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Microchip Technology JANTXV1N4099D-1
- Part No.:
- JANTXV1N4099D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4099D-1.pdf
- Description:
- DIODE ZENER 6.8V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,388
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Product details
Overview
JANTXV1N4099D-1 from Microsemi is a 500 mW, 6.8 V ±1% tolerance metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to MIL-PRF-19500/435 JANTXV level for high-reliability applications. It delivers stable voltage regulation with 200 Ω dynamic impedance at 250 mA test current, 5.2 mA maximum Zener current, and +0.060 %/°C temperature coefficient.
For engineers reviewing the JANTXV1N4099D-1 datasheet, JANTXV1N4099D-1 pinout, JANTXV1N4099D-1 application, or JANTXV1N4099D-1 equivalent, key selection criteria include its 1% Zener voltage tolerance, hermetic glass package, military-grade reliability qualification, low noise density (40 µV/√Hz), and thermal resistance of 250 °C/W junction-to-lead.
Technical Context
This device operates as a precision shunt voltage regulator in reverse-biased breakdown mode, with cathode band marking polarity. Its metallurgical bond construction ensures mechanical stability under thermal cycling and shock, critical for aerospace and defense systems.
It exhibits a positive temperature coefficient (+0.060 %/°C) above 6 V, enabling predictable drift compensation in reference circuits. The 250 mA Zener test current and 200 Ω dynamic impedance at that point define its regulation linearity and load transient response capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 6.8 V ±1% at 250 mA - enables precise 6.8 V reference generation with tight initial accuracy |
| Power Dissipation | 500 mW @ TC = 25 °C - supports stable operation in compact through-hole layouts with defined derating curve |
| Dynamic Impedance ZZT | 200 Ω @ IZT = 250 mA - determines output voltage variation under load current changes |
| Max Zener Current IZM | 5.2 mA - sets absolute upper limit for continuous DC regulation current before thermal runaway |
| Temp Coefficient αVZ | +0.060 %/°C - quantifies voltage drift per degree Celsius rise, critical for temperature-stable references |
| Noise Density ND | 40 µV/√Hz @ IZT - defines broadband RMS noise contribution in low-noise analog references |
| Junction Temp Range | –65 to +175 °C - validates suitability for extreme-environment avionics and space-grade electronics |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package: hermetically sealed, tin-lead plated leads, cathode indicated by single black band. Weight ≈ 0.2 g. Lead length standard 1.0–1.5 inches (25.4–38.1 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-bias reference node | Connected to system ground or lower-potential rail during Zener operation |
| Cathode | Regulated output node | Banded end supplies stable 6.8 V output when reverse-biased above breakdown |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Validated reliability for flight-critical and mission-essential systems with full screening and lot traceability |
| 1% Zener voltage tolerance | Reduces calibration burden in precision power supply feedback and analog reference designs |
| Metallurgical bond construction | Prevents delamination under thermal stress, ensuring long-term parameter stability in cyclic environments |
| Hermetic glass DO-35 package | Eliminates moisture ingress and parameter shift over time, supporting >20-year field life |
| Low 40 µV/√Hz noise density | Minimizes voltage reference jitter in ADC/DAC biasing and RF synthesizer PLLs |
Applications
| Avionics Power Reference | Satellite Onboard Computer Regulator |
|---|---|
Use Scenario: Providing stable 6.8 V reference for analog-to-digital converters in flight control sensor interfaces. IC Role / Device Role / Timing Role: Shunt voltage reference diode establishing precision bias point for signal conditioning circuitry. Use Value: 1% tolerance and +0.060 %/°C tempco enable <±0.5% total error across –55 to +125 °C operating range. | Use Scenario: Regulating auxiliary supply rails in radiation-hardened onboard computers aboard LEO satellites. IC Role / Device Role / Timing Role: Primary Zener shunt regulator in non-switching backup power subsystems. Use Value: Inherent radiation hardness and JANTXV qualification ensure uninterrupted operation under TID > 100 krad(Si). |
| Missile Guidance System Bias | Ground-Based Radar Receiver Reference |
Use Scenario: Generating stable bias voltages for op-amp front-ends in inertial measurement unit (IMU) signal chains. IC Role / Device Role / Timing Role: Precision voltage reference element in analog signal path requiring minimal drift and noise. Use Value: 40 µV/√Hz noise density prevents degradation of SNR in low-level gyro/accelerometer amplification stages. | Use Scenario: Supplying regulated reference for local oscillator phase-locked loops in S-band radar receivers. IC Role / Device Role / Timing Role: Low-noise Zener source feeding voltage-controlled oscillator (VCO) tuning port. Use Value: Hermetic DO-35 package and metallurgical bond prevent parameter shift during high-vibration radar platform operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4099UR-1 | Same 6.8 V, 1% spec but in DO-213AA surface-mount package; no axial leads | Used where PCB real estate is constrained and reflow assembly required | Select when transitioning from through-hole to SMT without changing regulation performance |
| JANTXV1N4099-1 | Identical electrical specs but ±5% Zener tolerance instead of ±1% | Acceptable where calibration or trimming compensates for wider initial voltage spread | Choose for cost-sensitive programs where 5% tolerance meets system-level accuracy requirements |
Compared with JANTXV1N4099D-1, the JANTXV1N4099-1 offers identical reliability and thermal specs but trades 1% tolerance for lower cost, while the 1N4099UR-1 preserves all electrical parameters in a surface-mount form factor-neither is pin-compatible due to differing packages.
