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Microchip Technology JAN1N4622-1
- Part No.:
- JAN1N4622-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4622-1.pdf
- Description:
- DIODE ZENER 3.9V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,506
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Product details
Overview
JAN1N4622-1 from Microsemi is a 500 mW, 3.9 V ±5% metallurgically bonded glass Zener diode in DO-35 package, qualified to JAN level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense systems. It delivers 250 mA Zener test current, 1650 Ω dynamic impedance at IZT, and -0.060 %/°C temperature coefficient.
For engineers reviewing the JAN1N4622-1 datasheet, JAN1N4622-1 pinout, JAN1N4622-1 application, or JAN1N4622-1 equivalent, key selection factors include its MIL-qualified reliability level, low-noise performance (1 µV/√Hz), axial-leaded DO-35 mechanical robustness, and thermal derating behavior from 500 mW at 25 °C to zero at 175 °C.
Technical Context
The JAN1N4622-1 operates as a precision shunt voltage regulator with a nominal Zener voltage of 3.9 V at 250 mA test current. Its internal metallurgical bond ensures stable breakdown characteristics under thermal cycling and radiation exposure.
It exhibits a negative temperature coefficient (-0.060 %/°C), low reverse leakage (2.5 µA at 3.0 V), and dynamic impedance of 1650 Ω at IZT - optimized for low-current reference stability rather than high-power clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.9 V ±5% at 250 mA - defines regulated output voltage tolerance in reference circuits |
| Power Dissipation | 500 mW @ TC = 25 °C - sets maximum continuous power before thermal derating begins at 50 °C |
| Dynamic Impedance ZZT | 1650 Ω @ 250 mA - indicates voltage regulation sensitivity to current changes in feedback loops |
| Temp Coefficient αVZ | -0.060 %/°C - enables predictable drift compensation in temperature-stable references |
| Noise Density ND | 1 µV/√Hz - supports low-noise analog sensing and precision ADC reference applications |
| Reverse Leakage IR | 2.5 µA @ 3.0 V - ensures minimal error current in high-impedance bias networks |
| Junction Temp Range | -65 to +175 °C - qualifies for extended-range operation in avionics and space-grade electronics |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode band marking; leads are tin-lead solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during Zener operation; used for forward-bias testing |
| Cathode (banded end) | Zener regulation terminal | Connected to higher-potential node; reverse-biased to maintain 3.9 V reference across load |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Meets military screening for burn-in, temperature cycling, and life testing - required for flight-critical subsystems |
| Metallurgical bond construction | Eliminates interfacial delamination risk under shock/vibration - critical for launch environments |
| Low noise density (1 µV/√Hz) | Enables use in high-resolution sensor signal chains without adding measurable RMS noise |
| Hermetic glass encapsulation | Prevents moisture ingress and parameter drift over decades - supports >20-year system lifetimes |
| ESD immunity (MIL-STD-750 Method 1020) | Withstands >4 kV HBM without parameter shift - simplifies handling in cleanroom assembly |
Applications
| Aerospace Power Reference | Defense System Bias Network |
|---|---|
Use Scenario: Providing stable 3.9 V reference for ADC front-end in satellite telemetry module operating across -55 to +125 °C. IC Role / Device Role / Timing Role: Shunt voltage reference regulating supply rail for precision analog-to-digital conversion. Use Value: -0.060 %/°C tempco and 1 µV/√Hz noise ensure <±0.5 LSB error over full temperature range. | Use Scenario: Setting bias point for RF amplifier stages in radar transceiver modules exposed to ESD and vibration. IC Role / Device Role / Timing Role: Zener-based DC bias generator ensuring consistent gain and linearity under transient stress. Use Value: Hermetic DO-35 package and MIL-qualified screening prevent parameter shift during field deployment. |
| Radiation-Hardened Sensor Interface | High-Reliability Industrial Controller |
Use Scenario: Voltage reference in nuclear plant monitoring sensor node requiring TID tolerance >100 krad(Si). IC Role / Device Role / Timing Role: Radiation-hardened shunt regulator maintaining reference integrity in ionizing environments. Use Value: Inherent radiation hardness per Microsemi MicroNote 050 eliminates need for shielding or redundancy. | Use Scenario: Overvoltage clamp and reference source in turbine control cabinet operating continuously at 70 °C ambient. IC Role / Device Role / Timing Role: Dual-role device providing both protection and precision reference in harsh industrial settings. Use Value: 500 mW rating with 250 °C/W junction-to-lead thermal resistance enables reliable operation without heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTX1N4622-1 | Same electrical specs; JANTX qualification adds extended temperature screening and lot traceability | Suitable for programs requiring broader environmental validation beyond JAN baseline | Select when program spec mandates JANTX-level testing or longer lot retention |
