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Microchip Technology JANTX1N4620D-1
- Part No.:
- JANTX1N4620D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4620D-1.pdf
- Description:
- DIODE ZENER 3.3V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,072
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Product details
Overview
JANTX1N4620D-1 from Microsemi is a 1% tolerance, 3.3 V, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTX1N4620D-1 datasheet, JANTX1N4620D-1 pinout, JANTX1N4620D-1 application, or JANTX1N4620D-1 equivalent, key selection criteria include Zener voltage tolerance (±1%), noise density (1 µV/√Hz), dynamic impedance (1650 Ω), thermal resistance (250 °C/W), and military qualification level.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 3.3 V at 250 mA test current, exhibiting a temperature coefficient of –0.075 %/°C and low noise density ideal for reference circuits requiring stable DC bias under varying load and temperature conditions.
Its metallurgical bond construction ensures robust junction integrity, while hermetic glass DO-35 packaging provides immunity to moisture and contaminants-critical for operation across –65 °C to +175 °C junction temperature range in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.3 V ±1% at IZT = 250 mA - enables precise low-voltage reference generation with tight initial accuracy |
| Power Dissipation | 500 mW at TL = 25 °C - supports continuous regulation in compact axial-leaded layouts without forced cooling |
| Dynamic Impedance ZZT | 1650 Ω max at 250 mA - defines output impedance in regulation region, critical for ripple rejection in analog references |
| Noise Density ND | 1 µV/√Hz at 250 mA - specifies broadband RMS noise floor, essential for low-noise instrumentation and sensor biasing |
| Temp Coefficient αVZ | –0.075 %/°C - quantifies voltage drift over temperature, enabling predictable compensation in wide-range systems |
| Reverse Leakage IR | 3.5 µA max at VR = 1.5 V - ensures minimal standby current in battery-powered or ultra-low-power hold-up circuits |
| Junction Temp Range | –65 °C to +175 °C - validates operation in extreme environments including space-grade and engine-mounted electronics |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; operated with banded end positive relative to anode for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential point; establishes return path for Zener current |
| Cathode | Regulated output node | Banded end; supplies stable 3.3 V reference when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for aerospace and defense applications with full lot traceability and screening per military standards |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling, ensuring long-term parameter stability in mission-critical systems |
| 1% Zener voltage tolerance | Reduces need for post-manufacture trimming in precision reference designs, lowering calibration cost and time |
| Low noise density (1 µV/√Hz) | Enables use in high-resolution ADC references and low-noise op-amp bias networks without added filtering |
| Hermetic glass encapsulation | Prevents humidity-induced leakage and parameter shift, supporting >20-year shelf life and field reliability in humid environments |
Applications
| Avionics Power Reference | Satellite Sensor Biasing |
|---|---|
Use Scenario: Providing stable 3.3 V reference for analog-to-digital converters in flight control computers operating across –55 °C to +125 °C ambient. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing precision DC bias for signal conditioning circuitry. Use Value: Tight 1% tolerance and –0.075 %/°C tempco ensure <±20 mV total drift over full temperature range, meeting DO-160E environmental compliance. | Use Scenario: Biasing photodiode arrays in Earth observation payloads where low-noise performance directly impacts radiometric accuracy. IC Role / Device Role / Timing Role: Low-noise Zener reference supplying bias current to front-end transimpedance amplifiers. Use Value: 1 µV/√Hz noise density minimizes baseline uncertainty in sub-picoamp photocurrent measurements, improving SNR by >12 dB vs. standard Zeners. |
| Rad-Hard Telemetry Regulator | Tactical Radio Voltage Clamp |
Use Scenario: Regulating supply rails in radiation-hardened telemetry modules exposed to total ionizing dose >100 krad(Si). IC Role / Device Role / Timing Role: Radiation-tolerant shunt regulator maintaining stable voltage despite displacement damage in semiconductor lattice. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or derating, reducing mass and volume in launch-constrained systems. | Use Scenario: Clamping transient overvoltage on 3.3 V logic rails during ESD events in handheld military radios. IC Role / Device Role / Timing Role: Fast-response Zener clamp absorbing surge energy before it reaches sensitive RF ICs. Use Value: 250 °C/W junction-to-lead thermal resistance allows rapid heat dissipation during 8 kV HBM ESD pulses, preventing latch-up in downstream CMOS devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4620D-1 | Higher qualification level (JANTXV vs. JANTX); tighter screening, extended temperature testing, and enhanced lot traceability | Required for programs specifying MIL-PRF-19500/435 Class V screening (e.g., missile guidance subsystems) | Select when full JANTXV screening documentation and extended burn-in are mandated by system-level reliability requirements |
| 1N4620UR-1 | Same electrical specs but in DO-213AA surface-mount package; no axial leads; RoHS-compliant matte tin plating | Suitable for automated SMT assembly and space-constrained PCBs where through-hole mounting is impractical | Choose for high-volume production with reflow soldering and where board real estate limits axial component placement |
Compared with JANTX1N4620D-1, JANTXV1N4620D-1 adds screening rigor without altering electrical behavior, while 1N4620UR-1 shifts to surface-mount form factor-neither is pin-compatible due to differing packages, making them functional alternatives rather than drop-in replacements.
