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Microchip Technology JAN1N4622D-1
- Part No.:
- JAN1N4622D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4622D-1.pdf
- Description:
- DIODE ZENER 3.9V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,445
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Product details
Overview
JAN1N4622D-1 from Microsemi is a 1% tolerance, 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 voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JAN1N4622D-1 datasheet, JAN1N4622D-1 pinout, JAN1N4622D-1 application, or JAN1N4622D-1 equivalent, key selection criteria include Zener voltage tolerance (±1%), dynamic impedance (1650 Ω @ 250 mA), noise density (1 µV/√Hz), temperature coefficient (–0.060 %/°C), and JANS-level radiation hardness.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 3.9 V at 250 mA test current, exhibiting low noise density (1 µV/√Hz) and negative temperature coefficient (–0.060 %/°C), enabling stable reference generation across –65 °C to +175 °C.
Its metallurgical bond construction ensures hermetic sealing and radiation hardness per Microsemi MicroNote 050, while the DO-35 axial-glass package supports flexible through-hole mounting and meets MIL-STD-750 solderability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.9 V ±1% at IZT = 250 mA - precise regulation point for low-voltage reference circuits |
| Power Dissipation | 500 mW at TL = 25 °C - supports stable operation in compact, unheatsinked designs |
| Dynamic Impedance ZZT | 1650 Ω @ 250 mA - defines regulation stiffness under varying load current |
| Noise Density | 1 µV/√Hz @ 250 mA - enables use in low-noise analog references and sensor excitation |
| Temp. Coefficient αVZ | –0.060 %/°C - ensures predictable, monotonic drift over wide temperature range |
| Max Reverse Current IR | 2.5 µA @ VR = 3.5 V - guarantees low leakage in standby and precision bias networks |
| Junction Temp. Range | –65 °C to +175 °C - validated for extreme-environment military and space applications |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; banded end is positive during Zener operation. Hermetically sealed, tin-lead plated leads, ~0.2 g weight, 1.0–1.5 inch lead length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; establishes reference potential |
| Cathode | Zener regulation terminal | Banded end; connected to regulated voltage rail; sinks current to maintain VZ |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 qualification | JANS-level screening ensures reliability for flight-critical and nuclear-hardened systems |
| Metallurgical bond construction | Eliminates interfacial voids, improving thermal stability and long-term parameter drift |
| Low noise density | 1 µV/√Hz enables use in precision analog front-ends without added filtering |
| Hermetic glass seal | Prevents moisture ingress and parametric shift in humid or corrosive environments |
| ESD robustness | Non-sensitive per MIL-STD-750 Method 1020 - no special handling required in assembly |
Applications
| Avionics Power Reference | Satellite DC-DC Monitor |
|---|---|
Use Scenario: Providing stable 3.9 V reference for ADCs and comparators in aircraft flight control power modules. IC Role / Device Role / Timing Role: Shunt voltage reference regulating feedback node of isolated DC-DC converters. Use Value: ±1% tolerance and –0.060 %/°C TC ensure <±20 mV drift over –55 °C to +125 °C operating range. | Use Scenario: Biasing radiation-tolerant op-amps in satellite bus voltage supervision circuits. IC Role / Device Role / Timing Role: Precision Zener reference in fault-detection comparators monitoring 5 V and 3.3 V rails. Use Value: JANS qualification and inherent radiation hardness eliminate need for shielding or derating. |
| Nuclear Instrumentation | Tactical Radio Bias Network |
Use Scenario: Generating calibrated bias voltages for Geiger-Müller tube preamplifiers in radiation survey meters. IC Role / Device Role / Timing Role: Low-noise (1 µV/√Hz), low-capacitance Zener reference for high-impedance detector interfaces. Use Value: Minimal capacitance (<1.5 pF) preserves signal rise time and avoids pulse distortion. | Use Scenario: Setting threshold voltages in battery undervoltage lockout and RF PA enable logic. IC Role / Device Role / Timing Role: Temperature-stable shunt regulator establishing logic-compatible trip points. Use Value: Stable 3.9 V output maintains consistent enable thresholds across –40 °C to +85 °C field conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4622US-1 | Same electrical specs but in DO-213AA surface-mount package; no axial leads | Required for automated SMT assembly; not suitable for through-hole prototyping or repair | Select when board space and reflow compatibility outweigh manual assembly needs |
| JANTXV1N4622D | Identical Zener parameters and 1% tolerance; differs only in qualification level (JANTXV vs JANS) | Approved for high-reliability programs requiring JANTXV screening but not full JANS radiation testing | Choose for cost-sensitive defense programs where full JANS testing is not mandated |
Compared with JAN1N4622D-1, 1N4622US-1 offers identical regulation performance in a surface-mount form factor, while JANTXV1N4622D provides equivalent electrical behavior with reduced screening depth-both serve distinct supply chain and qualification requirements without altering circuit design.
