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Microchip Technology JANTXV1N4129C-1
- Part No.:
- JANTXV1N4129C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4129C-1.pdf
- Description:
- DIODE ZENER 62V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,793
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Product details
Overview
JANTXV1N4129C-1 from Microsemi is a 62 V, 2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANTXV level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTXV1N4129C-1 datasheet, JANTXV1N4129C-1 pinout, JANTXV1N4129C-1 application, or JANTXV1N4129C-1 equivalent, key selection factors include its 62 V nominal Zener voltage at 250 mA test current, 500 Ω maximum dynamic impedance, 0.01 µA maximum reverse leakage at 47.1 V, and -65 °C to +175 °C operating junction temperature range.
Technical Context
This device operates as a precision shunt voltage regulator with a specified Zener voltage of 62 V at IZT = 250 mA, exhibiting a temperature coefficient of +0.100 %/°C and noise density of 1 µV/√Hz at 25 °C. Its metallurgical bond construction ensures stable regulation under thermal cycling and radiation exposure.
The JANTXV1N4129C-1 is rated for 500 mW average power dissipation at 25 °C, derating linearly to zero at 175 °C, with thermal resistance junction-to-lead of 250 °C/W at 10 mm lead length. It features hermetically sealed axial-leaded DO-35 (DO-204AH) packaging and cathode band polarity marking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 62 V at 250 mA test current - defines precise regulation point for feedback loops |
| Zener Tolerance | ±2% - enables tighter output voltage control vs. standard ±5% variants |
| Power Dissipation | 500 mW at 25 °C - supports stable operation in compact, convection-cooled designs |
| Dynamic Impedance ZZT | 500 Ω max - limits output voltage variation under load current changes |
| Reverse Leakage IR | 0.01 µA at 47.1 V - ensures minimal standby current in high-impedance bias networks |
| Temp Coefficient αVZ | +0.100 %/°C - quantifies voltage drift over temperature for system-level compensation |
| Noise Density ND | 1 µV/√Hz - critical for low-noise reference applications such as precision ADCs |
Pinout & Package
Package: DO-35 (DO-204AH), axial-leaded, hermetically sealed glass case with cathode indicated by color band. Leads are tin-lead or RoHS-compliant matte tin plated, solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during forward bias; connected to lower potential node in Zener mode | Used for forward-voltage clamping or biasing; not active during regulation |
| Cathode (banded end) | Current source during reverse breakdown; connected to higher potential node | Must be held positive relative to anode to enable Zener regulation at 62 V |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Guarantees screening, testing, and traceability for flight-critical systems |
| Metallurgical bond construction | Provides mechanical robustness and long-term stability under thermal stress |
| 1 µV/√Hz noise density | Enables use in ultra-low-noise analog references without external filtering |
| Hermetic DO-35 glass package | Prevents moisture ingress and parameter drift in humid or corrosive environments |
| Radiation hardness | Inherently resistant to total ionizing dose (TID), supporting space-grade applications |
Applications
| Avionics Power Reference | Spacecraft Voltage Monitor |
|---|---|
Use Scenario: Stable 62 V reference in triple-redundant DC-DC converter feedback networks on UAV flight controllers. IC Role / Device Role / Timing Role: Shunt voltage regulator providing precision setpoint for error amplifiers. Use Value: ±2% tolerance and +0.100 %/°C TC ensure <±0.75 V drift across -55 °C to +125 °C operational range. | Use Scenario: Overvoltage detection threshold in satellite bus protection circuitry exposed to radiation. IC Role / Device Role / Timing Role: Zener clamp triggering latch-off when primary rail exceeds 62 V. Use Value: Hermetic DO-35 package and inherent radiation hardness prevent parametric shift after 100 krad(Si) exposure. |
| Military Radar Bias Supply | Nuclear Instrumentation Calibration |
Use Scenario: High-stability bias voltage for GaN RF amplifier gate drivers in ground-based radar transceivers. IC Role / Device Role / Timing Role: Precision Zener reference in temperature-compensated bias network. Use Value: 1 µV/√Hz noise density avoids modulation sidebands in 1–10 GHz transmit chains. | Use Scenario: Calibration reference in portable radiation survey meters requiring traceable voltage standards. IC Role / Device Role / Timing Role: Primary shunt regulator defining 62 V full-scale measurement point. Use Value: JANTXV qualification provides documented lot traceability and test reports per MIL-STD-883. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4129US-1 | Same 62 V Zener voltage and JANTXV qualification, but in surface-mount DO-213AA package | Requires PCB re-layout for SMT assembly; eliminates axial lead insertion step | Select when automated assembly and board space constraints outweigh axial-lead serviceability needs |
| JAN1N4129C-1 | Identical electrical specs and DO-35 package, but qualified only to JAN level (less stringent screening than JANTXV) | Suitable for non-flight hardware where cost reduction is prioritized over extended reliability testing | Select for ground-test equipment or prototypes where full JANTXV screening is unnecessary |
Compared with JANTXV1N4129C-1, the 1N4129US-1 offers identical regulation performance in a smaller footprint but requires SMT infrastructure, while JAN1N4129C-1 reduces procurement cost by omitting JANTXV-specific tests without sacrificing core Zener functionality.
