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Microchip Technology JANTX1N4129C-1
- Part No.:
- JANTX1N4129C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4129C-1.pdf
- Description:
- DIODE ZENER 62V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,818
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Product details
Overview
JANTX1N4129C-1 from Microsemi is a 500 mW, 62 V Zener diode in DO-35 glass package with 2% voltage tolerance, metallurgically bonded construction, and MIL-PRF-19500/435 JANTX qualification for high-reliability voltage regulation in aerospace power supplies.
For engineers reviewing the JANTX1N4129C-1 datasheet, JANTX1N4129C-1 pinout, JANTX1N4129C-1 application, or JANTX1N4129C-1 equivalent, key selection criteria include Zener voltage accuracy (±2%), low noise density (≤1 μV/√Hz), thermal resistance (250 °C/W junction-to-lead), and hermetic DO-35 packaging for radiation-hardened environments.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 62 V at 250 mA test current, exhibiting a temperature coefficient of +0.100 %/°C and dynamic impedance of 500 Ω at IZT. Its metallurgical bond ensures stable breakdown characteristics under thermal cycling.
Designed for operation in the reverse-biased breakdown region, JANTX1N4129C-1 maintains regulation across wide current ranges (IZK to IZM = 47.1 mA) and supports stable reference generation in analog circuits where low capacitance (<2 pF typical) and ESD insensitivity per MIL-STD-750 method 1020 are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 62 V ±2% at 250 mA - provides precise reference voltage with tight tolerance for critical analog feedback loops |
| Power Dissipation | 500 mW at 25 °C - enables compact axial-leaded regulation without heatsinking in low-power systems |
| Dynamic Impedance ZZT | 500 Ω at 250 mA - ensures minimal output voltage variation under load transients |
| Noise Density ND | ≤1 μV/√Hz - supports low-noise reference applications such as precision ADCs and instrumentation amplifiers |
| Temp Coefficient αVZ | +0.100 %/°C - predictable positive drift simplifies temperature compensation in wide-temperature-range designs |
| Reverse Leakage IR | ≤10 nA at 47.1 V - guarantees minimal quiescent current draw in battery-backed or ultra-low-power circuits |
| Junction Temp Range | -65 to +175 °C - qualified for extended operation in harsh aerospace and defense environments |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; operated with banded end positive relative to anode for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential point in shunt regulator configuration |
| Cathode | Zener regulation output | Provides stable 62 V reference when reverse-biased; marked by color band on glass body |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Guarantees screening, testing, and traceability for aerospace-grade reliability and lot control |
| Metallurgically bonded construction | Eliminates interfacial delamination risk under thermal shock and long-term bias stress |
| Hermetically sealed glass package | Prevents moisture ingress and parameter shift over decades in mission-critical systems |
| Low capacitance (~2 pF) | Minimizes high-frequency coupling and signal distortion in RF-adjacent analog circuits |
| Radiation hardness | Inherently resistant to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for space electronics |
Applications
| Avionics Power Reference | Satellite Voltage Monitor |
|---|---|
Use Scenario: Providing stable 62 V reference for DC-DC converter feedback in aircraft auxiliary power units. IC Role / Device Role / Timing Role: Shunt voltage regulator maintaining output accuracy despite input ripple and temperature swings from -55 to +125 °C. Use Value: Tight ±2% tolerance and +0.100 %/°C TC enable single-point calibration across full operating range without trimming. | Use Scenario: Monitoring bus voltage integrity in LEO satellite power distribution units during eclipse phases. IC Role / Device Role / Timing Role: Radiation-hardened Zener element in overvoltage protection circuitry with <10 nA leakage at 47.1 V. Use Value: Hermetic DO-35 package and inherent TID hardness eliminate need for shielding or derating in 10 krad(Si) environments. |
| Ground-Based Radar Bias Supply | Nuclear Instrumentation Channel |
Use Scenario: Generating calibrated bias for GaN RF amplifier stages in phased-array radar transceivers. IC Role / Device Role / Timing Role: Low-noise (≤1 μV/√Hz) voltage reference stabilizing gate bias under pulsed RF loads. Use Value: Minimal noise contribution preserves SNR in 1–10 GHz receiver front-ends without additional filtering. | Use Scenario: Precision voltage clamp in neutron detector pulse-shaping circuits requiring decades-long stability. IC Role / Device Role / Timing Role: Long-life Zener regulator in safety-critical nuclear monitoring equipment with MIL-qualified traceability. Use Value: JANTX-level screening and metallurgical bonding ensure parameter stability over 20+ year service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANS1N4129C-1 | Same electrical specs but qualified to JANS level with enhanced screening and extended temperature validation (-65 to +175 °C fully tested) | Required for Class K spaceflight hardware where full radiation testing and lot acceptance testing are mandated | Select JANS1N4129C-1 only when JANS-level documentation, radiation test reports, and 100% lot testing are contractually required |
| 1N4129UR-1 | Identical Zener parameters in DO-213AA surface-mount package; no axial leads; RoHS-compliant matte-tin plating | Used in automated SMT production where board space is constrained and reflow compatibility is needed | Choose 1N4129UR-1 for new PCB designs targeting high-volume assembly and reduced footprint, not for legacy through-hole upgrades |
Compared with JANTX1N4129C-1, JANS1N4129C-1 adds full radiation test data and extended environmental validation at higher cost and longer lead time, while 1N4129UR-1 trades axial mounting flexibility for SMT manufacturability and eliminates lead-forming steps.