Availability
JAN1N4622D-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite DC-DC monitor, and nuclear instrumentation requiring stable component supply with guaranteed traceability and long-term obsolescence management.
Supply support for JAN1N4622D-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 MIL-PRF-19500/435 qualification, hermetic packaging, and stable Zener regulation under extreme thermal and radiation stress.
FAQ
What is the Zener voltage tolerance of JAN1N4622D-1?
JAN1N4622D-1 has a Zener voltage tolerance of ±1%, denoted by the "D" suffix in its nomenclature. This tight tolerance ensures the actual breakdown voltage remains within 3.861 V to 3.939 V at 250 mA test current and 25 °C, critical for precision reference applications where regulation accuracy directly impacts system measurement fidelity.
Is JAN1N4622D-1 suitable for space applications?
Yes, JAN1N4622D-1 is qualified to JANS level per MIL-PRF-19500/435 and exhibits inherent radiation hardness as documented in Microsemi MicroNote 050. Its metallurgically bonded, hermetically sealed DO-35 package and validated performance across –65 °C to +175 °C make it suitable for low-earth orbit and deep-space missions where single-event effects and total ionizing dose must be mitigated without external shielding.
What is the maximum Zener current IZM for JAN1N4622D-1?
The maximum Zener current IZM for JAN1N4622D-1 is 80.0 mA, derived from its 500 mW power rating and 3.9 V nominal Zener voltage (IZM = PM(AV)/VZ). This value assumes operation at 25 °C lead temperature; current must be linearly derated above 50 °C per the published power derating curve to avoid thermal runaway.
Does JAN1N4622D-1 have RoHS compliance?
No, JAN1N4622D-1 is not RoHS compliant. The "e3" RoHS suffix is only available on commercial-grade versions (e.g., 1N4622D-1e3); JAN-level parts use traditional tin-lead plating per MIL-STD-750 and are exempt from RoHS requirements due to their high-reliability military/aerospace use case.
How does the temperature coefficient affect JAN1N4622D-1 in real-world operation?
JAN1N4622D-1 has a temperature coefficient of –0.060 %/°C, meaning its Zener voltage decreases by approximately 2.34 mV per °C rise from 25 °C. Over a –55 °C to +125 °C range, this results in a total drift of ~–9.4 V × 0.0006 = –9.4 mV, supporting stable regulation in thermally aggressive environments without active compensation.
JAN1N4622D-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):
- 3.9 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1650 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
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JAN1N4622D-1 FAQ
1.How can I place an order for JAN1N4622D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4622D-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 JAN1N4622D-1 reliable?
The price and inventory of JAN1N4622D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4622D-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4622D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4622D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4622D-1?
JAN1N4622D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4622D-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 JAN1N4622D-1?
For technical support, including JAN1N4622D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4622D-1 requirements.
6.How does Aetrix verify that JAN1N4622D-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4622D-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 JAN1N4622D-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4622D-1?
All JAN1N4622D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4622D-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 JAN1N4622D-1 part is unused and in its original packaging.
Return procedure for JAN1N4622D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4622D-1 Tags
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