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Microchip Technology JANTX1N4124C-1
- Part No.:
- JANTX1N4124C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4124C-1.pdf
- Description:
- DIODE ZENER 43V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,678
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Product details
Overview
JANTX1N4124C-1 from Microsemi is a 500 mW, 43 V Zener voltage regulator diode in DO-35 glass axial-leaded package, qualified to JANTX reliability level per MIL-PRF-19500/435, with 2% voltage tolerance, 250 mA test current, and 250 Ω dynamic impedance at IZT - used for precision voltage reference and regulation in military-grade power supplies and analog instrumentation.
For engineers reviewing the JANTX1N4124C-1 datasheet, JANTX1N4124C-1 pinout, JANTX1N4124C-1 application, or JANTX1N4124C-1 equivalent, key selection criteria include Zener voltage accuracy (±2%), low noise density (≤1 µV/√Hz below 6.8 V), thermal resistance (250 °C/W junction-to-lead), and hermetic DO-35 packaging for high-reliability environments.
Technical Context
This device operates as a reverse-biased Zener regulator with metallurgically bonded construction for stable breakdown characteristics across temperature. It delivers 43 V nominal regulation at 250 mA test current, with dynamic impedance of 250 Ω and maximum reverse leakage of 0.01 µA at 32.7 V.
Its temperature coefficient is +0.095 %/°C, indicating positive drift with rising temperature, and it supports full-rated power dissipation up to 500 mW at 25 °C, derating linearly to zero at 175 °C ambient or lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 43.0 V ±2% at 250 mA - ensures tight regulation for reference circuits requiring <0.86 V total deviation. |
| Power Dissipation | 500 mW at 25 °C - supports stable operation in compact, unheatsinked designs with proper lead length. |
| Dynamic Impedance ZZT | 250 Ω at IZT = 250 mA - limits output voltage variation under load changes in feedback references. |
| Reverse Leakage IR | ≤0.01 µA at VR = 32.7 V - minimizes error current in high-impedance bias networks. |
| Temp Coefficient αVZ | +0.095 %/°C - enables predictable drift compensation in temperature-stable references. |
| Noise Density ND | ≤1 µV/√Hz - critical for low-noise analog front-ends and precision ADC references. |
| Junction Temp Range | –65 to +175 °C - validated for extended-range aerospace and downhole electronics. |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package; cathode indicated by band; banded end is anode when used in forward conduction, but functions as cathode (positive terminal) during Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (banded end) | Zener cathode connection | Connected to higher potential in regulation mode; polarity marking defines reverse-bias orientation. |
| Cathode (unbanded end) | Zener anode connection | Connected to lower potential; establishes reference node at regulated 43 V above this point. |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Ensures long-term parameter stability and reduced parameter shift under thermal cycling. |
| MIL-PRF-19500/435 JANTX qualification | Validated screening for burn-in, temperature cycling, and life testing per military standards. |
| Hermetic glass DO-35 package | Prevents moisture ingress and parameter drift in humid or corrosive environments. |
| Low noise density ≤1 µV/√Hz | Enables use in ultra-low-noise voltage references without external filtering. |
| Non-ESD-sensitive per MIL-STD-750 Method 1020 | Eliminates need for ESD handling protocols during board assembly and rework. |
Applications
| Avionics Power Reference | Military Data Acquisition |
|---|---|
Use Scenario: Stable 43 V reference in analog-to-digital converter (ADC) front-end circuitry for flight control sensor signal conditioning. IC Role / Device Role / Timing Role: Zener voltage reference providing fixed bias point for op-amp gain stages and ADC input scaling. Use Value: Tight ±2% tolerance and low 1 µV/√Hz noise ensure sub-LSB measurement accuracy over –55 to +125 °C operating range. | Use Scenario: Regulation of analog supply rails in ruggedized field-deployable data loggers monitoring vibration, pressure, and temperature. IC Role / Device Role / Timing Role: Primary shunt regulator maintaining clean 43 V rail for precision op-amps and isolated signal conditioners. Use Value: JANTX qualification and –65 to +175 °C junction rating guarantee uninterrupted operation in extreme environmental conditions. |
| Satellite Payload Biasing | Radiation-Hardened Instrumentation |
Use Scenario: Bias voltage generation for photodiode transimpedance amplifiers in optical telemetry receivers aboard LEO satellites. IC Role / Device Role / Timing Role: Low-noise Zener reference establishing stable transimpedance gain setpoint independent of supply variation. Use Value: Inherent radiation hardness per MicroNote 050 allows operation in total ionizing dose (TID) >100 krad(Si) environments without parameter degradation. | Use Scenario: Voltage reference in nuclear reactor monitoring systems where long-term calibration stability and radiation immunity are mandatory. IC Role / Device Role / Timing Role: Primary reference element in redundant analog monitoring channels requiring traceable metrology-grade stability. Use Value: Metallurgical bonding and hermetic sealing maintain Zener voltage drift <0.1% over 10-year service life under continuous bias. |
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 Zener, DO-213AA surface-mount package; no axial leads; RoHS-compliant only. | Requires SMT assembly; unsuitable for through-hole prototyping or high-vibration mechanical retention. | Select when board space is constrained and reflow capability exists; verify thermal pad layout matches RθJL spec. |
| JANTXV1N4124C-1 | Identical electrical specs but qualified to JANTXV level - includes additional screening (e.g., 100% lot acceptance testing, enhanced burn-in). | Required for mission-critical avionics or space programs demanding highest reliability assurance. | Choose when program specification mandates JANTXV or higher; expect longer lead times and higher cost. |
Compared with JANTX1N4124C-1, the JANTXV variant adds verified lot-level reliability screening while the 1N4124US-1 offers footprint reduction at the expense of mechanical mounting flexibility and qualification scope.
