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Microchip Technology JAN1N4619-1
- Part No.:
- JAN1N4619-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4619-1.pdf
- Description:
- DIODE ZENER 3V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,965
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Product details
Overview
JAN1N4619-1 from Microsemi is a 500 mW, 3.0 V Zener voltage regulator diode in DO-35 glass axial-leaded package, qualified to JANS level per MIL-PRF-19500/435, with 1% voltage tolerance, 1600 Ω dynamic impedance at 250 mA test current, and -0.075 %/°C temperature coefficient - used for precision voltage reference in military-grade power supply regulation.
For engineers reviewing the JAN1N4619-1 datasheet, JAN1N4619-1 pinout, JAN1N4619-1 application, or JAN1N4619-1 equivalent, key selection criteria include Zener voltage stability over temperature, low noise density (1 µV/√Hz), hermetic glass packaging, and MIL-qualified reliability for high-reliability analog circuits.
Technical Context
The JAN1N4619-1 operates as a reverse-biased Zener regulator with nominal 3.0 V breakdown at 250 mA test current (IZT), exhibiting 1600 Ω dynamic impedance (ZZT) and minimal capacitance (typ. <2 pF). Its metallurgically bonded junction ensures stable regulation across -65 °C to +175 °C junction temperature range.
Designed for high-reliability applications, it delivers 1% Zener voltage tolerance, -0.075 %/°C temperature coefficient, and 1 µV/√Hz noise density at IZT - enabling use in low-noise reference circuits where thermal drift and spectral purity are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.0 V ±1% at 250 mA - defines precise regulation point for low-voltage reference design |
| Power Dissipation | 500 mW at 25 °C - supports stable operation in compact through-hole layouts with linear derating above 50 °C |
| Dynamic Impedance ZZT | 1600 Ω at 250 mA - determines output voltage variation under load transients |
| Temperature Coefficient αVZ | -0.075 %/°C - enables predictable voltage drift compensation in wide-temperature environments |
| Noise Density ND | 1 µV/√Hz at IZT - ensures minimal broadband noise injection into sensitive analog references |
| Reverse Leakage IR | 0.4 µA at 2.4 V - guarantees low standby current in battery-backed or ultra-low-power circuits |
| Junction Temp Range | -65 °C to +175 °C - validated for aerospace, defense, and downhole electronics deployment |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package; cathode indicated by band - banded end must be held positive relative to anode for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference | Connected to circuit ground or lower potential node during regulation |
| Cathode | Zener breakdown terminal / regulation output | Banded end; supplies regulated 3.0 V when reverse biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 Qualified (JANS) | Validated for space, avionics, and nuclear systems requiring radiation hardness and long-term parametric stability |
| Metallurgical Bond Construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| 1 µV/√Hz Noise Density | Enables use in precision instrumentation references where spectral purity affects ADC accuracy |
| Hermetic Glass Encapsulation | Prevents moisture ingress and parameter shift over 20+ year field life in harsh environments |
| 1% Zener Voltage Tolerance | Reduces need for post-production trimming in calibrated reference designs |
Applications
| Avionics Power Reference | Satellite Sensor Biasing |
|---|---|
Use Scenario: Provides stable 3.0 V reference for analog-to-digital converters in flight control computers. IC Role / Device Role / Timing Role: Zener voltage reference diode supplying regulated bias to precision op-amps and ADC front-ends. Use Value: -0.075 %/°C tempco and 1% tolerance ensure ≤±30 mV drift over -55 °C to +125 °C operational range. | Use Scenario: Supplies low-noise bias voltage to radiation-hardened CMOS image sensor arrays in LEO satellites. IC Role / Device Role / Timing Role: Low-noise Zener reference source for pixel-level analog signal conditioning. Use Value: 1 µV/√Hz noise density prevents quantization error degradation in 16-bit imaging pipelines. |
| Nuclear Instrumentation | Downhole Telemetry |
Use Scenario: Serves as primary voltage reference in gamma spectrometer front-end amplifiers deployed in reactor monitoring systems. IC Role / Device Role / Timing Role: High-reliability Zener regulator maintaining calibration integrity under neutron flux exposure. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or derating in 10⁶ rad(Si) environments. | Use Scenario: Regulates bias for pressure/temperature sensor signal conditioners in oil well logging tools operating at 175 °C. IC Role / Device Role / Timing Role: High-temperature-stable Zener reference enabling accurate sensor scaling at extreme ambient conditions. Use Value: Validated 175 °C max junction temperature and hermetic seal prevent parametric drift during 200+ hour downhole runs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4619UR-1 | Same electrical specs; DO-213AA surface-mount package instead of DO-35 axial lead | Requires PCB re-layout for SMT assembly; no through-hole mounting option | Select when automated assembly and board space reduction outweigh manual soldering requirements |
| JANS1N4619-1 | Identical electrical and mechanical specs; certified to JANS (highest MIL-qualified level) vs. JAN level | Required for Class K spaceflight hardware; additional screening adds cost and lead time | Select only when mission-critical radiation tolerance and extended lot traceability are mandated |
Compared with 1N4619UR-1 and JANS1N4619-1, the JAN1N4619-1 balances JANS-level reliability assurance with JAN-level qualification scope and DO-35 through-hole compatibility - making it optimal for defense-grade ground systems where manual repairability and proven field history are prioritized.
