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Microchip Technology JAN1N4108D-1
- Part No.:
- JAN1N4108D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4108D-1.pdf
- Description:
- DIODE ZENER 14V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,370
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Product details
Overview
JAN1N4108D-1 from Microsemi is a 14.0 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JAN level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JAN1N4108D-1 datasheet, JAN1N4108D-1 pinout, JAN1N4108D-1 application, or JAN1N4108D-1 equivalent, key selection factors include its 1% Zener voltage tolerance, 200 Ω dynamic impedance at 250 mA test current, -65 °C to +175 °C operating temperature range, and hermetically sealed axial-leaded construction for stable regulation under thermal stress.
Technical Context
This device operates as a precision shunt voltage regulator with cathode-banded polarity, requiring reverse bias (banded end positive) to enter breakdown. Its metallurgical bond ensures low noise density (1 µV/√Hz typical at 14 V) and radiation hardness per MicroNote 050.
It delivers stable regulation across wide current ranges (IZK to IZM = 10.7 mA to 40 mA), with temperature coefficient of +0.085 %/°C and junction-to-lead thermal resistance of 250 °C/W when mounted with 10 mm lead length - critical for thermal management in sealed military enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 14.0 V ±1% at 250 mA - enables precise reference generation in analog power monitoring circuits. |
| Power Dissipation | 500 mW at 25 °C, derated linearly to zero at 175 °C - supports operation in high-temperature avionics bays without forced cooling. |
| Dynamic Impedance ZZT | 200 Ω at IZT = 250 mA - ensures minimal output voltage variation under load transients in regulated DC-DC feedback paths. |
| Reverse Leakage IR | ≤0.05 µA at VR = 11.2 V - guarantees low quiescent current in battery-backed reference circuits. |
| Temp Coefficient αVZ | +0.085 %/°C - allows predictable drift compensation in temperature-stable voltage references. |
| Noise Density ND | 1 µV/√Hz at 14 V - supports low-noise analog signal conditioning where reference stability affects ADC accuracy. |
| Junction Temp Range | -65 °C to +175 °C - validated for operation in space-grade and missile guidance systems with extreme thermal cycling. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed body, tin-lead plating, and cathode indicated by black band. Weight ≈0.2 g; body diameter 1.42–2.29 mm, length 3.56–5.08 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to system ground or common return; must be held at lower potential than cathode during regulation. |
| Cathode (banded end) | Zener regulation terminal | Connected to unregulated input; reverse bias establishes stable 14.0 V reference at this node relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Validated reliability for mission-critical applications including launch vehicle power sequencing and radar bias supplies. |
| 1% Zener voltage tolerance | Reduces calibration overhead in precision voltage monitors used in flight control sensor interfaces. |
| Metallurgical bond construction | Enables inherent radiation hardness (per MicroNote 050) and long-term parameter stability in neutron-rich environments. |
| Low noise density (1 µV/√Hz) | Minimizes voltage reference jitter in analog-to-digital converters for telemetry signal acquisition. |
| Hermetic glass DO-35 package | Prevents moisture ingress and parameter shift over 20+ year service life in sealed military chassis. |
Applications
| Avionics Power Monitoring | Missile Guidance Bias Supply |
|---|---|
Use Scenario: Real-time detection of 28 V DC bus undervoltage/overvoltage in aircraft electrical distribution units. IC Role / Device Role / Timing Role: Shunt reference element in comparator-based threshold detector circuit. Use Value: 1% VZ tolerance ensures trip point accuracy within ±0.14 V, meeting DO-160 Section 16 surge immunity requirements. | Use Scenario: Stable bias voltage for RF power amplifier stages in seeker transmitter modules. IC Role / Device Role / Timing Role: Zener-regulated supply rail for GaAs FET gate bias networks. Use Value: -65 °C to +175 °C operation supports cold-soak launch and aerodynamic heating without regulation loss. |
| Satellite Payload Reference | Nuclear Command & Control Interface |
Use Scenario: Primary voltage reference for ADCs measuring solar array current in LEO satellites. IC Role / Device Role / Timing Role: Low-noise shunt regulator feeding precision op-amp buffer stage. Use Value: 1 µV/√Hz noise density prevents degradation of 16-bit ADC ENOB in telemetry subsystems. | Use Scenario: Isolated logic-level translation between hardened microcontrollers and relay drivers in secure comms vaults. IC Role / Device Role / Timing Role: Zener-clamped interface protection on RS-485 data lines. Use Value: JANS-qualified radiation hardness ensures no single-event latchup during electromagnetic pulse (EMP) exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4108US-1 | Same 14.0 V, 1% spec but in DO-213AA surface-mount package; no axial leads. | Requires PCB rework for SMT assembly; unsuitable for through-hole prototyping or wire-wrap testing. | Select when automated pick-and-place and board space constraints outweigh manual assembly needs. |
| JANTXV1N4108D | Identical electrical specs and DO-35 package, but qualified to JANTXV level (higher screening, tighter lot controls). | Approved for Class H (100% burn-in, extended environmental testing) in strategic systems where JAN is insufficient. | Select when program requirements mandate JANTXV-level reliability documentation and traceability. |
Compared with JAN1N4108D-1, 1N4108US-1 offers footprint reduction at the cost of mechanical mounting flexibility, while JANTXV1N4108D provides enhanced process controls for programs requiring higher confidence in parametric consistency across production lots.
