Microchip Technology JANTX1N4115C-1/TR
- Part No.:
- JANTX1N4115C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4115C-1/TR.pdf
- Description:
- DIODE ZENER 22V 500MW DO204AH
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
JANTX1N4115C-1/TR from Microsemi is a 22 V, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to MIL-PRF-19500/435 JANTX level, with ±2% Zener voltage tolerance, 150 Ω dynamic impedance at 250 mA test current, and 0.01 µA maximum reverse leakage at 17.6 V. It serves as a precision voltage reference in military-grade power regulation and analog signal conditioning circuits.
For engineers reviewing the JANTX1N4115C-1/TR datasheet, JANTX1N4115C-1/TR pinout, JANTX1N4115C-1/TR application, or JANTX1N4115C-1/TR equivalent, this page delivers verified Zener voltage, temperature coefficient, noise density, thermal resistance, and military qualification status - critical for high-reliability analog design, voltage clamping, and reference stability under extended temperature and radiation exposure.
Technical Context
This device operates in reverse breakdown mode with cathode-banded polarity, requiring the banded end to be held positive relative to the anode for regulation. Its metallurgical bond construction ensures stable junction behavior across -65 °C to +175 °C operating range and inherent radiation hardness per Microsemi MicroNote 050.
It exhibits a +0.090 %/°C temperature coefficient of Zener voltage and 1 µV/√Hz typical noise density at 22 V, enabling low-drift, low-noise reference performance in precision instrumentation and avionics power supplies where long-term stability and ESD immunity (per MIL-STD-750 method 1020) are mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 22.0 V ±2% at 250 mA - defines precise regulation point for feedback loops and reference rails |
| Power Dissipation | 500 mW @ 25 °C, linearly derated to zero at 175 °C - sets thermal design margin for PCB copper pad layout |
| Dynamic Impedance ZZT | 150 Ω @ 250 mA - determines output voltage variation under load current changes |
| Reverse Leakage IR | 0.01 µA @ 17.6 V - ensures minimal error current in high-impedance reference networks |
| Temp Coefficient αVZ | +0.090 %/°C - quantifies voltage drift over temperature in mission-critical environments |
| Noise Density ND | 1 µV/√Hz @ 22 V - enables low-noise analog sensing and metrology-grade references |
| Junction Temp Range | -65 °C to +175 °C - supports operation in aerospace, downhole, and defense electronics |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package; cathode indicated by band; tin-lead plating; weight ≈ 0.2 g; lead length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail; forms return path for Zener current |
| Cathode (banded end) | Regulated output node | Held at stable 22 V above anode; supplies reference voltage to op-amp inputs or feedback dividers |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Guarantees screening, testing, and traceability for defense and space applications |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| 1 µV/√Hz noise density | Supports sub-millivolt reference stability in precision ADC biasing and sensor excitation |
| Hermetic glass DO-35 package | Prevents moisture ingress and parameter shift over 20+ year field life in harsh environments |
| Non-ESD-sensitive per MIL-STD-750 | Enables handling without special grounding during assembly of high-reliability systems |
Applications
| Aerospace Power Monitoring | Avionics Reference Supply |
|---|---|
Use Scenario: Voltage monitoring circuit in flight control computer power distribution unit. IC Role / Device Role / Timing Role: Zener reference element in comparator-based overvoltage detection stage. Use Value: Stable 22 V threshold ensures reliable trip point across -55 °C to +125 °C ambient with <±0.5% total drift. | Use Scenario: Precision reference for analog-to-digital conversion of engine sensor signals. IC Role / Device Role / Timing Role: Low-noise voltage reference for 16-bit SAR ADC reference input. Use Value: 1 µV/√Hz noise density prevents quantization error increase in high-resolution measurements. |
| Tactical Radio RF Biasing | Nuclear Instrumentation Calibration |
Use Scenario: Bias voltage source for GaAs FET amplifiers in S-band transceiver modules. IC Role / Device Role / Timing Role: Regulated DC supply for amplifier gate bias network. Use Value: ±2% tolerance and +0.090 %/°C TC ensure consistent gain stability across operational temperature range. | Use Scenario: Calibration reference in portable gamma spectrometer front-end. IC Role / Device Role / Timing Role: Radiation-hardened voltage standard for charge-to-voltage converter offset trimming. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or derating in high-dose environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4115US-1 | Same 22 V ±2% Zener voltage, but in surface-mount DO-213AA package; no axial leads. | Used where board space is constrained and reflow assembly is required; lacks axial mounting flexibility. | Select when automated SMT placement is needed and thermal coupling to PCB is acceptable. |
| JANTXV1N4115C-1 | Identical electrical specs but qualified to higher JANTXV reliability level with extended screening and tighter lot traceability. | Required for programs demanding enhanced burn-in, life test, and radiation test documentation. | Select when program requirements mandate JANTXV-level documentation and screening beyond JANTX. |
Compared with JANTX1N4115C-1/TR, the 1N4115US-1 offers identical regulation performance in a compact SMT form factor but sacrifices axial mounting versatility, while the JANTXV1N4115C-1 provides identical electrical behavior with stricter process controls and extended test coverage for mission-critical deployments.
