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Microchip Technology JANTXV1N4621D-1
- Part No.:
- JANTXV1N4621D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4621D-1.pdf
- Description:
- DIODE ZENER 3.6V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,289
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Product details
Overview
JANTXV1N4621D-1 from Microsemi is a 1% tolerance, 3.6 V, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to MIL-PRF-19500/435 JANTXV level for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTXV1N4621D-1 datasheet, JANTXV1N4621D-1 pinout, JANTXV1N4621D-1 application, or JANTXV1N4621D-1 equivalent, key selection criteria include Zener voltage tolerance (±1%), dynamic impedance (1700 Ω @ 250 mA), noise density (1 µV/√Hz), temperature coefficient (−0.065 %/°C), and hermetic DO-35 packaging for radiation-hardened environments.
Technical Context
This discrete Zener diode operates in reverse breakdown to maintain stable reference voltage across wide current (250 mA test point) and temperature (−65 °C to +175 °C) ranges. Its internal metallurgical bond ensures low leakage and long-term stability under thermal cycling and radiation exposure.
Designed for precision analog references and regulated power rails, it delivers 3.6 V nominal output with ±1% initial tolerance and exhibits negative temperature coefficient behavior, enabling predictable drift compensation in mixed-signal systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.6 V ±1% at 250 mA - defines precise regulation point for low-voltage reference circuits |
| Power Dissipation | 500 mW at 25 °C - supports continuous operation in compact, unheatsinked designs |
| Dynamic Impedance ZZT | 1700 Ω @ 250 mA - determines load regulation error under varying current conditions |
| Noise Density | 1 µV/√Hz @ 250 mA - enables use in low-noise analog references and sensor biasing |
| Temp Coefficient αVZ | −0.065 %/°C - allows accurate thermal drift modeling in wide-temperature applications |
| Reverse Leakage IR | 3.5 µA @ 2.0 V - ensures minimal standby current in battery-powered systems |
| Junction Temp Range | −65 °C to +175 °C - qualifies for extended-range military and space-grade electronics |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with cathode indicated by band; leads are tin-lead plated and solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail during Zener operation |
| Cathode | Regulated output node | Banded end; supplies stable 3.6 V when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Guarantees screening, testing, and traceability for flight-critical avionics and defense systems |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and mechanical stress |
| 1% Zener voltage tolerance | Reduces need for post-calibration trimming in precision reference designs |
| Hermetic glass encapsulation | Prevents moisture ingress and parametric shift over 20+ year service life |
| Radiation hardness | Inherently resistant to total ionizing dose (TID) per Microsemi MicroNote 050 |
Applications
| Aerospace Power Reference | Defense System Biasing |
|---|---|
Use Scenario: Providing stable 3.6 V reference for ADCs and DACs in satellite telemetry modules operating across −55 °C to +125 °C. IC Role / Device Role / Timing Role: Precision voltage reference source for analog-to-digital conversion circuitry. Use Value: ±1% initial tolerance and −0.065 %/°C tempco enable <±0.5% total error over full temperature range without calibration. | Use Scenario: Biasing op-amps and comparators in radar receiver front-ends exposed to neutron/gamma radiation. IC Role / Device Role / Timing Role: Radiation-hardened Zener regulator for analog signal conditioning stages. Use Value: Hermetic DO-35 package and metallurgical bond ensure parametric stability after 100 krad(Si) TID exposure. |
| Avionics Sensor Interface | Tactical Radio Voltage Clamp |
Use Scenario: Regulating excitation voltage for strain-gauge bridges in flight control surface position sensors. IC Role / Device Role / Timing Role: Low-noise (1 µV/√Hz), low-capacitance Zener reference for bridge excitation. Use Value: Minimal capacitance (<2 pF typical) avoids phase shift in high-frequency bridge outputs. | Use Scenario: Clamping transient overvoltage on 5 V supply rails in handheld radios subjected to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response Zener clamp protecting RF power amplifier bias circuitry. Use Value: 500 mW rating and 1700 Ω dynamic impedance limit clamping voltage excursion to <4.2 V at 100 mA surge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4621US | Same electrical specs but in DO-213AA surface-mount package | Requires PCB re-layout for SMT assembly; no axial lead mounting option | Select for automated production where board space and weight are constrained |
| 1N4621UR-1 | Commercial-grade, RoHS-compliant, 5% tolerance version in DO-35 | Lacks MIL-PRF-19500 qualification and radiation hardness data | Select for cost-sensitive industrial prototypes not requiring flight certification |
Compared with JANTXV1N4621D-1, JANTXV1N4621US offers identical regulation performance in a smaller footprint but eliminates through-hole flexibility, while 1N4621UR-1 reduces cost and supports RoHS compliance but forfeits military screening and long-term reliability validation.
