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Microchip Technology JANS1N4124D-1/TR
- Part No.:
- JANS1N4124D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4124D-1/TR.pdf
- Description:
- DIODE ZENER 43V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,983
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Product details
Overview
JANS1N4124D-1/TR from Microsemi is a 43.0 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications. It delivers stable voltage regulation with 250 mA test current, 250 Ω dynamic impedance, and 0.01 µA reverse leakage at 32.7 V.
For engineers reviewing the JANS1N4124D-1/TR datasheet, JANS1N4124D-1/TR pinout, JANS1N4124D-1/TR application, or JANS1N4124D-1/TR equivalent, key selection criteria include Zener voltage tolerance (1%), radiation hardness, hermetic glass packaging, MIL-qualified reliability level, and low noise density (≤1 µV/√Hz below 6.8 V).
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 thermal stability across -65 °C to +175 °C junction temperature range and supports operation under high-radiation environments per Microsemi MicroNote 050.
The JANS1N4124D-1/TR exhibits a positive temperature coefficient of +0.095 %/°C and maintains ≤0.01 µA reverse leakage at VR = 32.7 V, enabling stable reference performance in analog power supply feedback loops and precision bias networks where long-term drift and ESD immunity (MIL-STD-750 method 1020) are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 43.0 V at 250 mA - precise regulation point for mid-range voltage references |
| Tolerance | ±1% - tight tolerance enables high-accuracy feedback without external trimming |
| Power Rating | 500 mW - supports robust regulation under sustained load in space-constrained designs |
| Dynamic Impedance ZZT | 250 Ω - low impedance minimizes output voltage variation with current changes |
| Reverse Leakage IR | ≤0.01 µA at 32.7 V - ultra-low leakage preserves accuracy in high-impedance circuits |
| Temp Coefficient αVZ | +0.095 %/°C - predictable positive drift simplifies thermal compensation design |
| Noise Density | ≤1 µV/√Hz - minimal broadband noise suitable for low-noise reference applications |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction; cathode indicated by single black band; leads tin-lead plated and solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail in shunt regulator configuration |
| Cathode | Regulated output node | Banded end supplies stable 43.0 V when reverse-biased; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| JANS qualification | Fully qualified per MIL-PRF-19500/435 for flight-critical systems requiring highest reliability assurance |
| Metallurgical bond | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - no additional shielding required in TID environments |
| ESD immunity | Non-sensitive per MIL-STD-750 method 1020 - withstands handling without protection circuitry |
| Hermetic glass seal | Prevents moisture ingress and long-term parameter drift in harsh environmental conditions |
Applications
| Avionics Power Reference | Satellite DC-DC Converter Feedback |
|---|---|
Use Scenario: Providing stable 43.0 V reference for analog-to-digital converters and sensor signal conditioning in flight control computers. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precision bias for op-amps and ADC drivers. Use Value: ±1% tolerance and +0.095 %/°C TC enable <10 ppm/°C total drift over -55 °C to +125 °C operating range. | Use Scenario: Regulating error amplifier input in radiation-hardened isolated DC-DC converters aboard LEO satellites. IC Role / Device Role / Timing Role: Primary shunt reference in secondary-side feedback loop ensuring output voltage stability under TID exposure. Use Value: Inherent radiation hardness eliminates need for derating or shielding, reducing mass and BOM count. |
| Nuclear Instrumentation Bias | Military Radar Receiver LO Stage |
Use Scenario: Supplying calibrated bias voltage to photomultiplier tube (PMT) dynode chains in radiation detection equipment. IC Role / Device Role / Timing Role: High-stability Zener source delivering regulated voltage to successive dynode stages. Use Value: Ultra-low 0.01 µA leakage prevents current starvation in high-impedance PMT bias networks. | Use Scenario: Generating local oscillator tuning voltage reference in wideband phased-array radar front-ends. IC Role / Device Role / Timing Role: Low-noise voltage reference for varactor diode bias in VCO tuning circuits. Use Value: ≤1 µV/√Hz noise density prevents phase noise degradation in RF synthesizers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4124D-1 | Same electrical specs but qualified to JANTXV level (lower reliability screening than JANS) | Approved for non-flight hardware and ground support equipment only | Select when full JANS screening is not mandated and cost reduction is prioritized |
| 1N4124D-1/TR | Commercial-grade version; RoHS-compliant plating; no MIL-qualification | Limited to benign-environment industrial use; not rated for radiation or extreme thermal cycling | Choose for prototyping or commercial systems where MIL-spec is unnecessary |
Compared with JANTXV1N4124D-1 and 1N4124D-1/TR, the JANS1N4124D-1/TR provides verified radiation hardness, extended temperature operation (-65 °C to +175 °C), and full JANS-level screening-making it the sole option for flight-qualified avionics and space-rated power management where failure is not acceptable.
