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Microchip Technology JAN1N4620-1
- Part No.:
- JAN1N4620-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4620-1.pdf
- Description:
- DIODE ZENER 3.3V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,045
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Product details
Overview
JAN1N4620-1 from Microsemi is a 500 mW, 3.3 V Zener diode in DO-35 glass package, qualified to JAN level per MIL-PRF-19500/435, with 5% voltage tolerance, 1650 Ω dynamic impedance at 250 mA test current, and 3.5 µA maximum reverse leakage at rated voltage. It serves as a precision voltage reference in military-grade power regulation and analog signal conditioning circuits.
For engineers reviewing the JAN1N4620-1 datasheet, JAN1N4620-1 pinout, JAN1N4620-1 application, or JAN1N4620-1 equivalent, key selection criteria include its MIL-qualified reliability, low-noise performance (1 µV/√Hz), axial-leaded DO-35 mechanical form factor, and thermal derating behavior from 500 mW at 25 °C to zero at 175 °C.
Technical Context
This device operates in reverse-bias breakdown mode with a nominal Zener voltage of 3.3 V at 250 mA test current (IZT), exhibiting a temperature coefficient of –0.075 %/°C and dynamic impedance of 1650 Ω. Its metallurgically bonded construction ensures stable regulation across wide current and temperature ranges.
Designed for high-reliability applications, JAN1N4620-1 meets MIL-PRF-19500/435 requirements for JAN-level qualification, features hermetically sealed glass packaging, and delivers minimal capacitance (<2 pF typical) and ESD immunity per MIL-STD-750 method 1020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.3 V at 250 mA - defines precise regulation point for low-voltage reference circuits |
| Power Dissipation | 500 mW at 25 °C - supports stable operation in compact through-hole designs with linear derating above 50 °C |
| Dynamic Impedance (ZZT) | 1650 Ω at IZT - indicates moderate regulation stiffness; suitable for non-critical reference loads |
| Reverse Leakage (IR) | 3.5 µA at rated VR - ensures low quiescent current draw in battery-backed or low-power monitoring systems |
| Noise Density (ND) | 1 µV/√Hz - enables use in low-noise analog front-ends where reference stability affects ADC accuracy |
| Temp Coefficient (αVZ) | –0.075 %/°C - provides predictable, negative drift over temperature for compensated reference designs |
| Package | DO-35 (DO-204AH) - axial-leaded glass envelope enabling manual soldering, high-voltage isolation, and hermetic sealing |
Pinout & Package
The JAN1N4620-1 is a two-terminal axial-leaded Zener diode in the DO-35 (DO-204AH) glass package. Polarity is marked by a cathode band; the banded end must be held positive relative to the anode for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit common or lower-potential node; establishes reference return path during regulation |
| Cathode (banded end) | Zener breakdown terminal / regulated output node | Supplies stable 3.3 V when reverse-biased; requires current-limiting resistor to control IZ within 250 mA ±10% |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Guarantees screening, testing, and traceability for defense/aerospace deployments requiring documented reliability |
| Metallurgical bond construction | Ensures long-term parameter stability under thermal cycling and mechanical stress in harsh environments |
| Low noise density (1 µV/√Hz) | Minimizes voltage reference jitter in precision instrumentation amplifiers and high-resolution data acquisition |
| Hermetically sealed glass DO-35 | Provides >1000 V isolation, moisture resistance, and immunity to outgassing in vacuum or sealed enclosures |
| Non-ESD-sensitive design | Eliminates need for handling controls beyond standard JEDEC practices-reduces assembly risk in production lines |
Applications
| Avionics Power Monitoring | Military Radio Bias Supply |
|---|---|
Use Scenario: Monitoring 28 V aircraft bus voltage via resistive divider into ADC input. IC Role / Device Role / Timing Role: Precision 3.3 V reference for ADC reference rail and comparator threshold setting. Use Value: Stable –0.075 %/°C drift and <3.5 µA leakage ensure accurate bus voltage reporting across –55 °C to +125 °C operational range. | Use Scenario: Providing bias voltage to RF power amplifier stages in HF/VHF transceivers. IC Role / Device Role / Timing Role: Low-noise Zener shunt regulator stabilizing amplifier supply rails against load transients. Use Value: 1 µV/√Hz noise density prevents AM sideband distortion; DO-35 glass package withstands vibration and humidity exposure. |
| Satellite Payload Sensor Interface | Tactical Data Link Reference |