| 1N4622US | Same Zener voltage and DO-35 package; commercial-grade, RoHS-compliant, no MIL qualification | Limited to non-mission-critical industrial or lab-use applications | Select only for cost-sensitive prototypes where MIL-PRF-19500 compliance is not required |
Compared with JAN1N4622-1, JANTX1N4622-1 provides enhanced screening for extended temperature and life testing, while 1N4622US offers identical regulation performance without military qualification - enabling trade-offs between reliability assurance and procurement cost.
Availability
JAN1N4622-1 is available at Aetrix Electronics and suitable for aerospace power reference, defense system bias network, and radiation-hardened sensor interface applications requiring stable component supply across long production cycles and obsolescence-sensitive programs.
Supply support for JAN1N4622-1 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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The JAN1N4622-1 belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for voltage reference stability, radiation tolerance, and long-term parametric consistency in mission-critical systems.
FAQ
What is the Zener voltage tolerance for JAN1N4622-1?
JAN1N4622-1 has a nominal Zener voltage of 3.9 V with a standard tolerance of ±5%, as defined by JEDEC registration and confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This tolerance applies at 250 mA test current and 25 °C ambient temperature.
Is JAN1N4622-1 RoHS compliant?
No, JAN1N4622-1 is not RoHS compliant. Per the nomenclature guide on page 2, the "e3" suffix denotes RoHS compliance, which is available only on commercial-grade versions (e.g., 1N4622-1e3). The JAN prefix indicates military qualification with tin-lead plating per MIL-STD-750.
What is the maximum Zener current IZM for JAN1N4622-1?
The maximum Zener current IZM for JAN1N4622-1 is 80.0 mA, as specified in the Electrical Characteristics table on page 3. This value corresponds to the current at which the device reaches its rated 500 mW power dissipation at 25 °C lead temperature.
How does the temperature coefficient affect JAN1N4622-1 in circuit design?
JAN1N4622-1 has a temperature coefficient of -0.060 %/°C, meaning its Zener voltage decreases by approximately 2.34 mV per °C rise. Designers must account for this drift in precision references - especially over wide temperature ranges - using compensation networks or calibration routines.
Can JAN1N4622-1 be used as a replacement for 1N4622-1 in commercial designs?
JAN1N4622-1 shares identical electrical parameters with 1N4622-1 but adds JAN-level military screening per MIL-PRF-19500/435. It can functionally replace 1N4622-1 in commercial designs, though its higher cost and tin-lead finish may require process adjustments in RoHS-compliant assembly lines.
JAN1N4622-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 3.9 V
- Tolerance:
- ±5%
- 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)
JAN1N4622-1 FAQ
1.How can I place an order for JAN1N4622-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4622-1 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 JAN1N4622-1 reliable?
The price and inventory of JAN1N4622-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4622-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4622-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4622-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4622-1?
JAN1N4622-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4622-1 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 JAN1N4622-1?
For technical support, including JAN1N4622-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4622-1 requirements.
6.How does Aetrix verify that JAN1N4622-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4622-1 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 JAN1N4622-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4622-1?
All JAN1N4622-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4622-1, 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 JAN1N4622-1 part is unused and in its original packaging.
Return procedure for JAN1N4622-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4622-1 Tags
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