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Microchip Technology JANTX1N4123C-1/TR
- Part No.:
- JANTX1N4123C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4123C-1/TR.pdf
- Description:
- DIODE ZENER 39V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,772
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Product details
Overview
JANTX1N4123C-1/TR from Microsemi is a 39 V, 2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTX1N4123C-1/TR datasheet, JANTX1N4123C-1/TR pinout, JANTX1N4123C-1/TR application, or JANTX1N4123C-1/TR equivalent, this page delivers verified Zener voltage, temperature coefficient, dynamic impedance, noise density, and military qualification status - critical for precision reference and overvoltage protection design.
Technical Context
This device operates as a two-terminal voltage reference with cathode-banded polarity, requiring reverse bias (banded end positive) for Zener conduction. Its metallurgical bond ensures stable junction characteristics across -65 °C to +175 °C operating range and radiation hardness per MicroNote 050.
It delivers 39.0 V nominal regulation at 250 mA test current (IZT), with ±2% tolerance (denoted by "C"), 200 Ω maximum dynamic impedance (ZZT), and +0.095 %/°C temperature coefficient - enabling predictable drift compensation in analog monitoring circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 39.0 V @ IZT = 250 mA - precise reference point for regulated supply rails or feedback networks. |
| Zener Tolerance | ±2% (C grade) - tighter than standard ±5%, reducing calibration overhead in test equipment. |
| Power Rating | 500 mW @ TC = 25 °C - supports stable regulation under moderate load without forced cooling. |
| Dynamic Impedance ZZT | 200 Ω max @ IZT - low AC impedance ensures minimal output voltage variation under ripple current. |
| Temp Coefficient αVZ | +0.095 %/°C - predictable positive drift enables accurate thermal compensation in sensor interfaces. |
| Noise Density ND | 1 µV/√Hz typical - ultra-low broadband noise suitable for precision analog references. |
| Max Reverse Current IR | 0.01 µA @ VR = 29.7 V - negligible leakage preserves accuracy in high-impedance bias networks. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction; cathode indicated by single black band; leads tin-lead plated and solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to circuit common; defines 0 V reference for Zener voltage drop. |
| Cathode (banded end) | Regulated output node | Provides stable 39 V relative to anode when reverse biased above breakdown threshold. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for aerospace avionics and military comms systems requiring extended lifetime and burn-in screening. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling, ensuring long-term parameter stability in harsh environments. |
| Ultra-low noise density | 1 µV/√Hz at 39 V enables use in high-resolution ADC references and low-noise instrumentation amplifiers. |
| Hermetic glass sealing | Prevents moisture ingress and corrosion, supporting operation at 100% RH and >10-year shelf life without desiccant. |
| Radiation hardness | Inherent TID tolerance per MicroNote 050 - suitable for low-earth orbit satellite power conditioning without shielding. |
Applications
| Aerospace Power Monitoring | Defense Radar Bias Supply |
|---|---|
|
Use Scenario: Monitoring 28 V aircraft bus voltage via resistive divider into ADC input. IC Role / Device Role / Timing Role: Precision 39 V Zener reference sets ADC full-scale range with <±0.78 V error budget. Use Value: ±2% tolerance and +0.095 %/°C TC enable calibrated measurement across -55 °C to +125 °C flight envelope. |
Use Scenario: Providing stable bias to GaN RF amplifier gate drivers in airborne radar transceivers. IC Role / Device Role / Timing Role: Low-noise 39 V reference stabilizes quiescent current against supply ripple and temperature shift. Use Value: 1 µV/√Hz noise density prevents phase noise degradation in 1–10 GHz transmit chains. |
| Satellite Onboard Computer | Nuclear Instrumentation |
|
Use Scenario: Regulating 3.3 V LDO input rail from unregulated 48 V solar array bus in CubeSat platforms. IC Role / Device Role / Timing Role: High-reliability Zener clamp absorbs transient surges while maintaining reference integrity. Use Value: JANTX qualification and radiation hardness ensure uninterrupted operation during solar particle events. |
Use Scenario: Calibrating gamma-ray spectrometer front-end amplifiers in reactor monitoring systems. IC Role / Device Role / Timing Role: Stable 39 V reference establishes energy scale for pulse-height analysis. Use Value: Metallurgical bond and hermetic seal prevent parameter drift after 10+ years of continuous operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4123US-1 | Same 39 V, ±2%, DO-213AA surface-mount package; no axial leads. | Used where board space is constrained and reflow assembly required; lacks axial mounting flexibility. | Select for automated SMT production; verify thermal pad layout matches RθJL = 250 °C/W requirement. |
| JANTXV1N4123C-1 | Identical electrical specs but qualified to JANTXV level - includes 100% lot testing and enhanced screening. | Required for mission-critical flight hardware where failure probability must be <10⁻⁶ per hour. | Choose when system-level FMEA mandates extended environmental stress screening beyond JANTX. |
Compared with JANTX1N4123C-1/TR, the 1N4123US-1 offers footprint reduction at the cost of manual prototyping difficulty, while JANTXV1N4123C-1 adds screening rigor without altering regulation performance - enabling trade-offs between cost, manufacturability, and assurance level.
