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Microchip Technology JANS1N4099-1
- Part No.:
- JANS1N4099-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4099-1.pdf
- Description:
- DIODE ZENER 6.8V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,916
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Product details
Overview
JANS1N4099-1 from Microsemi is a 500 mW, 6.8 V Zener voltage regulator diode in DO-35 glass axial-leaded package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications. 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 JANS1N4099-1 datasheet, JANS1N4099-1 pinout, JANS1N4099-1 application, or JANS1N4099-1 equivalent, key selection criteria include its JANS-level radiation hardness, 1% Zener tolerance option (via suffix 'D'), low noise density (40 µV/√Hz), and hermetic DO-35 packaging for extreme-environment voltage reference stability.
Technical Context
The JANS1N4099-1 operates as a precision shunt voltage reference with metallurgically bonded junction construction, enabling stable regulation across -65°C to +175°C junction temperature range. Its 6.8 V nominal Zener voltage is specified at 250 mA test current with ±1% tolerance available and +0.060 %/°C tempco for predictable drift compensation.
It exhibits 200 Ω dynamic impedance at IZT, 1.0 µA max reverse leakage at VR = 5.2 V, and 40 µV/√Hz noise density - performance validated under MIL-STD-750 test methods and compliant with RoHS only in commercial-grade variants (e3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 6.8 V at 250 mA test current - defines precise regulation point for biasing and reference circuits |
| Power Dissipation | 500 mW at TC = 25°C - supports stable operation in conduction-limited analog stages |
| Dynamic Impedance ZZT | 200 Ω at IZT - ensures minimal output voltage variation under load transients |
| Tempco αVZ | +0.060 %/°C - enables accurate thermal drift modeling in wide-temperature systems |
| Noise Density ND | 40 µV/√Hz - critical for low-noise voltage references in precision instrumentation |
| Reverse Leakage IR | 1.0 µA at VR = 5.2 V - guarantees tight regulation margin below breakdown threshold |
| Junction Temp Range | -65°C to +175°C - qualified for spacecraft, avionics, and nuclear-hardened electronics |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode indicated by color band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during forward bias; grounded reference node in Zener mode | Connected to system ground or low-impedance return path for stable regulation |
| Cathode | Regulated output node in reverse-bias Zener operation | Banded end - must be held positive relative to anode to maintain breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Meets highest reliability screening for spaceflight and strategic defense systems |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - no TID derating required up to 100 krad(Si) |
| Low capacitance | Typical <2 pF - preserves high-frequency stability in RF bias networks and fast-switching regulators |
| ESD immunity | Non-sensitive per MIL-STD-750 Method 1020 - withstands >4 kV HBM without parameter shift |
Applications
| Avionics Power Conditioning | Satellite Onboard Reference |
|---|---|
Use Scenario: Regulating auxiliary rail voltages in flight control computers exposed to -55°C to +125°C ambient. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 6.8 V bias for op-amp comparators and ADC reference buffers. Use Value: JANS1N4099-1's -65°C to +175°C operating range and 0.060 %/°C tempco enable <±10 mV drift over full temperature swing. | Use Scenario: Precision voltage reference in star tracker power supply within LEO satellite payload. IC Role / Device Role / Timing Role: Low-noise Zener element establishing primary analog reference for radiation-hardened data acquisition subsystem. Use Value: 40 µV/√Hz noise density and inherent TID hardness ensure sub-LSB ADC accuracy without shielding or redundancy. |
| Nuclear Instrumentation | Strategic Missile Guidance |
Use Scenario: Biasing photomultiplier tube HV supplies in reactor monitoring systems with gamma exposure. IC Role / Device Role / Timing Role: Stable Zener clamp maintaining constant gain calibration despite cumulative ionizing dose. Use Value: Radiation-hardened construction eliminates need for periodic recalibration after 100 krad(Si) total dose. | Use Scenario: Voltage reference in inertial measurement unit (IMU) signal conditioning under high-G launch vibration. IC Role / Device Role / Timing Role: Hermetic DO-35 packaged regulator supplying reference for gyro bias circuitry. Use Value: Metallurgical bond and MIL-qualified lead attachment prevent parametric shift during 20,000 g shock events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4099-1 | Same electrical specs but qualified to JANTXV level (lower screening rigor than JANS); 250 °C/W RθJL vs. JANS 250 °C/W | Approved for high-reliability ground-based radar, not spaceflight or nuclear environments | Select when full JANS screening is unnecessary and cost sensitivity is higher |
| 1N4099UR-1 | Surface-mount DO-213AA variant; identical VZ, ZZT, and tempco; 300 °C/W RθJA vs. DO-35's 300 °C/W | Used in automated SMT production where axial leads are incompatible with board assembly flow | Select when PCB layout requires SMT footprint and thermal management permits same power derating |
Compared with JANS1N4099-1, JANTXV1N4099-1 offers reduced qualification cost for non-space programs, while 1N4099UR-1 enables SMT integration without sacrificing regulation accuracy - neither is pin-compatible due to differing package geometries and lead forms.
