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Microchip Technology JANTX1N4108-1
- Part No.:
- JANTX1N4108-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4108-1.pdf
- Description:
- DIODE ZENER 14V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:286
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Product details
Overview
JANTX1N4108-1 from Microsemi is a 500 mW, 14.0 V Zener diode in DO-35 glass package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability voltage regulation. It delivers 250 mA test current, 200 Ω dynamic impedance at IZT, and +0.085 %/°C temperature coefficient, used in precision reference and power supply feedback circuits.
For engineers reviewing the JANTX1N4108-1 datasheet, JANTX1N4108-1 pinout, JANTX1N4108-1 application, or JANTX1N4108-1 equivalent, key selection criteria include Zener voltage tolerance (±5%), low noise density (≤1 µV/√Hz), thermal resistance (250 °C/W junction-to-lead), and hermetic DO-35 packaging for aerospace and defense systems.
Technical Context
This device operates as a reverse-biased voltage regulator with metallurgically bonded construction ensuring stable breakdown characteristics across -65 °C to +175 °C. Its 250 mA Zener test current and 200 Ω dynamic impedance at IZT support tight regulation under varying load conditions.
The +0.085 %/°C temperature coefficient and ≤0.05 µA reverse leakage at 11.2 V enable predictable drift compensation in analog references. Noise density remains ≤1 µV/√Hz below 6.8 V, confirming suitability for low-noise bandgap and sensor biasing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 14.0 V at 250 mA - precise regulation point for 12–15 V rail monitoring and feedback loops |
| Power Dissipation | 500 mW - supports continuous operation up to 25 °C ambient before linear derating begins |
| Dynamic Impedance ZZT | 200 Ω at 250 mA - ensures minimal output voltage shift under load transients |
| Reverse Leakage IR | ≤0.05 µA at 11.2 V - enables ultra-low standby current in battery-backed references |
| Temp Coefficient αVZ | +0.085 %/°C - allows predictable drift modeling for temperature-compensated designs |
| Noise Density ND | ≤1 µV/√Hz - critical for low-noise analog signal conditioning and precision ADC references |
| Junction Temp Range | -65 to +175 °C - validated for extended-temperature military and avionics environments |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; banded end is positive during Zener regulation. Hermetically sealed, tin-lead plated leads solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference | Connected to circuit ground or lower potential node in shunt regulation topology |
| Cathode | Zener breakdown terminal / regulation output | Connected to regulated voltage node; banded end must be held at higher potential than anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for aerospace, defense, and space-grade programs requiring traceable screening |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| Hermetic DO-35 glass package | Prevents moisture ingress and long-term parameter drift in humid or corrosive environments |
| Low noise density ≤1 µV/√Hz | Enables use in high-resolution sensor excitation and precision voltage reference circuits |
| Non-ESD-sensitive per MIL-STD-750 method 1020 | Reduces handling precautions and eliminates need for ESD-protected assembly lines |
Applications
| Aerospace Power Monitoring | Defense System Reference |
|---|---|
Use Scenario: Real-time monitoring of 12 V aircraft bus voltage with fault detection logic. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable 14.0 V threshold for comparator input. Use Value: JANTX1N4108-1's ±5% tolerance and +0.085 %/°C coefficient ensure consistent trip point across -55 °C to +125 °C operational range. | Use Scenario: Precision biasing of op-amps in radar receiver front-end analog chains. IC Role / Device Role / Timing Role: Low-noise voltage reference supplying stable DC offset to RF amplifiers. Use Value: JANTX1N4108-1's ≤1 µV/√Hz noise density prevents signal-to-noise degradation in sub-100 nV sensitivity receivers. |
| Industrial Control Loop Feedback | Satellite Onboard Regulator |
Use Scenario: Closed-loop feedback for isolated DC-DC converter regulating 13.8 V output. IC Role / Device Role / Timing Role: Zener-based error amplifier reference in optocoupler-isolated feedback path. Use Value: JANTX1N4108-1's 200 Ω ZZT minimizes regulation error under 10–200 mA load variation, improving line/load regulation to ±0.5%. | Use Scenario: Radiation-tolerant voltage reference in satellite power management unit. IC Role / Device Role / Timing Role: Primary shunt regulator for telemetry subsystem power rail stabilization. Use Value: JANTX1N4108-1's inherent radiation hardness per MicroNote 050 eliminates need for shielding or redundancy in LEO missions. |
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, but commercial-grade (non-mil-qualified); DO-213AA surface-mount package | Lacks JANTX screening and hermetic glass seal; unsuitable for extended-temperature or high-reliability deployments | Select only for cost-sensitive, non-mission-critical PCBs where reflow compatibility is required |
| JAN1N4108-1 | Identical electrical specs and DO-35 package, but qualified only to JAN level (lower screening rigor than JANTX) | Reduced burn-in and environmental test coverage; not approved for Class H or Class K programs | Acceptable for legacy systems with JAN-level procurement requirements, but not for new JANTX-designated designs |
Compared with JANTX1N4108-1, 1N4108US trades military reliability for SMT manufacturability, while JAN1N4108-1 reduces qualification depth without altering performance-making JANTX1N4108-1 the sole choice for new designs requiring full MIL-PRF-19500/435 compliance.
