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Microchip Technology JANS1N4622C-1/TR
- Part No.:
- JANS1N4622C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4622C-1/TR.pdf
- Description:
- DIODE ZENER 3.9V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,855
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Product details
Overview
JANS1N4622C-1/TR from Microsemi is a 3.9 V, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications. It delivers 2% Zener voltage tolerance, 1650 Ω dynamic impedance at 250 mA test current, and operates across –65 °C to +175 °C junction temperature range.
For engineers reviewing the JANS1N4622C-1/TR datasheet, JANS1N4622C-1/TR pinout, JANS1N4622C-1/TR application, or JANS1N4622C-1/TR equivalent, key selection criteria include Zener voltage accuracy, radiation hardness, thermal resistance (250 °C/W junction-to-lead), low noise density (1 µV/√Hz), and MIL-spec qualification level.
Technical Context
This device functions as a precision voltage reference and regulator in analog signal conditioning, power supply feedback, and overvoltage protection circuits. Its metallurgical bond construction ensures stable Zener characteristics under thermal cycling and mechanical stress, while its hermetically sealed DO-35 glass package maintains reliability in harsh environments.
The JANS1N4622C-1/TR exhibits a temperature coefficient of –0.060 %/°C and supports regulation at currents from 250 mA (IZT) up to 80 mA (IZM), with reverse leakage limited to ≤2.5 µA at VR = 3.0 V and ≤2.0 µA at VR = 3.6 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.9 V ±2% at 250 mA - enables precise 3.9 V reference generation with tight tolerance for feedback loops. |
| Power Dissipation | 500 mW @ TC = 25 °C - supports stable operation in compact, conduction-cooled designs without forced airflow. |
| Dynamic Impedance ZZT | 1650 Ω @ IZT = 250 mA - defines regulation stiffness; lower values improve load regulation in precision references. |
| Temperature Range | –65 °C to +175 °C - certified for extended-range operation in space, avionics, and downhole electronics. |
| Noise Density ND | 1 µV/√Hz @ IZT - ultra-low broadband noise critical for low-noise analog front-ends and sensor biasing. |
| Thermal Resistance RθJL | 250 °C/W @ 10 mm lead length - determines junction temperature rise under load; guides heatsinking and PCB layout. |
| Reverse Leakage IR | ≤2.5 µA @ VR = 3.0 V - ensures minimal error current in high-impedance reference nodes. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; operated with banded end positive for Zener regulation. Tin-lead or RoHS-compliant matte-tin plating; solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; establishes reference potential for regulation. |
| Cathode | Zener output terminal | Provides regulated 3.9 V output when reverse-biased; marked with band on glass body. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated for Class S (space-level) reliability with full lot traceability and screening per military standards. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock, ensuring long-term parameter stability in cyclic environments. |
| Low noise density (1 µV/√Hz) | Enables use in ultra-low-noise analog circuits such as precision instrumentation amplifiers and ADC reference buffers. |
| Hermetic glass DO-35 package | Prevents moisture ingress and corrosion, supporting >20-year shelf life and operation in high-humidity or vacuum conditions. |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - suitable for TID > 100 krad(Si) environments without derating. |
Applications
| Aerospace Power Monitoring | Defense System Reference |
|---|---|
Use Scenario: Monitoring bus voltage in satellite power distribution units using discrete analog comparators. IC Role / Device Role / Timing Role: Zener reference source for comparator threshold setting and ADC calibration. Use Value: Stable 3.9 V reference with <±2% tolerance and –65 °C to +175 °C operation ensures consistent trip points across orbital thermal cycles. | Use Scenario: Providing bias voltage for RF detector diodes in radar warning receivers. IC Role / Device Role / Timing Role: Low-noise DC bias generator for Schottky detector elements. Use Value: 1 µV/√Hz noise density prevents signal masking in weak-RF detection; JANS qualification guarantees mission-critical uptime. |
| Avionics Sensor Interface | Nuclear Instrumentation |
Use Scenario: Supplying excitation voltage to strain-gauge bridges in flight control sensors. IC Role / Device Role / Timing Role: Precision excitation reference in ratiometric measurement chains. Use Value: Tight 2% VZ tolerance and low TC (–0.060 %/°C) minimize bridge offset drift across cabin temperature gradients. | Use Scenario: Regulating bias for ionization chamber preamplifiers in reactor monitoring systems. IC Role / Device Role / Timing Role: Radiation-hardened voltage reference in high-TID environments. Use Value: Inherent radiation tolerance eliminates need for shielding or derating; DO-35 hermeticity prevents gas permeation in containment zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4622C-1 | Same electrical specs but qualified to JANTXV level (not JANS); lacks Class S screening and radiation characterization. | Suitable for high-reliability ground-based military systems where full space qualification is not required. | Select JANTXV1N4622C-1 only if JANS-level radiation hardness and extended burn-in are unnecessary. |
