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Microchip Technology JANTXV1N4126D-1/TR
- Part No.:
- JANTXV1N4126D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4126D-1/TR.pdf
- Description:
- DIODE ZENER 51V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,162
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Product details
Overview
JANTXV1N4126D-1/TR from Microsemi is a 51 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded package, qualified to JANTXV level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTXV1N4126D-1/TR datasheet, JANTXV1N4126D-1/TR pinout, JANTXV1N4126D-1/TR application, or JANTXV1N4126D-1/TR equivalent, this part delivers precise 51 V regulation with ±1% tolerance, low noise density (1 µV/√Hz), and radiation-hardened operation across –65 °C to +175 °C junction temperature range.
Technical Context
This Zener diode operates in reverse breakdown mode with cathode-banded polarity, requiring the banded end to be held positive relative to the anode for regulation. Its metallurgical bond ensures stable long-term voltage reference performance under thermal cycling and mechanical stress.
It exhibits a +0.100 %/°C temperature coefficient above 50 V, dynamic impedance of 300 Ω at 250 mA test current, and maximum reverse leakage of 10 µA at 38.8 V - enabling stable regulation in precision analog references and overvoltage protection circuits where drift and noise must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 51.0 V ±1% at 250 mA - provides tight voltage reference for calibration and feedback loops |
| Power Dissipation | 500 mW at 25 °C, linearly derated to zero at 175 °C - supports continuous operation in high-temp avionics environments |
| Zener Impedance (ZZT) | 300 Ω at IZT = 250 mA - ensures minimal output voltage variation under load transients |
| Noise Density | 1 µV/√Hz - enables use in low-noise analog references and sensor excitation circuits |
| Temp Coefficient (αVZ) | +0.100 %/°C - predictable positive drift simplifies temperature compensation design |
| Reverse Leakage (IR) | ≤10 µA at 38.8 V - guarantees low standby current in battery-backed systems |
| Junction Temp Range | –65 °C to +175 °C - qualified for extended-range military and space applications |
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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to system ground or lower-potential rail; defines regulation reference point |
| Cathode (banded end) | Zener regulation output | Provides regulated 51 V when reverse-biased; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Validated reliability for mission-critical aerospace and defense platforms with full traceability |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and vibration stress |
| 1% Zener voltage tolerance (suffix D) | Reduces need for external trimming in precision voltage references and ADC references |
| Radiation hardness (MicroNote 050) | Enables use in low-earth orbit and nuclear-hardened electronics without derating |
| Low capacitance (typ. <1.5 pF) | Preserves high-frequency stability in RF bias networks and fast transient suppression |
Applications
| Aerospace Power Reference | Defense System Overvoltage Clamp |
|---|---|
Use Scenario: Primary voltage reference in satellite DC-DC converter feedback loop operating at –55 °C to +125 °C ambient. IC Role / Device Role / Timing Role: Zener regulator providing stable 51 V reference for error amplifier input. Use Value: ±1% tolerance and +0.100 %/°C TC enable <±2% total drift over full temp range without compensation circuitry. |
Use Scenario: Overvoltage clamp on 48 V vehicle power bus in armored ground vehicle ECU. IC Role / Device Role / Timing Role: Shunt protector triggered during load dump transients exceeding 60 V. Use Value: 500 mW rating and 300 Ω ZZT allow sustained clamping at 160 mA without thermal runaway. |
| Avionics Sensor Excitation | Nuclear Instrumentation Bias Supply |
Use Scenario: Precision excitation source for strain gauge bridge in flight control actuator. IC Role / Device Role / Timing Role: Low-noise 51 V bias supply for ratiometric measurement circuitry. Use Value: 1 µV/√Hz noise density prevents degradation of 24-bit sigma-delta ADC resolution. |
Use Scenario: High-stability bias for Geiger-Müller tube in radiation monitoring equipment deployed in reactor containment. IC Role / Device Role / Timing Role: Radiation-hardened Zener reference maintaining calibration integrity under neutron flux. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or redundancy overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4126US-1TR | Same 51 V, 1% spec, but in surface-mount DO-213AA package; no axial leads | Requires PCB rework for SMT assembly; unsuitable for through-hole prototyping or high-vibration wire-lead mounting | Select when board space is constrained and automated placement is available |
| JANS1N4126D-1 | Identical electrical specs and DO-35 package, but qualified to JANS (highest MIL-PRF-19500 level) with full lot traceability and screening | Required for spaceflight and nuclear command systems; carries higher cost and longer lead time | Select only when JANS-level radiation testing, burn-in, and lot acceptance testing are mandated |
Compared with JANTXV1N4126D-1/TR, the 1N4126US-1TR offers footprint reduction at the expense of mechanical robustness, while JANS1N4126D-1 adds screening rigor for extreme environments - neither is pin-compatible in form-factor or qualification scope.
Availability
JANTXV1N4126D-1/TR is available at Aetrix Electronics and suitable for aerospace power references, defense system overvoltage clamps, and avionics sensor excitation requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTXV1N4126D-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 defense, aerospace, and industrial markets.
The JANTXV1N4126D-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for precision voltage regulation in mission-critical systems where long-term stability, thermal resilience, and radiation tolerance are non-negotiable.
FAQ
What is the Zener voltage tolerance of JANTXV1N4126D-1/TR?
JANTXV1N4126D-1/TR has a nominal Zener voltage of 51.0 V with ±1% tolerance, as indicated by the "D" suffix in its part number per MIL-PRF-19500/435 nomenclature. This tolerance is verified at 250 mA test current and 25 °C ambient, and remains stable across its qualified temperature range due to metallurgical bond construction.
Is JANTXV1N4126D-1/TR RoHS compliant?
No, JANTXV1N4126D-1/TR is not RoHS compliant. The "e3" RoHS designation applies only to commercial-grade versions (e.g., 1N4126D-1e3); JANTXV-level parts retain tin-lead plating per MIL-STD-750 method 2026 to ensure solderability and reliability in high-reliability applications.
What is the maximum reverse leakage current for JANTXV1N4126D-1/TR?
The maximum reverse leakage current (IR) for JANTXV1N4126D-1/TR is 10 µA at 38.8 V, measured per MIL-PRF-19500/435 test conditions. This low leakage supports energy-efficient operation in battery-powered or standby-critical systems where quiescent current must be minimized.
Can JANTXV1N4126D-1/TR be used in surface-mount designs?
JANTXV1N4126D-1/TR uses a DO-35 axial-leaded package and is not suitable for standard surface-mount assembly. For SMT compatibility, Microsemi offers the functionally identical 1N4126US-1TR in DO-213AA package - however, it lacks JANTXV qualification and requires layout redesign.
What does the "TR" suffix mean in JANTXV1N4126D-1/TR?
The "TR" suffix indicates tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. JANTXV1N4126D-1/TR is supplied in reels of standard quantity (consult factory), with full traceability and MIL-qualified handling throughout distribution.
JANTXV1N4126D-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:
- ±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/TR FAQ
1.How can I place an order for JANTXV1N4126D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4126D-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 JANTXV1N4126D-1/TR reliable?
The price and inventory of JANTXV1N4126D-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 JANTXV1N4126D-1/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4126D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4126D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4126D-1/TR?
JANTXV1N4126D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4126D-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 JANTXV1N4126D-1/TR?
For technical support, including JANTXV1N4126D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4126D-1/TR requirements.
6.How does Aetrix verify that JANTXV1N4126D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4126D-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 JANTXV1N4126D-1/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4126D-1/TR?
All JANTXV1N4126D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4126D-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 JANTXV1N4126D-1/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4126D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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