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Microchip Technology JANTX1N4119C-1
- Part No.:
- JANTX1N4119C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4119C-1.pdf
- Description:
- DIODE ZENER 28V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,755
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Product details
Overview
JANTX1N4119C-1 from Microsemi is a 500 mW, 28.0 V ±2% metallurgically bonded glass Zener diode in DO-35 package, qualified to JANTX reliability level per MIL-PRF-19500/435, used for precision voltage regulation in high-reliability analog power supplies and reference circuits.
For engineers reviewing the JANTX1N4119C-1 datasheet, JANTX1N4119C-1 pinout, JANTX1N4119C-1 application, or JANTX1N4119C-1 equivalent, key selection criteria include Zener voltage tolerance (±2%), dynamic impedance (200 Ω at 250 mA), noise density (1 µV/√Hz), temperature coefficient (+0.095 %/°C), and hermetic DO-35 packaging for aerospace-grade thermal and radiation stability.
Technical Context
This device operates as a reverse-biased voltage reference with a nominal Zener voltage of 28.0 V at 250 mA test current, exhibiting low dynamic impedance (200 Ω) and minimal noise density (1 µV/√Hz). Its metallurgical bond construction ensures stable regulation across -65 °C to +175 °C junction temperature range.
The JANTX1N4119C-1 is designed for operation with cathode band positive relative to anode, supports 500 mW average power dissipation at 25 °C (derated linearly to zero at 175 °C), and maintains <0.01 µA reverse leakage at 21.3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 28.0 V ±2% at 250 mA - sets precise reference point for feedback loops in regulated DC supplies. |
| Power Dissipation | 500 mW at 25 °C - supports stable operation in compact through-hole designs without forced cooling. |
| Dynamic Impedance ZZT | 200 Ω at IZT = 250 mA - ensures tight regulation under varying load currents in analog references. |
| Noise Density | 1 µV/√Hz - enables low-noise performance in precision instrumentation and ADC reference circuits. |
| Temp Coefficient αVZ | +0.095 %/°C - allows predictable drift compensation in wide-temperature military systems. |
| Reverse Leakage IR | <0.01 µA at 21.3 V - guarantees minimal error contribution in high-impedance bias networks. |
| Junction Temp Range | -65 °C to +175 °C - meets extended environmental requirements for avionics and space-qualified electronics. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package; cathode identified by single black band; leads tin-lead plated, solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail; defines return path for Zener current. |
| Cathode (banded end) | Regulated output node | Provides stable 28.0 V output when reverse biased; must be held positive relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for defense/aerospace use with full traceability and screening per military standards. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock in harsh environments. |
| Low noise density (1 µV/√Hz) | Enables direct use in high-resolution sensor signal chains and precision DAC/ADC reference buffers. |
| Hermetic glass DO-35 package | Prevents moisture ingress and long-term parameter drift in humid or corrosive operational settings. |
| Non-ESD-sensitive design | Withstands handling without special ESD controls per MIL-STD-750 method 1020, simplifying assembly logistics. |
Applications
| Avionics Power Reference | Military Radar Bias Supply |
|---|---|
Use Scenario: Provides stable 28.0 V reference for analog-to-digital converters in flight control computers operating across -55 °C to +125 °C ambient. IC Role / Device Role / Timing Role: Zener diode acting as primary voltage reference for precision data acquisition subsystems. Use Value: ±2% tolerance and +0.095 %/°C TC ensure <±0.5% total error over full temperature range without calibration. | Use Scenario: Supplies regulated bias voltage to GaN RF amplifier stages in ground-based radar transmitters exposed to vibration and thermal shock. IC Role / Device Role / Timing Role: High-reliability Zener regulator maintaining stable gate bias under pulsed RF load conditions. Use Value: Hermetic DO-35 package and JANTX screening prevent parametric shift during 100,000+ hour field deployments. |
| Satellite Payload Voltage Reference | Tactical Radio LNA Stabilization |