Availability
JANTX1N4124C-1 is available at Aetrix Electronics and suitable for avionics power reference, military data acquisition, and satellite payload biasing requiring stable component supply, long-lifecycle support, and traceable mil-spec sourcing.
Supply support for JANTX1N4124C-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, radiation-hardened, and defense-grade analog and mixed-signal components.
The JANTX1N4124C-1 belongs to Microsemi's legacy 1N4099–1N4135 series of mil-qualified Zener regulators, designed specifically for precision voltage reference in aerospace, defense, and industrial systems where parameter stability and long-term reliability are non-negotiable.
FAQ
What is the Zener voltage tolerance for JANTX1N4124C-1?
JANTX1N4124C-1 has a nominal Zener voltage of 43.0 V with a tolerance of ±2%, denoted by the "C" suffix in the part number per Microsemi's nomenclature. This tolerance is guaranteed over the full operating temperature range and after MIL-PRF-19500/435 JANTX screening, ensuring consistent performance in high-reliability applications.
Is JANTX1N4124C-1 RoHS compliant?
No, JANTX1N4124C-1 is not RoHS compliant. The "e3" suffix indicates RoHS compliance, which is only available on commercial-grade versions (e.g., 1N4124C-1e3). JANTX-level parts retain tin-lead plating to meet MIL-STD-750 solderability requirements and are exempt from RoHS under defense procurement exceptions.
What is the maximum Zener current IZM for JANTX1N4124C-1?
The maximum Zener current IZM for JANTX1N4124C-1 is 40 mA, derived from its 500 mW power rating and 43 V Zener voltage (P = V × I → I = 0.5 W / 43 V ≈ 11.6 mA), but the datasheet specifies 40 mA as the absolute maximum DC current under defined thermal conditions - consistent with its 250 mA test current (IZT) and safe operating area limits.
Does JANTX1N4124C-1 require heatsinking?
JANTX1N4124C-1 does not require external heatsinking under typical conditions. Its thermal resistance junction-to-lead is 250 °C/W with 3/8″ (10 mm) lead length, allowing full 500 mW dissipation at 25 °C lead temperature. Derating begins at 50 °C lead temp, reaching zero at 175 °C - adequate for most through-hole PCB layouts with standard copper pads.
How is polarity marked on JANTX1N4124C-1?
JANTX1N4124C-1 uses a single black band to mark the cathode terminal. During Zener regulation, the banded end is connected to the higher-potential node (i.e., functions as the cathode), while the unbanded end serves as the anode/reference ground node - opposite to forward-bias convention but standard for Zener diodes.
JANTX1N4124C-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)
JANTX1N4124C-1 FAQ
1.How can I place an order for JANTX1N4124C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4124C-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 JANTX1N4124C-1 reliable?
The price and inventory of JANTX1N4124C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4124C-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4124C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4124C-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4124C-1?
JANTX1N4124C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4124C-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 JANTX1N4124C-1?
For technical support, including JANTX1N4124C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4124C-1 requirements.
6.How does Aetrix verify that JANTX1N4124C-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4124C-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 JANTX1N4124C-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4124C-1?
All JANTX1N4124C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4124C-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 JANTX1N4124C-1 part is unused and in its original packaging.
Return procedure for JANTX1N4124C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4124C-1 Tags
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