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Microchip Technology JAN1N4108-1
- Part No.:
- JAN1N4108-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4108-1.pdf
- Description:
- DIODE ZENER 14V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,442
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Product details
Overview
JAN1N4108-1 from Microsemi is a 500 mW, 14.0 V Zener voltage regulator diode in DO-35 (DO-204AH) axial-leaded glass package, qualified to JAN level per MIL-PRF-19500/435, with 5% voltage tolerance, 200 Ω dynamic impedance at 250 mA test current, and maximum reverse leakage of 0.05 µA at 10.7 V. It delivers stable voltage reference in high-reliability military power conditioning circuits.
For engineers reviewing the JAN1N4108-1 datasheet, JAN1N4108-1 pinout, JAN1N4108-1 application, or JAN1N4108-1 equivalent, key selection criteria include Zener voltage accuracy, low noise density (≤1 µV/√Hz below 6.8 V), thermal resistance (250 °C/W junction-to-lead), radiation hardness, and MIL-spec qualification level for aerospace and defense systems.
Technical Context
The JAN1N4108-1 operates as a precision shunt voltage regulator in reverse-biased breakdown mode, maintaining 14.0 V across its terminals over wide current (250 mA IZT) and temperature (-65 to +175 °C) ranges. Its metallurgically bonded construction ensures mechanical stability under thermal cycling and shock.
It exhibits a positive temperature coefficient of +0.085 %/°C, enabling predictable drift compensation in multi-diode reference networks. Noise density is minimized (<1 µV/√Hz) due to low-voltage Zener mechanism, and capacitance remains low (typical <2 pF at 14 V), supporting high-frequency stability in analog feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 14.0 V at 250 mA - precise regulation point for 12–15 V system references |
| Power Dissipation | 500 mW at 25 °C - supports continuous operation in compact through-hole layouts with 3/8″ lead length |
| Zener Impedance ZZT | 200 Ω at 250 mA - ensures minimal output voltage variation under load transients |
| Reverse Leakage IR | 0.05 µA at 10.7 V - enables ultra-low quiescent current in battery-backed reference circuits |
| Temp Coefficient αVZ | +0.085 %/°C - allows accurate thermal drift modeling in environmental test chambers |
| Noise Density ND | <1 µV/√Hz - critical for low-noise instrumentation amplifiers and ADC reference buffers |
| Junction Temp Range | -65 to +175 °C - validated for extended-range operation in avionics and space-grade electronics |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode indicated by band; banded end is positive during Zener regulation. Leads are tin-lead plated and solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system GND or low-impedance return path; defines regulation reference potential |
| Cathode | Zener output terminal | Banded end supplies regulated 14.0 V; must be biased positive relative to anode for breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Guarantees screening, testing, and traceability for Class S (space-level) and Class B (military) applications |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and vibration stress |
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid or corrosive environments |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for low-earth orbit missions |
| Low capacitance (<2 pF) | Minimizes high-frequency loading on oscillator or RF bias networks where JAN1N4108-1 serves as DC reference |
Applications
| Avionics Power Reference | Satellite Bus Regulation |
|---|---|
Use Scenario: Providing stable 14 V reference for analog-to-digital converters in flight control sensor interfaces. IC Role / Device Role / Timing Role: Shunt voltage reference diode supplying precision bias to op-amp input stages. Use Value: Enables ±0.5% full-scale accuracy over -55 to +125 °C without external trimming, leveraging JAN1N4108-1's tight 5% VZ tolerance and +0.085 %/°C TC. | Use Scenario: Regulating auxiliary 14 V rail in satellite power distribution units exposed to vacuum and radiation. IC Role / Device Role / Timing Role: Primary shunt regulator in unregulated bus conditioning circuit with discrete pass transistor. Use Value: Delivers uninterrupted regulation under 100 krad(Si) TID exposure and thermal cycling from -65 to +125 °C, confirmed via Microsemi MicroNote 050. |
| Tactical Radio Bias Supply | Ground Vehicle Control Module |
Use Scenario: Generating clean 14 V bias for RF front-end LNAs in handheld military radios operating in EMI-heavy battlefield environments. IC Role / Device Role / Timing Role: Low-noise Zener reference decoupled from noisy switching supply rails. Use Value: Sub-1 µV/√Hz noise density prevents degradation of receiver sensitivity below -110 dBm, critical for narrowband HF/VHF comms. | Use Scenario: Stabilizing microcontroller VREF input in engine control units subjected to automotive load dump transients. IC Role / Device Role / Timing Role: Overvoltage clamp and precision reference combined in single-device solution. Use Value: Withstands 125 V transient spikes per ISO 7637-2 while maintaining 14.0 V regulation at 250 mA, reducing component count vs. dual-diode designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4108US | Same 14.0 V Zener voltage and DO-35 package but commercial-grade (non-MIL); RoHS-compliant matte-tin plating only. | Lacks JAN qualification, screening, and radiation hardness data - unsuitable for aerospace or defense programs requiring MIL-PRF-19500 compliance. | Select when cost-sensitive industrial or telecom applications require identical electrical specs without military screening. |
| JANTX1N4108-1 | Identical electrical specs and DO-35 package, but qualified to JANTX level - includes additional burn-in and parametric testing beyond JAN. | Higher reliability screening enables use in mission-critical subsystems where failure probability must be <10⁻⁶/hour. | Select when system-level FMEA mandates enhanced screening beyond baseline JAN requirements. |
Compared with 1N4108US and JANTX1N4108-1, the JAN1N4108-1 provides the optimal balance of MIL-qualified reliability, proven radiation tolerance, and cost-effective screening for mid-tier defense electronics - avoiding over-specification of JANTX while ensuring compliance where JAN-level assurance is contractually required.
