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Microchip Technology JAN1N4108-1/TR
- Part No.:
- JAN1N4108-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4108-1/TR.pdf
- Description:
- DIODE ZENER 14V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,142
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Product details
Overview
JAN1N4108-1/TR from Microsemi is a 500 mW, 14.0 V Zener voltage regulator diode in DO-35 (DO-204AH) axial-glass package, qualified to JAN reliability level per MIL-PRF-19500/435. It delivers ±5% Zener tolerance, 250 mA test current, 200 Ω dynamic impedance at IZT, and operates across –65 °C to +175 °C junction temperature for precision voltage reference in military-grade power supplies.
For engineers reviewing the JAN1N4108-1/TR datasheet, JAN1N4108-1/TR pinout, JAN1N4108-1/TR application, or JAN1N4108-1/TR equivalent, key selection criteria include its 14.0 V nominal Zener voltage, 200 Ω Zener impedance at 250 mA, 0.05 µA max reverse leakage at 10.7 V, radiation-hardened construction, and hermetically sealed glass package suitable for high-reliability analog regulation and reference circuits.
Technical Context
This device functions as a two-terminal, reverse-biased Zener regulator with metallurgically bonded junction for low noise and stable breakdown. Its 14.0 V nominal Zener voltage is specified at 250 mA test current (IZT), with dynamic impedance measured at 200 Ω using 10% rms ac modulation superimposed on IZT.
The JAN1N4108-1/TR exhibits a positive temperature coefficient of +0.085 %/°C, enabling predictable drift compensation in temperature-stable references. It is rated for 500 mW average power dissipation at 25 °C lead temperature, derating linearly to zero at 175 °C, and supports soldering up to 260 °C for 10 seconds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage (VZ) | 14.0 V at 250 mA - defines precise regulation point for feedback loops and reference rails |
| Zener Impedance (ZZT) | 200 Ω at 250 mA - determines output voltage stability under load variation |
| Reverse Leakage Current (IR) | 0.05 µA max at 10.7 V - ensures minimal quiescent current in standby mode |
| Power Dissipation (PM(AV)) | 500 mW at 25 °C - sets maximum continuous thermal budget on PCB |
| Junction Temperature Range | –65 °C to +175 °C - enables operation in extreme environmental conditions |
| Temperature Coefficient (αVZ) | +0.085 %/°C - quantifies voltage drift per degree Celsius for thermal design margining |
| Noise Density (ND) | 1 µV/√Hz typical - critical for low-noise analog references and sensor excitation |
Pinout & Package
DO-35 (DO-204AH) axial-leaded, hermetically sealed glass package with cathode band marking. Tin-lead plating, solderable per MIL-STD-750 method 2026. Weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit common or ground when used in standard Zener regulator configuration |
| Cathode | Zener breakdown terminal / regulated output node | Banded end; connected to unregulated input rail; provides stable 14.0 V reference relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Guarantees screening, testing, and traceability for defense/aerospace applications |
| Metallurgical bond construction | Enables low noise density (1 µV/√Hz) and stable long-term Zener voltage |
| Hermetic glass DO-35 package | Provides moisture resistance and reliability in harsh environments without conformal coating |
| Radiation hardness | Inherently resistant to total ionizing dose (TID), supporting space and nuclear applications |
| ESD immunity | Non-sensitive per MIL-STD-750 method 1020 - eliminates need for external ESD protection |
Applications
| Avionics Power Reference | Military Radio Bias Supply |
|---|---|
Use Scenario: Precision 14.0 V reference for ADC/DAC calibration and oscillator biasing in airborne transceivers. IC Role / Device Role / Timing Role: Zener regulator providing stable voltage reference for analog signal chain components. Use Value: ±5% tolerance and +0.085 %/°C TC ensure <±10 mV drift over –55 °C to +125 °C operating range. | Use Scenario: Low-noise bias rail for RF power amplifier stages in handheld tactical radios. IC Role / Device Role / Timing Role: Voltage clamp and reference source for GaAs FET gate bias networks. Use Value: 1 µV/√Hz noise density prevents AM sideband degradation in sensitive receive paths. |
| Satellite Payload Regulator | Nuclear Instrumentation Reference |
Use Scenario: Radiation-tolerant voltage reference for telemetry conditioning circuits in LEO satellites. IC Role / Device Role / Timing Role: Primary Zener reference in isolated DC-DC feedback loop with redundant sensing. Use Value: Inherent radiation hardness eliminates need for shielding or derating in TID >100 krad(Si) environments. | Use Scenario: Stable reference for high-precision gamma spectrometer front-end amplifiers in reactor monitoring systems. IC Role / Device Role / Timing Role: Low-drift Zener element in Wheatstone bridge excitation and offset compensation. Use Value: Metallurgical bond and hermetic seal prevent parameter shift during decades-long field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4108US-1 | Same electrical specs but in DO-213AA surface-mount 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 |
| JANTX1N4108-1 | Identical DO-35 package and electrical parameters; qualified to JANTX level (higher screening than JAN) | Supports longer qualification records and extended lot traceability for mission-critical programs | Select when program requirements mandate JANTX-level documentation and test data |
Compared with JAN1N4108-1/TR, the 1N4108US-1 offers identical regulation performance in a compact SMT form factor, while JANTX1N4108-1 provides enhanced screening rigor-both serve as functionally aligned alternatives where package fit or qualification depth differs.
