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Microchip Technology JANTX1N4124-1/TR
- Part No.:
- JANTX1N4124-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4124-1/TR.pdf
- Description:
- DIODE ZENER 43V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,706
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Product details
Overview
JANTX1N4124-1/TR from Microsemi is a 500 mW, 43.0 V ±5% metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability applications. It delivers stable voltage regulation at 250 mA test current with 250 Ω dynamic impedance, <0.01 µA reverse leakage at 32.7 V, and +0.095 %/°C temperature coefficient.
For engineers reviewing the JANTX1N4124-1/TR datasheet, JANTX1N4124-1/TR pinout, JANTX1N4124-1/TR application, or JANTX1N4124-1/TR equivalent, this page provides verified military-grade Zener specifications, thermal derating behavior, noise density (≤1 µV/√Hz), and direct alternatives for precision reference and power supply regulation in aerospace, defense, and industrial control systems.
Technical Context
This device operates as a two-terminal voltage reference in reverse-biased breakdown mode, with Zener voltage defined at IZT = 250 mA and characterized over -65 °C to +175 °C junction temperature range. Its metallurgical bond construction ensures low noise density and radiation hardness per Microsemi MicroNote 050.
The JANTX1N4124-1/TR exhibits a positive temperature coefficient (+0.095 %/°C), requiring thermal compensation in high-stability references. Its 250 Ω dynamic impedance at 250 mA and ≤0.01 µA IR at VR = 32.7 V support tight regulation under varying load and line conditions in regulated DC supplies and overvoltage protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 43.0 V ±5% at IZT = 250 mA - defines nominal regulation point with predictable deviation across temperature and current. |
| Power Dissipation PM(AV) | 500 mW at TC = 25 °C - supports continuous operation up to 250 mA at 43 V before thermal derating begins at 50 °C. |
| Dynamic Impedance ZZT | 250 Ω at IZT = 250 mA - determines output voltage variation under load transients; lower values improve regulation accuracy. |
| Reverse Leakage IR | ≤0.01 µA at VR = 32.7 V - ensures minimal parasitic current in high-impedance bias networks and precision references. |
| Temperature Coefficient αVZ | +0.095 %/°C - quantifies voltage drift with ambient change; critical for stability in unregulated thermal environments. |
| Noise Density ND | ≤1 µV/√Hz - enables use in low-noise analog references where broadband voltage noise must be minimized. |
| Junction Temperature Range | -65 °C to +175 °C - validated for extended operation in harsh environments including space and avionics. |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode indicated by band; operated with banded end positive for Zener regulation. Weight ≈ 0.2 g; lead length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential; forms return path for Zener current. |
| Cathode | Regulated output node | Banded end; supplies stable 43 V reference when reverse-biased; must be held at higher potential than anode. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for aerospace and defense programs requiring traceable lot data and screening per military standards. |
| Metallurgical bond construction | Enables radiation hardness and low long-term parameter drift, supporting mission-critical lifetime requirements. |
| Low noise density (≤1 µV/√Hz) | Minimizes voltage perturbation in precision analog signal chains, such as ADC reference buffers and sensor excitation. |
| Hermetic glass DO-35 package | Provides moisture and contaminant immunity essential for high-reliability field deployments over decades. |
| Non-ESD-sensitive per MIL-STD-750 Method 1020 | Eliminates need for ESD handling protocols during assembly, reducing manufacturing risk in cleanroom and production lines. |
Applications
| Avionics Power Monitoring | Satellite Bus Voltage Reference |
|---|---|
|
Use Scenario: Monitoring 28 V DC bus voltage in flight control computers using resistive divider into ADC input. IC Role / Device Role / Timing Role: Precision Zener reference providing stable 43 V scaling point for ratio-metric measurement. Use Value: Enables ±0.5% bus voltage accuracy over -55 °C to +125 °C due to known +0.095 %/°C TC and low IR drift. |
Use Scenario: Generating stable bias for radiation-tolerant op-amps in satellite telemetry conditioning circuits. IC Role / Device Role / Timing Role: Low-noise, radiation-hardened voltage reference replacing less robust commercial Zeners. Use Value: Delivers ≤1 µV/√Hz noise and inherent TID tolerance per MicroNote 050, preserving signal integrity in LEO orbit. |
| Ground-Based Radar Bias Supply | Military Radio Transceiver Protection |
|
Use Scenario: Providing regulated bias to GaN PA driver stages in S-band radar front-ends operating at 125 °C ambient. IC Role / Device Role / Timing Role: High-temperature Zener regulator maintaining 43 V reference despite thermal cycling. Use Value: Sustains regulation up to +175 °C junction temperature with linear derating from 500 mW at 50 °C, ensuring uptime. |
