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Microchip Technology JAN1N4620D-1
- Part No.:
- JAN1N4620D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4620D-1.pdf
- Description:
- DIODE ZENER 3.3V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,922
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Product details
Overview
JAN1N4620D-1 from Microsemi is a 500 mW, 3.3 V Zener diode in DO-35 glass package, qualified to JANS level per MIL-PRF-19500/435, with 1% voltage tolerance, 1650 Ω dynamic impedance at 250 mA test current, and 3.5 µA maximum reverse leakage at 2.5 V. It serves as a precision voltage reference in military-grade power regulation circuits.
For engineers reviewing the JAN1N4620D-1 datasheet, JAN1N4620D-1 pinout, JAN1N4620D-1 application, or JAN1N4620D-1 equivalent, key selection criteria include Zener voltage tolerance (1%), junction temperature range (–65 °C to +175 °C), metallurgical bond construction, noise density (1 µV/√Hz), and MIL-qualified reliability level.
Technical Context
This device operates in reverse breakdown to maintain stable 3.3 V regulation across wide current (250 mA IZT) and temperature (–65 °C to +175 °C) ranges. Its internal metallurgical bond ensures mechanical robustness and low thermal resistance (RθJL = 250 °C/W).
Designed for high-reliability environments, it delivers 1% Zener voltage tolerance, exhibits minimal capacitance (typical <2 pF), and features cathode band polarity marking. Noise density is specified at 1 µV/√Hz - among the lowest in the 1N46xx-1 series for sub-4 V devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.3 V ±1% at 250 mA - enables precise low-voltage reference in analog sensing and biasing circuits. |
| Power Dissipation | 500 mW at 25 °C, derated linearly to zero at 175 °C - supports operation in high-temp military enclosures without forced cooling. |
| Dynamic Impedance ZZT | 1650 Ω at 250 mA - indicates moderate regulation stiffness suitable for non-critical reference loads. |
| Reverse Leakage IR | ≤3.5 µA at VR = 2.5 V - ensures low standby current in battery-backed monitoring systems. |
| Noise Density ND | 1 µV/√Hz at IZT - critical for low-noise instrumentation amplifiers and precision ADC reference buffers. |
| Temp Coefficient αVZ | –0.075 %/°C - predictable negative drift allows compensation in temperature-stable references. |
| Junction Temp Range | –65 °C to +175 °C - validated for aerospace avionics, downhole oil/gas electronics, and missile guidance subsystems. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package. Cathode identified by single black band; banded end must be held positive relative to anode for Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit common; reverse-biased configuration requires this node at lower potential than cathode. |
| Cathode | Zener regulation output / voltage reference node | Banded end; supplies regulated 3.3 V to load when reverse-biased above breakdown threshold. |
Key Features
| Feature | Design Value |
|---|---|
| Internal metallurgical bond | Eliminates wire-bond fatigue failure modes - essential for long-life space and defense platforms. |
| MIL-PRF-19500/435 qualification | JANS-level screening includes burn-in, temperature cycling, and hermeticity testing - meets Class S requirements. |
| Low noise density | 1 µV/√Hz at 3.3 V - enables use in high-resolution data acquisition front-ends without added filtering. |
| 1% Zener tolerance | Reduces need for post-calibration trimming in field-deployed systems - lowers test cost and improves yield. |
| Hermetic glass package | Immune to moisture ingress and ionic contamination - certified for 10+ year operation in humid tropical deployments. |
Applications
| Avionics Power Monitoring | Downhole Sensor Biasing |
|---|---|
Use Scenario: Real-time voltage supervision of 28 V DC aircraft bus using discrete comparator-based fault detection. IC Role / Device Role / Timing Role: Zener reference for LM393 comparator hysteresis threshold generation. Use Value: Stable 3.3 V reference ensures consistent trip point across –55 °C to +125 °C ambient, meeting RTCA DO-160 Section 22 Category A. | Use Scenario: Providing bias voltage to piezoresistive pressure transducers in oil well logging tools operating at 175 °C. IC Role / Device Role / Timing Role: Low-drift voltage reference for Wheatstone bridge excitation. Use Value: –0.075 %/°C tempco and JANS qualification guarantee calibration stability over full downhole thermal cycle. |
| Military Radio RF Stage Bias | Satellite Payload Voltage Clamp |
