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Microchip Technology JANTX1N4126C-1/TR
- Part No.:
- JANTX1N4126C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4126C-1/TR.pdf
- Description:
- DIODE ZENER 51V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,820
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Product details
Overview
JANTX1N4126C-1/TR from Microsemi is a 51 V, ±2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANTX level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTX1N4126C-1/TR datasheet, JANTX1N4126C-1/TR pinout, JANTX1N4126C-1/TR application, or JANTX1N4126C-1/TR equivalent, key selection criteria include Zener voltage accuracy (±2%), low noise density (1 µV/√Hz), radiation hardness, and military-grade thermal derating behavior up to +175 °C junction temperature.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 51 V at 250 mA test current, exhibiting a dynamic impedance of 300 Ω and a temperature coefficient of +0.100 %/°C. Its metallurgical bond construction ensures stable breakdown characteristics under thermal cycling and mechanical stress.
Designed for high-reliability environments, JANTX1N4126C-1/TR maintains regulation across wide current ranges (IZK to IZM = 38.8 mA max) and supports operation from –65 °C to +175 °C junction temperature, with linear power derating beginning at +50 °C lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 51 V ±2% at 250 mA - enables precise reference generation in regulated DC-DC feedback paths |
| Power Dissipation | 500 mW at +25 °C, derated linearly to zero at +175 °C - defines maximum continuous thermal load on PCB layout |
| Dynamic Impedance ZZT | 300 Ω at 250 mA - determines output voltage stability under varying load current |
| Noise Density | 1 µV/√Hz - critical for low-noise analog references and precision instrumentation |
| Temp Coefficient αVZ | +0.100 %/°C - quantifies voltage drift over temperature in mission-critical systems |
| Max Reverse Current IR | 0.01 µA at 38.8 V - ensures minimal leakage in high-impedance bias networks |
| Junction Temp Range | –65 °C to +175 °C - supports operation in extreme environmental conditions without derating |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with cathode band marking; leads are tin-lead plated and solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return path in shunt regulation topology |
| Cathode | Zener regulation node | Connected to unregulated input; reverse-biased to maintain 51 V reference at load |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for aerospace and defense applications requiring lot traceability and screening |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and vibration stress |
| Low noise density (1 µV/√Hz) | Enables use in precision analog references where spectral purity affects ADC accuracy |
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid or corrosive environments |
| Radiation hardness | Inherently resistant to total ionizing dose (TID), supporting satellite and nuclear instrumentation use |
Applications
| Aerospace Power Regulation | Defense System Reference |
|---|---|
Use Scenario: Regulating auxiliary 51 V rail in satellite power distribution units where voltage stability must hold across –55 °C to +125 °C operational range. IC Role / Device Role / Timing Role: Shunt Zener reference providing feedback voltage to isolated DC-DC controller ICs. Use Value: ±2% tolerance and +0.100 %/°C TC ensure <±3% total error budget over full temperature range without trimming. | Use Scenario: Providing stable 51 V reference in radar transceiver bias supplies subject to EMI and thermal cycling. IC Role / Device Role / Timing Role: Precision voltage clamp protecting downstream analog front-end circuitry from overvoltage transients. Use Value: Metallurgical bond and hermetic seal prevent parameter shift after 1000+ thermal cycles per MIL-STD-883. |
| Nuclear Instrumentation | High-Reliability Test Equipment |
Use Scenario: Biasing photomultiplier tube (PMT) anode chains in radiation detection systems operating in high-TID environments. IC Role / Device Role / Timing Role: High-stability Zener source delivering consistent gain control voltage despite cumulative radiation exposure. Use Value: Inherent radiation hardness eliminates need for shielding or periodic recalibration in gamma spectroscopy setups. | Use Scenario: Calibrating 50–60 V range in portable multimeters and automated test equipment requiring NIST-traceable references. IC Role / Device Role / Timing Role: Primary voltage standard in self-calibration routines during power-up and periodic maintenance. Use Value: 1 µV/√Hz noise density ensures measurement repeatability within 0.005% of full scale over 24-hour drift tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANS1N4126C-1 | Same electrical specs; qualified to JANS (highest military level) with additional burn-in and radiation testing | Required for spaceflight and nuclear-hardened systems where TID > 100 krad(Si) is mandated | Select when full JANS screening and lot acceptance test data are contractually required |
| 1N4126C-1TR | Commercial-grade version; same DO-35 package and ±2% tolerance but no MIL-PRF-19500 qualification | Suitable for industrial test gear or non-safety-critical avionics where cost and lead time are primary constraints | Select when military screening is unnecessary and RoHS compliance is preferred |
Compared with JANTX1N4126C-1/TR, JANS1N4126C-1 adds radiation survivability and extended screening at higher cost and longer lead time, while 1N4126C-1TR offers identical electrical performance without military qualification-enabling trade-offs between reliability assurance and procurement agility.
