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Microchip Technology JANS1N4620C-1/TR
- Part No.:
- JANS1N4620C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4620C-1/TR.pdf
- Description:
- DIODE ZENER 3.3V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,050
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Product details
Overview
JANS1N4620C-1/TR from Microsemi is a 3.3 V, 2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense systems requiring stable voltage regulation under wide temperature and current variation.
For engineers reviewing the JANS1N4620C-1/TR datasheet, JANS1N4620C-1/TR pinout, JANS1N4620C-1/TR application, or JANS1N4620C-1/TR equivalent, key selection criteria include Zener voltage tolerance (±2%), low dynamic impedance (1650 Ω at 250 mA), noise density (1 µV/√Hz), radiation hardness, and hermetic DO-35 packaging for harsh-environment deployment.
Technical Context
This device operates as a precision shunt voltage regulator with cathode-banded polarity, designed for reverse-bias breakdown operation where the banded end is held positive relative to the anode. It delivers stable 3.3 V regulation across 250 mA test current and supports full-rated power up to +50 °C before linear derating to zero at +175 °C junction temperature.
Its internal metallurgical bond ensures mechanical robustness and low thermal resistance (RθJL = 250 °C/W at 10 mm lead length), while its minimal capacitance (<1.5 pF typical at 3.3 V) and ESD immunity per MIL-STD-750 method 1020 support use in sensitive analog and timing reference circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.3 V ±2% at 250 mA - enables precise 3.3 V rail clamping or reference generation in avionics power supervisors. |
| Power Dissipation | 500 mW at TL = 25 °C - supports continuous regulation in compact through-hole layouts without forced cooling. |
| Dynamic Impedance ZZT | 1650 Ω max at 250 mA - maintains tight regulation under load transients in feedback-sensing applications. |
| Noise Density | 1 µV/√Hz at 250 mA - critical for low-noise analog references in precision instrumentation and ADC biasing. |
| Temp Coefficient αVZ | –0.075 %/°C - predictable negative drift allows compensation in temperature-stable reference designs. |
| Reverse Leakage IR | 3.5 µA max at 3.5 V - ensures minimal quiescent current draw in always-on monitoring circuits. |
| Junction Temp Range | –65 °C to +175 °C - certified for operation in missile guidance, satellite power, and downhole drilling electronics. |
Pinout & Package
Hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with cathode indicated by a single black 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 (unbanded end) | Reference ground node | Connected to system ground or lower-potential rail; serves as return path for Zener current. |
| Cathode (banded end) | Regulated output node | Held at 3.3 V above anode during reverse conduction; supplies stable voltage to load or error amplifier input. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Meets highest military reliability standard for screening, testing, and traceability in space-grade hardware. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock in launch environments. |
| Low noise density (1 µV/√Hz) | Enables use as clean voltage reference in high-resolution data acquisition front-ends without added filtering. |
| Hermetic glass DO-35 package | Prevents moisture ingress and corrosion over 20+ year service life in sealed avionics enclosures. |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for LEO satellite power regulation. |
Applications
| Avionics Power Supervision | Satellite Voltage Reference |
|---|---|
Use Scenario: Monitoring 3.3 V FPGA core supply in flight control computer to trigger reset on undervoltage. IC Role / Device Role / Timing Role: Shunt voltage reference for comparator input in discrete supervisory circuit. Use Value: ±2% tolerance and –0.075 %/°C TC ensure trip point stability across –55 °C to +125 °C operational range. | Use Scenario: Providing stable 3.3 V bias to radiation-hardened ADC in Earth observation payload. IC Role / Device Role / Timing Role: Low-noise analog reference source for 16-bit SAR converter. Use Value: 1 µV/√Hz noise density avoids quantization floor degradation; JANS qualification guarantees mission-critical uptime. |
| Missile Guidance Sensor Bias | Downhole Telemetry Regulator |
Use Scenario: Biasing MEMS gyroscope signal conditioning circuit in inertial measurement unit exposed to 20 g vibration. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining constant headroom for op-amp rails. Use Value: Metallurgical bond and DO-35 hermeticity prevent parameter shift under sustained mechanical stress and thermal shock. | Use Scenario: Regulating sensor interface voltage in oil/gas well logging tool operating at 175 °C ambient. IC Role / Device Role / Timing Role: High-temperature Zener clamp protecting downstream ASIC inputs. Use Value: Rated operation to +175 °C junction temperature with linear derating ensures functional margin at extreme downhole temperatures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4620C-1 | Same 3.3 V ±2%, DO-35, but qualified only to JANTXV level (less rigorous screening than JANS). | Approved for high-reliability ground-based radar, not spaceflight or nuclear-hardened systems. | Select when full JANS screening is not required and cost sensitivity is higher. |
| 1N4620C-1/TR | Commercial-grade version: same electrical specs, RoHS-compliant plating, no MIL-PRF-19500 qualification. | Intended for industrial test equipment or non-safety-critical embedded systems. | Choose for prototyping or commercial production where radiation hardness and extended temp range are not mandatory. |
Compared with JANTXV1N4620C-1 and 1N4620C-1/TR, the JANS1N4620C-1/TR provides verified radiation tolerance, full JANS-level screening, and guaranteed operation to +175 °C - making it the sole option for flight-critical avionics and space-qualified subsystems.