Availability
JANTXV1N4099D-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite onboard computer regulator, and missile guidance system bias applications requiring stable component supply, full traceability, and long-term obsolescence management.
Supply support for JANTXV1N4099D-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, radiation-hardened, and aerospace-grade components.
The JANTXV1N4099D-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for defense, space, and critical infrastructure applications demanding guaranteed parametric stability and extended temperature operation.
FAQ
What does the "D" suffix in JANTXV1N4099D-1 indicate?
The "D" suffix in JANTXV1N4099D-1 specifies ±1% Zener voltage tolerance per MIL-PRF-19500/435. This tighter tolerance distinguishes it from the base JANTXV1N4099-1 (±5%) and JANTXV1N4099C-1 (±2%). JANTXV1N4099D-1 maintains identical power rating, package, and reliability qualification-only the initial VZ accuracy differs.
Is JANTXV1N4099D-1 RoHS compliant?
No, JANTXV1N4099D-1 is not RoHS compliant. Per the manufacturer's documentation, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade variants-not for JAN, JANTX, JANTXV, or JANS military-qualified parts like JANTXV1N4099D-1, which retain tin-lead plating for solderability and reliability validation.
What is the maximum allowable Zener current for continuous operation of JANTXV1N4099D-1?
The maximum Zener current (IZM) for JANTXV1N4099D-1 is 5.2 mA at 25 °C lead temperature. This value is derived from the 500 mW power rating and 6.8 V nominal Zener voltage (P = V × I). Operation above this current requires strict thermal management and linear derating above 50 °C lead temperature per Figure 2 in the datasheet.
How is polarity marked on JANTXV1N4099D-1, and how must it be connected?
JANTXV1N4099D-1 uses a single black cathode band to mark polarity. For Zener regulation, the banded (cathode) end must be held at a higher potential than the anode-i.e., reverse-biased. Connecting it forward-biased results in ~1.1 V drop and no regulation. Correct orientation is essential for achieving the specified 6.8 V reference.
Does JANTXV1N4099D-1 require external heat sinking in typical PCB layouts?
No, JANTXV1N4099D-1 does not require external heat sinking in standard FR4 layouts with 4 mm² copper pads and 1 mm track width. Its junction-to-lead thermal resistance is 250 °C/W, and rated 500 mW dissipation is achievable with 3/8″ (10 mm) lead length from body. Derating begins at 50 °C lead temperature, reaching zero at 175 °C.
JANTXV1N4099D-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):
- 6.8 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- 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)
JANTXV1N4099D-1 FAQ
1.How can I place an order for JANTXV1N4099D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4099D-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 JANTXV1N4099D-1 reliable?
The price and inventory of JANTXV1N4099D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4099D-1 is usually 5 days.
3.What payment methods are accepted for JANTXV1N4099D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4099D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4099D-1?
JANTXV1N4099D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4099D-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 JANTXV1N4099D-1?
For technical support, including JANTXV1N4099D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4099D-1 requirements.
6.How does Aetrix verify that JANTXV1N4099D-1 is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4099D-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 JANTXV1N4099D-1 meets industry standards.
7.What is the process for return or replacement of JANTXV1N4099D-1?
All JANTXV1N4099D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4099D-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 JANTXV1N4099D-1 part is unused and in its original packaging.
Return procedure for JANTXV1N4099D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4099D-1 Tags
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