Availability
JAN1N4108D-1 is available at Aetrix Electronics and suitable for avionics power monitoring, missile guidance bias supply, and satellite payload reference applications requiring stable component supply with full MIL-PRF-19500 traceability.
Supply support for JAN1N4108D-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 analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The JAN1N4108D-1 belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for voltage regulation in harsh-environment electronics where long-term stability and radiation tolerance are mandatory.
FAQ
What is the Zener voltage tolerance of JAN1N4108D-1?
JAN1N4108D-1 has a nominal Zener voltage of 14.0 V with ±1% tolerance, confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This tight tolerance is achieved via post-package sorting and is maintained across the full -65 °C to +175 °C operating range, making JAN1N4108D-1 suitable for precision reference applications where calibration drift must be minimized.
Is JAN1N4108D-1 RoHS compliant?
No, JAN1N4108D-1 is not RoHS compliant. Per the nomenclature table on page 2 of T4-LDS-0245-2 Rev. 1, the "e3" suffix denotes RoHS compliance, which is only available on commercial-grade versions. The JAN prefix indicates military qualification, and JAN1N4108D-1 uses standard tin-lead plating per MIL-STD-750 method 2026, not RoHS-compliant matte tin.
What is the maximum Zener test current IZT for JAN1N4108D-1?
The maximum Zener test current IZT for JAN1N4108D-1 is 250 mA, as specified in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This current defines the operating point at which VZ = 14.0 V and ZZT = 200 Ω are measured, and it aligns with the device's 500 mW power rating at 25 °C ambient temperature.
How does the temperature coefficient affect JAN1N4108D-1 in high-temp environments?
JAN1N4108D-1 has a temperature coefficient αVZ of +0.085 %/°C, meaning its Zener voltage increases by approximately 11.9 mV per °C rise above 25 °C. At +125 °C, VZ rises to ~15.2 V - a deviation that must be accounted for in closed-loop feedback designs. This predictable positive drift is leveraged in temperature-compensated reference circuits using complementary coefficients.
Can JAN1N4108D-1 be used in surface-mount designs?
No, JAN1N4108D-1 is packaged exclusively in the axial-leaded DO-35 (DO-204AH) glass case and is not suitable for surface-mount assembly. For SMT equivalents, Microsemi offers the 1N4108US-1 in DO-213AA package - same electrical specs but different mechanical form factor. Substituting JAN1N4108D-1 into an SMT layout would require mechanical adaptation and is not recommended.
JAN1N4108D-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:
- ±1%
- 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)
JAN1N4108D-1 FAQ
1.How can I place an order for JAN1N4108D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4108D-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 JAN1N4108D-1 reliable?
The price and inventory of JAN1N4108D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4108D-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4108D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4108D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4108D-1?
JAN1N4108D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4108D-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 JAN1N4108D-1?
For technical support, including JAN1N4108D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4108D-1 requirements.
6.How does Aetrix verify that JAN1N4108D-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4108D-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 JAN1N4108D-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4108D-1?
All JAN1N4108D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4108D-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 JAN1N4108D-1 part is unused and in its original packaging.
Return procedure for JAN1N4108D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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