for defense programs.
What is the maximum reverse leakage current for JANTXV1N4112D-1?
JANTXV1N4112D-1 has a maximum reverse leakage current (IR) of 0.05 µA at VR = 14.4 V (80% of nominal VZ), measured at 25 °C. This ultra-low leakage supports high-impedance reference applications and minimizes power loss in battery-operated systems.
Can JANTXV1N4112D-1 be used in surface-mount designs?
No, JANTXV1N4112D-1 uses a DO-35 axial-leaded glass package and is not compatible with surface-mount assembly. For SMT equivalents, consider Microsemi's 1N4112US-1 in DO-213AA package - same electrical specs but different mechanical form factor and qualification level.
What is the thermal resistance specification for JANTXV1N4112D-1?
JANTXV1N4112D-1 has a junction-to-lead thermal resistance (RθJL) of 250 °C/W when measured with 10 mm lead length from body, per MIL-PRF-19500/435 test conditions. Its junction-to-ambient resistance is 300 °C/W on FR4 board with specified copper pad geometry, enabling accurate thermal design in conduction-cooled enclosures.
JANTXV1N4112D-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):
- 18 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 13.7 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)
JANTXV1N4112D-1 FAQ
1.How can I place an order for JANTXV1N4112D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4112D-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 JANTXV1N4112D-1 reliable?
The price and inventory of JANTXV1N4112D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4112D-1 is usually 5 days.
3.What payment methods are accepted for JANTXV1N4112D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4112D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4112D-1?
JANTXV1N4112D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4112D-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 JANTXV1N4112D-1?
For technical support, including JANTXV1N4112D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4112D-1 requirements.
6.How does Aetrix verify that JANTXV1N4112D-1 is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4112D-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 JANTXV1N4112D-1 meets industry standards.
7.What is the process for return or replacement of JANTXV1N4112D-1?
All JANTXV1N4112D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4112D-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 JANTXV1N4112D-1 part is unused and in its original packaging.
Return procedure for JANTXV1N4112D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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