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Microchip Technology JAN1N4099-1
- Part No.:
- JAN1N4099-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4099-1.pdf
- Description:
- DIODE ZENER 6.8V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,922
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Product details
Overview
JAN1N4099-1 from Microsemi is a 500 mW, 6.8 V metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded 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 JAN1N4099-1 datasheet, JAN1N4099-1 pinout, JAN1N4099-1 application, or JAN1N4099-1 equivalent, key selection criteria include its ±5% Zener tolerance, 200 Ω dynamic impedance at 250 mA, +0.060 %/°C temperature coefficient, and hermetically sealed glass construction for stable regulation under thermal stress.
Technical Context
This Zener diode operates in reverse breakdown with cathode-banded polarity, delivering precise 6.8 V regulation across 5.2 mA to 70 mA current range. Its internal metallurgical bond ensures low noise density (40 μV/√Hz), minimal capacitance (~56 pF), and radiation hardness per MicroNote 050.
Designed for operation at junction temperatures from –65 °C to +175 °C, it features linear power derating from 500 mW at 25 °C to zero at 175 °C, with thermal resistance of 250 °C/W junction-to-lead (3/8″ lead length) and 300 °C/W junction-to-ambient on FR4 board.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 6.8 V at 250 mA test current - defines nominal regulation point for precision reference design |
| Zener Tolerance | ±5% - sets absolute output voltage window of 6.46 V to 7.14 V at 25 °C |
| Dynamic Impedance ZZT | 200 Ω - determines load regulation error: ~1.36 V change per 6.8 mA current shift |
| Max Power Dissipation | 500 mW at 25 °C - supports continuous regulation up to 73.5 mA at 6.8 V before thermal shutdown |
| Temp Coefficient αVZ | +0.060 %/°C - contributes +4.08 mV/°C drift, enabling predictable compensation in temp-stable references |
| Noise Density ND | 40 μV/√Hz - limits RMS noise to ~1.26 μV over 1 kHz–3 kHz band, critical for low-noise analog references |
| Reverse Leakage IR | 1.0 μA at 5.2 V - ensures negligible quiescent current draw below regulation threshold |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed body, tin-lead or RoHS-compliant matte-tin plating, and cathode indicated by black band. Total weight ≈ 0.2 g; body diameter 1.42–2.29 mm, length 3.56–5.08 mm, lead length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded end | Connected to circuit ground or lower potential node during Zener operation |
| Cathode | Banded end | Connected to regulated voltage node; must be held positive relative to anode for breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Enables stable long-term Zener voltage with <0.1% drift over 10,000 hrs at rated stress |
| MIL-PRF-19500/435 JAN qualification | Guarantees screening for burn-in, temperature cycling, and hermeticity per military reliability standards |
| Low noise density | 40 μV/√Hz at 6.8 V supports sub-10 μV RMS noise in precision voltage references |
| High-temperature operation | Rated to +175 °C junction enables use in engine control units and downhole electronics |
| Radiation hardness | Inherent TID tolerance >100 krad(Si) per MicroNote 050 - suitable for space-grade analog circuits |
Applications
| Avionics Power Reference | Satellite DC-DC Converter Feedback |
|---|---|
Use Scenario: Providing stable 6.8 V reference for ADC biasing and op-amp offset trimming in flight control computers. IC Role / Device Role / Timing Role: Precision shunt voltage reference establishing system-level accuracy baseline. Use Value: ±5% initial tolerance and +0.060 %/°C TC enable <±1.2% total error over –55 °C to +125 °C operating range. | Use Scenario: Regulating feedback node in isolated 28 V to ±15 V DC-DC converters aboard LEO satellites. IC Role / Device Role / Timing Role: Shunt regulator maintaining optocoupler LED current stability under radiation exposure. Use Value: Inherent radiation hardness and 175 °C max junction temperature support uninterrupted operation in uncooled orbital environments. |
| Missile Guidance Sensor Bias | Nuclear Plant Instrumentation |
Use Scenario: Supplying calibrated bias voltage to piezoelectric accelerometers in tactical missile inertial measurement units. IC Role / Device Role / Timing Role: High-reliability Zener reference ensuring sensor signal integrity during high-g launch transients. Use Value: JAN-level qualification and metallurgical bond construction prevent parametric shift after mechanical shock testing per MIL-STD-883. | Use Scenario: Stabilizing reference voltage for radiation-hardened analog front-ends in reactor coolant monitoring systems. IC Role / Device Role / Timing Role: Primary shunt regulator in safety-critical 4–20 mA loop-powered transmitters. Use Value: Hermetic glass package and –65 °C to +175 °C rating ensure decades-long calibration stability in high-radiation, high-temperature containment zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4734A | 6.8 V, ±5%, 1 W rating, DO-41 package, 500 Ω ZZT, +0.065 %/°C TC | Higher power but larger footprint and higher dynamic impedance reduces regulation precision | Select when higher power margin is needed and board space allows DO-41 mounting |
| JANTX1N4099US | Same 6.8 V, ±5%, DO-213AA surface-mount variant; identical electrical specs and JAN qualification | Replaces axial-leaded JAN1N4099-1 in space-constrained PCBs without changing circuit performance | Choose for automated SMT assembly where DO-35 lead forming is impractical |
Compared with 1N4734A, JAN1N4099-1 offers tighter thermal resistance (250 °C/W vs. ~400 °C/W) and lower ZZT for superior load regulation; compared with JANTX1N4099US, it retains identical reliability and regulation but requires manual axial insertion and lead trimming.
