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Microchip Technology JANTX1N4124D-1
- Part No.:
- JANTX1N4124D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4124D-1.pdf
- Description:
- DIODE ZENER 43V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,134
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Product details
Overview
JANTX1N4124D-1 from Microsemi is a 500 mW, 43 V, 1% tolerance metallurgically bonded glass Zener diode in DO-35 package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability voltage regulation in aerospace and defense power supplies, reference circuits, and overvoltage protection.
For engineers reviewing the JANTX1N4124D-1 datasheet, JANTX1N4124D-1 pinout, JANTX1N4124D-1 application, or JANTX1N4124D-1 equivalent, key selection criteria include Zener voltage tolerance (±1%), dynamic impedance (250 Ω @ 250 mA), noise density (1 µV/√Hz), temperature coefficient (+0.095 %/°C), and military-grade reliability qualification.
Technical Context
This device operates as a precision shunt voltage regulator in reverse-biased breakdown mode, with cathode band marking polarity. Its metallurgical bond construction ensures stable junction characteristics under thermal cycling and radiation exposure.
It delivers 43 V regulation at 250 mA test current (IZT), exhibits low noise density (1 µV/√Hz), and maintains ±1% initial voltage tolerance - critical for analog references and feedback networks where drift and noise directly impact system accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 43.0 V ±1% @ 250 mA - defines precise regulation point for feedback loops and reference generation |
| Power Dissipation | 500 mW @ TC = 25 °C - sets maximum continuous thermal load on PCB layout |
| Dynamic Impedance ZZT | 250 Ω @ 250 mA - determines output impedance and regulation sensitivity to load current changes |
| Noise Density ND | 1 µV/√Hz @ IZT - enables low-noise analog references in precision instrumentation |
| Temp Coefficient αVZ | +0.095 %/°C - quantifies voltage drift over temperature; used in thermal compensation design |
| Max Reverse Current IR | 10 nA @ 34.4 V - ensures minimal leakage in high-impedance bias networks |
| Junction Temp Range | –65 °C to +175 °C - supports operation in extreme environmental conditions |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package; cathode identified by single black band; leads tin-lead plated per MIL-STD-750.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground-reference terminal in shunt regulator configuration | Connected to circuit common; establishes reference node for Zener voltage drop |
| Cathode | Regulated output terminal (banded end) | Provides stable 43 V relative to anode; must be biased positive w.r.t. anode for regulation |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Guarantees screening, testing, and traceability for aerospace and defense applications |
| Metallurgical bond construction | Ensures mechanical stability and long-term parameter consistency under thermal stress |
| 1% Zener voltage tolerance | Reduces need for external trimming in precision reference designs |
| Low noise density (1 µV/√Hz) | Supports high-resolution ADC references and low-drift op-amp biasing |
| Radiation hardness | Inherently resistant to total ionizing dose (TID), per Microsemi MicroNote 050 |
Applications
| Aerospace Power Supply Reference | Defense System Overvoltage Clamp |
|---|---|
Use Scenario: Stable 43 V reference in DC-DC converter feedback loop of satellite power management unit. IC Role / Device Role / Timing Role: Shunt voltage reference providing error signal to PWM controller. Use Value: ±1% tolerance and +0.095 %/°C tempco enable <±2% output regulation across –55 °C to +125 °C operating range. | Use Scenario: Transient voltage suppression on 36 V avionics bus during load dump events. IC Role / Device Role / Timing Role: Precision clamping element limiting bus voltage to 43 V ±1%. Use Value: 500 mW rating and 250 Ω dynamic impedance ensure fast response and minimal overshoot during 100 ms surges. |
| High-Reliability Instrumentation Reference | Nuclear Monitoring Sensor Bias |
Use Scenario: Low-noise voltage reference for 24-bit precision data acquisition front-end. IC Role / Device Role / Timing Role: Primary analog reference source for ADC and DAC calibration. Use Value: 1 µV/√Hz noise density prevents degradation of effective number of bits (ENOB) in sensitive measurement paths. | Use Scenario: Stable bias supply for radiation-hardened Geiger-Müller tube amplifier stage. IC Role / Device Role / Timing Role: Regulated high-voltage bias generator (43 V) for detector anode. Use Value: Inherent radiation hardness and –65 °C to +175 °C junction range support operation in reactor containment environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANS1N4124D-1 | Same electrical specs; qualified to JANS (highest reliability level) with full lot traceability and extended screening | Required for Class K spaceflight programs; higher cost and longer lead time | Select when mission-critical radiation tolerance and full MIL-STD-883 testing are mandated |
| 1N4124UR-1 | Same 43 V/1% spec in DO-213AA surface-mount package; no military qualification | Suitable for commercial industrial controls; lacks JANTX screening and radiation hardening | Select for cost-sensitive, non-military PCBs requiring SMT assembly and RoHS compliance |
Compared with JANS1N4124D-1, the JANTX1N4124D-1 offers reduced screening depth but identical electrical performance and DO-35 form factor; compared with 1N4124UR-1, it provides military qualification and axial-leaded through-hole mounting at the expense of SMT compatibility.