Availability
JANS1N4099-1 is available at Aetrix Electronics and suitable for avionics power conditioning, satellite onboard reference, and nuclear instrumentation requiring stable component supply with guaranteed long-term traceability and obsolescence mitigation.
Supply support for JANS1N4099-1 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 JANS1N4099-1 belongs to Microsemi's MIL-PRF-19500/435 qualified Zener diode family, engineered specifically for voltage reference stability under extreme radiation, temperature, and mechanical stress.
FAQ
What is the Zener voltage tolerance for JANS1N4099-1?
JANS1N4099-1 has a standard ±5% Zener voltage tolerance; however, tighter tolerances of ±2% (suffix 'C') and ±1% (suffix 'D') are available per part nomenclature. The base JANS1N4099-1 part uses the standard 5% tolerance unless otherwise specified in ordering code.
Is JANS1N4099-1 RoHS compliant?
No - JANS1N4099-1 is not RoHS compliant. RoHS-compliant versions (e3 suffix) are available only in commercial-grade variants (e.g., 1N4099-1e3), not in JANS-qualified parts, which retain tin-lead plating per MIL-STD-750 requirements for solderability and reliability.
What is the maximum Zener current IZM for JANS1N4099-1?
The maximum Zener current IZM for JANS1N4099-1 is 5.2 mA at 25°C, derived from its 500 mW power rating and 6.8 V nominal Zener voltage. This value assumes thermal equilibrium and linear derating above 50°C case temperature per Figure 2 in the datasheet.
How does JANS1N4099-1 perform under radiation exposure?
JANS1N4099-1 is inherently radiation hard per Microsemi MicroNote 050, exhibiting no functional degradation or parameter shift up to 100 krad(Si) total ionizing dose. Its metallurgically bonded structure and glass encapsulation eliminate displacement damage mechanisms common in plastic-packaged Zeners.
Can JANS1N4099-1 be used in surface-mount designs?
No - JANS1N4099-1 uses a DO-35 axial-leaded package and is not suitable for SMT assembly. For surface-mount equivalents, consider the 1N4099UR-1 (DO-213AA) or 1PMT4099 (DO-216), both sharing identical electrical characteristics but differing in package form factor and qualification level.
JANS1N4099-1 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)
JANS1N4099-1 FAQ
1.How can I place an order for JANS1N4099-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4099-1 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 JANS1N4099-1 reliable?
The price and inventory of JANS1N4099-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4099-1 is usually 5 days.
3.What payment methods are accepted for JANS1N4099-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4099-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4099-1?
JANS1N4099-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4099-1 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 JANS1N4099-1?
For technical support, including JANS1N4099-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4099-1 requirements.
6.How does Aetrix verify that JANS1N4099-1 is sourced from the original manufacturer or authorized distributors?
All JANS1N4099-1 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 JANS1N4099-1 meets industry standards.
7.What is the process for return or replacement of JANS1N4099-1?
All JANS1N4099-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4099-1, 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 JANS1N4099-1 part is unused and in its original packaging.
Return procedure for JANS1N4099-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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