Microchip Technology JAN1N4115-1
- Part No.:
- JAN1N4115-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4115-1.pdf
- Description:
- DIODE ZENER 22V DO204AH
- Quantity:
- Payment:

- Shipping:

Inventory:9,518
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Product details
Overview
JAN1N4115-1 from Microsemi is a 500 mW, 22.0 V ±5% metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to MIL-PRF-19500/435 JAN level for high-reliability regulation. It delivers 16.8 mA Zener test current at 22 V with 150 Ω dynamic impedance and operates across –65 °C to +175 °C junction temperature range in voltage reference and power supply feedback circuits.
For engineers reviewing the JAN1N4115-1 datasheet, JAN1N4115-1 pinout, JAN1N4115-1 application, or JAN1N4115-1 equivalent, key selection criteria include its MIL-qualified reliability grade, 22 V nominal Zener voltage with ±5% tolerance, 150 Ω dynamic impedance at 250 µA ac modulation, low 0.01 µA reverse leakage at 17.6 V, and hermetically sealed DO-35 package suitable for aerospace and defense power conditioning.
Technical Context
The JAN1N4115-1 functions as a precision voltage reference in reverse-biased breakdown mode, with Zener voltage specified at 22.0 V under 250 mA dc test current (IZT). Its metallurgical bond construction ensures stable regulation over wide temperature extremes and radiation environments.
It exhibits a +0.090 %/°C temperature coefficient, minimal capacitance (typical <2 pF per Figure 3), and noise density of 1 µV/√Hz - consistent with Zener diodes below 6.8 V. Thermal resistance is 250 °C/W junction-to-lead (3/8″ lead length).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 22.0 V ±5% at IZT = 250 mA - defines stable regulation point for feedback loops and reference generation. |
| Max Power Dissipation | 0.5 W at TC = 25 °C - supports continuous operation in compact linear regulator designs with thermal derating above 50 °C. |
| Dynamic Impedance ZZT | 150 Ω at 250 mA IZT with 10% rms ac modulation - determines output voltage stability under load transients. |
| Reverse Leakage IR | 0.01 µA max at VR = 17.6 V - ensures negligible error current in high-impedance reference nodes. |
| Junction Temperature Range | –65 °C to +175 °C - enables deployment in extreme-environment avionics, downhole, and military electronics. |
| Noise Density ND | 1 µV/√Hz - provides ultra-low noise for precision analog references where signal integrity is critical. |
| Temp Coefficient αVZ | +0.090 %/°C - quantifies voltage drift with ambient change; enables accurate thermal compensation modeling. |
Pinout & Package
Package: DO-35 (DO-204AH), axial-leaded, hermetically sealed glass case with cathode band marking. Dimensions: body diameter 1.42–2.29 mm, body length 3.56–5.08 mm, lead length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit common or ground when used in standard shunt regulation configuration. |
| Cathode | Zener regulation terminal / voltage reference output | Banded end; connected to unregulated input rail; maintains 22.0 V relative to anode during reverse breakdown. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Guarantees screening, testing, and traceability for defense/aerospace applications requiring assured reliability. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock, enhancing long-term stability. |
| Hermetic glass DO-35 package | Prevents moisture ingress and contamination, supporting >20-year field life in harsh environmental conditions. |
| Low noise density (1 µV/√Hz) | Enables use in high-resolution ADC references and low-noise instrumentation without additional filtering. |
| Non-ESD-sensitive design | Withstands handling per MIL-STD-750 Method 1020 - no special ESD controls required during assembly. |
Applications
| Aerospace Power Conditioning | Defense System Reference |
|---|---|
Use Scenario: Regulating auxiliary 24 V bus voltage in satellite power distribution units under thermal vacuum and radiation exposure. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable 22 V setpoint for error amplifiers in isolated DC-DC converters. Use Value: JAN-level qualification and radiation hardness ensure uninterrupted operation in LEO/GEO orbits without recalibration. | Use Scenario: Generating precise bias voltage for RF front-end LNAs in tactical radios operating across –40 °C to +85 °C ambient. IC Role / Device Role / Timing Role: Low-noise 22 V reference source for active bias networks requiring minimal voltage drift and ripple. Use Value: 1 µV/√Hz noise density and +0.090 %/°C tempco enable stable gain control without thermal compensation circuitry. |
| Industrial Control Loop Reference | Medical Imaging Power Supply |