Availability
JANS1N4620C-1/TR is available at Aetrix Electronics and suitable for avionics power supervision, satellite voltage reference, and missile guidance sensor bias requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for JANS1N4620C-1/TR 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 series was developed specifically for military and space applications demanding hermetic packaging, extended temperature operation, and proven performance under radiation exposure and mechanical stress - with JANS1N4620C-1/TR representing the highest-qualification variant in the family.
FAQ
What is the Zener voltage and tolerance of JANS1N4620C-1/TR?
JANS1N4620C-1/TR has a nominal Zener voltage of 3.3 V with a tolerance of ±2%, measured at 250 mA test current and 25 °C ambient. This tolerance is confirmed in the Electrical Characteristics table on page 3 of Microsemi's T4-LDS-0245-2 datasheet and applies across the full JANS-qualified operating temperature range.
Is JANS1N4620C-1/TR radiation hardened?
Yes, JANS1N4620C-1/TR is inherently radiation hard per Microsemi MicroNote 050, a documented characteristic of its metallurgically bonded structure and DO-35 hermetic glass package. This makes JANS1N4620C-1/TR suitable for low-Earth orbit satellite power regulation where total ionizing dose (TID) resistance is required.
What is the maximum power dissipation and derating behavior of JANS1N4620C-1/TR?
JANS1N4620C-1/TR is rated for 500 mW average power dissipation at 25 °C lead temperature, with linear derating beginning at +50 °C and reaching zero at +175 °C. This derating curve is defined in the Maximum Ratings table and Figure 2 of the official datasheet, ensuring predictable thermal performance in high-temp environments.
Does JANS1N4620C-1/TR have low noise characteristics suitable for precision references?
Yes, JANS1N4620C-1/TR exhibits a maximum noise density of 1 µV/√Hz at 250 mA, as specified in the Electrical Characteristics table. This low-noise performance is validated using a 1 kHz–3 kHz bandpass filter and directly supports use in precision analog references for high-resolution data converters and sensor signal chains.
What packaging and marking does JANS1N4620C-1/TR use?
JANS1N4620C-1/TR uses a hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with cathode identified by a single black band. The part is marked with its full JEDEC type number, and the "TR" suffix indicates tape-and-reel packaging per EIA-296 standard, as confirmed in the Mechanical and Packaging section of the datasheet.
JANS1N4620C-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.3 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1.65 Ohms
- Current - Reverse Leakage @ Vr:
- 3.5 µA @ 1.5 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4620C-1/TR FAQ
1.How can I place an order for JANS1N4620C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4620C-1/TR 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 JANS1N4620C-1/TR reliable?
The price and inventory of JANS1N4620C-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4620C-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4620C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4620C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4620C-1/TR?
JANS1N4620C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4620C-1/TR 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 JANS1N4620C-1/TR?
For technical support, including JANS1N4620C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4620C-1/TR requirements.
6.How does Aetrix verify that JANS1N4620C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4620C-1/TR 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 JANS1N4620C-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4620C-1/TR?
All JANS1N4620C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4620C-1/TR, 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 JANS1N4620C-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4620C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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