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Microchip Technology JANTXV1N4112C-1/TR
- Part No.:
- JANTXV1N4112C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4112C-1/TR.pdf
- Description:
- DIODE ZENER 18V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,989
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Product details
Overview
JANTXV1N4112C-1/TR from Microsemi is a 500 mW, 18.0 V ±2% tolerance Zener diode in DO-35 glass axial package, qualified to JANTXV level per MIL-PRF-19500/435, with 100 Ω dynamic impedance at 250 mA and max noise density of 1 µV/√Hz - used for precision voltage regulation in military-grade power supplies and reference circuits.
For engineers reviewing the JANTXV1N4112C-1/TR datasheet, JANTXV1N4112C-1/TR pinout, JANTXV1N4112C-1/TR application, or JANTXV1N4112C-1/TR equivalent, key selection criteria include Zener voltage tolerance (±2%), JANTXV reliability qualification, DO-35 thermal resistance (250 °C/W), and low-noise performance below 1 µV/√Hz at 18 V.
Technical Context
This device operates as a reverse-biased voltage regulator with metallurgically bonded junction for enhanced reliability and radiation hardness. It delivers stable 18.0 V regulation across current range 250 mA (IZT) to 13.7 mA (IZM), with temperature coefficient +0.090 %/°C and dynamic impedance ZZT = 100 Ω measured at 10% AC modulation of IZT.
Designed for high-reliability environments, JANTXV1N4112C-1/TR features hermetically sealed DO-35 glass construction, non-ESD-sensitive behavior per MIL-STD-750 Method 1020, and linear power derating from 500 mW at 25 °C to zero at 175 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 18.0 V ±2% at 250 mA test current - ensures tight regulation stability in precision references. |
| Power Dissipation | 500 mW at 25 °C lead temperature - supports continuous operation in compact, unheatsinked layouts. |
| Dynamic Impedance ZZT | 100 Ω at 250 mA - minimizes output voltage variation under load transients. |
| Noise Density ND | 1 µV/√Hz - critical for low-noise analog references and sensor excitation circuits. |
| Temp Coefficient αVZ | +0.090 %/°C - enables predictable drift compensation in wide-temperature military systems. |
| Max Reverse Current IR | 0.05 µA at 14.4 V - guarantees minimal leakage in high-impedance bias networks. |
| Junction Temp Range | –65 to +175 °C - validated for aerospace, downhole, and avionics thermal cycling. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 Method 2026. Weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to circuit ground or lower potential when used in reverse-bias regulation mode. |
| Cathode (banded end) | Zener breakdown terminal | Connected to regulated positive rail; polarity marking essential for correct orientation in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Validated screening for burn-in, temperature cycling, and life testing - required for Class V space and defense programs. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock - improves long-term parameter stability in harsh environments. |
| Low noise density (1 µV/√Hz) | Enables use in ultra-low-noise voltage references without external filtering - reduces BOM count in metrology designs. |
| Hermetic glass seal | Prevents moisture ingress and parametric shift over 20+ year field life - meets MIL-STD-883 requirements for humidity resistance. |
| Non-ESD sensitive | Withstands >4 kV HBM without parameter shift - simplifies handling and eliminates ESD protection circuitry in final assembly. |
Applications
| Avionics Power Reference | Military Radar Bias Supply |
|---|---|
Use Scenario: Provides stable 18 V reference for ADC front-end and op-amp biasing in airborne mission computers operating from –55 to +125 °C. IC Role / Device Role / Timing Role: Precision Zener reference source replacing higher-cost IC references where radiation tolerance is mandatory. Use Value: Maintains <±0.1% output drift over full temperature range due to +0.090 %/°C TC and hermetic packaging. | Use Scenario: Supplies regulated bias voltage to GaN RF amplifier stages in ground-based radar transmitters exposed to vibration and thermal cycling. IC Role / Device Role / Timing Role: High-reliability shunt regulator ensuring consistent gate bias despite input ripple and transient load changes. Use Value: 100 Ω dynamic impedance limits output deviation to <180 mV under 100 mA step load, preserving amplifier linearity. |
| Satellite Payload Voltage Monitor | Nuclear Instrumentation Calibration |
Use Scenario: Serves as primary voltage standard in on-board telemetry calibration subsystems requiring TID tolerance >100 krad(Si). IC Role / Device Role / Timing Role: Radiation-hardened Zener reference referenced against flight-grade DACs for sensor channel calibration. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or redundancy - reduces SWaP-C. | Use Scenario: Generates traceable 18 V reference in portable radiation survey meters used in nuclear decommissioning sites. IC Role / Device Role / Timing Role: Low-noise, long-term stable voltage source for charge-integration amplifier feedback networks. Use Value: 1 µV/√Hz noise density prevents signal masking of sub-picoamp detector currents - extends measurement resolution. |
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/TR | Same 18 V ±2%, but in surface-mount DO-213AA package; RθJA = 400 °C/W vs. 300 °C/W for DO-35. | Used where board space is constrained and reflow assembly is preferred; not suitable for through-hole or high-power dissipation. | Select when automated SMT placement is required and thermal budget allows higher junction rise. |
| JANTXV1N4112D-1/TR | Identical electrical specs except tighter ±1% Zener tolerance; same DO-35 package and JANTXV qualification. | Applied in metrology-grade references where 1% initial accuracy is mandated over 2%. | Choose only if system-level calibration budget requires <±0.5% total uncertainty at room temperature. |
Compared with JANTXV1N4112C-1/TR, the US variant trades axial-mount flexibility and lower thermal resistance for SMT compatibility, while the D variant adds cost for tighter tolerance without improving noise or temperature coefficient - making C the optimal balance for most JANTXV-class systems.
