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Microchip Technology JANTX1N4109C-1
- Part No.:
- JANTX1N4109C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4109C-1.pdf
- Description:
- DIODE ZENER 15V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,014
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Product details
Overview
JANTX1N4109C-1 from Microsemi is a 500 mW, 15 V Zener voltage regulator diode in DO-35 glass axial-leaded package, qualified to JANTX reliability level per MIL-PRF-19500/435, with ±2% Zener voltage tolerance, 100 Ω dynamic impedance at 250 mA test current, and maximum reverse leakage of 50 nA at 12.75 V. It delivers stable reference voltage in precision analog power supplies and military-grade voltage regulation circuits.
For engineers reviewing the JANTX1N4109C-1 datasheet, JANTX1N4109C-1 pinout, JANTX1N4109C-1 application, or JANTX1N4109C-1 equivalent, key selection criteria include Zener voltage accuracy (±2%), low noise density (1 μV/√Hz), MIL-spec qualification level, thermal resistance (250 °C/W junction-to-lead), and hermetic DO-35 packaging for high-reliability environments.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining a stable 15.0 V output across load variations by conducting reverse current above its breakdown threshold. Its metallurgically bonded construction ensures mechanical robustness and long-term stability under thermal cycling and radiation exposure.
Designed for operation at 250 mA Zener test current (IZT), it exhibits 100 Ω dynamic impedance (ZZT) and a positive temperature coefficient of +0.085 %/°C - enabling predictable drift compensation in temperature-critical references. Reverse leakage remains ≤50 nA at VR = 12.75 V, supporting low-power biasing in high-impedance circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 15.0 V ±2% at 250 mA - provides precise, repeatable reference voltage for calibration and feedback loops |
| Power Dissipation | 500 mW at 25 °C lead temperature - supports continuous regulation in compact through-hole layouts with 3/8″ lead length |
| Dynamic Impedance ZZT | 100 Ω at IZT = 250 mA - ensures minimal output voltage variation under changing load current |
| Reverse Leakage IR | ≤50 nA at VR = 12.75 V - enables use in ultra-low-current bias networks without compromising regulation |
| Noise Density ND | 1 μV/√Hz at 25 °C - critical for low-noise analog references in instrumentation and ADC front-ends |
| Temp Coefficient αVZ | +0.085 %/°C - allows accurate thermal drift modeling in wide-temperature-range designs |
| Junction Temp Range | –65 to +175 °C - supports operation in aerospace, downhole, and defense systems with extreme ambient conditions |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package. Cathode indicated by single black band; banded end must be held positive relative to anode for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; establishes return path for Zener current during regulation |
| Cathode | Regulated output node | Banded terminal; supplies stable 15 V to load when reverse-biased above breakdown voltage |
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 shock and vibration stress |
| 1 μV/√Hz noise density | Enables sub-millivolt reference stability in high-resolution measurement systems |
| Hermetic glass DO-35 package | Prevents moisture ingress and parameter shift over decades in sealed enclosures |
| Non-ESD-sensitive design | Withstands handling without special grounding - compliant with MIL-STD-750 Method 1020 |
Applications
| Aerospace Power Monitoring | Military Radio Reference Supply |
|---|---|
Use Scenario: Voltage monitoring circuit in satellite power distribution unit detecting undervoltage faults on 28 V bus. IC Role / Device Role / Timing Role: Shunt reference diode providing 15 V threshold for comparator input. Use Value: ±2% tolerance and –65 to +175 °C operation ensure fault detection integrity across orbital thermal cycles. | Use Scenario: Stable bias reference for RF power amplifier stage in manpack tactical radio. IC Role / Device Role / Timing Role: Zener-regulated supply rail for GaAs FET gate bias network. Use Value: 1 μV/√Hz noise density prevents AM sideband degradation in 30–88 MHz transmit chain. |
| Downhole Sensor Calibration | Nuclear Instrumentation Reference |
Use Scenario: Precision voltage reference for strain gauge bridge excitation in oil well logging tool. IC Role / Device Role / Timing Role: Primary 15 V reference source feeding 24-bit sigma-delta ADC driver. Use Value: Metallurgical bond and hermetic seal maintain calibration accuracy after 200 °C thermal soak and gamma exposure. | Use Scenario: Bias reference for photomultiplier tube (PMT) high-voltage divider in radiation detector. IC Role / Device Role / Timing Role: Low-drift Zener element in 10-stage resistive divider network. Use Value: +0.085 %/°C tempco enables predictable gain correction across 0–50 °C lab environment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4744A | Commercial-grade, 14 V ±5%, DO-41 package, 1 W rating, no MIL qualification | Lacks radiation hardness, temperature range (–65 to +175 °C), and screening for defense use | Select only for cost-sensitive industrial prototypes where MIL specs are not required |
| JANTXV1N4109C-1 | Same electrical specs but qualified to higher JANTXV level with extended screening and tighter lot traceability | Required for flight-critical subsystems where burn-in, life test, and radiation data are mandated | Choose when program documentation requires JANTXV-level conformance per MIL-PRF-19500/435 |
Compared with JANTX1N4109C-1, the 1N4744A offers higher power but lacks military screening and low-noise performance, while JANTXV1N4109C-1 provides identical regulation with enhanced reliability assurance - making the original optimal for balanced cost, performance, and qualification in avionics and secure comms.
