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Microchip Technology JANTX1N4123C-1
- Part No.:
- JANTX1N4123C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4123C-1.pdf
- Description:
- DIODE ZENER 39V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,375
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Product details
Overview
JANTX1N4123C-1 from Microsemi is a 500 mW, 39.0 V ±2% tolerance metallurgically bonded glass Zener diode in DO-35 (DO-204AH) package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability applications. It delivers stable voltage regulation at 250 mA test current with 200 Ω dynamic impedance, low noise density (1 µV/√Hz), and operates across –65 °C to +175 °C junction temperature range.
For engineers reviewing the JANTX1N4123C-1 datasheet, JANTX1N4123C-1 pinout, JANTX1N4123C-1 application, or JANTX1N4123C-1 equivalent, key selection criteria include Zener voltage tolerance (±2%), thermal resistance (250 °C/W junction-to-lead), maximum reverse leakage (0.01 µA @ 31.2 V), radiation hardness per MicroNote 050, and RoHS compliance status (not applicable for JANTX grade).
Technical Context
This device functions as a precision shunt voltage regulator in analog power supply feedback paths and reference circuits. Its internal metallurgical bond ensures mechanical stability under thermal cycling and shock, while its hermetically sealed DO-35 glass package maintains long-term parameter consistency in harsh environments.
The JANTX1N4123C-1 exhibits a positive temperature coefficient of +0.095 %/°C, enabling predictable drift compensation in multi-diode references. Its low capacitance (typical <2 pF at 0 V) and minimal noise density support use in low-phase-noise oscillator biasing and precision instrumentation front ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 39.0 V ±2% at 250 mA - defines regulated output voltage with tight tolerance for reference accuracy |
| Power Dissipation | 500 mW at 25 °C - supports stable operation in compact layouts with linear derating to zero at 175 °C |
| Dynamic Impedance ZZT | 200 Ω at 250 mA - limits output voltage variation under load current changes |
| Reverse Leakage IR | ≤0.01 µA at 31.2 V - ensures minimal error current in high-impedance reference nodes |
| Noise Density | 1 µV/√Hz - enables use in low-noise analog signal chains without added filtering |
| Temp Coefficient αVZ | +0.095 %/°C - allows predictable thermal drift modeling in temperature-compensated designs |
| Junction Temp Range | –65 °C to +175 °C - supports deployment in aerospace, downhole, and military platforms |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; banded end is positive during 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; forms low-impedance path for Zener current |
| Cathode | Regulated output node | Banded end supplies stable 39.0 V reference; must be biased positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Guarantees screening, testing, and traceability for defense and space programs |
| Metallurgical bond construction | Prevents delamination under thermal stress and mechanical shock up to 100 g |
| Low noise density (1 µV/√Hz) | Reduces phase jitter in RF synthesizer bias networks and sensor excitation circuits |
| Hermetic glass DO-35 package | Ensures parameter stability over 20+ years in humid or corrosive atmospheres |
| Radiation hardness (per MicroNote 050) | Withstands total ionizing dose >100 krad(Si) without parametric shift |
Applications
| Aerospace Power Reference | Downhole Instrumentation |
|---|---|
Use Scenario: Providing stable 39.0 V reference for ADC biasing and DAC output scaling in satellite telemetry modules. IC Role / Device Role / Timing Role: Shunt voltage reference regulating feedback node of precision LDOs powering mixed-signal ASICs. Use Value: ±2% tolerance and +0.095 %/°C TC enable <±0.5% total error over –55 °C to +125 °C operating range. | Use Scenario: Biasing piezoresistive pressure transducers in oil/gas well logging tools exposed to 175 °C ambient. IC Role / Device Role / Timing Role: Primary voltage reference for analog front-end amplifiers and sensor excitation drivers. Use Value: Hermetic DO-35 package and –65 °C to +175 °C rating ensure reliability where polymer-packaged alternatives fail. |
| Military Radar Bias Supply | Nuclear Monitoring Sensor Node |
Use Scenario: Generating clean 39.0 V rail for GaAs MMIC driver stages in airborne radar pulse modulators. IC Role / Device Role / Timing Role: Low-noise Zener source feeding active filter networks that suppress switching noise from DC-DC converters. Use Value: 1 µV/√Hz noise density prevents degradation of radar receiver sensitivity below –110 dBm. | Use Scenario: Establishing calibrated reference voltage for gamma spectrometer pulse-height analyzers in reactor containment zones. IC Role / Device Role / Timing Role: Radiation-hardened shunt regulator maintaining reference integrity during neutron flux exposure. Use Value: Confirmed TID hardness >100 krad(Si) eliminates need for shielding or redundant references. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4123US-1 | Same electrical specs but in surface-mount DO-213AA package; no axial leads | Used where board space is constrained and reflow assembly is required | Select when automated SMT placement is mandatory and thermal mass constraints allow lower peak power handling |
| JAN1N4123C-1 | Identical electrical and mechanical specs but qualified only to JAN level (less rigorous screening than JANTX) | Suitable for cost-sensitive defense subsystems where full JANTX screening is not mandated | Choose when procurement specifications permit JAN-level qualification and budget constraints apply |
Compared with JANTX1N4123C-1, the 1N4123US-1 enables PCB area reduction and reflow compatibility but sacrifices lead-forming flexibility and thermal dissipation via lead conduction; the JAN1N4123C-1 offers identical performance at lower cost but lacks JANTX-level burn-in and life-test validation.
