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Microchip Technology JANTX1N4127C-1
- Part No.:
- JANTX1N4127C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4127C-1.pdf
- Description:
- DIODE ZENER 56V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,611
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Product details
Overview
JANTX1N4127C-1 from Microsemi is a 500 mW, 56 V, ±2% tolerance metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability voltage regulation in aerospace power supplies and precision reference circuits.
For engineers reviewing the JANTX1N4127C-1 datasheet, JANTX1N4127C-1 pinout, JANTX1N4127C-1 application, or JANTX1N4127C-1 equivalent, key selection factors include its 56 V nominal Zener voltage at 250 mA test current, 300 Ω maximum dynamic impedance, 0.01 µA maximum reverse leakage at 42.6 V, ±2% voltage tolerance, and -65 °C to +175 °C operating temperature range.
Technical Context
This device operates as a two-terminal voltage reference in reverse-biased breakdown mode, with Zener voltage specified at IZT = 250 mA and characterized by αVZ = +0.100 %/°C temperature coefficient. Its metallurgical bond construction ensures stable regulation under thermal cycling and radiation exposure.
It exhibits low noise density (1 µV/√Hz typical at lower voltages), minimal capacitance (~2.5 pF at 56 V), and inherent radiation hardness per Microsemi MicroNote 050 - critical for space-grade analog signal conditioning and voltage monitoring in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 56 V at 250 mA test current - defines precise regulation point for mid-range high-voltage references. |
| Zener Tolerance | ±2% (C grade) - enables tighter output voltage control than standard ±5% parts in feedback loops. |
| Max Dynamic Impedance | 300 Ω at 250 mA - limits regulation error under load current variation in precision shunt regulators. |
| Max Reverse Leakage | 0.01 µA at 42.6 V - ensures negligible standby current in battery-backed or low-power bias networks. |
| Power Dissipation | 500 mW at 25 °C, derated linearly to zero at 175 °C - supports operation in conduction-cooled avionics enclosures. |
| Operating Temperature | -65 °C to +175 °C - validated for extended-range military and space applications without derating penalties. |
| Thermal Resistance | 250 °C/W junction-to-lead (3/8″ lead length) - enables direct thermal path to chassis ground in through-hole mounting. |
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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-bias reference return node | Connected to system ground or lowest potential point in shunt regulator topology. |
| Cathode | Zener voltage output terminal | Provides stable 56 V reference when reverse-biased; marked by color band on glass body. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for defense electronics with full lot traceability and screening per military standards. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock, ensuring long-term Zener voltage stability. |
| Low noise density (1 µV/√Hz) | Minimizes added noise in precision analog references used in ADC biasing and sensor excitation circuits. |
| Radiation-hardened design | Meets total ionizing dose (TID) requirements for low-earth orbit missions without additional shielding. |
| Hermetic glass sealing | Prevents moisture ingress and parameter drift over decades in sealed avionics modules. |
Applications
| Avionics Power Monitoring | Satellite Voltage Reference |
|---|---|
Use Scenario: Monitoring 28 V DC bus voltage in aircraft flight control systems using a resistive divider into an ADC input. IC Role / Device Role / Timing Role: Zener reference providing stable 56 V scaling point for high-side sensing circuitry. Use Value: Enables accurate bus voltage measurement across -55 °C to +125 °C ambient with <±0.5% total error including tempco. | Use Scenario: Generating a stable bias voltage for radiation-tolerant op-amps in satellite telemetry front-ends. IC Role / Device Role / Timing Role: Shunt regulator establishing clean 56 V rail for analog signal conditioning stages. Use Value: Delivers <1 µV/√Hz noise floor and zero parameter shift after 100 krad(Si) TID exposure. |
| Missile Guidance Reference | Ground-Based Radar Bias |
Use Scenario: Providing reference voltage for analog-to-digital conversion of inertial sensor outputs in tactical missiles. IC Role / Device Role / Timing Role: Precision Zener element in temperature-compensated voltage reference subcircuit. Use Value: Maintains ±2% regulation accuracy across rapid thermal transients from -65 °C to +175 °C during launch. | Use Scenario: Biasing high-voltage RF amplifier stages in S-band radar transmitters requiring stable supply rails. IC Role / Device Role / Timing Role: High-reliability shunt regulator for 56 V intermediate supply generation. Use Value: Supports continuous 500 mW dissipation at 70 °C ambient with no derating, enabling compact heatsinkless design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANS1N4127C-1 | Qualified to JANS level (higher screening, wider temp range, full radiation testing) | Required for Class S spaceflight hardware; not needed for ground-based or airborne JANTX-tier systems | Select JANS1N4127C-1 only when full MIL-PRF-19500/435 JANS compliance is mandated. |
| 1N4127C-1 (commercial) | No military qualification; RoHS-compliant plating; 0 °C to +70 °C operating range | Suitable for lab prototypes or non-critical industrial equipment where cost and lead time dominate | Choose 1N4127C-1 for commercial-grade designs lacking environmental or reliability requirements. |
Compared with JANTX1N4127C-1, the JANS variant adds radiation hardness validation and extended screening but increases cost and lead time, while the commercial 1N4127C-1 sacrifices military reliability for affordability and availability in non-harsh environments.