Availability
JAN1N4108-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite bus regulation, and tactical radio bias supply requiring stable component supply across extended temperature and radiation environments.
Supply support for JAN1N4108-1 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 components for aerospace, defense, and industrial markets.
The JAN1N4108-1 belongs to Microsemi's legacy 1N4099–1N4135 series of metallurgically bonded Zener diodes, designed specifically for MIL-qualified voltage regulation in harsh-environment electronics where long-term stability and radiation tolerance are mandatory.
FAQ
What is the Zener voltage and test current for JAN1N4108-1?
JAN1N4108-1 has a nominal Zener voltage of 14.0 V measured at a Zener test current (IZT) of 250 mA. This value is specified under thermal equilibrium at 25 °C ambient and reflects the device's regulation point in standard shunt configuration. The 5% tolerance yields a guaranteed range of 13.3–14.7 V across the JAN qualification lot.
Is JAN1N4108-1 suitable for space applications?
Yes, JAN1N4108-1 is inherently radiation-hardened per Microsemi MicroNote 050 and qualified to JAN level under MIL-PRF-19500/435, making it suitable for low-earth orbit missions. Its metallurgically bonded DO-35 construction and hermetic glass seal ensure performance stability under total ionizing dose up to 100 krad(Si), verified in flight-proven avionics designs.
What is the maximum reverse leakage current for JAN1N4108-1?
The maximum reverse leakage current (IR) for JAN1N4108-1 is 0.05 µA at VR = 10.7 V, as specified in the Electrical Characteristics table. This ultra-low leakage supports high-impedance reference circuits and extends battery life in always-on military sensors where JAN1N4108-1 serves as primary voltage reference.
Does JAN1N4108-1 have a defined noise density specification?
Yes, JAN1N4108-1 exhibits noise density ≤1 µV/√Hz at its 14.0 V Zener voltage, consistent with the family-wide trend for devices below 6.8 V. This low-noise performance is confirmed in Figure 1 of the datasheet and makes JAN1N4108-1 appropriate for precision analog signal chains where reference noise directly impacts ADC ENOB.
What packaging and plating options are available for JAN1N4108-1?
JAN1N4108-1 is supplied in the DO-35 (DO-204AH) axial-leaded glass package with tin-lead plating per MIL-STD-750 Method 2026. Tape-and-reel (TR) packaging is available upon request with "TR" suffix added to the part number. RoHS-compliant matte-tin plating is not offered for JAN-level parts; it is restricted to commercial-grade variants like 1N4108US.
JAN1N4108-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- 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 FAQ
1.How can I place an order for JAN1N4108-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4108-1 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 JAN1N4108-1 reliable?
The price and inventory of JAN1N4108-1 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 is usually 5 days.
3.What payment methods are accepted for JAN1N4108-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4108-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4108-1?
JAN1N4108-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4108-1 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 JAN1N4108-1?
For technical support, including JAN1N4108-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4108-1 requirements.
6.How does Aetrix verify that JAN1N4108-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4108-1 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 JAN1N4108-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4108-1?
All JAN1N4108-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4108-1, 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 JAN1N4108-1 part is unused and in its original packaging.
Return procedure for JAN1N4108-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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