Availability
JANTX1N4129C-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite voltage monitor, and ground-based radar bias supply requiring stable component supply with full MIL-PRF-19500 traceability and long-lifecycle support.
Supply support for JANTX1N4129C-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.
JANTX1N4129C-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for precision voltage regulation in mission-critical systems where parameter stability, radiation tolerance, and long-term reliability outweigh cost sensitivity.
FAQ
What is the Zener voltage tolerance of JANTX1N4129C-1?
JANTX1N4129C-1 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number per Microsemi's nomenclature. This corresponds to a guaranteed 62 V regulation within 60.76 V to 63.24 V at 250 mA test current and 25 °C ambient, enabling tighter closed-loop control than standard ±5% variants.
Is JANTX1N4129C-1 suitable for space applications?
Yes, JANTX1N4129C-1 is inherently radiation-hardened per Microsemi MicroNote 050 and qualified to MIL-PRF-19500/435 JANTX level, making it suitable for low-earth orbit missions. However, for flight-critical systems requiring full radiation test reports, the JANS1N4129C-1 variant with documented TID and SEE testing should be selected instead of JANTX1N4129C-1.
What is the maximum Zener current IZM for JANTX1N4129C-1?
The maximum Zener current IZM for JANTX1N4129C-1 is 47.1 mA, derived from its 500 mW power rating and 62 V nominal Zener voltage (IZM = PM(AV)/VZ ≈ 0.5 W / 62 V). This value is confirmed in the Electrical Characteristics table on page 3 of Microsemi T4-LDS-0245-2 Rev. 1.
Does JANTX1N4129C-1 have RoHS compliance?
No, JANTX1N4129C-1 is not RoHS compliant. Per Microsemi documentation, RoHS-compliant versions (suffix "e3") are available only for commercial-grade parts (blank reliability level), not for JAN, JANTX, JANTXV, or JANS qualified devices like JANTX1N4129C-1, which retain tin-lead plating for solderability and reliability in high-reliability assemblies.
What is the thermal resistance junction-to-lead for JANTX1N4129C-1?
The thermal resistance junction-to-lead (RθJL) for JANTX1N4129C-1 is 250 °C/W when measured with 3/8 inch (10 mm) lead length from the DO-35 package body, as specified in the Maximum Ratings table on page 1 of Microsemi T4-LDS-0245-2 Rev. 1. This value assumes standard lead-forming and PCB mounting practices.
JANTX1N4129C-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)
JANTX1N4129C-1 FAQ
1.How can I place an order for JANTX1N4129C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4129C-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 JANTX1N4129C-1 reliable?
The price and inventory of JANTX1N4129C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4129C-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4129C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4129C-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4129C-1?
JANTX1N4129C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4129C-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 JANTX1N4129C-1?
For technical support, including JANTX1N4129C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4129C-1 requirements.
6.How does Aetrix verify that JANTX1N4129C-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4129C-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 JANTX1N4129C-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4129C-1?
All JANTX1N4129C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4129C-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 JANTX1N4129C-1 part is unused and in its original packaging.
Return procedure for JANTX1N4129C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4129C-1 Tags
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