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Microchip Technology JANTX1N4620C-1
- Part No.:
- JANTX1N4620C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4620C-1.pdf
- Description:
- DIODE ZENER 3.3V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,734
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Product details
Overview
JANTX1N4620C-1 from Microsemi is a 500 mW, 3.3 V ±2% tolerance metallurgically bonded glass Zener diode in DO-35 package, rated for MIL-PRF-19500/435 JANTX level, with 1650 Ω dynamic impedance at 250 mA test current and 3.5 µA max reverse leakage at 2.5 V.
For engineers reviewing the JANTX1N4620C-1 datasheet, JANTX1N4620C-1 pinout, JANTX1N4620C-1 application, or JANTX1N4620C-1 equivalent, key selection factors include Zener voltage tolerance (±2%), military qualification level (JANTX), thermal resistance (250 °C/W junction-to-lead), noise density (1 µV/√Hz), and axial-leaded DO-35 mechanical compatibility.
Technical Context
This device operates as a precision voltage reference in reverse-biased breakdown mode, with cathode band marking polarity and specified regulation at IZT = 250 mA. Its metallurgical bond construction ensures stable long-term Zener voltage performance under thermal cycling and high-reliability stress conditions.
The JANTX1N4620C-1 exhibits a temperature coefficient of –0.075 %/°C and maximum noise density of 1 µV/√Hz - critical for low-noise analog references - and is characterized across –65 °C to +175 °C junction temperature range per MIL-PRF-19500/435 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 3.3 V ±2% at 250 mA - enables stable 3.3 V rail regulation with tight tolerance for precision biasing |
| Power Dissipation | 500 mW at 25 °C - supports continuous operation up to 85 °C ambient with linear derating |
| Dynamic Impedance | 1650 Ω at 250 mA - defines output impedance in regulation region; impacts load regulation error |
| Reverse Leakage | 3.5 µA max at 2.5 V - ensures minimal quiescent current in standby or low-power monitoring circuits |
| Noise Density | 1 µV/√Hz - specifies broadband RMS noise floor; critical for sensor reference and ADC bias applications |
| Temp Coefficient | –0.075 %/°C - quantifies voltage drift over temperature; allows accurate compensation in wide-temp designs |
| Junction Temp Range | –65 °C to +175 °C - validated for aerospace, downhole, and military platforms requiring extreme environmental resilience |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package, 0.2 g weight, 1.0–1.5 inch lead length, cathode indicated by color band. Leads are tin-lead or RoHS-compliant matte-tin plated and solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse voltage applied between cathode and anode |
| Cathode | Zener regulation terminal / voltage reference output | Banded end; connected to regulated voltage node; supplies stable 3.3 V when reverse-biased above breakdown |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for defense/aerospace systems with full lot traceability and screening per military standards |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock, ensuring Zener voltage stability over 10+ year service life |
| 1 µV/√Hz noise density | Enables use in ultra-low-noise analog front-ends where reference-induced noise must be <10 µV RMS |
| –65 °C to +175 °C operating range | Supports deployment in engine control units, satellite power systems, and oilfield electronics without derating penalties |
| DO-35 axial-leaded mechanical form | Compatible with legacy through-hole assembly, wave soldering, and manual prototyping without SMT rework |
Applications
| Avionics Power Monitoring | Satellite Sensor Biasing |
|---|---|
Use Scenario: Monitoring 28 V aircraft bus voltage via resistive divider into ADC input. IC Role / Device Role / Timing Role: Precision 3.3 V reference for ADC voltage scaling and offset calibration. Use Value: ±2% Zener tolerance and –0.075 %/°C TC ensure <0.5% total error across –55 °C to +85 °C flight envelope. | Use Scenario: Providing stable bias to radiation-hardened photodiode amplifier in LEO orbit. IC Role / Device Role / Timing Role: Low-noise, radiation-inherent Zener reference for transimpedance gain setting. Use Value: 1 µV/√Hz noise density prevents signal degradation in sub-picoamp photocurrent measurement. |
| Downhole Telemetry Control | Tactical Radio RF Stage Bias |
Use Scenario: Regulating voltage for microcontroller and MEMS pressure sensor in oil/gas drill string electronics. IC Role / Device Role / Timing Role: High-temperature-stable Zener regulator supplying 3.3 V logic and analog subsystems. Use Value: Operation up to +175 °C junction temperature eliminates need for external thermal management in sealed housings. | Use Scenario: Setting gate bias point for GaN RF power amplifier in manpack radio front-end. IC Role / Device Role / Timing Role: Stable DC reference for Class AB bias network requiring minimal drift during transmit bursts. Use Value: Metallurgical bond construction prevents parameter shift under vibration and thermal transients during field use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4620US-1 | Same Zener voltage and tolerance, but in surface-mount DO-213AA package; no axial leads | Requires PCB redesign for SMT placement; unsuitable for through-hole or prototyping breadboards | Select when board space is constrained and automated assembly is used; not drop-in compatible with JANTX1N4620C-1 |
| JANTXV1N4620C-1 | Identical electrical specs but qualified to higher JANTXV level with extended screening (e.g., burn-in, thermal shock) | Required for mission-critical avionics or space-grade programs demanding zero latent defects | Select when system-level reliability requirements exceed JANTX; same footprint and electrical behavior |
Compared with JANTX1N4620C-1, the 1N4620US-1 offers SMT integration at the cost of mechanical incompatibility, while JANTXV1N4620C-1 delivers enhanced process validation without changing circuit design or layout - making it ideal for safety-critical upgrades.
