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Microchip Technology JANTXV1N4126D-1
- Part No.:
- JANTXV1N4126D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4126D-1.pdf
- Description:
- DIODE ZENER 51V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,106
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Product details
Overview
JANTXV1N4126D-1 from Microsemi is a 51 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to MIL-PRF-19500/435 JANTXV level for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTXV1N4126D-1 datasheet, JANTXV1N4126D-1 pinout, JANTXV1N4126D-1 application, or JANTXV1N4126D-1 equivalent, key selection criteria include Zener voltage accuracy (±1%), low noise density (1 µV/√Hz), radiation hardness, and hermetic DO-35 packaging for stable operation across -65°C to +175°C.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 51.0 V at 250 mA test current, exhibiting a dynamic impedance of 300 Ω and temperature coefficient of +0.100 %/°C - indicating positive drift above 50 V. Its metallurgical bond construction ensures low leakage and stable breakdown characteristics under thermal stress.
Designed for military-grade reliability, JANTXV1N4126D-1 supports regulated output over wide current ranges (IZK to IZM = 38.8 mA max) and maintains <0.01 µA reverse leakage at VR = 38.8 V, with minimal capacitance (<1.5 pF typical per Figure 3) and inherent radiation hardness per MicroNote 050.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 51.0 V ±1% at 250 mA - enables precise reference generation in analog power monitoring circuits |
| Power Dissipation | 500 mW at 25°C, derated linearly to zero at 175°C - defines thermal design margin for PCB layout |
| Dynamic Impedance ZZT | 300 Ω at 250 mA - determines regulation stability under load transients |
| Noise Density ND | 1 µV/√Hz - critical for low-noise reference applications such as precision ADC biasing |
| Temp Coefficient αVZ | +0.100 %/°C - quantifies voltage drift with ambient temperature change in harsh environments |
| Reverse Leakage IR | ≤0.01 µA at 38.8 V - ensures minimal standby current in battery-backed systems |
| Junction Temp Range | -65°C to +175°C - supports operation in extended-temperature avionics and downhole electronics |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with cathode indicated by 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 | Reference ground node | Connected to system ground or lower-potential rail during Zener regulation |
| Cathode | Zener voltage output node | Banded end - supplies regulated 51 V when reverse-biased; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Guarantees screening, testing, and traceability for space- and defense-critical designs |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| 1% Zener voltage tolerance | Reduces need for post-production trimming in high-accuracy reference circuits |
| Radiation hardness | Enables use in satellite power subsystems without additional shielding or derating |
| Low noise density (1 µV/√Hz) | Supports clean analog signal chains in telemetry and sensor front-ends |
Applications
| Aerospace Power Monitoring | Defense Radar Bias Supply |
|---|---|
Use Scenario: Regulating reference voltage for analog-to-digital converters measuring bus voltage in satellite power distribution units. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable 51 V input to precision voltage dividers and ADC drivers. Use Value: ±1% tolerance and +0.100 %/°C TC ensure measurement accuracy remains within 0.5% over -40°C to +85°C operational range. | Use Scenario: Generating stable bias for GaN RF amplifier stages in airborne radar transmitters. IC Role / Device Role / Timing Role: High-reliability voltage clamp protecting gate drive circuitry from transient overvoltage. Use Value: Hermetic DO-35 package and JANTXV qualification ensure uninterrupted operation under vibration, humidity, and radiation exposure. |
| Nuclear Instrumentation | Downhole Telemetry |
Use Scenario: Providing reference voltage for pulse-height analyzers in radiation detection equipment deployed in nuclear facilities. IC Role / Device Role / Timing Role: Low-noise Zener source feeding comparator thresholds in spectroscopy signal conditioning. Use Value: 1 µV/√Hz noise density prevents baseline drift that would corrupt energy peak resolution. | Use Scenario: Stabilizing supply rails for MEMS pressure sensors operating at 175°C in oil/gas well logging tools. IC Role / Device Role / Timing Role: High-temperature shunt regulator maintaining reference integrity where active regulators fail. Use Value: -65°C to +175°C junction rating and metallurgical bond enable continuous function without thermal shutdown. |
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, 1% spec but in surface-mount DO-213AA package; no axial leads | Requires SMT assembly; unsuitable for through-hole prototyping or high-vibration mechanical retention | Select when board space is constrained and reflow capability exists |
| JANS1N4126D-1 | Identical electrical specs but qualified to JANS (highest MIL-PRF-19500 level); higher screening cost and longer lead time | Required only for mission-critical flight hardware where JANS-level radiation and burn-in testing are mandated | Select only if JANS certification is contractually required |
Compared with JANTXV1N4126D-1, the 1N4126US-1 offers footprint reduction at the expense of mechanical robustness, while JANS1N4126D-1 adds qualification rigor without electrical benefit - making JANTXV1N4126D-1 the optimal balance of performance, reliability, and procurement practicality for most high-integrity programs.
