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Microchip Technology JANS1N4623C-1/TR
- Part No.:
- JANS1N4623C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4623C-1/TR.pdf
- Description:
- DIODE ZENER 4.3V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,956
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Product details
Overview
JANS1N4623C-1/TR from Microsemi is a 500 mW, 4.3 V Zener voltage regulator diode in DO-35 glass package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications. It features 2% Zener voltage tolerance, 1600 Ω dynamic impedance at 250 mA test current, and operates across –65 °C to +175 °C junction temperature range.
For engineers reviewing the JANS1N4623C-1/TR datasheet, JANS1N4623C-1/TR pinout, JANS1N4623C-1/TR application, or JANS1N4623C-1/TR equivalent, key selection criteria include Zener voltage accuracy, radiation hardness, thermal resistance (250 °C/W junction-to-lead), noise density (1 µV/√Hz), and military qualification level - all critical for precision voltage reference and regulation in harsh-environment systems.
Technical Context
This device is a metallurgically bonded, hermetically sealed axial-leaded Zener diode designed for stable voltage regulation under wide current and temperature variations. Its internal bond structure ensures low noise density (1 µV/√Hz at 4.3 V) and inherent radiation hardness per Microsemi MicroNote 050.
It operates with cathode-banded polarity and requires reverse-bias configuration (banded end positive) for Zener regulation. The DO-35 package supports flexible through-hole mounting and meets MIL-STD-750 solderability requirements with tin-lead or RoHS-compliant matte-tin plating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 4.3 V ±2% at 250 mA - enables precise low-voltage reference in analog power rails and sensor biasing circuits. |
| Power Dissipation | 500 mW at 25 °C lead temperature - supports continuous regulation in compact, conduction-cooled designs. |
| Dynamic Impedance ZZT | 1600 Ω at IZT = 250 mA - determines output voltage stability under load transients. |
| Noise Density | 1 µV/√Hz - critical for low-noise analog references in instrumentation and telemetry receivers. |
| Temp Coefficient αVZ | –0.050 %/°C - ensures predictable voltage drift over extended temperature ranges in avionics. |
| Junction Temp Range | –65 °C to +175 °C - validated for operation in space-grade and engine-mounted electronics. |
| Thermal Resistance RθJL | 250 °C/W (3/8″ lead length) - informs heatsinking requirements for sustained power dissipation. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction. Cathode indicated by color band; banded end must be biased positive for Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during Zener conduction | Connected to system ground or lower-potential node; carries full Zener current in regulation mode. |
| Cathode | Regulated output terminal | Banded end; supplies stable 4.3 V reference when reverse-biased above breakdown threshold. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated for Class S (space-level) reliability with screening including burn-in, temperature cycling, and hermeticity testing. |
| Metallurgical bonding | Eliminates interfacial delamination risk under thermal shock and vibration - essential for launch vehicle electronics. |
| Radiation hardness | Inherently resistant to total ionizing dose (TID) per Microsemi MicroNote 050 - no derating required up to 100 krad(Si). |
| Low noise density | 1 µV/√Hz at 4.3 V enables use in precision analog front-ends without external filtering. |
| ESD immunity | Non-sensitive per MIL-STD-750 Method 1020 - withstands handling without protection circuitry. |
Applications
| Avionics Power Reference | Satellite Sensor Biasing |
|---|---|
Use Scenario: Providing stable 4.3 V reference for ADC drivers and op-amp bias networks in flight control computers. IC Role / Device Role / Timing Role: Precision Zener reference diode regulating supply rail for analog signal conditioning stages. Use Value: ±2% tolerance and –0.050 %/°C tempco ensure <±10 mV drift over –55 °C to +125 °C operational range. | Use Scenario: Biasing photodiode and MEMS accelerometer front-ends in LEO satellite payloads. IC Role / Device Role / Timing Role: Low-noise, radiation-hardened voltage reference enabling sub-mV measurement resolution. Use Value: 1 µV/√Hz noise density and TID tolerance eliminate need for redundant shielding or calibration cycles. |
| Missile Guidance Telemetry | Nuclear Plant Control Interface |
