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Microchip Technology JANTXV1N4126C-1/TR
- Part No.:
- JANTXV1N4126C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4126C-1/TR.pdf
- Description:
- DIODE ZENER 51V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,410
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Product details
Overview
JANTXV1N4126C-1/TR from Microsemi is a 51 V, ±2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to MIL-PRF-19500/435 JANTXV level for high-reliability voltage regulation in aerospace power conditioning and precision reference circuits.
For engineers reviewing the JANTXV1N4126C-1/TR datasheet, JANTXV1N4126C-1/TR pinout, JANTXV1N4126C-1/TR application, or JANTXV1N4126C-1/TR equivalent, this page delivers verified Zener voltage, temperature coefficient, dynamic impedance, noise density, and military qualification status - all critical for radiation-hardened analog design, voltage reference stability, and legacy avionics BOM continuity.
Technical Context
This device operates as a two-terminal shunt voltage regulator with cathode-banded polarity, requiring reverse-bias operation where the banded end is positive relative to the anode. Its metallurgical bond ensures low thermal resistance (RθJL = 250 °C/W) and stable breakdown under thermal cycling.
It exhibits a +0.100 %/°C temperature coefficient above 47 V, 300 Ω maximum Zener impedance at 250 mA test current, and 1 µV/√Hz typical noise density - enabling use in low-noise bandgap references and precision bias networks where drift and spectral purity are design-critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 51.0 V ±2% at IZT = 250 mA - defines precise regulation point for mid-range reference applications |
| Power Dissipation | 500 mW at TL = 25 °C, derated linearly to zero at 175 °C - sets thermal layout constraints on lead length and PCB copper area |
| Zener Impedance ZZT | 300 Ω max at IZT = 250 mA - determines output voltage variation under load transients |
| Noise Density ND | 1 µV/√Hz typical - enables low-noise analog references without external filtering |
| Temp. Coefficient αVZ | +0.100 %/°C - quantifies voltage drift per degree Celsius above 47 V, critical for wide-temperature operation |
| Reverse Leakage IR | 10 µA max at VR = 38.8 V - confirms low standby current in high-impedance bias networks |
| Junction Temp. Range | -65 °C to +175 °C - supports operation in extended-environment military and space platforms |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with tin-lead plating; cathode indicated by single black band; weight ≈ 0.2 g; body diameter 1.42–2.29 mm, overall length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to system ground or lowest potential; establishes return path for Zener current |
| Cathode (banded end) | Regulated output node | Provides stable 51 V reference when reverse-biased; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Validated reliability for aerospace and defense programs requiring traceable lot data and screening per military standards |
| Metallurgical bond construction | Enables robust thermal performance (RθJL = 250 °C/W) and long-term stability under thermal shock |
| 1 µV/√Hz noise density | Supports ultra-low-noise voltage references without post-regulation filtering in precision instrumentation |
| Hermetic glass DO-35 package | Guarantees moisture resistance and long-term parameter stability in harsh environmental conditions |
| ±2% Zener tolerance (C suffix) | Reduces calibration overhead in production test vs. standard ±5% parts, improving yield in tight-tolerance designs |
Applications
| Avionics Power Conditioning | Satellite Voltage Reference |
|---|---|
Use Scenario: Regulating unregulated bus voltage in legacy flight control power supplies where EMI immunity and radiation hardness are mandatory. IC Role / Device Role / Timing Role: Shunt voltage regulator providing stable 51 V reference for op-amp biasing and comparator thresholds. Use Value: JANTXV1N4126C-1/TR's +0.100 %/°C tempco and -65 °C to +175 °C range ensure consistent regulation across aircraft operational envelope. |
Use Scenario: Generating precision bias for radiation-tolerant ADC front-ends in LEO satellite telemetry systems. IC Role / Device Role / Timing Role: Low-noise Zener reference source feeding a voltage divider network for 16-bit SAR ADC reference input. Use Value: 1 µV/√Hz noise density and inherent radiation hardness (per MicroNote 050) eliminate need for shielding or redundancy. |
| Ground-Based Radar Bias Supply | Nuclear Instrumentation Calibration |
Use Scenario: Stabilizing high-voltage bias rails in pulsed RF amplifier stages of air defense radar transmitters. IC Role / Device Role / Timing Role: Primary shunt regulator maintaining 51 V rail integrity during rapid load switching and thermal transients. Use Value: 500 mW power rating and metallurgical bond enable reliable operation at 125 °C junction temperature without derating penalties. |