Availability
JANTXV1N4621D-1 is available at Aetrix Electronics and suitable for aerospace power references, defense system biasing, and avionics sensor interfaces requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTXV1N4621D-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, RF, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N46xx-1 series was designed specifically for precision voltage regulation in mission-critical systems where long-term stability, hermetic sealing, and MIL-spec qualification are mandatory design requirements.
FAQ
What is the Zener voltage tolerance of JANTXV1N4621D-1?
JANTXV1N4621D-1 has a nominal Zener voltage of 3.6 V with ±1% tolerance, as indicated by the "D" suffix in its part number per MIL-PRF-19500/435 nomenclature. This tight tolerance is verified at 250 mA test current and 25 °C ambient, enabling high-accuracy reference design without post-manufacturing calibration.
Is JANTXV1N4621D-1 suitable for radiation-hardened applications?
Yes, JANTXV1N4621D-1 is inherently radiation-hardened due to its metallurgically bonded construction and hermetic DO-35 glass package. Microsemi MicroNote 050 documents its resistance to total ionizing dose (TID), making JANTXV1N4621D-1 appropriate for low-earth orbit satellite subsystems and nuclear instrumentation.
What is the maximum power dissipation of JANTXV1N4621D-1 at 100 °C ambient?
JANTXV1N4621D-1 is rated for 500 mW at 25 °C, with linear derating beginning at 50 °C. At 100 °C ambient, its usable power drops to approximately 250 mW, calculated using the 300 °C/W junction-to-ambient thermal resistance and the specified derating curve in the datasheet.
Does JANTXV1N4621D-1 have low noise characteristics?
Yes, JANTXV1N4621D-1 exhibits a noise density of 1 µV/√Hz at 250 mA, among the lowest in the 1N46xx family. This performance is confirmed in Figure 1 of the T4-LDS-0245-2 datasheet and makes JANTXV1N4621D-1 suitable for precision analog references where broadband noise must be minimized.
What does the "JANTXV" prefix signify for JANTXV1N4621D-1?
The "JANTXV" prefix indicates that JANTXV1N4621D-1 meets MIL-PRF-19500/435 Level JANTXV requirements, including extended temperature screening (−65 °C to +175 °C), burn-in, and lot traceability. It reflects higher reliability than commercial or JAN-grade versions, intended for critical defense and space applications.
JANTXV1N4621D-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):
- 3.6 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1700 Ohms
- Current - Reverse Leakage @ Vr:
- 3.5 µA @ 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)
JANTXV1N4621D-1 FAQ
1.How can I place an order for JANTXV1N4621D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4621D-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 JANTXV1N4621D-1 reliable?
The price and inventory of JANTXV1N4621D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4621D-1 is usually 5 days.
3.What payment methods are accepted for JANTXV1N4621D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4621D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4621D-1?
JANTXV1N4621D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4621D-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 JANTXV1N4621D-1?
For technical support, including JANTXV1N4621D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4621D-1 requirements.
6.How does Aetrix verify that JANTXV1N4621D-1 is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4621D-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 JANTXV1N4621D-1 meets industry standards.
7.What is the process for return or replacement of JANTXV1N4621D-1?
All JANTXV1N4621D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4621D-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 JANTXV1N4621D-1 part is unused and in its original packaging.
Return procedure for JANTXV1N4621D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4621D-1 Tags
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