Availability
JANTXV1N4129C-1 is available at Aetrix Electronics and suitable for avionics power reference, spacecraft voltage monitor, and military radar bias supply requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTXV1N4129C-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 ICs, discrete devices, and RF solutions for aerospace, defense, and industrial markets.
The JANTXV1N4129C-1 belongs to Microsemi's legacy MIL-qualified Zener diode product line, designed specifically to meet stringent environmental, reliability, and traceability requirements of military and spaceborne power regulation systems.
FAQ
What is the Zener voltage tolerance of JANTXV1N4129C-1?
JANTXV1N4129C-1 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number per Microsemi's nomenclature. This is tighter than the standard ±5% tolerance of base-number variants like JANTXV1N4129-1, enabling more precise voltage regulation in feedback circuits where output accuracy is critical.
Is JANTXV1N4129C-1 suitable for high-radiation environments?
Yes, JANTXV1N4129C-1 is inherently radiation hard as described in Microsemi MicroNote 050 and qualified to JANTXV level per MIL-PRF-19500/435. Its metallurgically bonded construction and hermetic DO-35 package provide proven resistance to total ionizing dose (TID), making it suitable for low-earth orbit and nuclear instrumentation applications.
What is the maximum reverse leakage current for JANTXV1N4129C-1?
The maximum reverse leakage current for JANTXV1N4129C-1 is 0.01 µA at VR = 47.1 V, as specified in the Electrical Characteristics table on page 3 of the T4-LDS-0245-2 datasheet. This ultra-low leakage supports high-impedance bias networks and minimizes standby power loss in battery-operated systems.
Does JANTXV1N4129C-1 require derating above 25 °C?
Yes, JANTXV1N4129C-1 must be linearly derated starting at 25 °C ambient temperature, with rated power dropping from 500 mW to zero at 175 °C. Derating follows the curve in Figure 2 of the datasheet, ensuring safe operation under thermal stress in enclosed or high-power-density assemblies.
How is polarity marked on JANTXV1N4129C-1?
JANTXV1N4129C-1 uses a cathode band to indicate polarity: the banded end is the cathode and must be held positive relative to the anode to achieve Zener regulation at 62 V. This marking conforms to JEDEC DO-35 standards and is visible on the glass body near one lead.
JANTXV1N4129C-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):
- 62 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 500 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 47.1 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)
JANTXV1N4129C-1 FAQ
1.How can I place an order for JANTXV1N4129C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4129C-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 JANTXV1N4129C-1 reliable?
The price and inventory of JANTXV1N4129C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4129C-1 is usually 5 days.
3.What payment methods are accepted for JANTXV1N4129C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4129C-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4129C-1?
JANTXV1N4129C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4129C-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 JANTXV1N4129C-1?
For technical support, including JANTXV1N4129C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4129C-1 requirements.
6.How does Aetrix verify that JANTXV1N4129C-1 is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4129C-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 JANTXV1N4129C-1 meets industry standards.
7.What is the process for return or replacement of JANTXV1N4129C-1?
All JANTXV1N4129C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4129C-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 JANTXV1N4129C-1 part is unused and in its original packaging.
Return procedure for JANTXV1N4129C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4129C-1 Tags
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Diodes Incorporated
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