Availability
JANTX1N4109C-1 is available at Aetrix Electronics and suitable for aerospace power monitoring, military radio reference supply, and downhole sensor calibration requiring stable component supply with full MIL-spec traceability and long-term obsolescence management.
Supply support for JANTX1N4109C-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 and mixed-signal ICs, discrete devices, and RF solutions for aerospace, defense, and industrial markets.
JANTX1N4109C-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for precision voltage reference and regulation in mission-critical systems where parameter stability, radiation tolerance, and long-term reliability are non-negotiable.
FAQ
What is the Zener voltage tolerance of JANTX1N4109C-1?
JANTX1N4109C-1 has a nominal Zener voltage of 15.0 V with a tolerance of ±2%, as indicated by the "C" suffix in its part number per Microsemi's nomenclature. This tight tolerance is achieved through post-screening binning and supports high-accuracy voltage references in calibrated equipment. The device maintains this specification across its rated operating temperature range of –65 to +175 °C.
Is JANTX1N4109C-1 RoHS compliant?
No, JANTX1N4109C-1 is not RoHS compliant. Per Microsemi documentation, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade variants, not for JAN, JANTX, JANTXV, or JANS reliability levels. JANTX1N4109C-1 retains traditional tin-lead plating to meet MIL-STD-750 solderability requirements and ensure compatibility with legacy military assembly processes.
What is the maximum Zener test current for JANTX1N4109C-1?
The maximum Zener test current (IZT) for JANTX1N4109C-1 is 250 mA, as specified in Microsemi's T4-LDS-0245-2 datasheet. This current defines the operating point at which Zener voltage (15.0 V), dynamic impedance (100 Ω), and noise density (1 μV/√Hz) are measured. Continuous operation at this current requires adherence to the 500 mW power derating curve, especially above 50 °C lead temperature.
Does JANTX1N4109C-1 have radiation hardness?
Yes, JANTX1N4109C-1 is inherently radiation-hardened as documented in Microsemi MicroNote 050. Its metallurgically bonded structure and hermetic DO-35 glass package provide tolerance to total ionizing dose (TID) and displacement damage, making it suitable for low-earth orbit (LEO) and terrestrial nuclear environments without additional shielding or upscreening.
What is the thermal resistance junction-to-lead for JANTX1N4109C-1?
JANTX1N4109C-1 has a thermal resistance of 250 °C/W junction-to-lead when mounted with 3/8″ (10 mm) lead length from the package body, per MIL-PRF-19500/435 test conditions. This value enables accurate junction temperature estimation during thermal design - for example, at 250 mA and 15 V, power dissipation is 3.75 W, so ΔTJL = 3.75 × 250 = 938 °C - confirming that practical operation stays well below the 175 °C max junction limit only when leads act as primary heat paths.
JANTX1N4109C-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):
- 15 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.4 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)
JANTX1N4109C-1 FAQ
1.How can I place an order for JANTX1N4109C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4109C-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 JANTX1N4109C-1 reliable?
The price and inventory of JANTX1N4109C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4109C-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4109C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4109C-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4109C-1?
JANTX1N4109C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4109C-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 JANTX1N4109C-1?
For technical support, including JANTX1N4109C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4109C-1 requirements.
6.How does Aetrix verify that JANTX1N4109C-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4109C-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 JANTX1N4109C-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4109C-1?
All JANTX1N4109C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4109C-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 JANTX1N4109C-1 part is unused and in its original packaging.
Return procedure for JANTX1N4109C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4109C-1 Tags
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