Use Scenario: Serves as secondary reference in redundant power management units aboard low-Earth orbit satellites subject to total ionizing dose (TID). IC Role / Device Role / Timing Role: Radiation-hardened Zener diode providing backup regulation when primary DC-DC converters experience upset. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or derating in TID >100 krad(Si) environments. | Use Scenario: Stabilizes supply to low-noise amplifiers in handheld tactical radios operating from battery packs with variable voltage sag. IC Role / Device Role / Timing Role: Low-noise (1 µV/√Hz) Zener shunt regulator maintaining constant LNA bias despite input ripple. Use Value: Sub-microamp reverse leakage and minimal capacitance preserve RF gain flatness up to 2 GHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4119US-1 | Same electrical specs but in surface-mount DO-213AA package; no axial leads. | Used where board space is constrained and reflow assembly is required. | Select when transitioning from through-hole to SMT manufacturing without changing circuit topology. |
| JAN1N4119C-1 | Identical electrical and mechanical specs but qualified only to JAN (not JANTX) level per MIL-PRF-19500/435. | Approved for less demanding military programs where full JANTX screening is not mandated. | Choose for cost-sensitive defense subsystems where JANTX-level burn-in and life testing are unnecessary. |
Compared with JANTX1N4119C-1, the 1N4119US-1 enables PCB area reduction and automated assembly, while the JAN1N4119C-1 offers identical performance at lower qualification cost-neither is pin-compatible due to differing packages or screening scope.
Availability
JANTX1N4119C-1 is available at Aetrix Electronics and suitable for avionics power reference, military radar bias supply, and satellite payload voltage reference requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTX1N4119C-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, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The JANTX1N4119C-1 belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for precision voltage regulation in mission-critical systems where long-term stability and environmental resilience are mandatory.
FAQ
What is the Zener voltage tolerance of JANTX1N4119C-1?
JANTX1N4119C-1 has a Zener voltage tolerance of ±2%, indicated by the "C" suffix in its part number per Microsemi's nomenclature. This means its actual breakdown voltage falls within 27.44 V to 28.56 V at 250 mA test current and 25 °C, enabling tighter regulation than standard ±5% variants in critical feedback paths.
Is JANTX1N4119C-1 RoHS compliant?
No, JANTX1N4119C-1 is not RoHS compliant. Per Microsemi documentation, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade parts-not for JANTX-qualified devices like JANTX1N4119C-1, which retain leaded plating to meet MIL-STD-750 solderability requirements.
What is the maximum reverse leakage current for JANTX1N4119C-1?
The maximum reverse leakage current for JANTX1N4119C-1 is 0.01 µA at 21.3 V (75% of nominal VZ). This ultra-low leakage ensures negligible error in high-impedance reference divider networks and preserves accuracy in battery-powered systems where standby current matters.
Can JANTX1N4119C-1 be used in surface-mount designs?
No, JANTX1N4119C-1 uses a DO-35 axial-leaded package and is not suitable for surface-mount assembly. For SMT equivalents, consider Microsemi's 1N4119US-1 in DO-213AA package-same electrical specs but different mechanical form factor and qualification level.
What is the thermal resistance junction-to-lead for JANTX1N4119C-1?
JANTX1N4119C-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. This value guides heatsinking decisions in high-power analog regulators, especially when operating near 500 mW dissipation limits at elevated ambient temperatures.
JANTX1N4119C-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):
- 28 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 21.3 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)
JANTX1N4119C-1 FAQ
1.How can I place an order for JANTX1N4119C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4119C-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 JANTX1N4119C-1 reliable?
The price and inventory of JANTX1N4119C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4119C-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4119C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4119C-1 transactions.
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4.How is shipping managed for JANTX1N4119C-1?
JANTX1N4119C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4119C-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 JANTX1N4119C-1?
For technical support, including JANTX1N4119C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4119C-1 requirements.
6.How does Aetrix verify that JANTX1N4119C-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4119C-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 JANTX1N4119C-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4119C-1?
All JANTX1N4119C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4119C-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 JANTX1N4119C-1 part is unused and in its original packaging.
Return procedure for JANTX1N4119C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4119C-1 Tags
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