Availability
JANTX1N4620D-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite sensor biasing, rad-hard telemetry regulator, tactical radio voltage clamp, and precision instrumentation requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTX1N4620D-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 1N46xx-1 series was designed specifically for military and space applications demanding guaranteed parametric stability, hermetic sealing, and full MIL-PRF-19500 qualification-targeting voltage reference and regulation roles in safety-critical systems.
FAQ
What is the Zener voltage tolerance of JANTX1N4620D-1?
JANTX1N4620D-1 has a nominal Zener voltage of 3.3 V with ±1% tolerance, denoted by the "D" suffix in its nomenclature per MIL-PRF-19500/435. This tight tolerance is verified at 250 mA test current and ensures predictable regulation without post-production trimming in high-precision reference designs.
Is JANTX1N4620D-1 suitable for space applications?
Yes, JANTX1N4620D-1 is inherently radiation-hard per Microsemi MicroNote 050 and qualified to MIL-PRF-19500/435 JANTX level, making it suitable for low-earth orbit missions where total ionizing dose up to 100 krad(Si) is expected. Its hermetic DO-35 package further ensures long-term reliability in vacuum environments.
What is the maximum Zener current rating for JANTX1N4620D-1?
The maximum Zener current IZM for JANTX1N4620D-1 is 85.0 mA, calculated from its 500 mW power rating and 3.3 V Zener voltage (P = V × I). Derating begins linearly at lead temperature >50 °C, reaching zero dissipation at 175 °C per Figure 2 in the datasheet.
Does JANTX1N4620D-1 have RoHS compliance?
No, JANTX1N4620D-1 is not RoHS compliant. Per the datasheet, RoHS-compliant versions (suffix "e3") are available only for commercial-grade variants-not for JAN, JANTX, JANTXV, or JANS levels. JANTX1N4620D-1 uses traditional tin-lead plating per MIL-STD-750.
How does the noise performance of JANTX1N4620D-1 compare to lower-voltage Zeners in the same family?
JANTX1N4620D-1 exhibits 1 µV/√Hz noise density at 250 mA, consistent with other sub-4 V devices in the 1N4614–1N4627 series. This is significantly lower than higher-voltage parts (e.g., 6.8 V and above), which reach 40 µV/√Hz-making JANTX1N4620D-1 optimal for ultra-low-noise analog references.
JANTX1N4620D-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):
- 3.3 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1650 Ohms
- Current - Reverse Leakage @ Vr:
- 3.5 µA @ 1.5 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANTX1N4620D-1 FAQ
1.How can I place an order for JANTX1N4620D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4620D-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 JANTX1N4620D-1 reliable?
The price and inventory of JANTX1N4620D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4620D-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4620D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4620D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4620D-1?
JANTX1N4620D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4620D-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 JANTX1N4620D-1?
For technical support, including JANTX1N4620D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4620D-1 requirements.
6.How does Aetrix verify that JANTX1N4620D-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4620D-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 JANTX1N4620D-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4620D-1?
All JANTX1N4620D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4620D-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 JANTX1N4620D-1 part is unused and in its original packaging.
Return procedure for JANTX1N4620D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4620D-1 Tags
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