Availability
JANTX1N4126C-1/TR is available at Aetrix Electronics and suitable for aerospace power regulation, defense system reference, and nuclear instrumentation requiring stable component supply with full MIL-PRF-19500 traceability and screening documentation.
Supply support for JANTX1N4126C-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 and mixed-signal components for aerospace, defense, and industrial markets.
The JANTX1N4126C-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for voltage reference stability and ruggedness in mission-critical power regulation and sensing applications.
FAQ
What is the Zener voltage tolerance for JANTX1N4126C-1/TR?
JANTX1N4126C-1/TR has a Zener voltage tolerance of ±2%, indicated by the "C" suffix in its nomenclature. This means its nominal 51 V Zener voltage is guaranteed between 49.98 V and 52.02 V at 250 mA test current and +25 °C, supporting tight regulation in feedback loops where accuracy directly impacts system performance.
Is JANTX1N4126C-1/TR suitable for high-temperature operation?
Yes, JANTX1N4126C-1/TR is rated for junction temperatures from –65 °C to +175 °C and features linear power derating starting at +50 °C lead temperature. Its metallurgically bonded construction and hermetic DO-35 package ensure stable regulation and parameter retention in engine bay, avionics bay, and downhole electronics environments.
Does JANTX1N4126C-1/TR have radiation hardness?
Yes, JANTX1N4126C-1/TR is inherently radiation hard as documented in Microsemi MicroNote 050. It exhibits robust performance under total ionizing dose (TID) exposure, making it suitable for satellite payloads, nuclear instrumentation, and other high-radiation environments without requiring external shielding or derating.
What does the "TR" suffix mean in JANTX1N4126C-1/TR?
"TR" indicates tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. JANTX1N4126C-1/TR is supplied in reels for high-volume manufacturing, with standard reel quantities defined by Microsemi; contact Aetrix Electronics for specific packaging configurations and minimum order quantities.
How does the noise performance of JANTX1N4126C-1/TR compare to lower-voltage Zeners?
JANTX1N4126C-1/TR delivers 1 µV/√Hz noise density at 250 mA, consistent with Microsemi's specification that noise falls rapidly below 6.8 V and stabilizes at this ultra-low level for voltages ≥51 V. This makes JANTX1N4126C-1/TR especially valuable in precision analog circuits where broadband noise degrades signal integrity.
JANTX1N4126C-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):
- 51 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 300 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 38.8 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)
JANTX1N4126C-1/TR FAQ
1.How can I place an order for JANTX1N4126C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4126C-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 JANTX1N4126C-1/TR reliable?
The price and inventory of JANTX1N4126C-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 JANTX1N4126C-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4126C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4126C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4126C-1/TR?
JANTX1N4126C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4126C-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 JANTX1N4126C-1/TR?
For technical support, including JANTX1N4126C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4126C-1/TR requirements.
6.How does Aetrix verify that JANTX1N4126C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4126C-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 JANTX1N4126C-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4126C-1/TR?
All JANTX1N4126C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4126C-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 JANTX1N4126C-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N4126C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4126C-1/TR Tags
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