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Microchip Technology JANTX1N4099-1
- Part No.:
- JANTX1N4099-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4099-1.pdf
- Description:
- DIODE ZENER 6.8V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,075
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Product details
Overview
JANTX1N4099-1 from Microsemi is a 500 mW, 6.8 V ±5% metallurgically bonded glass Zener diode in DO-35 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, 5.2 mA maximum Zener current, and +0.060 %/°C temperature coefficient.
For engineers reviewing the JANTX1N4099-1 datasheet, JANTX1N4099-1 pinout, JANTX1N4099-1 application, or JANTX1N4099-1 equivalent, key selection criteria include military-grade reliability qualification, low-noise operation (40 µV/√Hz), axial-leaded DO-35 mounting, and stable regulation across -65°C to +175°C junction temperature range.
Technical Context
This Zener diode operates in reverse breakdown with cathode band indicating polarity, requiring banded end positive relative to anode for regulation. Its metallurgical bond ensures mechanical robustness and thermal stability under shock/vibration, supporting operation up to 175°C junction temperature with 250°C/W junction-to-lead thermal resistance.
Designed for precision reference and regulation in harsh environments, it exhibits minimal capacitance (typical <2 pF at 0 V), low leakage (≤1.0 µA at VR = 5.2 V), and noise density tightly specified at 40 µV/√Hz - critical for analog signal conditioning and low-noise power supply feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 6.8 V ±5% at 250 mA test current - defines nominal regulation point with tight tolerance for stable reference generation. |
| Power Dissipation | 500 mW at 25°C lead temperature - supports continuous regulation in compact axial layouts with linear derating to zero at 175°C. |
| Dynamic Impedance ZZT | 200 Ω at 250 mA - ensures minimal output voltage variation under load transients in feedback loops. |
| Noise Density ND | 40 µV/√Hz - enables use in low-noise analog references where voltage ripple must be minimized. |
| Temp Coefficient αVZ | +0.060 %/°C - provides predictable, low-drift regulation over wide temperature ranges in aerospace systems. |
| Reverse Leakage IR | ≤1.0 µA at 5.2 V - guarantees negligible current draw in standby or high-impedance bias networks. |
| Junction Temp Range | -65°C to +175°C - meets extended environmental requirements for defense and space-grade electronics. |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with tin-lead plating; cathode indicated by color band on body; weight ≈0.2 g; dimensions: BD = 1.42–2.29 mm, BL = 3.56–5.08 mm, LL = 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference Ground Node | Connected to system ground or low-impedance return path; forms regulated output node with cathode. |
| Cathode | Regulated Output Terminal | Banded end; connected to input supply through current-limiting resistor; delivers stable 6.8 V reference when reverse-biased. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for defense/aerospace applications including burn-in, life testing, and lot acceptance per military standards. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical stress, ensuring long-term parameter stability. |
| Low noise density (40 µV/√Hz) | Enables direct use in precision analog circuits without additional filtering, reducing BOM count and board area. |
| Hermetic glass sealing | Prevents moisture ingress and contamination, maintaining electrical performance over 20+ year service life in sealed enclosures. |
| ESD immunity (MIL-STD-750 Method 1020) | Withstands >4 kV HBM without parameter shift - simplifies handling and eliminates need for ESD protection circuitry. |
Applications
| Avionics Power Reference | Satellite Sensor Biasing |
|---|---|
Use Scenario: Providing stable 6.8 V reference for ADC front-end amplifiers in flight control computers operating across -55°C to +125°C ambient. IC Role / Device Role / Timing Role: Zener diode serving as primary voltage reference for analog signal conditioning chain. Use Value: JANTX1N4099-1's +0.060 %/°C tempco and 200 Ω dynamic impedance ensure ≤12 mV total drift over full temperature range, meeting DO-160E Section 22 Class D limits. | Use Scenario: Biasing photodiode preamplifiers in star tracker optical sensors exposed to radiation and vacuum. IC Role / Device Role / Timing Role: Precision shunt regulator establishing fixed bias point for low-noise op-amp inputs. Use Value: 40 µV/√Hz noise density and inherent radiation hardness (per MicroNote 050) preserve SNR >72 dB in deep-space imaging subsystems. |
| Tactical Radio RF Stage Bias | Nuclear Plant Control Module Reference |