Use Scenario: Setting gate bias for GaAs FETs in UHF transceiver front-end amplifiers exposed to shock/vibe. IC Role / Device Role / Timing Role: Zener clamp regulating drain supply rail during transient overload events. Use Value: Metallurgically bonded construction withstands 20 g RMS vibration per MIL-STD-810H Method 514.7, preventing parametric shift. | Use Scenario: Protecting ADC input stages from ESD-induced overvoltage in LEO satellite telemetry modules. IC Role / Device Role / Timing Role: Low-capacitance (≈1.5 pF) clamping diode shunting transients to ground. Use Value: Minimal capacitance preserves signal integrity up to 100 MHz while surviving >15 kV HBM per MIL-STD-750 Method 1020. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4620US-1 | Same electrical specs, but in surface-mount DO-213AA package - no axial leads. | Requires rework of PCB layout; eliminates manual through-hole insertion but increases reflow sensitivity. | Select when automated SMT assembly is mandatory and thermal mass constraints allow DO-213AA mounting. |
| JANTXV1N4620D | Identical Zener parameters and 1% tolerance, but qualified only to JANTXV (not JANS); RθJA = 300 °C/W vs. 250 °C/W. | Approved for airborne but not spaceflight; unsuitable for radiation-hardened missions requiring JANS screening. | Select for cost-sensitive airborne programs where full JANS screening adds unnecessary overhead. |
Compared with JAN1N4620D-1, 1N4620US-1 offers identical regulation performance in SMT form but sacrifices lead-form flexibility, while JANTXV1N4620D reduces qualification rigor and thermal performance - both require explicit validation against mission-specific reliability requirements.
Availability
JAN1N4620D-1 is available at Aetrix Electronics and suitable for avionics power monitoring, downhole sensor biasing, and military radio RF stage bias requiring stable component supply under extended temperature and radiation exposure conditions.
Supply support for JAN1N4620D-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 1N46xx-1 series was developed specifically to meet MIL-PRF-19500/435 requirements for hermetic, low-noise, metallurgically bonded Zener diodes used in precision voltage reference and regulation subsystems.
FAQ
What is the Zener voltage tolerance of JAN1N4620D-1?
JAN1N4620D-1 has a nominal Zener voltage of 3.3 V with ±1% tolerance, confirmed per the "D" suffix in its nomenclature and verified in Table on Page 3 of T4-LDS-0245-2 Rev. 1. This tight tolerance eliminates need for external trimming in calibrated military systems and ensures repeatable performance across production lots.
Is JAN1N4620D-1 suitable for space applications?
JAN1N4620D-1 is qualified to JANS level per MIL-PRF-19500/435, which includes radiation hardness assurance per Microsemi MicroNote 050 and full lot acceptance testing required for spaceflight. Its hermetic DO-35 package and metallurgical bond make JAN1N4620D-1 appropriate for LEO and GEO satellite payload regulation circuits.
What is the maximum reverse leakage current for JAN1N4620D-1?
The maximum reverse leakage current (IR) for JAN1N4620D-1 is 3.5 µA at VR = 2.5 V, as specified in the Electrical Characteristics table on Page 3 of T4-LDS-0245-2 Rev. 1. This low leakage supports ultra-low-power operation in battery-backed telemetry nodes and ensures minimal loading on high-impedance reference dividers.
Does JAN1N4620D-1 have RoHS compliance?
No - JAN1N4620D-1 is a JANS-qualified military part with tin-lead plating per MIL-STD-750 Method 2026 and is not RoHS compliant. RoHS-compliant versions (e3 suffix) are available only for commercial-grade variants such as 1N4620D-1e3, not for JAN-level parts.
What is the thermal resistance junction-to-lead for JAN1N4620D-1?
JAN1N4620D-1 has a thermal resistance junction-to-lead (RθJL) of 250 °C/W when mounted with 3/8 inch (10 mm) lead length from body, per Maximum Ratings table on Page 1 of T4-LDS-0245-2 Rev. 1. This value enables accurate junction temperature estimation in conduction-cooled chassis designs.
JAN1N4620D-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:
- ±1%
- 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)
JAN1N4620D-1 FAQ
1.How can I place an order for JAN1N4620D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4620D-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 JAN1N4620D-1 reliable?
The price and inventory of JAN1N4620D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4620D-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4620D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4620D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4620D-1?
JAN1N4620D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4620D-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 JAN1N4620D-1?
For technical support, including JAN1N4620D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4620D-1 requirements.
6.How does Aetrix verify that JAN1N4620D-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4620D-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 JAN1N4620D-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4620D-1?
All JAN1N4620D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4620D-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 JAN1N4620D-1 part is unused and in its original packaging.
Return procedure for JAN1N4620D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4620D-1 Tags
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