Microchip Technology JAN1N4109D-1
- Part No.:
- JAN1N4109D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4109D-1.pdf
- Description:
- DIODE ZENER 15V DO204AH
- Quantity:
- Payment:

- Shipping:

Inventory:9,258
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Product details
Overview
JAN1N4109D-1 from Microsemi is a 15 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense systems. It delivers 15.0 V Zener voltage at 250 mA test current, exhibits 100 Ω dynamic impedance, and maintains stable regulation across -65 °C to +175 °C junction temperature range.
For engineers reviewing the JAN1N4109D-1 datasheet, JAN1N4109D-1 pinout, JAN1N4109D-1 application, or JAN1N4109D-1 equivalent, key selection criteria include its 1% voltage tolerance, JANS qualification, 100 Ω Zener impedance at 250 mA, low noise density (1 µV/√Hz), and hermetically sealed axial-leaded DO-35 package suitable for radiation-hardened and high-temperature environments.
Technical Context
This device operates as a precision shunt voltage regulator with cathode-banded polarity, requiring reverse-bias operation where the banded end is positive relative to the anode. Its metallurgical bond construction ensures mechanical robustness and thermal stability under shock/vibration stress.
It is specified for operation at 250 mA Zener test current (IZT), with maximum reverse leakage of 0.05 µA at 12.0 V (VR), and exhibits a positive temperature coefficient of +0.085 %/°C - enabling predictable drift compensation in temperature-critical bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 15.0 V ±1% at 250 mA - enables precise reference generation with minimal calibration overhead in analog power supplies. |
| Power Dissipation | 500 mW at 25 °C, derated linearly to zero at 175 °C - supports operation in high-temperature avionics enclosures without forced cooling. |
| Zener Impedance ZZT | 100 Ω at 250 mA - ensures tight regulation under varying load currents typical in sensor biasing and op-amp reference circuits. |
| Noise Density ND | 1 µV/√Hz - critical for low-noise analog front-ends in precision instrumentation and RF receiver bias networks. |
| Temp Coefficient αVZ | +0.085 %/°C - allows predictable voltage drift modeling for temperature-compensated reference designs. |
| Reverse Leakage IR | 0.05 µA at 12.0 V - guarantees minimal quiescent current draw in battery-backed or ultra-low-power standby circuits. |
| Junction Temp Range | -65 °C to +175 °C - validated for deployment in space-grade electronics and engine-mounted control units. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction; cathode indicated by single black band; tin-lead or RoHS-compliant matte-tin plating; weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to system ground or lowest potential point in shunt regulator topology. |
| Cathode (banded end) | Zener regulation node | Connected to input supply rail; regulates voltage by sinking excess current when VIN exceeds 15.0 V. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated for Class S (space-level) reliability including radiation hardness, burn-in, and lot acceptance testing. |
| Metallurgical bond construction | Eliminates wire-bond fatigue failure modes, ensuring long-term stability under thermal cycling and mechanical vibration. |
| 1% Zener voltage tolerance (D suffix) | Reduces need for post-assembly trimming in precision voltage references and ADC/DAC bias networks. |
| Low capacitance (typ. <2 pF) | Minimizes signal coupling and phase shift in high-frequency bias paths and RF detector circuits. |
| Non-ESD-sensitive per MIL-STD-750 Method 1020 | Enables handling and assembly without ESD protection infrastructure in controlled manufacturing environments. |
Applications
| Aerospace Power Conditioning | Defense System Reference Biasing |
|---|---|
Use Scenario: Regulating +15 V supply rails in satellite power management units exposed to wide thermal swings and radiation. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable bias for DC-DC controller ICs and telemetry amplifiers. Use Value: JANS qualification and -65 °C to +175 °C operation ensure uninterrupted regulation during orbital thermal cycling and launch vibration. | Use Scenario: Generating precision 15 V reference for analog-to-digital converters in radar front-end receivers. IC Role / Device Role / Timing Role: Low-noise voltage reference source for ADC reference inputs and op-amp biasing. Use Value: 1 µV/√Hz noise density and 100 Ω dynamic impedance maintain SNR integrity in 16-bit+ data acquisition systems. |
| Avionics Sensor Signal Conditioning | Nuclear Instrumentation Bias Networks |