Availability
JANTX1N4108-1 is available at Aetrix Electronics and suitable for aerospace power monitoring, defense system reference, and industrial control loop feedback requiring stable component supply with full traceability and mil-spec documentation.
Supply support for JANTX1N4108-1 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) designs high-reliability semiconductors for aerospace, defense, and industrial markets, emphasizing radiation tolerance, extended temperature operation, and mil-spec qualification.
JANTX1N4108-1 belongs to the 1N4099–1N4135-1 family of metallurgically bonded Zener diodes engineered specifically for precision voltage regulation in mission-critical analog and power systems.
FAQ
What is the Zener voltage tolerance for JANTX1N4108-1?
JANTX1N4108-1 has a nominal Zener voltage of 14.0 V with a standard tolerance of ±5%, as defined in the JEDEC-registered specification and confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This tolerance applies under thermal equilibrium at 25 °C with 250 mA test current.
Is JANTX1N4108-1 RoHS compliant?
No, JANTX1N4108-1 is not RoHS compliant. Per the nomenclature guide on page 2 of T4-LDS-0245-2 Rev. 1, the "e3" suffix denotes RoHS compliance, which is available only on commercial-grade versions-not on JANTX-level parts like JANTX1N4108-1.
What is the maximum Zener current IZM for JANTX1N4108-1?
The maximum Zener current IZM for JANTX1N4108-1 is 40 mA, as specified in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This value corresponds to the rated average power dissipation of 500 mW at 14.0 V, assuming ideal thermal conditions.
Does JANTX1N4108-1 have radiation-hardened characteristics?
Yes, JANTX1N4108-1 is inherently radiation hard, as documented in Microsemi MicroNote 050 referenced in the Applications/Benefits section of T4-LDS-0245-2 Rev. 1. This property stems from its metallurgically bonded construction and DO-35 hermetic packaging, not added process hardening.
What is the thermal resistance junction-to-lead for JANTX1N4108-1?
The thermal resistance junction-to-lead (RθJL) for JANTX1N4108-1 is 250 °C/W, measured with 3/8 inch (10 mm) lead length from the body, as stated in the Maximum Ratings table on page 1 of T4-LDS-0245-2 Rev. 1. This value assumes standard mounting per JEDEC guidelines.
JANTX1N4108-1 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):
- 14 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- 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)
JANTX1N4108-1 FAQ
1.How can I place an order for JANTX1N4108-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4108-1 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 JANTX1N4108-1 reliable?
The price and inventory of JANTX1N4108-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4108-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4108-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4108-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4108-1?
JANTX1N4108-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4108-1 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 JANTX1N4108-1?
For technical support, including JANTX1N4108-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4108-1 requirements.
6.How does Aetrix verify that JANTX1N4108-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4108-1 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 JANTX1N4108-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4108-1?
All JANTX1N4108-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4108-1, 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 JANTX1N4108-1 part is unused and in its original packaging.
Return procedure for JANTX1N4108-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4108-1 Tags
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Diodes Incorporated
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