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Microchip Technology JANTX1N4129C-1/TR
- Part No.:
- JANTX1N4129C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4129C-1/TR.pdf
- Description:
- DIODE ZENER 62V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,208
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Product details
Overview
JANTX1N4129C-1/TR from Microsemi is a 500 mW, 62 V Zener diode with ±2% voltage tolerance, metallurgically bonded glass DO-35 package, qualified to JANTX level per MIL-PRF-19500/435, used for precision voltage regulation in military-grade power supply reference circuits.
For engineers reviewing the JANTX1N4129C-1/TR datasheet, JANTX1N4129C-1/TR pinout, JANTX1N4129C-1/TR application, or JANTX1N4129C-1/TR equivalent, this page delivers verified Zener voltage (62 V), dynamic impedance (500 Ω), noise density (1 µV/√Hz), temperature coefficient (+0.100 %/°C), and JANTX reliability qualification - all critical for high-reliability analog reference design.
Technical Context
This device operates as a reverse-biased voltage reference with a nominal Zener voltage of 62 V at 250 mA test current, exhibiting low noise density (1 µV/√Hz) and tight ±2% tolerance. Its metallurgical bond construction ensures stable breakdown characteristics across -65 °C to +175 °C junction temperature range.
Designed for high-reliability applications, it meets MIL-PRF-19500/435 JANTX requirements, including hermetic glass sealing, non-ESD-sensitive behavior per MIL-STD-750 Method 1020, and radiation hardness per MicroNote 050 - enabling use in aerospace, defense, and downhole electronics where long-term parametric stability is mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 62 V at IZT = 250 mA - defines precise regulation point for reference design |
| Zener Tolerance | ±2% - enables tighter system-level voltage accuracy vs. standard ±5% variants |
| Power Dissipation | 500 mW - supports stable regulation under moderate load without forced cooling |
| Dynamic Impedance ZZT | 500 Ω - limits output voltage variation under changing load current |
| Noise Density | 1 µV/√Hz - minimizes added noise in precision analog references and sensor excitation |
| Temp Coefficient αVZ | +0.100 %/°C - predictable positive drift aids thermal compensation in wide-temperature designs |
| Max Reverse Current IR | 10 nA @ VR = 47.1 V - ensures negligible leakage in high-impedance bias networks |
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 circuit common; establishes return path for Zener current |
| Cathode | Regulated output node | Banded end supplies stable 62 V reference when reverse biased |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Guarantees screening, testing, and traceability for defense/aerospace deployment |
| Metallurgical bond construction | Ensures repeatable Zener voltage and low long-term drift under thermal cycling |
| 1 µV/√Hz noise density | Preserves signal integrity in low-noise instrumentation amplifier references |
| Hermetic glass DO-35 package | Provides moisture resistance and reliability beyond plastic-packaged commercial Zeners |
| Non-ESD-sensitive per MIL-STD-750 | Eliminates need for ESD handling controls during board assembly and burn-in |
Applications
| Avionics Power Reference | Downhole Sensor Excitation |
|---|---|
Use Scenario: Regulating reference voltage for ADCs and DACs in flight control computers operating from unregulated 28 V DC bus. IC Role / Device Role / Timing Role: Precision voltage reference source for analog front-end calibration. Use Value: ±2% tolerance and +0.100 %/°C tempco enable <±0.5% total error over -55 °C to +125 °C operational range. | Use Scenario: Providing stable excitation voltage to piezoresistive pressure transducers in oil/gas well logging tools. IC Role / Device Role / Timing Role: High-stability Zener reference in harsh-temperature analog signal conditioning. Use Value: Hermetic DO-35 package and -65 °C to +175 °C rating ensure operation at 175 °C downhole ambient. |
| Radiation-Hardened Telemetry | Military Radar Bias Supply |
Use Scenario: Generating reference voltages for telemetry subsystems on satellites exposed to total ionizing dose >100 krad(Si). IC Role / Device Role / Timing Role: Radiation-tolerant voltage reference in command and data handling units. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or derating in LEO missions. | Use Scenario: Setting bias points for GaN RF power amplifiers in ground-based radar transmitters. IC Role / Device Role / Timing Role: Stable Zener clamp in high-voltage gate driver bias networks. Use Value: 500 Ω dynamic impedance maintains <100 mV regulation error despite fast-switching supply ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4129C-1 | JANTXV qualification (enhanced screening vs. JANTX); identical electrical specs | Required for programs specifying JANTXV-level reliability (e.g., missile guidance) | Select when higher screen severity and extended lot traceability are mandated |
| 1N4129UR-1 | DO-213AA surface-mount package; same 62 V/±2%/500 mW specs | Suitable for automated SMT assembly; lacks axial-lead mechanical robustness | Choose for space-constrained PCBs where reflow compatibility is prioritized over manual repair access |
Compared with JANTX1N4129C-1/TR, the JANTXV variant adds screening rigor without electrical change, while the 1N4129UR-1 offers identical regulation performance in a surface-mount form factor - enabling trade-offs between reliability assurance, manufacturability, and board-level serviceability.
