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Microchip Technology JAN1N4127-1
- Part No.:
- JAN1N4127-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4127-1.pdf
- Description:
- DIODE ZENER 56V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,230
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Product details
Overview
JAN1N4127-1 from Microsemi is a 500 mW, 56 V, ±5% 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 JAN1N4127-1 datasheet, JAN1N4127-1 pinout, JAN1N4127-1 application, or JAN1N4127-1 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, radiation-hardened construction, and hermetic DO-35 axial-leaded packaging suitable for harsh-environment analog reference and overvoltage protection circuits.
Technical Context
This device operates as a precision shunt voltage regulator in reverse-biased breakdown mode, with Zener voltage specified at IZT = 250 mA and characterized across -65 °C to +175 °C junction temperature range. Its metallurgical bond ensures stable long-term voltage regulation under thermal cycling and mechanical stress.
The JAN1N4127-1 exhibits a positive temperature coefficient of +0.100 %/°C and delivers low noise density (≤1 µV/√Hz typical below 6.8 V), making it suitable for low-drift reference designs where stability over temperature and minimal broadband noise are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 56 V at 250 mA test current - defines regulated output voltage under standard bias conditions |
| Zener Impedance | 300 Ω max at 250 mA - limits regulation error under varying load current |
| Reverse Leakage Current | 0.01 µA max at 42.6 V - ensures minimal standby power loss in high-impedance bias networks |
| Power Dissipation | 500 mW at 25 °C, derated linearly to zero at 175 °C - sets thermal design envelope for PCB layout |
| Temperature Coefficient | +0.100 %/°C - quantifies voltage drift magnitude per degree Celsius change in junction temperature |
| Junction Temperature Range | -65 °C to +175 °C - enables operation in extended industrial, aerospace, and military environments |
| Package | DO-35 (DO-204AH) axial-leaded glass - provides hermetic sealing and MIL-qualified mechanical robustness |
Pinout & Package
DO-35 (DO-204AH) glass axial-leaded package with cathode indicated by band; operated with banded end positive relative to anode for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential point in shunt regulator configuration |
| Cathode | Regulated output node | Provides stable 56 V reference when reverse-biased; marked by color band on glass body |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Guarantees screening, testing, and traceability for mission-critical applications including avionics and space systems |
| Metallurgical bond construction | Prevents interfacial degradation under thermal shock and long-term bias, ensuring voltage stability over lifetime |
| Hermetically sealed glass package | Eliminates moisture ingress and corrosion risk in high-humidity or salt-spray environments |
| Radiation hardness | Inherently resistant to total ionizing dose (TID) effects per Microsemi MicroNote 050 - supports use in radiation-prone platforms |
| Low capacitance | Typical <2 pF - preserves high-frequency response in RF detector and fast transient clamp circuits |
Applications
| Avionics Power Reference | Satellite DC-DC Converter Feedback |
|---|---|
Use Scenario: Providing stable 56 V reference for voltage-controlled oscillators and analog-to-digital converter biasing in flight control computers. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise operating point for analog signal conditioning circuitry. Use Value: Maintains ±0.5% regulation over -55 °C to +125 °C ambient due to +0.100 %/°C TC and low thermal resistance (250 °C/W junction-to-lead). | Use Scenario: Setting feedback threshold in isolated 56 V output DC-DC converters used in LEO satellite bus power distribution. IC Role / Device Role / Timing Role: Precision Zener element in optocoupler-coupled feedback loop for secondary-side regulation. Use Value: Radiation-hardened construction ensures no parametric shift after 100 krad(Si) TID exposure, preserving converter accuracy throughout mission life. |
| Ground-Based Radar Bias Supply | Tactical Radio Transmitter Protection |
Use Scenario: Generating calibrated bias voltages for GaN RF power amplifier gate drivers in S-band radar transmitters. IC Role / Device Role / Timing Role: High-stability voltage reference enabling repeatable amplifier gain and linearity calibration. Use Value: 300 Ω dynamic impedance minimizes regulation error during pulsed RF load transients, maintaining driver bias within ±0.2 V. | Use Scenario: Clamping surge-induced overvoltage on 48 V DC input rails of manpack radios exposed to lightning-induced transients. IC Role / Device Role / Timing Role: Fast-response shunt protector absorbing ESD and surge energy before downstream regulators. Use Value: Hermetic DO-35 package withstands repeated 8/20 µs surges up to 50 A without parameter shift or seal failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4127US | Same 56 V Zener voltage and DO-35 package but commercial-grade (non-mil-qualified); RoHS-compliant matte-tin plating | Lacks JAN screening, radiation hardness, and extended temperature validation; not approved for flight hardware | Select for cost-sensitive ground-test equipment or non-mission-critical prototypes where MIL-spec is unnecessary |
| JANTXV1N4127 | Identical electrical specs and DO-35 package, but qualified to JANTXV level with enhanced screening and tighter lot traceability | Approved for higher-reliability programs requiring burn-in, thermal cycling, and lot acceptance testing per MIL-PRF-19500 | Select when program requirements mandate JANTXV-level reliability documentation and extended life testing coverage |
Compared with JAN1N4127-1, 1N4127US offers lower cost and RoHS compliance but omits military screening and radiation assurance, while JANTXV1N4127 adds rigorous process controls and traceability for safety-critical deployments-neither is pin-compatible drop-in replacement without requalification.