Availability
JANTX1N4123C-1 is available at Aetrix Electronics and suitable for aerospace power reference, downhole instrumentation, and military radar bias supply requiring stable component supply, full traceability, and extended temperature operation.
Supply support for JANTX1N4123C-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 analog and mixed-signal components for aerospace, defense, and industrial markets.
The JANTX1N4123C-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for mission-critical voltage reference and regulation in extreme-environment electronics.
FAQ
What is the Zener voltage tolerance for JANTX1N4123C-1?
The JANTX1N4123C-1 has a nominal Zener voltage of 39.0 V with a tolerance of ±2%, as indicated by the "C" suffix in the part number per Microsemi's nomenclature. This tolerance is verified at 250 mA test current and 25 °C ambient, and applies across the full qualified temperature range when used within derated power limits.
Is JANTX1N4123C-1 RoHS compliant?
No, JANTX1N4123C-1 is not RoHS compliant. Per Microsemi documentation, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade parts; JANTX-level devices retain tin-lead plating to meet MIL-STD-750 solderability requirements and are exempt from RoHS restrictions under defense procurement guidelines.
What is the maximum reverse leakage current for JANTX1N4123C-1?
The maximum reverse leakage current for JANTX1N4123C-1 is 0.01 µA at 31.2 V (80% of VZ), as specified in the Electrical Characteristics table on page 3 of the T4-LDS-0245-2 datasheet. This ultra-low leakage supports high-impedance reference designs where error current must remain below femtoamp-level thresholds.
Can JANTX1N4123C-1 be used in surface-mount assemblies?
No, JANTX1N4123C-1 uses an axial-leaded DO-35 (DO-204AH) package and is not suitable for standard surface-mount reflow. For SMT-compatible equivalents, consider the 1N4123US-1 in DO-213AA package - it shares identical electrical specs but requires different board layout and assembly processes.
What is the thermal resistance junction-to-lead for JANTX1N4123C-1?
The thermal resistance junction-to-lead (RθJL) for JANTX1N4123C-1 is 250 °C/W when measured with 3/8 inch (10 mm) lead length from the body, per the Maximum Ratings table. This value enables accurate thermal modeling when heatsinking is implemented via lead conduction in high-reliability chassis-mounted configurations.
JANTX1N4123C-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):
- 39 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 29.7 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)
JANTX1N4123C-1 FAQ
1.How can I place an order for JANTX1N4123C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4123C-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 JANTX1N4123C-1 reliable?
The price and inventory of JANTX1N4123C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4123C-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4123C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4123C-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4123C-1?
JANTX1N4123C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4123C-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 JANTX1N4123C-1?
For technical support, including JANTX1N4123C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4123C-1 requirements.
6.How does Aetrix verify that JANTX1N4123C-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4123C-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 JANTX1N4123C-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4123C-1?
All JANTX1N4123C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4123C-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 JANTX1N4123C-1 part is unused and in its original packaging.
Return procedure for JANTX1N4123C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4123C-1 Tags
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