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Microchip Technology JANTXV1N4112C-1
- Part No.:
- JANTXV1N4112C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4112C-1.pdf
- Description:
- DIODE ZENER 18V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,390
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Product details
Overview
JANTXV1N4112C-1 from Microsemi is a 500 mW, 18.0 V ±2% 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 JANTXV1N4112C-1 datasheet, JANTXV1N4112C-1 pinout, JANTXV1N4112C-1 application, or JANTXV1N4112C-1 equivalent, key selection criteria include Zener voltage tolerance (±2%), low noise density (1 µV/√Hz), radiation hardness, hermetic glass sealing, and thermal resistance (RθJL = 250 °C/W at 3/8″ lead length).
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 18.0 V at 250 mA test current (IZT), dynamic impedance of 100 Ω at IZT, and maximum reverse leakage current of 0.05 µA at 13.7 V (VR). Its metallurgical bond construction ensures stable regulation across temperature extremes.
It exhibits a positive temperature coefficient of +0.090 %/°C and supports operation from −65 °C to +175 °C junction temperature. Power dissipation is rated at 500 mW at 25 °C, linearly derated to zero at 175 °C with defined RθJA = 300 °C/W and RθJL = 250 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 18.0 V ±2% at IZT = 250 mA - defines precise regulation point under standard test conditions |
| Power Dissipation (PM(AV)) | 500 mW at TL = 25 °C - sets maximum continuous DC power handling before thermal derating begins |
| Dynamic Impedance (ZZT) | 100 Ω at IZT - determines output voltage stability under varying load current |
| Noise Density (ND) | 1 µV/√Hz at IZT - enables low-noise reference use in precision analog circuits |
| Reverse Leakage (IR) | 0.05 µA at VR = 13.7 V - ensures minimal parasitic current in off-state bias networks |
| Temp. Coefficient (αVZ) | +0.090 %/°C - quantifies voltage drift per degree Celsius for thermal design margining |
| Junction Temp. Range | −65 °C to +175 °C - supports operation in extreme environmental conditions without derating |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode indicated by band; operated with banded end positive for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; establishes return path for Zener current |
| Cathode | Regulated output node | Banded end; supplies stable 18.0 V reference when reverse-biased above breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Ensures long-term parameter stability and reduced parameter drift under thermal cycling |
| MIL-PRF-19500/435 JANTXV qualification | Validates reliability for mission-critical defense and space systems requiring extended lifetime and burn-in screening |
| Low noise density (1 µV/√Hz) | Supports use in high-resolution ADC references and low-noise analog front-ends |
| Hermetic glass sealing | Prevents moisture ingress and parameter shift in humid or corrosive environments |
| Radiation hardness | Enables operation in high-radiation environments per Microsemi MicroNote 050 without parameter degradation |
Applications
| Avionics Power Monitoring | Satellite Onboard Computer Reference |
|---|---|
Use Scenario: Regulating reference voltage for analog-to-digital converters monitoring 28 V aircraft bus voltage. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable 18.0 V input to precision ADC driver stage. Use Value: ±2% tolerance and +0.090 %/°C TC ensure <±0.5% total error over −55 °C to +125 °C operational range. | Use Scenario: Supplying reference voltage to radiation-tolerant voltage supervisor ICs in LEO satellite payloads. IC Role / Device Role / Timing Role: Primary voltage reference for reset threshold generation in fault-tolerant power management ASICs. Use Value: Inherent radiation hardness eliminates need for shielding or redundancy, reducing SWaP-C. |
| Tactical Radio RF Bias Network | Nuclear Instrumentation Calibration Source |
Use Scenario: Setting bias point for GaN PA driver stages in handheld SDR transceivers operating across −40 °C to +85 °C. IC Role / Device Role / Timing Role: Stable Zener element in temperature-compensated bias network for RF power amplifier linearity control. Use Value: Low 100 Ω ZZT maintains regulation accuracy despite rapid current transients during modulation. | Use Scenario: Generating traceable 18.0 V calibration reference for portable gamma spectrometer front-end amplifiers. IC Role / Device Role / Timing Role: Precision shunt reference used in metrology-grade voltage divider chains. Use Value: 1 µV/√Hz noise density prevents signal-to-noise degradation in sub-keV energy resolution measurements. |
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 ±2% Zener voltage, but in surface-mount DO-213AA package; no axial leads | Requires PCB rework for SMT assembly; unsuitable for through-hole prototyping or legacy board repair | Select when automated assembly, space constraints, or vibration resistance are prioritized over manual serviceability |
| JANTXV1N4112D-1 | Identical electrical specs except tighter ±1% Zener voltage tolerance; same DO-35 package and JANTXV qualification | Used where tighter initial accuracy is required, e.g., in calibration equipment or metrology standards | Select when absolute initial voltage accuracy outweighs cost premium of ±1% grade |
Compared with JANTXV1N4112C-1, the 1N4112US-1 offers footprint reduction at the expense of mechanical serviceability, while JANTXV1N4112D-1 delivers higher initial accuracy without changing thermal or reliability behavior-enabling trade-offs between calibration confidence and procurement cost.
