Microchip Technology JANTXV1N4125C-1/TR
- Part No.:
- JANTXV1N4125C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4125C-1/TR.pdf
- Description:
- DIODE ZENER 47V 500MW DO204AH
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
JANTXV1N4125C-1/TR from Microsemi is a 47 V, 2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 axial package, qualified to JANTXV level per MIL-PRF-19500/435, used for precision voltage regulation in high-reliability military and aerospace power supply circuits.
For engineers reviewing the JANTXV1N4125C-1/TR datasheet, JANTXV1N4125C-1/TR pinout, JANTXV1N4125C-1/TR application, or JANTXV1N4125C-1/TR equivalent, key selection factors include its 47 V nominal Zener voltage at 250 mA test current, 250 Ω maximum dynamic impedance, 40 µV/√Hz noise density, and operation across –65 °C to +175 °C junction temperature range.
Technical Context
This device operates as a two-terminal voltage reference in reverse-bias breakdown mode, with cathode band marking polarity. Its metallurgical bond construction ensures stable Zener voltage under thermal cycling and radiation exposure, supporting MIL-qualified reliability requirements up to JANTXV level.
It delivers regulated output over wide current (250 mA IZT, 35.8 mA IZM) and temperature (–65 °C to +175 °C) ranges, with low capacitance (<1 pF typical at 47 V) and minimal temperature coefficient (+0.095 %/°C), enabling use in low-noise analog references and stable bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 47 V at 250 mA test current - defines precise regulation point for feedback loops and reference generation |
| Zener Tolerance | ±2% - enables tighter output voltage control vs. standard ±5% parts in critical power rails |
| Power Dissipation | 500 mW at 25 °C - supports robust operation in compact through-hole designs with linear derating to zero at 175 °C |
| Dynamic Impedance | 250 Ω max at 250 mA - limits regulation error under load transients in precision analog circuits |
| Noise Density | 40 µV/√Hz - ensures low-noise performance in sensitive voltage reference and sensor excitation applications |
| Temp Coefficient | +0.095 %/°C - provides predictable drift behavior for temperature-compensated designs |
| Junction Temp Range | –65 °C to +175 °C - meets extended environmental requirements for avionics and downhole electronics |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package; cathode indicated by single black band; leads tinned or RoHS-compliant matte tin (commercial only); weight ≈0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-bias current sink terminal | Connected to lower-potential node; carries full Zener current during regulation |
| Cathode | Regulated output reference terminal | Banded end; supplies stable 47 V reference; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Ensures mechanical integrity and long-term Zener voltage stability under thermal shock and vibration |
| MIL-PRF-19500/435 JANTXV qualification | Validates performance for high-reliability defense and space programs requiring traceable lot data and screening |
| Low noise density (40 µV/√Hz) | Reduces voltage reference uncertainty in precision ADCs, DACs, and instrumentation amplifiers |
| Hermetic glass DO-35 package | Provides moisture and contaminant immunity for operation in harsh, high-humidity, or vacuum environments |
| Non-ESD-sensitive per MIL-STD-750 Method 1020 | Eliminates need for ESD handling controls during board assembly and field maintenance |
Applications
| Avionics Power Reference | Satellite DC-DC Converter Feedback |
|---|---|
Use Scenario: Providing stable 47 V reference for voltage-controlled oscillator (VCO) tuning in radar transceiver power management. IC Role / Device Role / Timing Role: Two-terminal Zener reference establishing fixed bias point for RF amplifier stage regulation. Use Value: Maintains <±0.5% output variation over –55 °C to +125 °C ambient due to low tempco and metallurgical bond stability. | Use Scenario: Setting feedback threshold in isolated flyback converter regulating 48 V bus for payload subsystems. IC Role / Device Role / Timing Role: Precision shunt regulator defining secondary-side error amplifier reference voltage. Use Value: Enables ±2% output accuracy without trimming, leveraging 47 V ±2% tolerance and 250 Ω dynamic impedance. |
| Radiation-Hardened Sensor Bias | Tactical Radio LDO Reference |