Availability
JANTX1N4127C-1 is available at Aetrix Electronics and suitable for avionics power monitoring, satellite voltage reference, and missile guidance reference requiring stable component supply with full MIL-PRF-19500/435 traceability and long-term obsolescence management.
Supply support for JANTX1N4127C-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 JANTX1N4127C-1 belongs to Microsemi's legacy 1N4099–1N4135 series of mil-qualified Zener diodes, designed specifically for precision voltage regulation in mission-critical systems where parameter stability under extreme temperature, radiation, and vibration is mandatory.
FAQ
What is the Zener voltage tolerance of JANTX1N4127C-1?
JANTX1N4127C-1 has a ±2% Zener voltage tolerance, denoted by the "C" suffix in its part number. This means its nominal 56 V Zener voltage is guaranteed between 54.88 V and 57.12 V at 250 mA test current and 25 °C, tighter than the standard ±5% tolerance of non-suffixed variants.
Is JANTX1N4127C-1 suitable for space applications?
JANTX1N4127C-1 is qualified to MIL-PRF-19500/435 JANTX level and exhibits inherent radiation hardness per Microsemi MicroNote 050, making it appropriate for many space-qualified subsystems. However, for Class S flight hardware, the fully screened JANS1N4127C-1 is required - JANTX1N4127C-1 does not include full radiation testing documentation.
What is the maximum reverse leakage current for JANTX1N4127C-1?
The maximum reverse leakage current for JANTX1N4127C-1 is 0.01 µA at VR = 42.6 V, as specified in the Electrical Characteristics table on page 3 of the T4-LDS-0245-2 datasheet. This ultra-low leakage supports use in high-impedance bias networks and battery-powered monitoring circuits.
Does JANTX1N4127C-1 have a defined temperature coefficient?
Yes, JANTX1N4127C-1 has a temperature coefficient of +0.100 %/°C, meaning its Zener voltage increases by approximately 56 mV per degree Celsius rise in junction temperature. This positive tempco is typical for Zeners above 5.6 V and must be compensated in high-accuracy reference designs.
What package type is used for JANTX1N4127C-1?
JANTX1N4127C-1 uses the DO-35 (also designated DO-204AH) hermetically sealed axial-leaded glass package. The cathode is marked by a visible band on the glass body, and the device is intended for through-hole mounting with 3/8″ lead length for thermal performance per datasheet RθJL specification.
JANTX1N4127C-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):
- 56 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 300 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 42.6 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)
JANTX1N4127C-1 FAQ
1.How can I place an order for JANTX1N4127C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4127C-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 JANTX1N4127C-1 reliable?
The price and inventory of JANTX1N4127C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4127C-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4127C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4127C-1 transactions.
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4.How is shipping managed for JANTX1N4127C-1?
JANTX1N4127C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4127C-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 JANTX1N4127C-1?
For technical support, including JANTX1N4127C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4127C-1 requirements.
6.How does Aetrix verify that JANTX1N4127C-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4127C-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 JANTX1N4127C-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4127C-1?
All JANTX1N4127C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4127C-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 JANTX1N4127C-1 part is unused and in its original packaging.
Return procedure for JANTX1N4127C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4127C-1 Tags
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Diodes Incorporated
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