Availability
JANTXV1N4112C-1 is available at Aetrix Electronics and suitable for avionics power monitoring, satellite onboard computer reference, and tactical radio RF bias network applications requiring stable component supply, full traceability, and long-lifecycle support.
Supply support for JANTXV1N4112C-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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The JANTXV1N4112C-1 belongs to Microsemi's MIL-qualified Zener diode family engineered for precision voltage regulation in harsh-environment systems where radiation tolerance, hermeticity, and long-term stability are mandatory.
FAQ
What is the Zener voltage tolerance of JANTXV1N4112C-1?
JANTXV1N4112C-1 has a Zener voltage tolerance of ±2%, meaning its actual regulated voltage falls within 17.64 V to 18.36 V at 250 mA test current and 25 °C ambient. This tolerance is confirmed in the Electrical Characteristics table on page 3 of Microsemi T4-LDS-0245-2 Rev. 1, and applies specifically to the "C" suffix variant of the JANTXV1N4112 series.
Is JANTXV1N4112C-1 suitable for high-radiation environments?
Yes, JANTXV1N4112C-1 is inherently radiation hard as documented in Microsemi MicroNote 050. Its metallurgically bonded glass construction and MIL-PRF-19500/435 JANTXV qualification confirm performance retention in total ionizing dose (TID) environments typical of LEO and GEO satellite missions.
What is the maximum reverse leakage current for JANTXV1N4112C-1?
The maximum reverse leakage current (IR) for JANTXV1N4112C-1 is 0.05 µA at VR = 13.7 V, as specified in the Electrical Characteristics table on page 3 of the official datasheet. This ultra-low leakage supports high-impedance bias networks and precision reference divider applications.
Does JANTXV1N4112C-1 have RoHS compliance?
No, JANTXV1N4112C-1 is not RoHS compliant. Per the nomenclature guide on page 2 of T4-LDS-0245-2, the "e3" suffix denotes RoHS compliance, which is only available on commercial-grade versions-not JANTXV-level devices like JANTXV1N4112C-1.
What is the thermal resistance junction-to-lead for JANTXV1N4112C-1?
JANTXV1N4112C-1 has a thermal resistance junction-to-lead (RθJL) of 250 °C/W when measured at 3/8″ (10 mm) lead length from the body, as stated in the Maximum Ratings table on page 1. This value is critical for calculating junction temperature rise under sustained power dissipation.
JANTXV1N4112C-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:
- ±2%
- 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)
JANTXV1N4112C-1 FAQ
1.How can I place an order for JANTXV1N4112C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4112C-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 JANTXV1N4112C-1 reliable?
The price and inventory of JANTXV1N4112C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4112C-1 is usually 5 days.
3.What payment methods are accepted for JANTXV1N4112C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4112C-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4112C-1?
JANTXV1N4112C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4112C-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 JANTXV1N4112C-1?
For technical support, including JANTXV1N4112C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4112C-1 requirements.
6.How does Aetrix verify that JANTXV1N4112C-1 is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4112C-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 JANTXV1N4112C-1 meets industry standards.
7.What is the process for return or replacement of JANTXV1N4112C-1?
All JANTXV1N4112C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4112C-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 JANTXV1N4112C-1 part is unused and in its original packaging.
Return procedure for JANTXV1N4112C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4112C-1 Tags
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Diodes Incorporated
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