Use Scenario: Supplying bias voltage to radiation-tolerant photodiode front-end in nuclear monitoring equipment. IC Role / Device Role / Timing Role: Low-noise, radiation-hardened Zener source replacing active references in high-dose environments. Use Value: Delivers <1 µV/√Hz effective noise floor below 1 kHz and inherent TID hardness per MicroNote 050. | Use Scenario: Generating clean 47 V reference for programmable LDO enabling multi-rail voltage sequencing in handheld radios. IC Role / Device Role / Timing Role: Primary shunt reference feeding external op-amp error amplifier in adjustable LDO architecture. Use Value: Supports fast transient response via low 250 Ω dynamic impedance and stable regulation across 10–100 mA load range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4125US-1 | Same 47 V, 2% spec but in surface-mount DO-213AA package; no axial leads | Requires PCB redesign for SMT placement; eliminates lead-induced inductance in high-frequency feedback paths | Select when board space is constrained and reflow assembly is preferred over through-hole soldering |
| JANTXV1N4125D-1/TR | Identical 47 V rating and JANTXV qualification, but ±1% tolerance instead of ±2% | Used where tighter regulation accuracy is required, e.g., metrology-grade calibration references | Choose only if system-level tolerance budget demands <±1% Zener voltage deviation |
Compared with JANTXV1N4125C-1/TR, the 1N4125US-1 offers identical electrical specs in a smaller footprint but requires layout change, while JANTXV1N4125D-1/TR improves voltage accuracy at higher cost and tighter test screening-neither is pin-compatible due to differing packages or tolerance-driven qualification paths.
Availability
JANTXV1N4125C-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite DC-DC converter feedback, and radiation-hardened sensor bias applications requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for JANTXV1N4125C-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.
JANTXV1N4125C-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode product line, designed specifically for precision voltage regulation in mission-critical systems where long-term stability, radiation tolerance, and extreme temperature operation are mandatory.
FAQ
What is the Zener voltage tolerance of JANTXV1N4125C-1/TR?
JANTXV1N4125C-1/TR has a nominal Zener voltage of 47 V with a ±2% tolerance, meaning its actual regulation voltage falls between 46.06 V and 47.94 V at 250 mA test current and 25 °C. This tighter tolerance than standard ±5% Zeners supports higher accuracy in feedback and reference circuits without external trimming.
Is JANTXV1N4125C-1/TR suitable for high-temperature operation?
Yes, JANTXV1N4125C-1/TR is rated for junction temperatures from –65 °C to +175 °C and is qualified to JANTXV level per MIL-PRF-19500/435. Its metallurgically bonded construction ensures stable Zener voltage and low parameter drift across this full range, making it appropriate for engine bay, downhole, and avionics applications.
What does the "C" in JANTXV1N4125C-1/TR indicate?
The "C" in JANTXV1N4125C-1/TR denotes ±2% Zener voltage tolerance per the Microsemi part nomenclature. It follows the JEDEC-standardized naming convention where "C" = 2%, "D" = 1%, and blank = 5%. This letter appears directly after the base type number and before the dash and suffixes.
Does JANTXV1N4125C-1/TR require special ESD handling?
No, JANTXV1N4125C-1/TR is non-sensitive to ESD per MIL-STD-750 Method 1020. Its glass DO-35 package and metallurgical bond structure eliminate the need for ESD-safe workstations or packaging during handling and assembly-unlike many modern silicon-based discrete devices.
What is the maximum Zener current for JANTXV1N4125C-1/TR?
The maximum Zener current (IZM) for JANTXV1N4125C-1/TR is 35.8 mA at 25 °C ambient, derived from its 500 mW power rating and 47 V Zener voltage. At elevated temperatures, this value decreases linearly per the derating curve in Figure 2, reaching zero at 175 °C junction temperature.
JANTXV1N4125C-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):
- 47 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 250 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 35.8 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)
JANTXV1N4125C-1/TR FAQ
1.How can I place an order for JANTXV1N4125C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4125C-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 JANTXV1N4125C-1/TR reliable?
The price and inventory of JANTXV1N4125C-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 JANTXV1N4125C-1/TR is usually 5 days.
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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 JANTXV1N4125C-1/TR?
For technical support, including JANTXV1N4125C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4125C-1/TR requirements.
6.How does Aetrix verify that JANTXV1N4125C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4125C-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 JANTXV1N4125C-1/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4125C-1/TR?
All JANTXV1N4125C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4125C-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 JANTXV1N4125C-1/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4125C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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