| 1N4622C-1/TR | Commercial-grade version; RoHS-compliant (e3 suffix), no MIL-qualification, rated –65 °C to +175 °C but untested per MIL-PRF-19500. | Applicable in industrial or commercial aerospace-adjacent designs with cost sensitivity and no formal qualification mandate. | Choose 1N4622C-1/TR only for non-mission-critical prototypes or cost-driven volume production without MIL-spec enforcement. |
Compared with JANS1N4622C-1/TR, JANTXV1N4622C-1 offers identical performance but reduced screening depth, while 1N4622C-1/TR sacrifices qualification for RoHS compliance and lower cost-making JANS1N4622C-1/TR the sole choice for radiation-intensive, life-critical deployments.
Availability
JANS1N4622C-1/TR is available at Aetrix Electronics and suitable for aerospace power monitoring, defense system reference, and avionics sensor interface applications requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANS1N4622C-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 analog and mixed-signal components for aerospace, defense, and industrial markets.
The 1N46xx series was designed specifically for MIL-qualified Zener regulation in radiation-exposed, thermally extreme, and long-lifecycle systems-emphasizing metallurgical bond integrity, hermetic packaging, and verified parametric stability.
FAQ
What is the Zener voltage tolerance and test current for JANS1N4622C-1/TR?
JANS1N4622C-1/TR has a nominal Zener voltage of 3.9 V with ±2% tolerance, measured at a Zener test current (IZT) of 250 mA. This tolerance is guaranteed across the full operating temperature range and qualifies the device for precision reference use in feedback networks and voltage monitors.
Is JANS1N4622C-1/TR radiation hardened?
Yes, JANS1N4622C-1/TR is inherently radiation hard per Microsemi MicroNote 050. It is qualified to JANS level per MIL-PRF-19500/435 and suitable for total ionizing dose (TID) environments exceeding 100 krad(Si), making it appropriate for satellite and nuclear instrumentation applications.
What is the maximum Zener current (IZM) rating for JANS1N4622C-1/TR?
The maximum Zener current (IZM) for JANS1N4622C-1/TR is 80 mA. This value is derived from the 500 mW power rating and the 3.9 V Zener voltage, and reflects the upper limit of continuous dc current before thermal runaway risk increases significantly.
Does JANS1N4622C-1/TR have low noise performance?
Yes, JANS1N4622C-1/TR delivers ultra-low noise density of 1 µV/√Hz at IZT = 250 mA. This specification is confirmed in the manufacturer's electrical characteristics table and makes JANS1N4622C-1/TR suitable for low-noise analog circuits including precision ADC references and RF detector biasing.
What packaging and marking does JANS1N4622C-1/TR use?
JANS1N4622C-1/TR uses the hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with cathode indicated by a band. The part is marked with its full type number and supplied in tape-and-reel format per EIA-296, as denoted by the "TR" suffix.
JANS1N4622C-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):
- 3.9 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1.65 Ohms
- Current - Reverse Leakage @ Vr:
- 2.5 µA @ 2 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)
JANS1N4622C-1/TR FAQ
1.How can I place an order for JANS1N4622C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4622C-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 JANS1N4622C-1/TR reliable?
The price and inventory of JANS1N4622C-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 JANS1N4622C-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4622C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4622C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4622C-1/TR?
JANS1N4622C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4622C-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 JANS1N4622C-1/TR?
For technical support, including JANS1N4622C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4622C-1/TR requirements.
6.How does Aetrix verify that JANS1N4622C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4622C-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 JANS1N4622C-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4622C-1/TR?
All JANS1N4622C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4622C-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 JANS1N4622C-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4622C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANS1N4622C-1/TR Tags
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