Use Scenario: Setting gate bias for GaAs FETs in L-band power amplifier stages subject to vibration and EMI. IC Role / Device Role / Timing Role: Stable DC reference source for RF amplifier quiescent current control. Use Value: Hermetic DO-35 package and MIL-qualified construction prevent parameter shift during 10 g random vibration per MIL-STD-810G Method 514.6, ensuring consistent PA linearity. | Use Scenario: Generating fail-safe reference for redundant PLC analog input modules in Class 1E safety-critical instrumentation. IC Role / Device Role / Timing Role: Primary shunt regulator in isolated 24 V DC-to-6.8 V conversion stage. Use Value: JANTX-level qualification, -65°C to +175°C operation, and 1.0 µA max leakage meet IEEE 323/344 requirements for Class 1E component lifetime and fault tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4099US (Microchip) | Same 6.8 V rating and DO-35 package but commercial-grade only; no MIL qualification; RoHS-compliant matte-tin plating. | Lacks JANTX-level screening, burn-in, and radiation hardness data - unsuitable for flight hardware or nuclear-grade systems. | Select only for cost-sensitive industrial controls where military reliability is not mandated. |
| CMZ5339B (Central Semiconductor) | 6.8 V, 5 W rating in DO-204AL (DO-41); higher power, larger footprint; 200 Ω Zzt at 1.0 A, not 250 mA. | Designed for high-current regulation; thermal mass and layout incompatible with space-constrained JANTX1N4099-1 designs. | Use only when ≥3 W dissipation is required and PCB real estate allows DO-41 footprint. |
Compared with 1N4099US and CMZ5339B, JANTX1N4099-1 uniquely combines military-grade reliability, low-noise operation, and compact DO-35 form factor - making it irreplaceable for size- and mission-critical analog references where qualification evidence and parameter stability are non-negotiable.
Availability
JANTX1N4099-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite sensor biasing, and nuclear plant control module reference requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANTX1N4099-1 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.
The JANTX1N4099-1 belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, engineered specifically for precision voltage regulation in mission-critical systems where parameter stability, radiation tolerance, and environmental ruggedness are mandatory.
FAQ
What is the Zener voltage tolerance of JANTX1N4099-1?
JANTX1N4099-1 has a nominal Zener voltage of 6.8 V with a ±5% tolerance, as defined by its JAN/JANTX nomenclature and confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This tolerance applies at 25°C with 250 mA test current and reflects the standard JEDEC specification for this part number.
Is JANTX1N4099-1 RoHS compliant?
JANTX1N4099-1 is not RoHS compliant. Per the datasheet, RoHS-compliant versions (suffix "e3") are available only for commercial-grade variants, not for JANTX-level qualified parts like JANTX1N4099-1. The JANTX1N4099-1 uses traditional tin-lead plating to meet MIL-STD-750 solderability requirements.
What is the maximum reverse leakage current for JANTX1N4099-1?
The maximum reverse leakage current (IR) for JANTX1N4099-1 is 1.0 µA at VR = 5.2 V, as specified in the Electrical Characteristics table. This value is measured at 25°C and ensures minimal parasitic current draw in high-impedance reference networks where leakage could induce offset errors.
Can JANTX1N4099-1 be used in surface-mount designs?
No - JANTX1N4099-1 is exclusively packaged in the axial-leaded DO-35 (DO-204AH) glass case. Surface-mount equivalents such as 1N4099UR-1 (DO-213AA) or 1PMT4099 (DO-216) exist but are distinct orderable parts with different qualifications and thermal profiles; JANTX1N4099-1 itself is not SMT-compatible.
What is the thermal resistance junction-to-lead for JANTX1N4099-1?
JANTX1N4099-1 has a thermal resistance junction-to-lead (RθJL) of 250°C/W when mounted with 3/8 inch (10 mm) lead length from body, as stated in the Maximum Ratings table. This value is critical for calculating junction temperature rise under load and verifying safe operation within the -65°C to +175°C range.
JANTX1N4099-1 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:
- ±5%
- 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)
JANTX1N4099-1 FAQ
1.How can I place an order for JANTX1N4099-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4099-1 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 JANTX1N4099-1 reliable?
The price and inventory of JANTX1N4099-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4099-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4099-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4099-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4099-1?
JANTX1N4099-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4099-1 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 JANTX1N4099-1?
For technical support, including JANTX1N4099-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4099-1 requirements.
6.How does Aetrix verify that JANTX1N4099-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4099-1 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 JANTX1N4099-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4099-1?
All JANTX1N4099-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4099-1, 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 JANTX1N4099-1 part is unused and in its original packaging.
Return procedure for JANTX1N4099-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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