Availability
JANTX1N4123C-1/TR is available at Aetrix Electronics and suitable for aerospace power monitoring, defense radar bias supply, and satellite onboard computer applications requiring stable component supply with full traceability and long-lifecycle support.
Supply support for JANTX1N4123C-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 JANTX1N4123C-1/TR belongs to Microsemi's MIL-qualified Zener diode family, engineered specifically for precision voltage regulation in mission-critical systems where parameter stability and radiation tolerance are non-negotiable.
FAQ
What is the Zener voltage and tolerance of JANTX1N4123C-1/TR?
JANTX1N4123C-1/TR has a nominal Zener voltage of 39.0 V at 250 mA test current (IZT), with a ±2% tolerance indicated by the "C" suffix. This tight tolerance is confirmed in the Electrical Characteristics table on Page 3 of T4-LDS-0245-2 Rev. 1, enabling high-accuracy voltage referencing without post-manufacture trimming.
Is JANTX1N4123C-1/TR qualified to military standards?
Yes, JANTX1N4123C-1/TR is qualified per MIL-PRF-19500/435 at the JANTX reliability level, including screening tests for temperature cycling, mechanical shock, and hermeticity. This qualification is explicitly stated in the DESCRIPTION section on Page 1 of the official Microsemi datasheet.
What is the maximum power dissipation and derating behavior of JANTX1N4123C-1/TR?
JANTX1N4123C-1/TR has a rated average power dissipation of 500 mW at 25 °C case temperature. It linearly derates to zero at 175 °C, with full rating maintained up to 50 °C lead temperature - details are specified in the MAXIMUM RATINGS table on Page 1 of T4-LDS-0245-2 Rev. 1.
Does JANTX1N4123C-1/TR have low noise performance suitable for precision references?
Yes, JANTX1N4123C-1/TR exhibits a typical noise density of 1 µV/√Hz at its 39 V operating point, as documented in the ELECTRICAL CHARACTERISTICS table (Page 3) and supported by Figure 1 (Noise Density Measurement Circuit). This makes it suitable for high-resolution analog measurement systems.
What package type and marking does JANTX1N4123C-1/TR use?
JANTX1N4123C-1/TR uses the DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by a single black band. The part number is laser-marked on the body, and "TR" suffix denotes tape-and-reel packaging per EIA-296 - all confirmed in the MECHANICAL and PACKAGING section on Page 2.
JANTX1N4123C-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):
- 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/TR FAQ
1.How can I place an order for JANTX1N4123C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4123C-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 JANTX1N4123C-1/TR reliable?
The price and inventory of JANTX1N4123C-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 JANTX1N4123C-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4123C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4123C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4123C-1/TR?
JANTX1N4123C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4123C-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 JANTX1N4123C-1/TR?
For technical support, including JANTX1N4123C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4123C-1/TR requirements.
6.How does Aetrix verify that JANTX1N4123C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4123C-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 JANTX1N4123C-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4123C-1/TR?
All JANTX1N4123C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4123C-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 JANTX1N4123C-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N4123C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4123C-1/TR Tags
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