Use Scenario: Calibrating gamma spectrometer detector bias supplies requiring traceable, stable reference voltages over 10+ year field deployments. IC Role / Device Role / Timing Role: Primary voltage standard in NIST-traceable calibration equipment used for field service of nuclear monitoring gear. Use Value: JANTXV1N4126C-1/TR's MIL-qualified lot traceability and ±2% tolerance reduce annual recalibration frequency and uncertainty budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4126US-1 | Same 51 V, ±2%, DO-213AA surface-mount package; RθJA = 400 °C/W (vs. 300 °C/W for DO-35); no JANTXV qualification | Used in space-constrained commercial PCBs where reflow compatibility is required but military screening is not mandated | Select when automated assembly and board density outweigh need for MIL-qualified screening and thermal performance |
| JANTXV1N4126D-1/TR | Identical 51 V rating and JANTXV qualification, but ±1% tolerance (D suffix); higher cost and longer lead time | Deployed in metrology-grade calibration instruments where ±1% initial accuracy reduces system-level trimming effort | Select only if tighter initial tolerance justifies cost premium and supply chain impact; JANTXV1N4126C-1/TR remains optimal for most avionics |
Compared with 1N4126US-1, JANTXV1N4126C-1/TR offers superior thermal resistance and full military qualification but requires through-hole assembly; compared with JANTXV1N4126D-1/TR, it trades ±1% tolerance for lower cost and broader availability while retaining identical reliability screening and thermal behavior.
Availability
JANTXV1N4126C-1/TR is available at Aetrix Electronics and suitable for avionics power conditioning, satellite voltage reference, and ground-based radar bias supply requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANTXV1N4126C-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, RF, and radiation-hardened components for defense, aerospace, and industrial markets.
JANTXV1N4126C-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for voltage regulation in mission-critical systems where parametric stability, long-term reliability, and environmental resilience are non-negotiable.
FAQ
What is the Zener voltage tolerance of JANTXV1N4126C-1/TR?
JANTXV1N4126C-1/TR has a nominal Zener voltage of 51.0 V with a ±2% tolerance, as indicated by the "C" suffix in the part number per Microsemi's nomenclature. This tolerance is specified at IZT = 250 mA and TA = 25 °C, and applies across the full qualified temperature range of -65 °C to +175 °C per MIL-PRF-19500/435 requirements.
Is JANTXV1N4126C-1/TR RoHS compliant?
No, JANTXV1N4126C-1/TR is not RoHS compliant. The "e3" RoHS designation appears only on commercial-grade versions of this family; JANTXV-level parts retain traditional tin-lead plating to meet MIL-STD-750 solderability and reliability requirements. RoHS compliance is explicitly excluded for JANTXV-qualified devices per Microsemi documentation.
What does the "TR" suffix mean in JANTXV1N4126C-1/TR?
The "TR" suffix indicates tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. JANTXV1N4126C-1/TR is supplied in reels containing standard quantities defined by Microsemi's packaging specification, with full traceability back to the original qualified lot - essential for aerospace and defense manufacturing.
How is the temperature coefficient of JANTXV1N4126C-1/TR determined?
JANTXV1N4126C-1/TR has a temperature coefficient of +0.100 %/°C, measured as the change in Zener voltage per degree Celsius change in junction temperature. This value is confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 and applies to the 51 V variant (1N4126-1 series), distinguishing it from lower-voltage parts with negative or mixed coefficients.
Can JANTXV1N4126C-1/TR replace commercial 1N4126C-1 in existing designs?
JANTXV1N4126C-1/TR shares identical electrical parameters and DO-35 mechanical form factor with commercial 1N4126C-1, but adds full MIL-PRF-19500/435 JANTXV qualification including extended temperature screening, lot traceability, and enhanced reliability testing. It is a drop-in replacement where military-grade assurance is required, though its higher cost and longer lead times should be evaluated against program needs.
JANTXV1N4126C-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)
JANTXV1N4126C-1/TR FAQ
1.How can I place an order for JANTXV1N4126C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4126C-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 JANTXV1N4126C-1/TR reliable?
The price and inventory of JANTXV1N4126C-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 JANTXV1N4126C-1/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4126C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4126C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4126C-1/TR?
JANTXV1N4126C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4126C-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 JANTXV1N4126C-1/TR?
For technical support, including JANTXV1N4126C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4126C-1/TR requirements.
6.How does Aetrix verify that JANTXV1N4126C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4126C-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 JANTXV1N4126C-1/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4126C-1/TR?
All JANTXV1N4126C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4126C-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 JANTXV1N4126C-1/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4126C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4126C-1/TR Tags
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