Availability
JANS1N4124D-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite DC-DC converter feedback, and nuclear instrumentation bias requiring stable component supply across extended temperature and radiation environments.
Supply support for JANS1N4124D-1/TR 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 aerospace-grade components.
The JANS1N4124D-1/TR belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, designed specifically for mission-critical voltage regulation in defense, space, and nuclear systems where parametric stability under stress is non-negotiable.
FAQ
What is the Zener voltage and tolerance of JANS1N4124D-1/TR?
JANS1N4124D-1/TR has a nominal Zener voltage of 43.0 V at 250 mA test current with ±1% tolerance. This tight tolerance is achieved through post-trim screening and is guaranteed across the full -65 °C to +175 °C junction temperature range, making JANS1N4124D-1/TR suitable for precision reference applications in high-reliability systems.
Is JANS1N4124D-1/TR radiation hardened?
Yes, JANS1N4124D-1/TR is inherently radiation hard per Microsemi MicroNote 050 due to its metallurgically bonded glass construction and process design. It is qualified to JANS level per MIL-PRF-19500/435 and has been validated for use in TID environments typical of low-earth orbit and nuclear instrumentation without derating or shielding-key for JANS1N4124D-1/TR deployment in spaceflight hardware.
What does the "D" suffix mean in JANS1N4124D-1/TR?
The "D" suffix in JANS1N4124D-1/TR indicates ±1% Zener voltage tolerance per the Microsemi part nomenclature guide. It is distinct from "C" (±2%) and blank (±5%). This designation applies exclusively to the JANS1N4124D-1/TR variant and is verified during MIL-PRF-19500/435 screening-ensuring JANS1N4124D-1/TR meets stringent accuracy requirements for flight-critical references.
What package type and lead finish does JANS1N4124D-1/TR use?
JANS1N4124D-1/TR uses the DO-35 (DO-204AH) axial-leaded glass package with hermetic sealing. Leads are tin-lead plated and solderable per MIL-STD-750 method 2026. The "TR" suffix denotes tape-and-reel packaging per EIA-296, enabling automated placement in high-reliability assembly lines-standard for JANS1N4124D-1/TR delivery at Aetrix Electronics.
How does JANS1N4124D-1/TR compare to commercial 1N4124 variants?
JANS1N4124D-1/TR differs from commercial 1N4124 variants in three critical ways: it is fully JANS-qualified per MIL-PRF-19500/435, features metallurgical bonding for enhanced thermal/mechanical reliability, and is screened for radiation hardness and extended temperature operation. Commercial versions lack these qualifications and are unsuitable for aerospace or defense applications where JANS1N4124D-1/TR is specified.
JANS1N4124D-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- 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 (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4124D-1/TR FAQ
1.How can I place an order for JANS1N4124D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4124D-1/TR 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 JANS1N4124D-1/TR reliable?
The price and inventory of JANS1N4124D-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4124D-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4124D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4124D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4124D-1/TR?
JANS1N4124D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4124D-1/TR 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 JANS1N4124D-1/TR?
For technical support, including JANS1N4124D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4124D-1/TR requirements.
6.How does Aetrix verify that JANS1N4124D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4124D-1/TR 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 JANS1N4124D-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4124D-1/TR?
All JANS1N4124D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4124D-1/TR, 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 JANS1N4124D-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4124D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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