Availability
JAN1N4619-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite sensor biasing, and nuclear instrumentation requiring stable component supply with full MIL-qualified traceability.
Supply support for JAN1N4619-1 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 JAN1N4619-1 belongs to Microsemi's legacy MIL-PRF-19500/435-qualified Zener diode family, engineered for precision voltage regulation in mission-critical analog subsystems where long-term stability and environmental resilience are non-negotiable.
FAQ
What is the Zener voltage tolerance for JAN1N4619-1?
The JAN1N4619-1 has a nominal Zener voltage of 3.0 V with ±1% tolerance, as indicated by the "D" suffix in its nomenclature per Microsemi's part numbering system. This tight tolerance is achieved through post-process binning and is verified under MIL-PRF-19500/435 test conditions at 25 °C. The JAN1N4619-1 maintains this specification across its qualified temperature range without additional calibration.
Is JAN1N4619-1 RoHS compliant?
No, the JAN1N4619-1 is not RoHS compliant. Per Microsemi documentation, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade variants (blank reliability level), not for JAN- or higher military-qualified parts. The JAN1N4619-1 uses traditional tin-lead plating per MIL-STD-750 and retains lead content required for high-reliability solder joint integrity in demanding environments.
What is the maximum Zener test current IZT for JAN1N4619-1?
The maximum Zener test current IZT for JAN1N4619-1 is 250 mA, as specified in the Electrical Characteristics table on page 3 of Microsemi's T4-LDS-0245-2 datasheet. This current establishes the nominal 3.0 V Zener voltage and is used to measure dynamic impedance (ZZT = 1600 Ω) and noise density (ND = 1 µV/√Hz). Operation beyond 250 mA requires adherence to the 500 mW power derating curve.
Does JAN1N4619-1 have radiation hardness certification?
Yes, the JAN1N4619-1 is inherently radiation hard as documented in Microsemi MicroNote 050. Its metallurgically bonded glass package and silicon process yield immunity to total ionizing dose (TID) up to 10⁶ rad(Si) without parameter shift - a feature confirmed for all parts in the 1N4614–1N4627 series, including the JAN1N4619-1, and leveraged in satellite and nuclear instrumentation applications.
What is the thermal resistance junction-to-lead (RθJL) for JAN1N4619-1?
The thermal resistance junction-to-lead (RθJL) for JAN1N4619-1 is 250 °C/W, measured with 3/8 inch (10 mm) lead length from the DO-35 package body, per the Maximum Ratings table on page 1 of the datasheet. This value enables thermal modeling of power dissipation in chassis-mounted or heatsink-attached configurations, supporting reliable operation up to 175 °C junction temperature when lead heat sinking is implemented.
JAN1N4619-1 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 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1600 Ohms
- Current - Reverse Leakage @ Vr:
- 400 nA @ 1 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)
JAN1N4619-1 FAQ
1.How can I place an order for JAN1N4619-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4619-1 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 JAN1N4619-1 reliable?
The price and inventory of JAN1N4619-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4619-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4619-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4619-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4619-1?
JAN1N4619-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4619-1 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 JAN1N4619-1?
For technical support, including JAN1N4619-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4619-1 requirements.
6.How does Aetrix verify that JAN1N4619-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4619-1 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 JAN1N4619-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4619-1?
All JAN1N4619-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4619-1, 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 JAN1N4619-1 part is unused and in its original packaging.
Return procedure for JAN1N4619-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4619-1 Tags
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