Availability
JANTXV1N4112C-1/TR is available at Aetrix Electronics and suitable for avionics power references, military radar bias supplies, and satellite payload voltage monitors requiring stable component supply with full MIL-PRF-19500 traceability and lot-level documentation.
Supply support for JANTXV1N4112C-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 aerospace-grade components.
The 1N4099–1N4135 series was designed specifically to meet MIL-PRF-19500/435 requirements for Zener regulation in defense, space, and nuclear instrumentation - emphasizing long-term stability, hermeticity, and parametric consistency under extreme stress.
FAQ
What is the Zener voltage tolerance of JANTXV1N4112C-1/TR?
JANTXV1N4112C-1/TR has a nominal Zener voltage of 18.0 V with ±2% tolerance, verified per MIL-PRF-19500/435 test conditions at 250 mA test current and 25 °C ambient. This tolerance is marked by the "C" suffix in the part nomenclature and applies across the full qualified temperature range of –65 to +175 °C.
Is JANTXV1N4112C-1/TR RoHS compliant?
No, JANTXV1N4112C-1/TR is not RoHS compliant. Per Microsemi documentation, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade parts; JANTXV-level devices retain tin-lead plating to ensure solderability and reliability under MIL-STD-750 Method 2026 requirements.
What is the maximum Zener current IZM for JANTXV1N4112C-1/TR?
The maximum Zener current IZM for JANTXV1N4112C-1/TR is 13.7 mA, derived from its 500 mW power rating and 18.0 V nominal Zener voltage. This value assumes operation at 25 °C lead temperature; current must be linearly derated above 50 °C per the published power derating curve.
Does JANTXV1N4112C-1/TR require heatsinking in typical applications?
JANTXV1N4112C-1/TR does not require external heatsinking in typical applications due to its DO-35 package thermal resistance of 250 °C/W (junction-to-lead) and 300 °C/W (junction-to-ambient on FR4). At 500 mW dissipation and 25 °C ambient, junction temperature rises to ~150 °C - within its rated –65 to +175 °C range when lead length ≥10 mm.
How is polarity identified on JANTXV1N4112C-1/TR?
Polarity on JANTXV1N4112C-1/TR is identified by a single cathode band near one end of the DO-35 glass body. The banded end is the cathode and must be connected to the more positive potential in Zener regulation mode; the unbanded end is the anode and connects to ground or lower potential.
JANTXV1N4112C-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):
- 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/TR FAQ
1.How can I place an order for JANTXV1N4112C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4112C-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 JANTXV1N4112C-1/TR reliable?
The price and inventory of JANTXV1N4112C-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 JANTXV1N4112C-1/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4112C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4112C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4112C-1/TR?
JANTXV1N4112C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4112C-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 JANTXV1N4112C-1/TR?
For technical support, including JANTXV1N4112C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4112C-1/TR requirements.
6.How does Aetrix verify that JANTXV1N4112C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4112C-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 JANTXV1N4112C-1/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4112C-1/TR?
All JANTXV1N4112C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4112C-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 JANTXV1N4112C-1/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4112C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4112C-1/TR Tags
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