Availability
JAN1N4108-1/TR is available at Aetrix Electronics and suitable for avionics power reference, military radio bias supply, and satellite payload regulator applications requiring stable component supply, full traceability, and MIL-spec compliance.
Supply support for JAN1N4108-1/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 analog and mixed-signal components.
The JAN1N4108-1/TR belongs to Microsemi's legacy 1N4099–1N4135 family of 500 mW Zener regulators, engineered specifically for military, space, and nuclear instrumentation applications demanding long-term stability and environmental resilience.
FAQ
What is the Zener voltage tolerance for JAN1N4108-1/TR?
The JAN1N4108-1/TR has a nominal Zener voltage of 14.0 V with a standard tolerance of ±5%, as defined by JEDEC registration and verified per MIL-PRF-19500/435 screening. This tolerance applies at 25 °C with the diode in thermal equilibrium and is maintained across the full JAN reliability level qualification.
Does JAN1N4108-1/TR require derating above 25 °C ambient temperature?
Yes, JAN1N4108-1/TR must be derated linearly starting at 25 °C ambient temperature: its 500 mW rated power dissipation decreases to zero at 175 °C. Derating follows a slope of –3.33 mW/°C, ensuring safe operation within thermal limits on standard FR4 PCBs with 1 mm track width and 4 mm² copper pads.
What is the maximum reverse leakage current for JAN1N4108-1/TR?
The maximum reverse leakage current (IR) for JAN1N4108-1/TR is 0.05 µA at VR = 10.7 V, measured at 25 °C. This ultra-low leakage supports high-impedance reference designs and minimizes standby power loss in battery-backed systems.
Is JAN1N4108-1/TR RoHS compliant?
No, JAN1N4108-1/TR is not RoHS compliant. The "JAN" prefix indicates military-grade qualification with tin-lead plating; RoHS-compliant versions (e.g., 1N4108-1e3) exist only in commercial-grade variants and carry the "e3" suffix-not applicable to JAN-level parts.
How is polarity marked on JAN1N4108-1/TR?
Polarity is marked by a visible cathode band on the glass body of JAN1N4108-1/TR. The banded end is the cathode and must be connected to the higher-potential (unregulated) rail; the opposite end is the anode and connects to circuit common or ground in standard Zener regulator configurations.
JAN1N4108-1/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):
- 14 V
- Tolerance:
- ±5%
- Power - Max:
- -
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 10.7 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)
JAN1N4108-1/TR FAQ
1.How can I place an order for JAN1N4108-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4108-1/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 JAN1N4108-1/TR reliable?
The price and inventory of JAN1N4108-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4108-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4108-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4108-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4108-1/TR?
JAN1N4108-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4108-1/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 JAN1N4108-1/TR?
For technical support, including JAN1N4108-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4108-1/TR requirements.
6.How does Aetrix verify that JAN1N4108-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4108-1/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 JAN1N4108-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4108-1/TR?
All JAN1N4108-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4108-1/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 JAN1N4108-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4108-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4108-1/TR Tags
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