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Microchip Technology JANTX1N4624C-1/TR
- Part No.:
- JANTX1N4624C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4624C-1/TR.pdf
- Description:
- DIODE ZENER 4.7V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,711
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Product details
Overview
JANTX1N4624C-1/TR from Microsemi is a 4.7 V, ±2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTX1N4624C-1/TR datasheet, JANTX1N4624C-1/TR pinout, JANTX1N4624C-1/TR application, or JANTX1N4624C-1/TR equivalent, key selection criteria include Zener voltage tolerance (±2%), dynamic impedance (1550 Ω @ 250 mA), noise density (1 µV/√Hz), temperature coefficient (–0.050,+0.020 %/°C), and JANTX-level qualification for extended temperature and radiation-hardened operation.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 4.7 V at 250 mA test current, featuring low noise density (1 µV/√Hz) and a tightly controlled temperature coefficient range of –0.050 to +0.020 %/°C - critical for stable reference generation in analog signal chains and sensor biasing circuits.
Its metallurgical bond construction ensures robust thermal performance (RθJL = 250 °C/W) and hermetic glass sealing per DO-35 (DO-204AH), enabling reliable operation across –65 to +175 °C junction temperature range without degradation under thermal cycling or radiation exposure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 4.7 V ±2% at IZT = 250 mA - enables precise low-voltage reference in regulated power rails and feedback loops. |
| Power Dissipation | 500 mW at TL = 25 °C, linearly derated to zero at 175 °C - supports continuous operation in compact, convection-cooled military enclosures. |
| Dynamic Impedance ZZT | 1550 Ω max @ 250 mA - defines regulation stiffness under load transients; lower than 1N4623-1 (1600 Ω) for improved line regulation. |
| Noise Density | 1 µV/√Hz @ 250 mA - ultra-low broadband noise suitable for precision analog references and low-noise amplifier biasing. |
| Temp Coefficient αVZ | –0.050 to +0.020 %/°C - bidirectional TC allows compensation design in dual-diode configurations for near-zero drift. |
| Reverse Leakage IR | 3.0 µA max @ VR = 3.5 V - ensures minimal quiescent current draw in battery-backed or low-power standby circuits. |
| Junction Temp Range | –65 to +175 °C - validated for operation in space-grade and high-temp avionics systems without derating penalties. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; operated with banded end positive for Zener regulation. Hermetically sealed, tin-lead plated leads solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; establishes reference potential for Zener breakdown. |
| Cathode | Zener regulation output | Banded terminal; supplies regulated 4.7 V when reverse-biased; must be held at higher potential than anode. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for aerospace and defense programs requiring lot traceability, burn-in, and radiation hardness per MicroNote 050. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock, ensuring long-term stability in cyclic environments. |
| 1 µV/√Hz noise density | Enables use in ultra-low-noise analog front-ends where reference noise directly impacts ADC SNR or op-amp offset stability. |
| ±2% Zener tolerance (C suffix) | Reduces need for post-calibration trimming in production test; tighter than standard ±5% (blank suffix) variants. |
| Hermetic glass DO-35 package | Prevents moisture ingress and corrosion in high-humidity or salt-spray environments typical of naval platforms. |
Applications
| Aerospace Power Reference | Defense System Biasing |
|---|---|
Use Scenario: Providing stable 4.7 V reference for ADCs and DACs in satellite telemetry modules operating across –55 to +125 °C ambient. IC Role / Device Role / Timing Role: Shunt voltage reference regulating supply rail for mixed-signal converters. Use Value: Low 1 µV/√Hz noise preserves effective number of bits (ENOB); JANTX qualification ensures data integrity over 15-year mission life. | Use Scenario: Biasing RF amplifiers and local oscillators in radar front-end receivers exposed to EMI and thermal cycling. IC Role / Device Role / Timing Role: Precision DC bias source maintaining gain stability under RF-induced heating. Use Value: Metallurgical bond prevents parameter shift during vibration; ±2% tolerance avoids gain calibration drift across production lots. |
| Radiation-Hardened Sensor Interface | High-Temp Industrial Control |
Use Scenario: Supplying regulated excitation voltage to strain gauges and RTDs in nuclear reactor monitoring systems. IC Role / Device Role / Timing Role: Radiation-tolerant Zener reference for bridge sensor excitation and signal conditioning. Use Value: Inherent radiation hardness (MicroNote 050) eliminates need for shielding; 175 °C max junction temp supports proximity to heat sources. | Use Scenario: Voltage clamping and overvoltage protection in downhole oil/gas logging tools operating at 150 °C ambient. IC Role / Device Role / Timing Role: Transient suppression and rail stabilization in high-temp microcontroller power domains. Use Value: Stable Zener voltage across full temperature range avoids brownout resets; DO-35 mechanical robustness withstands shock/vibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTX1N4624-1/TR | ±5% Zener tolerance vs. ±2% for JANTX1N4624C-1/TR; otherwise identical electrical and mechanical specs. | Suitable where calibration or trimming compensates for wider tolerance; lower cost for non-critical references. | Select when absolute voltage accuracy is secondary to cost and legacy design compatibility. |
| JANTXV1N4624C-1/TR | Higher qualification level (JANTXV vs. JANTX); includes additional screening (e.g., 100% thermal shock, radiation testing). | Required for flight-critical subsystems where failure modes demand stricter process controls and lot traceability. | Select when program requirements mandate JANTXV-level reliability beyond JANTX baseline. |
Compared with JANTX1N4624-1/TR, the JANTX1N4624C-1/TR delivers tighter voltage control essential for uncalibrated analog interfaces, while JANTXV1N4624C-1/TR adds screening rigor for mission-critical deployment - all share identical DO-35 packaging and 4.7 V regulation function.
