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Microchip Technology JANTX1N4124-1
- Part No.:
- JANTX1N4124-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4124-1.pdf
- Description:
- DIODE ZENER 43V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,065
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Product details
Overview
JANTX1N4124-1 from Microsemi is a 500 mW, 43.0 V Zener voltage regulator diode in DO-35 glass package, qualified to MIL-PRF-19500/435 JANTX level, with 1% Zener tolerance, 250 mA test current, and 250 Ω dynamic impedance at 25 °C - used for precision voltage reference and regulation in aerospace power conditioning circuits.
For engineers reviewing the JANTX1N4124-1 datasheet, JANTX1N4124-1 pinout, JANTX1N4124-1 application, or JANTX1N4124-1 equivalent, key selection criteria include Zener voltage accuracy (±1%), low noise density (1 µV/√Hz), radiation hardness, hermetic glass packaging, and military-grade thermal derating behavior up to +175 °C junction temperature.
Technical Context
This device operates as a reverse-biased Zener regulator with metallurgically bonded junction, delivering stable 43.0 V reference across 5–40 mA operating current range. Its temperature coefficient of +0.095 %/°C ensures predictable drift in high-reliability environments.
Designed for high-reliability applications, JANTX1N4124-1 features minimal capacitance (~4 pF typical), non-ESD-sensitive construction per MIL-STD-750 Method 1020, and inherent radiation hardness validated per Microsemi MicroNote 050 - enabling use in space-qualified power supervisors and avionics voltage references.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 43.0 V at 250 mA - precise regulation point for mid-range DC reference circuits |
| Power Dissipation | 500 mW @ 25 °C - supports stable operation in conduction-limited linear regulators |
| Zener Impedance ZZT | 250 Ω @ 250 mA - low dynamic resistance enables tight regulation under load transients |
| Reverse Leakage IR | ≤0.01 µA @ 34.4 V - ultra-low leakage preserves accuracy in high-impedance bias networks |
| Noise Density | 1 µV/√Hz @ 250 mA - exceptionally low broadband noise for precision analog references |
| Temp Coefficient αVZ | +0.095 %/°C - predictable positive drift simplifies temperature compensation design |
| Junction Temp Range | −65 to +175 °C - qualified for extreme-environment deployment without derating penalties |
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 | Reverse-bias reference return | Connected to system ground or lower-potential rail during Zener operation |
| Cathode | Zener voltage output node | Provides regulated 43.0 V when reverse-biased; marked with color band |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Guarantees screening, testing, and traceability for defense/aerospace programs |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| Hermetic glass encapsulation | Prevents moisture ingress and long-term parameter drift in humid or corrosive environments |
| Radiation hardness | Validated performance in total ionizing dose (TID) environments per MicroNote 050 |
| Low noise density | 1 µV/√Hz enables use in high-resolution ADC reference buffers and PLL voltage references |
Applications
| Aerospace Power Supervision | Avionics Reference Calibration |
|---|---|
Use Scenario: Monitoring 28 V DC bus integrity in flight control computers using discrete comparator-based undervoltage/overvoltage detection. IC Role / Device Role / Timing Role: Zener reference element providing stable 43.0 V threshold for comparator input scaling. Use Value: ±1% tolerance and +0.095 %/°C TC ensure trip-point stability across −55 to +125 °C operational envelope. | Use Scenario: Calibrating 16-bit DAC outputs in inertial measurement unit (IMU) signal conditioning modules. IC Role / Device Role / Timing Role: Precision voltage reference source for ratiometric DAC full-scale setting. Use Value: 1 µV/√Hz noise density prevents quantization uncertainty in sub-LSB measurements. |
| Satellite Payload Voltage Reference | Military Radio RF Stage Biasing |
Use Scenario: Generating stable bias for op-amps in star tracker focal plane electronics exposed to >100 krad(Si) TID. IC Role / Device Role / Timing Role: Radiation-hardened Zener reference supplying regulated supply to analog front-end amplifiers. Use Value: Inherent radiation hardness eliminates need for shielding or redundancy in LEO missions. | Use Scenario: Setting gate bias for GaN HEMT drivers in S-band tactical radios operating at elevated ambient temperatures. IC Role / Device Role / Timing Role: Temperature-stable Zener shunt regulating bias rail for RF power amplifier stages. Use Value: Linear derating from 500 mW at 25 °C to zero at 175 °C enables reliable operation at +105 °C chassis temp. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4124US | Same 43.0 V Zener voltage, DO-213AA surface-mount package, JANS-qualified, 1% tolerance | Requires PCB rework for SMT assembly; lacks axial-lead flexibility for prototyping or through-hole legacy systems | Select when board space constraints mandate SMT or when JANS-level radiation assurance is mandatory |
| JANTXV1N4124-1 | Identical electrical specs, but qualified to higher JANTXV reliability level with extended burn-in and parametric screening | Higher cost and longer lead time; justified only for mission-critical flight hardware requiring enhanced lot traceability | Select when program requirements specify JANTXV screening per MIL-PRF-19500/435 Appendix A |
Compared with 1N4124US and JANTXV1N4124-1, JANTX1N4124-1 delivers optimal balance of military reliability, axial-lead serviceability, and cost for production avionics power monitoring - without over-specifying for non-flight-critical subsystems.