Availability
JANTX1N4620C-1 is available at Aetrix Electronics and suitable for avionics power monitoring, satellite sensor biasing, and downhole telemetry control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for JANTX1N4620C-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 military-qualified components.
The 1N46xx-1 series, including JANTX1N4620C-1, was designed specifically for precision voltage regulation in defense, aerospace, and industrial systems where long-term stability, extreme temperature operation, and MIL-spec compliance are mandatory.
FAQ
What is the Zener voltage tolerance of JANTX1N4620C-1?
JANTX1N4620C-1 has a nominal Zener voltage of 3.3 V with ±2% tolerance, designated by the "C" suffix in its part number per Microsemi's nomenclature. This tolerance is verified at 250 mA test current and 25 °C ambient, and applies across the full military temperature range when derated per MIL-PRF-19500/435 requirements.
Is JANTX1N4620C-1 suitable for high-temperature environments?
Yes, JANTX1N4620C-1 is rated for junction temperatures from –65 °C to +175 °C and qualified per MIL-PRF-19500/435 JANTX level. Its metallurgically bonded construction and DO-35 glass package enable reliable operation in downhole, engine bay, and spacecraft applications without thermal derating below 175 °C.
What does the "JANTX" prefix indicate for JANTX1N4620C-1?
The "JANTX" prefix on JANTX1N4620C-1 denotes compliance with Level 2 military qualification per MIL-PRF-19500/435, including extended environmental testing, lot traceability, and screening for parametric stability. It is distinct from commercial (no prefix), JAN (Level 1), or JANTXV (Level 3) variants.
How is polarity marked on JANTX1N4620C-1?
JANTX1N4620C-1 uses a cathode band to indicate polarity: the banded end is the cathode and must be held at a higher potential than the anode to achieve Zener regulation. Forward voltage is 1.1 V at 200 mA, confirming standard silicon diode behavior in forward conduction.
What is the maximum Zener current rating for JANTX1N4620C-1?
JANTX1N4620C-1 has a maximum Zener current (IZM) of 85.0 mA at 25 °C, calculated from its 500 mW power rating and 3.3 V Zener voltage. At elevated temperatures, this value decreases linearly per the derating curve in Figure 2 of the T4-LDS-0245-2 datasheet, reaching zero at 175 °C junction temperature.
JANTX1N4620C-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:
- ±2%
- 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)
JANTX1N4620C-1 FAQ
1.How can I place an order for JANTX1N4620C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4620C-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 JANTX1N4620C-1 reliable?
The price and inventory of JANTX1N4620C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4620C-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4620C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4620C-1 transactions.
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4.How is shipping managed for JANTX1N4620C-1?
JANTX1N4620C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4620C-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 JANTX1N4620C-1?
For technical support, including JANTX1N4620C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4620C-1 requirements.
6.How does Aetrix verify that JANTX1N4620C-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4620C-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 JANTX1N4620C-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4620C-1?
All JANTX1N4620C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4620C-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 JANTX1N4620C-1 part is unused and in its original packaging.
Return procedure for JANTX1N4620C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4620C-1 Tags
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