Use Scenario: Providing regulated excitation voltage for strain gauge bridges and RTD interfaces in flight control sensors. IC Role / Device Role / Timing Role: Stable excitation source ensuring measurement linearity and repeatability across environmental extremes. Use Value: +0.085 %/°C tempco allows predictable compensation in closed-loop calibration algorithms. | Use Scenario: Supplying bias voltage to photomultiplier tube (PMT) dynode chains in radiation detection equipment. IC Role / Device Role / Timing Role: High-reliability shunt regulator maintaining constant dynode voltage despite supply ripple and aging effects. Use Value: Hermetic DO-35 package and metallurgical bond prevent parameter drift in high-radiation, high-humidity environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4109D-1 | Same electrical specs; qualified to JANTXV (not JANS); lower screening rigor and no radiation hardness validation. | Suitable for ground-based military systems where full space-level qualification is not required. | Select when cost and lead time are prioritized over radiation tolerance and extended life testing. |
| 1N4109UR-1 | Same 15 V/1% spec in DO-213AA surface-mount package; no MIL-qualification; commercial-only RoHS compliance. | Used in high-volume industrial controls where automated SMT assembly and reflow compatibility are mandatory. | Select for PCB space-constrained designs requiring automated placement, accepting reduced reliability assurance. |
Compared with JAN1N4109D-1, JANTXV1N4109D-1 offers identical regulation performance with relaxed screening, while 1N4109UR-1 trades hermeticity and qualification for SMT manufacturability - making JAN1N4109D-1 the sole choice for mission-critical radiation-hardened applications.
Availability
JAN1N4109D-1 is available at Aetrix Electronics and suitable for aerospace power conditioning, defense system reference biasing, and avionics sensor signal conditioning requiring stable component supply across extended temperature ranges and high-reliability screening.
Supply support for JAN1N4109D-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.
JAN1N4109D-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for voltage regulation in mission-critical systems where radiation hardness, thermal resilience, and long-term parametric stability are non-negotiable.
FAQ
What is the Zener voltage tolerance of JAN1N4109D-1?
JAN1N4109D-1 has a nominal Zener voltage of 15.0 V with ±1% tolerance, indicated by the "D" suffix in the part number. This tight tolerance eliminates the need for post-production calibration in precision reference applications and ensures consistent performance across production lots without binning.
Is JAN1N4109D-1 qualified for space applications?
Yes, JAN1N4109D-1 is qualified to JANS level per MIL-PRF-19500/435, which includes radiation hardness assurance, extended burn-in, and lot acceptance testing required for Class S space applications. Its metallurgical bond construction and hermetic DO-35 package further validate its suitability for satellite and launch vehicle electronics.
What is the maximum reverse leakage current for JAN1N4109D-1?
JAN1N4109D-1 specifies a maximum reverse leakage current (IR) of 0.05 µA at 12.0 V reverse voltage (VR). This ultra-low leakage supports energy-efficient operation in battery-powered or standby-mode systems where quiescent current must remain below 100 nA.
Does JAN1N4109D-1 require special handling for ESD sensitivity?
No, JAN1N4109D-1 is non-sensitive to ESD per MIL-STD-750 Method 1020. It can be handled and assembled in standard manufacturing environments without dedicated ESD protection infrastructure, reducing process complexity in high-reliability production lines.
What is the thermal resistance junction-to-lead for JAN1N4109D-1?
JAN1N4109D-1 has a thermal resistance junction-to-lead (RθJL) of 250 °C/W when measured with 3/8 inch (10 mm) lead length from the body. This value enables accurate thermal modeling for board-level heat dissipation in conduction-cooled avionics modules.
JAN1N4109D-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):
- 15 V
- Tolerance:
- ±1%
- Power - Max:
- -
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.4 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)
JAN1N4109D-1 FAQ
1.How can I place an order for JAN1N4109D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4109D-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 JAN1N4109D-1 reliable?
The price and inventory of JAN1N4109D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4109D-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4109D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4109D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4109D-1?
JAN1N4109D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4109D-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 JAN1N4109D-1?
For technical support, including JAN1N4109D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4109D-1 requirements.
6.How does Aetrix verify that JAN1N4109D-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4109D-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 JAN1N4109D-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4109D-1?
All JAN1N4109D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4109D-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 JAN1N4109D-1 part is unused and in its original packaging.
Return procedure for JAN1N4109D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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