Availability
JANTX1N4129C-1/TR is available at Aetrix Electronics and suitable for avionics power reference, downhole sensor excitation, and radiation-hardened telemetry requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTX1N4129C-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) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N4099–1N4135 series was designed specifically for military-grade voltage reference applications demanding MIL-qualified reliability, hermetic packaging, and stable Zener characteristics across extreme temperatures and radiation exposure.
FAQ
What is the Zener voltage and tolerance of JANTX1N4129C-1/TR?
JANTX1N4129C-1/TR has a nominal Zener voltage of 62 V at 250 mA test current with a tight ±2% tolerance. This value is measured under thermal equilibrium at 25 °C and is guaranteed across the full JANTX qualification screening, making JANTX1N4129C-1/TR suitable for precision reference designs where tighter regulation than standard ±5% Zeners is required.
Is JANTX1N4129C-1/TR RoHS compliant?
No, JANTX1N4129C-1/TR is not RoHS compliant. Per the manufacturer's documentation, RoHS-compliant versions (suffix e3) are available only for commercial-grade parts, not for JANTX-qualified devices like JANTX1N4129C-1/TR. The JANTX1N4129C-1/TR uses traditional tin-lead plating to meet MIL-STD-750 solderability requirements.
What is the maximum power dissipation and derating behavior of JANTX1N4129C-1/TR?
JANTX1N4129C-1/TR has a rated average power dissipation of 500 mW at 25 °C lead temperature, linearly derated to zero at 175 °C. Derating begins at 50 °C for lead temperature or 25 °C for ambient conditions on a typical FR4 board - meaning JANTX1N4129C-1/TR delivers full 500 mW only below 25 °C ambient, with ~375 mW available at 75 °C ambient.
How is polarity marked and configured for proper operation of JANTX1N4129C-1/TR?
JANTX1N4129C-1/TR uses a cathode band to indicate polarity: the banded end is the cathode and must be held positive relative to the anode to operate in Zener breakdown mode. When correctly biased, JANTX1N4129C-1/TR regulates at 62 V across its terminals, with the anode serving as the reference ground node and the cathode delivering the regulated output.
What does the "TR" suffix signify in JANTX1N4129C-1/TR?
"TR" denotes tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. JANTX1N4129C-1/TR is supplied in reels for high-volume manufacturing, with the underlying device identical to JANTX1N4129C-1 in electrical and reliability specifications - the "TR" suffix reflects only the packaging format, not a functional or qualification change to the JANTX1N4129C-1/TR die or construction.
JANTX1N4129C-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):
- 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/TR FAQ
1.How can I place an order for JANTX1N4129C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4129C-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 JANTX1N4129C-1/TR reliable?
The price and inventory of JANTX1N4129C-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 JANTX1N4129C-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4129C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4129C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4129C-1/TR?
JANTX1N4129C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4129C-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 JANTX1N4129C-1/TR?
For technical support, including JANTX1N4129C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4129C-1/TR requirements.
6.How does Aetrix verify that JANTX1N4129C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4129C-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 JANTX1N4129C-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4129C-1/TR?
All JANTX1N4129C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4129C-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 JANTX1N4129C-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N4129C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4129C-1/TR Tags
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