Availability
JANTX1N4124D-1 is available at Aetrix Electronics and suitable for aerospace power supplies, defense system clamping, and high-reliability instrumentation requiring stable component supply with full MIL-PRF-19500 traceability and long-term obsolescence management.
Supply support for JANTX1N4124D-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 ICs, RF solutions, and discrete components for aerospace, defense, and industrial markets.
The JANTX1N4124D-1 belongs to Microsemi's legacy 1N4099–1N4135 family of metallurgically bonded Zener diodes, designed specifically for precision voltage regulation in harsh-environment systems where stability, low noise, and radiation tolerance are mandatory.
FAQ
What is the Zener voltage tolerance of JANTX1N4124D-1?
JANTX1N4124D-1 has a nominal Zener voltage of 43.0 V with ±1% tolerance, as indicated by the "D" suffix in its part number per Microsemi's nomenclature. This tight tolerance is verified during MIL-PRF-19500/435 JANTX-level screening and supports precision regulation without post-manufacture trimming in critical analog circuits.
Is JANTX1N4124D-1 suitable for high-temperature operation?
Yes, JANTX1N4124D-1 is rated for junction temperatures from –65 °C to +175 °C and features linear power derating from 500 mW at 25 °C to zero at 175 °C. Its metallurgical bond construction and glass DO-35 package ensure reliable operation in extended-temperature aerospace and downhole industrial environments.
Does JANTX1N4124D-1 meet RoHS requirements?
No - JANTX1N4124D-1 is not RoHS compliant. Per Microsemi documentation, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade parts (blank reliability level), not for JANTX-qualified devices. The JANTX1N4124D-1 uses traditional tin-lead plating per MIL-STD-750.
What is the dynamic impedance of JANTX1N4124D-1 and why does it matter?
JANTX1N4124D-1 has a maximum dynamic impedance (ZZT) of 250 Ω at 250 mA test current. This value directly impacts regulation accuracy under varying load conditions: lower ZZT means less output voltage deviation when load current changes, making it essential for stable feedback networks in regulated power supplies.
How is polarity marked on JANTX1N4124D-1?
JANTX1N4124D-1 uses a single black band on the glass body to mark the cathode terminal. For proper Zener regulation, the banded (cathode) end must be held positive relative to the anode. This polarity marking is consistent across all DO-35-packaged devices in the 1N4099–1N4135 series and is verified per MIL-STD-750 method 2026.
JANTX1N4124D-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:
- ±1%
- 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)
JANTX1N4124D-1 FAQ
1.How can I place an order for JANTX1N4124D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4124D-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 JANTX1N4124D-1 reliable?
The price and inventory of JANTX1N4124D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4124D-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4124D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4124D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4124D-1?
JANTX1N4124D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4124D-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 JANTX1N4124D-1?
For technical support, including JANTX1N4124D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4124D-1 requirements.
6.How does Aetrix verify that JANTX1N4124D-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4124D-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 JANTX1N4124D-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4124D-1?
All JANTX1N4124D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4124D-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 JANTX1N4124D-1 part is unused and in its original packaging.
Return procedure for JANTX1N4124D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4124D-1 Tags
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