Microchip Technology JAN1N4124C-1
- Part No.:
- JAN1N4124C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4124C-1.pdf
- Description:
- DIODE ZENER 43V DO204AH
- Quantity:
- Payment:

- Shipping:

Inventory:3,483
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Product details
Overview
JAN1N4124C-1 from Microsemi is a 500 mW, 43 V, ±2% tolerance metallurgically bonded glass Zener diode in DO-35 package, qualified to JAN level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JAN1N4124C-1 datasheet, JAN1N4124C-1 pinout, JAN1N4124C-1 application, or JAN1N4124C-1 equivalent, this page delivers verified Zener voltage, temperature coefficient, dynamic impedance, noise density, and military qualification details critical for precision analog reference and overvoltage protection design.
Technical Context
This Zener diode operates in reverse breakdown with a nominal 43 V regulation at 250 mA test current (IZT), exhibiting a +0.095 %/°C temperature coefficient and 250 Ω dynamic impedance (ZZT) at IZT. Its metallurgical bond ensures stable long-term voltage drift under thermal cycling.
Designed for hermetic axial-leaded mounting, it delivers low noise density (1 µV/√Hz typical at lower voltages) and minimal capacitance (<1.5 pF), making it suitable for low-noise reference circuits where stability across -65 °C to +175 °C junction temperature is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 43.0 V ±2% at 250 mA - precise regulation point for mid-range voltage references |
| Power Dissipation | 500 mW at 25 °C - supports stable operation up to 175 °C with linear derating |
| Dynamic Impedance ZZT | 250 Ω at 250 mA - low AC impedance ensures minimal output voltage variation under load transients |
| Temperature Coefficient αVZ | +0.095 %/°C - predictable positive drift enables accurate thermal compensation in reference designs |
| Noise Density ND | 1 µV/√Hz (typical at lower voltages) - ultra-low broadband noise for precision analog circuitry |
| Reverse Leakage IR | ≤0.01 µA at 32.7 V - negligible current loss in high-impedance bias networks |
| Junction Temp Range | -65 °C to +175 °C - validated for extreme-environment operation in avionics and space-grade systems |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; banded end is positive during Zener regulation. Hermetically sealed, tin-lead plated leads solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground-reference terminal | Connected to system ground or lowest potential node in shunt regulator configuration |
| Cathode | Zener regulation output | Banded end - carries regulated 43 V when reverse-biased; must be held at higher potential than anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Validated reliability for flight-critical systems with full lot traceability and screening |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and vibration stress |
| Low noise density | 1 µV/√Hz typical enables use in high-resolution ADC references and sensor excitation circuits |
| Hermetic glass encapsulation | Prevents moisture ingress and parameter shift over decades of field operation |
| ±2% Zener tolerance (C suffix) | Reduces need for post-production trimming in precision voltage reference modules |
Applications
| Avionics Power Reference | Satellite DC-DC Converter Feedback |
|---|---|
Use Scenario: Providing stable 43 V reference for analog-to-digital converters in inertial measurement units. IC Role / Device Role / Timing Role: Shunt Zener reference diode establishing precision voltage threshold for signal conditioning circuitry. Use Value: ±2% tolerance and +0.095 %/°C TC enable calibrated accuracy over -55 °C to +125 °C operating range without active compensation. | Use Scenario: Regulating feedback node in radiation-hardened isolated DC-DC converters aboard LEO satellites. IC Role / Device Role / Timing Role: Primary voltage reference element in optocoupler-isolated feedback loop. Use Value: Inherent radiation hardness and hermetic DO-35 package ensure parametric stability after 100 krad(Si) TID exposure. |
| Missile Guidance Bias Network | Ground-Based Radar Receiver Reference |
Use Scenario: Generating stable bias for RF front-end LNAs and mixers in tactical missile seeker electronics. IC Role / Device Role / Timing Role: Low-noise Zener source supplying clean 43 V to analog signal chain components. Use Value: 1 µV/√Hz noise density prevents degradation of receiver noise figure in wideband radar applications. | Use Scenario: Serving as primary reference in high-stability local oscillator synthesizers for phased-array radar receivers. IC Role / Device Role / Timing Role: Precision voltage reference for PLL charge-pump supply and DAC reference rails. Use Value: -65 °C to +175 °C junction rating and MIL-qualified screening support continuous operation in desert and arctic environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4124C-1 | Higher screening level (JANTXV vs JAN); tighter parametric limits on IR and ZZT | Required for programs specifying JANTXV-level burn-in and life testing | Select when extended reliability testing beyond JAN is mandated by system specification |
| 1N4124C-1 (commercial) | No MIL-PRF-19500 qualification; RoHS-compliant plating only; no lot traceability | Suitable for non-military industrial prototypes or cost-sensitive test fixtures | Select only for non-flight hardware where military screening is not required |
Compared with JANTXV1N4124C-1 and 1N4124C-1, the JAN1N4124C-1 provides the optimal balance of proven military reliability, full JAN-level screening, and availability for production avionics programs without the extended lead time or cost premium of JANTXV.
Availability
JAN1N4124C-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite DC-DC converter feedback, and missile guidance bias network applications requiring stable component supply across extended temperature and radiation environments.
Supply support for JAN1N4124C-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 JAN1N4124C-1 belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, engineered specifically for precision voltage regulation in mission-critical systems where long-term stability and environmental resilience are mandatory.
FAQ
What is the Zener voltage tolerance of JAN1N4124C-1?
The "C" suffix in JAN1N4124C-1 denotes a ±2% Zener voltage tolerance at 250 mA test current. This tighter tolerance compared to standard 5% (blank suffix) versions reduces calibration effort in precision reference designs and improves initial accuracy without trimming.
Is JAN1N4124C-1 qualified to MIL-PRF-19500/435?
Yes, JAN1N4124C-1 is fully qualified to MIL-PRF-19500/435 at the JAN reliability level, including screening for temperature cycling, mechanical shock, vibration, and steady-state life testing per the specification. Full test data and lot traceability are available upon request.
What is the maximum Zener current IZM for JAN1N4124C-1?
The maximum Zener current IZM for JAN1N4124C-1 is 32.7 mA at 25 °C ambient, calculated from its 500 mW power rating and 43 V nominal Zener voltage. Derating applies above 50 °C lead temperature, reaching zero dissipation at 175 °C.
Does JAN1N4124C-1 have low noise performance?
Yes, JAN1N4124C-1 exhibits ultra-low noise density - typically 1 µV/√Hz at lower Zener voltages and falling further with decreasing voltage. While exact value at 43 V is not tabulated, its metallurgical bond and glass package ensure minimal excess noise versus diffused-junction alternatives.
What package type does JAN1N4124C-1 use?
JAN1N4124C-1 uses the DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with tin-lead plated leads. Cathode polarity is marked by a band; the banded end must be held at higher potential than the anode for proper Zener regulation.
JAN1N4124C-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:
- -
- 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)
JAN1N4124C-1 FAQ
1.How can I place an order for JAN1N4124C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4124C-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 JAN1N4124C-1 reliable?
The price and inventory of JAN1N4124C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4124C-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4124C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4124C-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4124C-1?
JAN1N4124C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4124C-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 JAN1N4124C-1?
For technical support, including JAN1N4124C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4124C-1 requirements.
6.How does Aetrix verify that JAN1N4124C-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4124C-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 JAN1N4124C-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4124C-1?
All JAN1N4124C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4124C-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 JAN1N4124C-1 part is unused and in its original packaging.
Return procedure for JAN1N4124C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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