Availability
JANTX1N4624C-1/TR is available at Aetrix Electronics and suitable for aerospace power references, defense system biasing, and radiation-hardened sensor interfaces requiring stable component supply across extended temperature and lifecycle demands.
Supply support for JANTX1N4624C-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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The 1N46xx series was developed specifically for military-grade voltage regulation, emphasizing hermeticity, radiation tolerance, and wide-temperature stability in harsh-environment electronics.
FAQ
What is the Zener voltage and tolerance of JANTX1N4624C-1/TR?
JANTX1N4624C-1/TR has a nominal Zener voltage of 4.7 V with a tight ±2% tolerance at 250 mA test current. This tolerance is confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1, where "C" in the part number explicitly denotes 2% Zener voltage tolerance per the nomenclature guide on page 2. The specification applies under thermal equilibrium at 25 °C ambient.
Is JANTX1N4624C-1/TR RoHS compliant?
No, JANTX1N4624C-1/TR is not RoHS compliant. Per the datasheet, RoHS-compliant versions (suffix "e3") are available only for commercial-grade parts, not for JAN/JANTX/JANTXV/JANS qualified devices like JANTX1N4624C-1/TR. The part uses tin-lead plating per MIL-STD-750, consistent with military reliability requirements.
What is the maximum Zener current IZM for JANTX1N4624C-1/TR?
The maximum Zener current IZM for JANTX1N4624C-1/TR is 75.0 mA, as specified in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This value corresponds to the rated 500 mW power dissipation at 4.7 V (P = V × I → 0.5 W / 4.7 V ≈ 106 mA), but the datasheet limits IZM to 75.0 mA to ensure safe operation within thermal and reliability margins.
Does JANTX1N4624C-1/TR have radiation hardness certification?
Yes, JANTX1N4624C-1/TR is inherently radiation hard as described in Microsemi MicroNote 050, referenced in the Applications/Benefits section on page 1. Its metallurgically bonded glass construction and JANTX qualification per MIL-PRF-19500/435 provide proven resistance to total ionizing dose (TID) and single-event effects (SEE), making it suitable for space and nuclear environments.
What is the thermal resistance junction-to-lead (RθJL) for JANTX1N4624C-1/TR?
The thermal resistance junction-to-lead (RθJL) for JANTX1N4624C-1/TR is 250 °C/W, measured with 3/8 inch (10 mm) lead length from body, as stated in the Maximum Ratings table on page 1 of T4-LDS-0245-2 Rev. 1. This value enables accurate thermal modeling for PCB layout and heatsinking in high-reliability power regulation circuits.
JANTX1N4624C-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):
- 4.7 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1550 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 3 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANTX1N4624C-1/TR FAQ
1.How can I place an order for JANTX1N4624C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4624C-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 JANTX1N4624C-1/TR reliable?
The price and inventory of JANTX1N4624C-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 JANTX1N4624C-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4624C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4624C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4624C-1/TR?
JANTX1N4624C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4624C-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 JANTX1N4624C-1/TR?
For technical support, including JANTX1N4624C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4624C-1/TR requirements.
6.How does Aetrix verify that JANTX1N4624C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4624C-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 JANTX1N4624C-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4624C-1/TR?
All JANTX1N4624C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4624C-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 JANTX1N4624C-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N4624C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4624C-1/TR Tags
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MMBZ5240B-7-F
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