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Microchip Technology JAN1N4127D-1
- Part No.:
- JAN1N4127D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4127D-1.pdf
- Description:
- DIODE ZENER 56V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,154
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Product details
Overview
JAN1N4127D-1 from Microsemi is a 56 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JAN1N4127D-1 datasheet, JAN1N4127D-1 pinout, JAN1N4127D-1 application, or JAN1N4127D-1 equivalent, key selection factors include its 1% Zener voltage tolerance, 300 Ω dynamic impedance at 250 mA, 0.01 µA reverse leakage at 42.6 V, radiation-hardened construction, and hermetically sealed axial-leaded package for stable operation across -65 °C to +175 °C.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 56 V at 250 mA test current (IZT), exhibiting a temperature coefficient of +0.100 %/°C and low noise density of 1 µV/√Hz - optimized for low-drift reference circuits in harsh environments.
Its metallurgical bond construction ensures mechanical robustness and long-term stability under thermal cycling and radiation exposure, while the DO-35 glass package provides hermetic sealing and minimal parasitic capacitance (<2 pF typical at 56 V), supporting clean regulation in analog sensing and power monitoring systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 56 V ±1% at 250 mA - enables precise 56 V rail regulation with tight tolerance for mission-critical references. |
| Power Dissipation | 500 mW at 25 °C - supports stable regulation in compact, convection-cooled designs without forced airflow. |
| Dynamic Impedance ZZT | 300 Ω at 250 mA - maintains low output impedance for minimal voltage variation under load transients. |
| Reverse Leakage IR | 0.01 µA at 42.6 V - ensures negligible standby current in high-impedance bias networks. |
| Temp Coefficient αVZ | +0.100 %/°C - predictable positive drift allows accurate compensation in wide-temperature-range systems. |
| Noise Density ND | 1 µV/√Hz - ultra-low broadband noise suitable for precision analog front-ends and sensor excitation. |
| Junction Temp Range | -65 °C to +175 °C - certified for operation in extreme aerospace, downhole, and military environments. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; operated with banded end positive for Zener regulation. Hermetically sealed, tin-lead plated leads solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential point in shunt regulator configuration. |
| Cathode | Zener regulation node | Connected to input supply via current-limiting resistor; delivers regulated 56 V to load. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 qualification | JANS-level reliability verified for space-grade applications including radiation hardness per MicroNote 050. |
| Metallurgical bonding | Eliminates interfacial delamination risk under thermal shock and mechanical vibration in launch environments. |
| 1% Zener tolerance | Reduces need for post-calibration trimming in high-accuracy voltage references and ADC/DAC bias networks. |
| Ultra-low leakage | 0.01 µA max reverse current enables use in high-impedance feedback paths without gain error. |
| Hermetic glass seal | Prevents moisture ingress and parametric shift over decades in sealed enclosures or vacuum systems. |
Applications
| Avionics Power Reference | Satellite DC-DC Monitor |
|---|---|
Use Scenario: Providing stable 56 V reference for isolated DC-DC converter feedback in flight control power modules. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing precise output voltage setpoint in secondary-side optocoupled feedback loop. Use Value: 1% tolerance and +0.100 %/°C TC enable <±0.5% total error over -55 °C to +125 °C without external compensation. | Use Scenario: Biasing radiation-tolerant op-amps in satellite bus voltage telemetry circuitry. IC Role / Device Role / Timing Role: Low-noise, radiation-hardened Zener reference source for analog-to-digital conversion of 28 V bus voltage. Use Value: 1 µV/√Hz noise density and <2 pF capacitance prevent signal coupling and maintain SNR >86 dB in 16-bit telemetry channels. |
| Nuclear Instrumentation | Missile Guidance Sensor Bias |
Use Scenario: Supplying calibrated bias to Geiger-Müller tube preamplifiers in radiation detection payloads. IC Role / Device Role / Timing Role: High-stability shunt regulator delivering fixed 56 V anode voltage to gas-filled detectors. Use Value: JANS qualification and -65 °C to +175 °C operation ensure functional integrity during re-entry thermal transients. | Use Scenario: Generating stable reference for MEMS gyroscope conditioning circuits in inertial measurement units. IC Role / Device Role / Timing Role: Precision voltage reference for low-drift instrumentation amplifiers driving gyro bias currents. Use Value: 0.01 µA leakage and metallurgical bond construction prevent calibration drift during high-g acceleration profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4127US-1 | Same electrical specs but in surface-mount DO-213AA package; no axial leads. | Required for automated SMT assembly; unsuitable for through-hole prototyping or high-vibration mechanical retention. | Select when board space is constrained and reflow compatibility is mandatory. |
| JANTXV1N4127D | Identical Zener parameters and 1% tolerance; differs only in qualification level (JANTXV vs JANS) and screening rigor. | Approved for Class V (JANTXV) but not Class S (JANS) programs; lower radiation hardness margin and fewer environmental tests. | Select for cost-sensitive defense subsystems where full JANS is not mandated. |
Compared with JAN1N4127D-1, the 1N4127US-1 offers identical regulation performance in a smaller footprint but sacrifices mechanical robustness and hand-solderability, while JANTXV1N4127D reduces procurement cost and lead time at the expense of radiation hardness validation and extended temperature screening.