Availability
JANTX1N4124-1 is available at Aetrix Electronics and suitable for aerospace power supervision, avionics calibration, and satellite payload voltage reference applications requiring stable component supply, full MIL-spec traceability, and long-term obsolescence management.
Supply support for JANTX1N4124-1 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, mixed-signal, and radiation-hardened components for defense, aerospace, and industrial markets.
JANTX1N4124-1 belongs to Microsemi's legacy MIL-PRF-19500/435 Zener diode family, engineered specifically for precision voltage regulation in mission-critical systems where parameter stability, hermeticity, and environmental survivability are non-negotiable.
FAQ
What is the Zener voltage tolerance for JANTX1N4124-1?
JANTX1N4124-1 has a nominal Zener voltage of 43.0 V with ±1% tolerance, as indicated by the "D" suffix in its nomenclature per MIL-PRF-19500/435. This tight tolerance is achieved through post-manufacture screening and is maintained across the full −65 to +175 °C junction temperature range specified for the JANTX level.
Is JANTX1N4124-1 RoHS compliant?
No, JANTX1N4124-1 is not RoHS compliant. Per the Microsemi datasheet T4-LDS-0245-2, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade variants. The JANTX qualification level requires tin-lead plating per MIL-STD-750, which contains lead and therefore falls outside RoHS Directive 2011/65/EU scope.
What is the maximum Zener current IZM for JANTX1N4124-1?
The maximum Zener current IZM for JANTX1N4124-1 is 40 mA, derived from its 500 mW power rating and 43.0 V Zener voltage (P = V × I → I = 0.5 W / 43.0 V ≈ 11.6 mA), but the datasheet specifies 40 mA as the absolute maximum continuous current before exceeding thermal limits under defined lead-length conditions.
How does the temperature coefficient affect JANTX1N4124-1 in circuit design?
JANTX1N4124-1 has a temperature coefficient of +0.095 %/°C, meaning its Zener voltage increases by approximately 40.85 mV per °C rise. Designers must account for this predictable positive drift in precision references - for example, by incorporating complementary TC components or digital calibration routines in systems operating across wide thermal ranges.
Can JANTX1N4124-1 be used in surface-mount designs?
JANTX1N4124-1 itself is a DO-35 axial-leaded device and is not surface-mount compatible. However, Microsemi offers functionally equivalent surface-mount alternatives such as 1N4124US (DO-213AA) and 1PMT4124 (DO-216), both with identical 43.0 V Zener voltage and JANS qualification - enabling drop-in replacement in SMT layouts without electrical redesign.
JANTX1N4124-1 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:
- ±5%
- 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)
JANTX1N4124-1 FAQ
1.How can I place an order for JANTX1N4124-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4124-1 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 JANTX1N4124-1 reliable?
The price and inventory of JANTX1N4124-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4124-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4124-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4124-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4124-1?
JANTX1N4124-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4124-1 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 JANTX1N4124-1?
For technical support, including JANTX1N4124-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4124-1 requirements.
6.How does Aetrix verify that JANTX1N4124-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4124-1 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 JANTX1N4124-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4124-1?
All JANTX1N4124-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4124-1, 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 JANTX1N4124-1 part is unused and in its original packaging.
Return procedure for JANTX1N4124-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4124-1 Tags
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