Use Scenario: Providing regulated excitation voltage for strain gauge bridges in oil & gas downhole pressure sensors exposed to 175 °C wellbore temperatures. IC Role / Device Role / Timing Role: High-temperature-stable Zener element in 4–20 mA transmitter feedback path. Use Value: Full –65 °C to +175 °C junction rating allows direct mounting on sensor PCB without external heatsinking. | Use Scenario: Stabilizing high-voltage supply rails in CT scanner detector module power supplies subject to rapid load transients. IC Role / Device Role / Timing Role: Dynamic impedance-limited shunt regulator maintaining 22 V reference during pulsed X-ray generator switching events. Use Value: 150 Ω ZZT ensures <330 mV output deviation under 10 mA step load changes, preserving ADC linearity. |
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 electrical specs but in surface-mount DO-213AA package; no axial leads. | Requires SMT reflow process; unsuitable for through-hole prototyping or high-vibration mechanical retention. | Select when board space is constrained and automated assembly is used. |
| JANTX1N4115-1 | Identical electrical and mechanical specs; differs only in screening level (JANTX vs JAN per MIL-PRF-19500/435). | JANTX includes additional burn-in and parametric testing beyond JAN; higher cost, longer lead time. | Select JANTX only if program requirements mandate extended screening beyond JAN baseline. |
Compared with 1N4115US-1 and JANTX1N4115-1, the JAN1N4115-1 offers optimal balance of MIL-qualified reliability, axial-leaded mechanical robustness, and cost efficiency for through-hole high-reliability power regulation - without requiring layout changes or premium screening.
Availability
JAN1N4115-1 is available at Aetrix Electronics and suitable for aerospace power conditioning, defense system reference, and industrial control loop reference requiring stable component supply across extended temperature and radiation environments.
Supply support for JAN1N4115-1 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 RF solutions for aerospace, defense, and industrial markets.
The JAN1N4115-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for precision voltage regulation in mission-critical systems where long-term stability, radiation tolerance, and extreme temperature operation are mandatory.
FAQ
What is the Zener voltage tolerance for JAN1N4115-1?
The JAN1N4115-1 has a nominal Zener voltage of 22.0 V with a standard tolerance of ±5%, as defined in the JEDEC-registered specification and confirmed in Microsemi's T4-LDS-0245-2 datasheet. This tolerance applies under standard test conditions at 25 °C with 250 mA Zener test current (IZT).
Is JAN1N4115-1 RoHS compliant?
No, JAN1N4115-1 is not RoHS compliant. Per the Microsemi datasheet T4-LDS-0245-2, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade variants, not for JAN-level qualified parts like JAN1N4115-1, which retain traditional tin-lead plating for solderability and reliability in high-reliability applications.
What is the maximum Zener current IZM for JAN1N4115-1?
The maximum Zener current IZM for JAN1N4115-1 is 40 mA, as specified in the Electrical Characteristics table on page 3 of the T4-LDS-0245-2 datasheet. This value corresponds to the current at which the device reaches its rated 500 mW power dissipation limit at 25 °C lead temperature.
Does JAN1N4115-1 have a specified noise density?
Yes, JAN1N4115-1 has a specified noise density of 1 µV/√Hz, consistent with Zener diodes below 6.8 V. This value is documented in the "Maximum Noise Density ND @ IZT" column of the Electrical Characteristics table and reflects measurement in the 1 kHz–3 kHz band at 25 °C ambient.
What is the thermal resistance junction-to-lead for JAN1N4115-1?
The thermal resistance junction-to-lead (RθJL) for JAN1N4115-1 is 250 °C/W, measured with 3/8″ (10 mm) lead length from the body, as stated in the Maximum Ratings table on page 1 of the T4-LDS-0245-2 datasheet. This parameter governs heat transfer path in through-hole mounted configurations.
JAN1N4115-1 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):
- 22 V
- Tolerance:
- ±5%
- Power - Max:
- -
- 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)
JAN1N4115-1 FAQ
1.How can I place an order for JAN1N4115-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4115-1 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 JAN1N4115-1 reliable?
The price and inventory of JAN1N4115-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4115-1 is usually 5 days.
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Once your JAN1N4115-1 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 JAN1N4115-1?
For technical support, including JAN1N4115-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4115-1 requirements.
6.How does Aetrix verify that JAN1N4115-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4115-1 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 JAN1N4115-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4115-1?
All JAN1N4115-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4115-1, 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 JAN1N4115-1 part is unused and in its original packaging.
Return procedure for JAN1N4115-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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