Availability
JAN1N4127D-1 is available at Aetrix Electronics and suitable for avionics power references, satellite telemetry monitors, and nuclear instrumentation requiring stable component supply with full traceability and long-term obsolescence management.
Supply support for JAN1N4127D-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, radiation-hardened, and aerospace-grade components.
The JAN1N4127D-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for voltage regulation in mission-critical defense, space, and nuclear systems where parametric stability and long-term reliability are non-negotiable.
FAQ
What is the Zener voltage tolerance of JAN1N4127D-1?
JAN1N4127D-1 has a Zener voltage tolerance of ±1%, denoted by the "D" suffix in its part number per Microsemi's nomenclature. This 56 V regulation point is guaranteed within ±0.56 V at 250 mA test current and 25 °C, enabling high-accuracy reference design without post-manufacturing calibration.
Is JAN1N4127D-1 qualified for space applications?
Yes, JAN1N4127D-1 is qualified to JANS level per MIL-PRF-19500/435, including radiation hardness characterization documented in Microsemi MicroNote 050. Its metallurgically bonded structure and hermetic DO-35 package meet requirements for low-Earth orbit and deep-space missions where single-event effects and total ionizing dose must be mitigated.
What is the maximum reverse leakage current for JAN1N4127D-1?
The maximum reverse leakage current (IR) for JAN1N4127D-1 is 0.01 µA at VR = 42.6 V, as specified in the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This ultra-low leakage supports use in high-impedance feedback networks and battery-powered systems where standby current must be minimized.
Does JAN1N4127D-1 have RoHS compliance?
No, JAN1N4127D-1 is not RoHS compliant. The "e3" RoHS suffix is only available on commercial-grade versions (e.g., 1N4127D-1e3); the JAN prefix indicates military-specification qualification with tin-lead plating required for solderability and reliability in high-reliability applications per MIL-STD-750.
What is the thermal resistance junction-to-ambient for JAN1N4127D-1?
The thermal resistance junction-to-ambient (RθJA) for JAN1N4127D-1 is 300 °C/W when mounted on an FR4 PCB with 4 mm² copper pads and 1 mm track width, as stated in the Maximum Ratings table. Derating begins linearly at 50 °C ambient, reducing power dissipation to zero at 175 °C.
JAN1N4127D-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:
- ±1%
- Power - Max:
- -
- 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)
JAN1N4127D-1 FAQ
1.How can I place an order for JAN1N4127D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4127D-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 JAN1N4127D-1 reliable?
The price and inventory of JAN1N4127D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4127D-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4127D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4127D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4127D-1?
JAN1N4127D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4127D-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 JAN1N4127D-1?
For technical support, including JAN1N4127D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4127D-1 requirements.
6.How does Aetrix verify that JAN1N4127D-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4127D-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 JAN1N4127D-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4127D-1?
All JAN1N4127D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4127D-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 JAN1N4127D-1 part is unused and in its original packaging.
Return procedure for JAN1N4127D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4127D-1 Tags
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