Availability
JAN1N4127-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite DC-DC converter feedback, and ground-based radar bias supply applications requiring stable component supply across extended temperature and radiation environments.
Supply support for JAN1N4127-1 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 JAN1N4127-1 belongs to Microsemi's legacy 1N4099–1N4135 family of mil-qualified Zener diodes, designed specifically to meet stringent voltage regulation, thermal stability, and environmental survivability requirements in mission-critical electronic systems.
FAQ
What is the Zener voltage tolerance for JAN1N4127-1?
JAN1N4127-1 has a nominal Zener voltage of 56 V with a standard tolerance of ±5%, as defined by JEDEC registration and verified per MIL-PRF-19500/435 test requirements. This tolerance applies at 25 °C with thermal equilibrium and 250 mA test current, and remains stable across the full -65 °C to +175 °C junction temperature range due to its metallurgical bond construction.
Is JAN1N4127-1 radiation hardened?
Yes, JAN1N4127-1 is inherently radiation hard per Microsemi MicroNote 050, with documented performance stability under total ionizing dose (TID) exposure. Its hermetic DO-35 glass package and metallurgical bond structure prevent parametric degradation up to 100 krad(Si), making it suitable for satellite and high-altitude avionics where radiation-induced voltage drift must be minimized.
What is the maximum reverse leakage current for JAN1N4127-1?
JAN1N4127-1 specifies a maximum reverse leakage current (IR) of 0.01 µA at VR = 42.6 V (75% of nominal Zener voltage), measured at 25 °C. This ultra-low leakage ensures minimal quiescent current draw in high-impedance reference divider networks and preserves accuracy in battery-powered or low-power analog subsystems.
Can JAN1N4127-1 be used in surface-mount designs?
No, JAN1N4127-1 is packaged exclusively in the axial-leaded DO-35 (DO-204AH) through-hole format. Surface-mount alternatives such as 1N4127UR-1 (DO-213AA) or 1PMT4127 (DO-216) exist in the same voltage family but require separate qualification and are not functionally or mechanically interchangeable with JAN1N4127-1 without PCB redesign.
What is the thermal resistance specification for JAN1N4127-1?
JAN1N4127-1 has a thermal resistance of 250 °C/W junction-to-lead (RθJL) when mounted with 3/8 inch (10 mm) lead length from body, and 300 °C/W junction-to-ambient (RθJA) on FR4 board with 4 mm² copper pads. These values define the thermal path for safe 500 mW operation and inform heatsinking requirements in high-power regulation circuits.
JAN1N4127-1 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:
- ±5%
- 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)
JAN1N4127-1 FAQ
1.How can I place an order for JAN1N4127-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4127-1 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 JAN1N4127-1 reliable?
The price and inventory of JAN1N4127-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4127-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4127-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4127-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4127-1?
JAN1N4127-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4127-1 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 JAN1N4127-1?
For technical support, including JAN1N4127-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4127-1 requirements.
6.How does Aetrix verify that JAN1N4127-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4127-1 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 JAN1N4127-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4127-1?
All JAN1N4127-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4127-1, 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 JAN1N4127-1 part is unused and in its original packaging.
Return procedure for JAN1N4127-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4127-1 Tags
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