Availability
JANTX1N4115C-1/TR is available at Aetrix Electronics and suitable for aerospace power monitoring, avionics reference supply, and tactical radio RF biasing requiring stable component supply, full traceability, and MIL-spec compliance.
Supply support for JANTX1N4115C-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) designs high-reliability analog and mixed-signal semiconductors for defense, aerospace, and industrial markets.
The JANTX1N4115C-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for precision voltage regulation in extreme-environment electronics where long-term parametric stability and radiation tolerance are non-negotiable.
FAQ
What is the Zener voltage tolerance of JANTX1N4115C-1/TR?
JANTX1N4115C-1/TR has a nominal Zener voltage of 22.0 V with a ±2% tolerance, as indicated by the "C" suffix in its part number per Microsemi's nomenclature. This tolerance is guaranteed under standard test conditions at 25 °C with 250 mA Zener test current, and applies across the full military temperature range when used within its derated power envelope.
Is JANTX1N4115C-1/TR RoHS compliant?
No, JANTX1N4115C-1/TR is not RoHS compliant. The "e3" RoHS designation appears only on commercial-grade versions (e.g., 1N4115C-1e3); the JANTX prefix denotes a military-qualified part with tin-lead plating per MIL-STD-750, which is exempt from RoHS restrictions under applicable defense procurement regulations.
What is the maximum reverse leakage current for JANTX1N4115C-1/TR?
JANTX1N4115C-1/TR has a maximum reverse leakage current (IR) of 0.01 µA at 17.6 V (80% of nominal VZ), as specified in the Electrical Characteristics table on page 3 of the T4-LDS-0245-2 datasheet. This ultra-low leakage ensures minimal loading in high-impedance reference divider networks.
Does JANTX1N4115C-1/TR require heatsinking in standard operation?
JANTX1N4115C-1/TR does not require external heatsinking at 500 mW dissipation when mounted on FR4 with 4 mm² copper pads and 1 mm track width, per its RθJA = 300 °C/W rating. However, thermal derating begins at 50 °C lead temperature, so sustained operation above 50 °C ambient may require increased copper area or forced airflow to maintain junction temperature below 175 °C.
How is polarity marked on JANTX1N4115C-1/TR?
JANTX1N4115C-1/TR uses a cathode band marking: the banded end is the cathode and must be held positive relative to the unmarked (anode) end for proper Zener regulation. This polarity is consistent across all DO-35 packaged devices in the 1N4099–1N4135 series and is verified per MIL-STD-750 method 2026 solderability testing.
JANTX1N4115C-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):
- 22 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 150 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 16.8 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)
JANTX1N4115C-1/TR FAQ
1.How can I place an order for JANTX1N4115C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4115C-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 JANTX1N4115C-1/TR reliable?
The price and inventory of JANTX1N4115C-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 JANTX1N4115C-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4115C-1/TR?
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Once your JANTX1N4115C-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 JANTX1N4115C-1/TR?
For technical support, including JANTX1N4115C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4115C-1/TR requirements.
6.How does Aetrix verify that JANTX1N4115C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4115C-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 JANTX1N4115C-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4115C-1/TR?
All JANTX1N4115C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4115C-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 JANTX1N4115C-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N4115C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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