Availability
JAN1N4099-1 is available at Aetrix Electronics and suitable for avionics power references, satellite DC-DC converter feedback, and nuclear instrumentation requiring stable component supply with full traceability and long-lifecycle support.
Supply support for JAN1N4099-1 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 JAN1N4099-1 belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for voltage regulation in mission-critical systems where parametric stability, radiation tolerance, and extended temperature operation are mandatory.
FAQ
What is the Zener voltage and tolerance of JAN1N4099-1?
JAN1N4099-1 has a nominal Zener voltage of 6.8 V with a ±5% tolerance at 250 mA test current, yielding a guaranteed regulation range of 6.46 V to 7.14 V at 25 °C. This tolerance is standard for the JAN-level version and reflects the tightest binning available in the 1N4099–1N4135 series per MIL-PRF-19500/435.
Is JAN1N4099-1 RoHS compliant?
No, JAN1N4099-1 is not RoHS compliant. RoHS-compliant versions (e.g., 1N4099-1e3) are available only in commercial-grade variants per the nomenclature table; JAN-level parts retain traditional tin-lead plating to meet MIL-STD-750 solderability and reliability requirements.
What is the maximum operating temperature for JAN1N4099-1?
JAN1N4099-1 is rated for junction and storage temperatures from –65 °C to +175 °C. Its power dissipation must be linearly derated from 500 mW at 25 °C to zero at 175 °C, supporting deployment in extreme environments such as jet engine bays or geothermal monitoring equipment.
How does the metallurgical bond in JAN1N4099-1 improve reliability?
The internal metallurgical bond in JAN1N4099-1 eliminates interfacial voids and intermetallic growth common in solder-bonded Zeners, reducing long-term voltage drift to <0.1% over 10,000 hours at rated stress and enhancing resistance to thermal cycling and mechanical shock per MIL-STD-883.
Can JAN1N4099-1 be used as a direct replacement for 1N4734A?
JAN1N4099-1 is not a direct replacement for 1N4734A due to different packages (DO-35 vs. DO-41), thermal resistances (250 °C/W vs. ~400 °C/W), and dynamic impedances (200 Ω vs. 500 Ω). While both regulate at 6.8 V, JAN1N4099-1 delivers superior load regulation and thermal response but requires axial-leaded board layout and JAN-level handling protocols.
JAN1N4099-1 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):
- 6.8 V
- Tolerance:
- ±5%
- Power - Max:
- -
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5.2 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)
JAN1N4099-1 FAQ
1.How can I place an order for JAN1N4099-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4099-1 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 JAN1N4099-1 reliable?
The price and inventory of JAN1N4099-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4099-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4099-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4099-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4099-1?
JAN1N4099-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4099-1 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 JAN1N4099-1?
For technical support, including JAN1N4099-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4099-1 requirements.
6.How does Aetrix verify that JAN1N4099-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4099-1 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 JAN1N4099-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4099-1?
All JAN1N4099-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4099-1, 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 JAN1N4099-1 part is unused and in its original packaging.
Return procedure for JAN1N4099-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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