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Microchip Technology JANTXV1N4124C-1
- Part No.:
- JANTXV1N4124C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4124C-1.pdf
- Description:
- DIODE ZENER 43V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,187
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Product details
Overview
JANTXV1N4124C-1 from Microsemi is a 500 mW, 43 V, ±2% tolerance 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 JANTXV1N4124C-1 datasheet, JANTXV1N4124C-1 pinout, JANTXV1N4124C-1 application, or JANTXV1N4124C-1 equivalent, key selection criteria include Zener voltage tolerance (±2%), max noise density (1 µV/√Hz), dynamic impedance (250 Ω), temperature coefficient (+0.095 %/°C), and JANTXV-level qualification for extended temperature operation.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 43.0 V at 250 mA test current. Its metallurgical bond construction ensures stable breakdown characteristics and low long-term drift under thermal cycling and radiation exposure.
The JANTXV1N4124C-1 exhibits a positive temperature coefficient of +0.095 %/°C and maintains ≤1 µV/√Hz noise density - critical for low-noise reference circuits in analog signal chains and precision instrumentation where voltage stability over temperature and minimal broadband noise are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 43.0 V ±2% at IZT = 250 mA - defines precise regulation point for feedback loops in regulated DC-DC converters. |
| Power Dissipation | 500 mW at TL = 25 °C - supports stable operation in compact through-hole designs with 3/8″ lead length. |
| Dynamic Impedance ZZT | 250 Ω at IZT = 250 mA - determines output impedance seen by load; lower values improve regulation against current transients. |
| Noise Density | 1 µV/√Hz - enables use in ultra-low-noise voltage references for ADC/DAC biasing and sensor excitation. |
| Temp Coefficient αVZ | +0.095 %/°C - quantifies voltage drift over -65 to +175 °C operating range; essential for wide-temperature military systems. |
| Max Reverse Current IR | 0.01 µA at VR = 32.7 V - ensures minimal leakage in high-impedance sensing nodes and standby power domains. |
| Junction Temp Range | -65 to +175 °C - validated for operation in harsh environments including space-grade thermal cycling and reflow profiles. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package. Cathode indicated by band; operated with banded end positive for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; establishes reference potential for regulation. |
| Cathode | Zener regulation terminal | Banded end; connected to unregulated input; sinks current to maintain 43 V across load. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Validated reliability for aerospace flight hardware and defense electronics requiring extended lifetime and radiation tolerance. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock, ensuring long-term parameter stability in mission-critical systems. |
| 1 µV/√Hz noise density | Enables direct use in high-resolution analog front-ends without external filtering or buffering stages. |
| Hermetic glass DO-35 package | Provides moisture and contaminant immunity for operation in humid, saline, or vacuum environments. |
| ±2% Zener voltage tolerance (C grade) | Reduces need for post-manufacture trimming in precision reference designs, lowering BOM and calibration cost. |
Applications
| Aerospace Power Reference | Defense System Voltage Monitor |
|---|---|
Use Scenario: Regulating reference voltage for ADCs in satellite telemetry subsystems operating across -55 to +125 °C. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable 43 V bias for precision voltage dividers feeding SAR ADCs. Use Value: JANTXV1N4124C-1's +0.095 %/°C tempco and 1 µV/√Hz noise ensure <0.1% full-scale error drift and <1 LSB noise contribution over temperature. | Use Scenario: Overvoltage detection circuit in radar transmitter power supply monitoring 48 V bus integrity. IC Role / Device Role / Timing Role: Zener-clamped comparator reference enabling fast trip response to >45 V fault conditions. Use Value: 43 V ±2% tolerance and 250 Ω ZZT allow accurate threshold setting with <100 ms response time and no calibration drift over 10-year field life. |
| Avionics Sensor Excitation | Tactical Radio Bias Supply |
Use Scenario: Providing stable excitation voltage for strain gauge bridges in flight control surface position sensors. IC Role / Device Role / Timing Role: Low-noise shunt regulator supplying 43 V to Wheatstone bridge, rejecting supply ripple and thermal EMF. Use Value: Hermetic DO-35 package and metallurgical bond prevent parameter shift during vibration and humidity cycling per RTCA DO-160 Section 21. | Use Scenario: Generating clean local bias rail for RF power amplifier stages in manpack radios operating in desert environments. IC Role / Device Role / Timing Role: Zener-derived 43 V reference regulating LDO input to minimize thermal runaway risk in high ambient temperatures. Use Value: -65 to +175 °C junction rating and JANTXV qualification guarantee uninterrupted operation at 70 °C ambient with 15 K temperature margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4124US-1 | Same 43 V, ±2%, DO-213AA surface-mount package; RθJA = 400 °C/W vs. 300 °C/W for DO-35. | Requires PCB rework for SMT assembly; unsuitable for through-hole prototyping or legacy board repair. | Select when automated assembly and board space reduction outweigh thermal derating penalties. |
| JANTXV1N4124D-1 | Identical 43 V rating but ±1% tolerance (D grade); same DO-35 package and JANTXV qualification. | Used where tighter initial accuracy is required for untrimmed reference designs, e.g., calibration standards. | Choose only if ±1% tolerance is mandated; adds cost with no benefit for typical regulation applications. |
Compared with JANTXV1N4124C-1, the 1N4124US-1 trades thermal performance for SMT compatibility, while JANTXV1N4124D-1 offers higher initial accuracy at increased cost-neither is pin-compatible drop-in replacement due to differing packaging or tolerance-driven design constraints.