Availability
JANTXV1N4126D-1 is available at Aetrix Electronics and suitable for aerospace power monitoring, defense radar bias supply, and nuclear instrumentation requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for JANTXV1N4126D-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.
JANTXV1N4126D-1 belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for voltage reference stability, radiation tolerance, and extreme-temperature operation in safety-critical systems.
FAQ
What is the Zener voltage tolerance of JANTXV1N4126D-1?
JANTXV1N4126D-1 has a Zener voltage tolerance of ±1%, denoted by the "D" suffix in its nomenclature. This means its nominal 51.0 V Zener voltage is guaranteed between 50.49 V and 51.51 V at 250 mA test current and 25°C, supporting high-accuracy reference designs without external calibration.
Is JANTXV1N4126D-1 suitable for high-temperature operation?
Yes, JANTXV1N4126D-1 is rated for junction temperatures from -65°C to +175°C and features metallurgical bond construction that maintains parameter stability under thermal cycling. Its power dissipation is linearly derated from 500 mW at 25°C to zero at 175°C, enabling reliable use in downhole and avionics applications.
What does the "JANTXV" prefix indicate for JANTXV1N4126D-1?
The "JANTXV" prefix certifies that JANTXV1N4126D-1 meets MIL-PRF-19500/435 requirements at the JANTXV reliability level - including extended temperature testing, lot acceptance testing, and failure analysis traceability. It reflects higher screening than JAN or JANTX, with verified performance up to 175°C.
Does JANTXV1N4126D-1 have low noise characteristics?
Yes, JANTXV1N4126D-1 exhibits a noise density of 1 µV/√Hz at its 250 mA test current, among the lowest in the 1N41xx series. This makes it suitable for precision analog applications such as ADC references and sensor excitation where voltage noise directly impacts measurement resolution.
What package type is used for JANTXV1N4126D-1?
JANTXV1N4126D-1 uses the DO-35 (DO-204AH) axial-leaded, hermetically sealed glass package. The cathode is marked by a band on the glass body, and leads are tin-lead or RoHS-compliant matte-tin plated, meeting MIL-STD-750 solderability requirements.
JANTXV1N4126D-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):
- 51 V
- Tolerance:
- ±1%
- 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)
JANTXV1N4126D-1 FAQ
1.How can I place an order for JANTXV1N4126D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4126D-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 JANTXV1N4126D-1 reliable?
The price and inventory of JANTXV1N4126D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4126D-1 is usually 5 days.
3.What payment methods are accepted for JANTXV1N4126D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4126D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4126D-1?
JANTXV1N4126D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4126D-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 JANTXV1N4126D-1?
For technical support, including JANTXV1N4126D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4126D-1 requirements.
6.How does Aetrix verify that JANTXV1N4126D-1 is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4126D-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 JANTXV1N4126D-1 meets industry standards.
7.What is the process for return or replacement of JANTXV1N4126D-1?
All JANTXV1N4126D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4126D-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 JANTXV1N4126D-1 part is unused and in its original packaging.
Return procedure for JANTXV1N4126D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4126D-1 Tags
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Diodes Incorporated
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