Use Scenario: Clamping transient overvoltage on RF power amplifier supply rails during lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response Zener clamp absorbing energy while limiting rail excursion to 43 V. Use Value: With 250 Ω dynamic impedance and 500 mW rating, it limits peak overvoltage within 100 ns without latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4124US | Same 43 V nominal Zener, but in surface-mount DO-213AA package; no axial leads; RoHS-compliant only. | Used where board space is constrained and reflow soldering is required; unsuitable for through-hole prototyping or manual repair. | Select 1N4124US when migrating to SMT assembly and full RoHS compliance is mandatory; verify thermal pad layout matches RθJL = 250 °C/W. |
| JANTXV1N4124-1 | Identical electrical specs but qualified to JANTXV level (enhanced screening, tighter parametric limits, 100% life test). | Required for Class H/V avionics programs demanding zero infant mortality and extended burn-in validation. | Choose JANTXV1N4124-1 when program spec mandates JANTXV screening; expect longer lead times and higher unit cost. |
Compared with JANTX1N4124-1/TR, the 1N4124US offers SMT compatibility at the expense of axial mounting flexibility, while JANTXV1N4124-1 adds screening rigor without altering regulation performance-making the TR-suffixed version optimal for cost-sensitive JANTX-tier programs with standard leaded assembly.
Availability
JANTX1N4124-1/TR is available at Aetrix Electronics and suitable for avionics power monitoring, satellite bus voltage reference, and ground-based radar bias supply requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for JANTX1N4124-1/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 analog and mixed-signal components for aerospace, defense, and industrial markets.
The JANTX1N4124-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for precision voltage regulation in mission-critical systems where radiation tolerance, thermal stability, and long-term parameter consistency are non-negotiable.
FAQ
What is the Zener voltage tolerance for JANTX1N4124-1/TR?
The JANTX1N4124-1/TR has a nominal Zener voltage of 43.0 V with a standard tolerance of ±5%, as defined in the JEDEC-registered electrical characteristics table. This tolerance applies at IZT = 250 mA and 25 °C ambient, and remains valid across the full qualified temperature range when used within its derated power envelope.
Is JANTX1N4124-1/TR RoHS compliant?
No, JANTX1N4124-1/TR is not RoHS compliant. The "e3" RoHS suffix is only available on commercial-grade versions (e.g., 1N4124-1e3); military-qualified parts like JANTX1N4124-1/TR retain tin-lead plating per MIL-STD-750 Method 2026 to ensure solderability and reliability under thermal cycling stress.
What is the maximum reverse leakage current for JANTX1N4124-1/TR?
The maximum reverse leakage current (IR) for JANTX1N4124-1/TR is 0.01 µA measured at VR = 32.7 V (75% of VZ). This ultra-low leakage supports high-impedance bias networks and minimizes error in precision reference divider configurations.
How does thermal derating apply to JANTX1N4124-1/TR?
JANTX1N4124-1/TR linearly derates from 500 mW starting at TL = 50 °C, reaching zero dissipation at 175 °C. On a typical FR4 board, derating begins at 25 °C ambient, dropping 6.25 mW/°C above that point. Full power is usable only below 50 °C lead temperature.
Can JANTX1N4124-1/TR be used in surface-mount designs?
No-JANTX1N4124-1/TR uses the axial-leaded DO-35 (DO-204AH) package and is not compatible with SMT assembly. For surface-mount equivalents, consider the 1N4124US in DO-213AA package, which shares identical Zener voltage and regulation specs but requires reflow-compatible layout and RoHS-compliant processes.
JANTX1N4124-1/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:
- ±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/TR FAQ
1.How can I place an order for JANTX1N4124-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4124-1/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 JANTX1N4124-1/TR reliable?
The price and inventory of JANTX1N4124-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4124-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4124-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4124-1/TR transactions.
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4.How is shipping managed for JANTX1N4124-1/TR?
JANTX1N4124-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4124-1/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 JANTX1N4124-1/TR?
For technical support, including JANTX1N4124-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4124-1/TR requirements.
6.How does Aetrix verify that JANTX1N4124-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4124-1/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 JANTX1N4124-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4124-1/TR?
All JANTX1N4124-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4124-1/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 JANTX1N4124-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N4124-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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