Availability
JANTXV1N4124C-1 is available at Aetrix Electronics and suitable for aerospace power reference, defense system voltage monitor, and avionics sensor excitation requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANTXV1N4124C-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.
The JANTXV1N4124C-1 belongs to Microsemi's MIL-qualified Zener diode family designed specifically for precision voltage regulation in mission-critical systems where radiation hardness, thermal stability, and long-term parameter consistency are mandatory.
FAQ
What is the Zener voltage tolerance of JANTXV1N4124C-1?
JANTXV1N4124C-1 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number per Microsemi's nomenclature. This means its nominal 43.0 V Zener voltage is guaranteed between 42.14 V and 43.86 V at 250 mA test current and 25 °C ambient, supporting precision regulation without post-production trimming.
Is JANTXV1N4124C-1 suitable for high-temperature operation?
Yes, JANTXV1N4124C-1 is rated for junction temperatures from -65 to +175 °C and qualified to MIL-PRF-19500/435 JANTXV level. Its metallurgically bonded construction and hermetic DO-35 package ensure reliable operation in extended temperature environments such as engine-mounted avionics or desert-deployed defense electronics.
What is the maximum noise density specification for JANTXV1N4124C-1?
JANTXV1N4124C-1 has a maximum noise density of 1 µV/√Hz, measured at 1 kHz–3 kHz bandwidth with 250 mA Zener test current. This ultra-low noise performance makes JANTXV1N4124C-1 suitable for precision analog circuits including high-resolution data acquisition and sensor excitation where broadband noise must be minimized.
Does JANTXV1N4124C-1 require heatsinking in standard applications?
No, JANTXV1N4124C-1 does not require external heatsinking when operated within its 500 mW power limit and with 3/8″ (10 mm) lead length from body, achieving RθJL = 250 °C/W. Derating begins linearly at 50 °C lead temperature, reaching zero dissipation at 175 °C - sufficient for most through-hole mounted applications without added thermal mass.
How is polarity marked on JANTXV1N4124C-1?
JANTXV1N4124C-1 uses a cathode band marking on the glass DO-35 body to indicate polarity. The banded end is the cathode and must be connected to the higher-potential side (e.g., unregulated input) for proper Zener regulation; the unbanded end is the anode and connects to system ground or return path.
JANTXV1N4124C-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):
- 43 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 250 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 32.7 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)
JANTXV1N4124C-1 FAQ
1.How can I place an order for JANTXV1N4124C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4124C-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 JANTXV1N4124C-1 reliable?
The price and inventory of JANTXV1N4124C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4124C-1 is usually 5 days.
3.What payment methods are accepted for JANTXV1N4124C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4124C-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4124C-1?
JANTXV1N4124C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4124C-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 JANTXV1N4124C-1?
For technical support, including JANTXV1N4124C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4124C-1 requirements.
6.How does Aetrix verify that JANTXV1N4124C-1 is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4124C-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 JANTXV1N4124C-1 meets industry standards.
7.What is the process for return or replacement of JANTXV1N4124C-1?
All JANTXV1N4124C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4124C-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 JANTXV1N4124C-1 part is unused and in its original packaging.
Return procedure for JANTXV1N4124C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4124C-1 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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