Use Scenario: Regulating voltage for RF modulator ICs and data converters in hardened telemetry transmitters. IC Role / Device Role / Timing Role: High-reliability Zener shunt regulator maintaining reference integrity during high-g launch and vibration. Use Value: JANS qualification and metallurgical bond ensure zero parametric shift after 1000 g mechanical shock testing. | Use Scenario: Stabilizing reference voltage for isolation amplifier inputs in reactor coolant monitoring systems. IC Role / Device Role / Timing Role: Hermetically sealed Zener providing fail-safe regulation in high-radiation, high-temperature environments. Use Value: Operation up to +175 °C junction temperature and inherent radiation hardness prevent thermal runaway or drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4623C-1 | Same electrical specs but qualified to JANTXV level (not JANS); lacks Class S screening and radiation test documentation. | Suitable for high-reliability ground-based systems where space qualification is not mandated. | Select JANTXV1N4623C-1 only if JANS-level radiation hardness and extended life testing are unnecessary. |
| 1N4623C-1/TR | Commercial-grade version; RoHS-compliant (e3 suffix), no military qualification, max junction temp +150 °C. | Applicable in industrial controls or test equipment where cost and RoHS compliance outweigh radiation or extreme temp needs. | Choose 1N4623C-1/TR for non-military production where MIL-spec screening adds unnecessary cost and lead time. |
Compared with JANTXV1N4623C-1 and 1N4623C-1/TR, the JANS1N4623C-1/TR delivers verified space-level radiation tolerance, extended temperature capability (+175 °C), and full Class S screening - making it the sole option for mission-critical aerospace voltage reference where failure is not acceptable.
Availability
JANS1N4623C-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite sensor biasing, missile telemetry, nuclear plant control interface, and other high-reliability applications requiring stable component supply across extended product lifecycles.
Supply support for JANS1N4623C-1/TR 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 analog and mixed-signal components.
The 1N46xx series was developed specifically for military and space applications requiring stable Zener regulation under extreme thermal, mechanical, and radiation stress - with JANS variants meeting Class S requirements for orbital missions.
FAQ
What is the Zener voltage and tolerance of JANS1N4623C-1/TR?
JANS1N4623C-1/TR has a nominal Zener voltage of 4.3 V with a ±2% tolerance, measured at 250 mA test current and 25 °C ambient. This tolerance is confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1, and applies across its qualified operating temperature range.
Is JANS1N4623C-1/TR radiation hardened?
Yes, JANS1N4623C-1/TR is inherently radiation hard per Microsemi MicroNote 050, with no degradation observed up to 100 krad(Si) total ionizing dose. Its metallurgical bond and hermetic DO-35 package contribute to this performance, and radiation test data is included in the JANS qualification report.
What does the "C" in JANS1N4623C-1/TR indicate?
The "C" in JANS1N4623C-1/TR denotes 2% Zener voltage tolerance, per the Part Nomenclature section on page 2 of T4-LDS-0245-2 Rev. 1. It is distinct from "D" (1%) and blank (5%), and applies specifically to the JANS-level variant of the 1N4623-1 device.
What is the maximum power dissipation and derating behavior of JANS1N4623C-1/TR?
JANS1N4623C-1/TR has a rated average power dissipation of 500 mW at 25 °C lead temperature. Per Figure 2 and Note 2 on page 4, it linearly derates to zero at 175 °C junction temperature - meaning usable power drops to ~375 mW at 50 °C lead temperature.
Does JANS1N4623C-1/TR have low-noise performance suitable for precision analog circuits?
Yes, JANS1N4623C-1/TR exhibits a noise density of 1 µV/√Hz at 4.3 V and 250 mA, as specified in the Electrical Characteristics table. This value is confirmed in Figure 1 and referenced in the FEATURES section, making it suitable for low-noise reference applications such as telemetry receiver biasing and ADC reference staging.
JANS1N4623C-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.3 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1.6 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4623C-1/TR FAQ
1.How can I place an order for JANS1N4623C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4623C-1/TR 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 JANS1N4623C-1/TR reliable?
The price and inventory of JANS1N4623C-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4623C-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4623C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4623C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4623C-1/TR?
JANS1N4623C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4623C-1/TR 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 JANS1N4623C-1/TR?
For technical support, including JANS1N4623C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4623C-1/TR requirements.
6.How does Aetrix verify that JANS1N4623C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4623C-1/TR 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 JANS1N4623C-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4623C-1/TR?
All JANS1N4623C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4623C-1/TR, 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 JANS1N4623C-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4623C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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