Use Scenario: Calibrating radiation-hardened temperature sensors in LEO satellite subsystems. IC Role / Device Role / Timing Role: Primary voltage reference for sensor excitation and analog-to-digital conversion chain. Use Value: Inherent radiation hardness per MicroNote 050 and JAN-level screening enable operation without degradation in total ionizing dose up to 100 krad(Si). | Use Scenario: Generating stable thresholds for digital logic level translation in encrypted data modems. IC Role / Device Role / Timing Role: Dual-purpose Zener clamp and reference for TTL/CMOS interface protection and level alignment. Use Value: 500 mW power rating allows transient surge absorption while maintaining 3.3 V regulation during ESD events per MIL-STD-461. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4620US | Same 3.3 V Zener voltage and DO-35 package but commercial-grade (non-mil-qualified); RoHS-compliant matte-tin plating. | Lacks JAN-level screening, burn-in, and traceability; unsuitable for flight hardware or Class H applications. | Select when cost, lead time, or RoHS compliance outweighs military qualification requirements. |
| 1N4620-1 | Identical electrical specs and DO-35 package; differs only in reliability level (commercial vs. JAN); same 5% tolerance and 250 mA IZT. | No MIL-PRF-19500/435 qualification; not screened for temperature cycling, hermeticity, or radiation hardness. | Choose for prototyping, ground-test equipment, or non-safety-critical industrial systems where mil-spec is unnecessary. |
Compared with 1N4620US and 1N4620-1, JAN1N4620-1 provides verified JAN-level reliability, radiation tolerance, and full traceability-critical for avionics, space, and secure comms where failure modes must be pre-qualified and documented.
Availability
JAN1N4620-1 is available at Aetrix Electronics and suitable for avionics power monitoring, military radio bias supply, and satellite payload sensor interface applications requiring stable component supply, long-term obsolescence management, and full MIL-spec compliance.
Supply support for JAN1N4620-1 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.
JAN1N4620-1 belongs to Microsemi's legacy 1N46xx-1 Zener diode family, engineered specifically for military, space, and critical infrastructure applications demanding guaranteed parametric stability and extended temperature operation.
FAQ
What is the Zener voltage tolerance for JAN1N4620-1?
JAN1N4620-1 has a nominal Zener voltage of 3.3 V with a standard tolerance of ±5%, as defined in the JEDEC specification and confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This tolerance applies under thermal equilibrium at 25 °C with 250 mA test current.
Does JAN1N4620-1 require external current limiting?
Yes, JAN1N4620-1 requires an external series current-limiting resistor to maintain Zener current between minimum knee current (IZK) and maximum rated current (IZM = 85 mA). Operating outside this range risks unstable regulation or thermal runaway. The resistor value must be calculated based on input voltage, 3.3 V drop, and desired IZ.
Is JAN1N4620-1 compatible with lead-free soldering processes?
JAN1N4620-1 is qualified for soldering at 260 °C for 10 seconds per MIL-STD-750 method 2026. While the part itself is not RoHS-compliant (JAN level uses tin-lead plating), it withstands lead-free reflow profiles when mounted with appropriate thermal management and lead length per datasheet derating curves.
What is the maximum junction temperature for JAN1N4620-1?
The maximum junction and storage temperature for JAN1N4620-1 is +175 °C, with a minimum of –65 °C. Power dissipation must be linearly derated from 500 mW at 25 °C ambient to zero at 175 °C, as shown in Figure 2 of the datasheet. Thermal resistance junction-to-lead is 250 °C/W at 10 mm lead length.
How does the noise performance of JAN1N4620-1 compare to higher-voltage Zeners?
JAN1N4620-1 exhibits 1 µV/√Hz noise density at 250 mA, consistent with the family trend where noise falls rapidly below 6.8 V. This is significantly lower than 40 µV/√Hz observed at 6.8 V and above, making JAN1N4620-1 preferable for ultra-low-noise 3.3 V reference designs in sensitive analog circuits.
JAN1N4620-1 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):
- 3.3 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1650 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
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JAN1N4620-1 FAQ
1.How can I place an order for JAN1N4620-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4620-1 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 JAN1N4620-1 reliable?
The price and inventory of JAN1N4620-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4620-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4620-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4620-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4620-1?
JAN1N4620-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4620-1 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 JAN1N4620-1?
For technical support, including JAN1N4620-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4620-1 requirements.
6.How does Aetrix verify that JAN1N4620-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4620-1 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 JAN1N4620-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4620-1?
All JAN1N4620-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4620-1, 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 JAN1N4620-1 part is unused and in its original packaging.
Return procedure for JAN1N4620-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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