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Microchip Technology JAN1N4127C-1
- Part No.:
- JAN1N4127C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4127C-1.pdf
- Description:
- DIODE ZENER 56V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,789
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Product details
Overview
JAN1N4127C-1 from Microsemi is a 500 mW, 56 V, ±2% tolerance metallurgically bonded glass Zener diode in DO-35 (DO-204AH) 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 JAN1N4127C-1 datasheet, JAN1N4127C-1 pinout, JAN1N4127C-1 application, or JAN1N4127C-1 equivalent, key selection criteria include Zener voltage tolerance (±2%), dynamic impedance (300 Ω @ 250 mA), noise density (1 µV/√Hz), temperature coefficient (+0.100 %/°C), and JANS-qualified reliability grading.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 56 V at 250 mA test current, exhibiting low noise density (1 µV/√Hz) and stable regulation across -65 °C to +175 °C junction temperature range. Its metallurgical bond construction ensures mechanical robustness under thermal cycling and shock.
The diode features a cathode band polarity indicator and is rated for 0.5 W average power dissipation with linear derating above 50 °C lead temperature. It delivers 42.6 mA maximum Zener current at rated power and maintains <0.01 µA reverse leakage at 45.6 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 56 V ±2% at 250 mA - defines precise regulation point for reference and clamp circuits |
| Power Dissipation | 500 mW @ 25 °C - supports stable operation in compact, unheatsinked designs |
| Dynamic Impedance ZZT | 300 Ω @ 250 mA - determines output voltage stability under load transients |
| Noise Density | 1 µV/√Hz - enables use in low-noise analog references and precision instrumentation |
| Temp. Coefficient αVZ | +0.100 %/°C - quantifies voltage drift over temperature for system-level error budgeting |
| Max Reverse Leakage IR | 0.01 µA @ 45.6 V - ensures minimal standby current in high-impedance bias networks |
| Junction Temp Range | -65 °C to +175 °C - supports operation in extreme environmental conditions without derating |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with tin-lead plating; cathode indicated by colored band; weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during Zener operation; used for forward-bias testing |
| Cathode (banded end) | Zener regulation terminal | Connected to higher-potential node; reverse-biased to maintain 56 V reference at load |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Validated reliability for mission-critical systems requiring screening to military standards |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal stress and vibration |
| Low noise density (1 µV/√Hz) | Enables direct use in high-resolution ADC references and sensor excitation circuits |
| Hermetic glass sealing | Prevents moisture ingress and parameter shift over decades in harsh environments |
| Non-ESD-sensitive design | Withstands handling without special precautions per MIL-STD-750 Method 1020 |
Applications
| High-Voltage Reference Supply | Aerospace Power Monitor |
|---|---|
Use Scenario: Generating a stable 56 V reference for calibration of flight control sensor interfaces. IC Role / Device Role / Timing Role: Shunt voltage regulator providing primary reference voltage for analog-to-digital conversion circuitry. Use Value: ±2% initial tolerance and +0.100 %/°C tempco enable sub-0.5% total error over -55 °C to +125 °C operating range. | Use Scenario: Monitoring bus voltage in radiation-hardened satellite power distribution units. IC Role / Device Role / Timing Role: Overvoltage clamp protecting downstream DC-DC converters from transient surges. Use Value: Hermetic DO-35 package and JANS-qualified construction ensure long-term stability in total ionizing dose (TID) environments. |
| Defense Radar Bias Network | Industrial HV Sensor Excitation |
Use Scenario: Providing regulated bias to GaN RF amplifier stages in ground-based radar transmitters. IC Role / Device Role / Timing Role: Precision Zener element in active bias control loop maintaining constant drain current. Use Value: 300 Ω dynamic impedance minimizes voltage perturbation during RF modulation-induced current ripple. | Use Scenario: Exciting piezoresistive pressure sensors in oil & gas downhole tools operating at 150 °C ambient. IC Role / Device Role / Timing Role: Stable voltage source for Wheatstone bridge excitation in high-temperature analog front ends. Use Value: -65 °C to +175 °C junction rating and low capacitance (<2 pF typical) preserve signal integrity at sensor bandwidths up to 10 kHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4127UR-1 | Same 56 V Zener voltage and ±2% tolerance, but in DO-213AA surface-mount package | Requires PCB rework for SMT assembly; lacks axial-lead flexibility for prototyping or through-hole legacy systems | Select when automated assembly and board space reduction are prioritized over manual repairability |
| JANTXV1N4127C-1 | Identical electrical specs but qualified to JANTXV level with extended screening (burn-in, thermal shock, life test) | Suitable for Class H (high reliability) avionics where JAN-level screening is insufficient | Select when system certification requires enhanced process controls beyond JAN qualification |
Compared with JAN1N4127C-1, 1N4127UR-1 offers footprint miniaturization at the cost of mounting flexibility, while JANTXV1N4127C-1 adds screening rigor for mission-critical deployments-neither is pin-compatible due to differing packages or qualification scope.
Availability
JAN1N4127C-1 is available at Aetrix Electronics and suitable for aerospace power monitoring, defense radar bias networks, industrial high-voltage sensor excitation, and high-reliability reference supply applications requiring stable component supply across extended product lifecycles.
Supply support for JAN1N4127C-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 JAN1N4127C-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for voltage regulation in defense, space, and critical infrastructure systems where long-term parametric stability and environmental resilience are mandatory.
FAQ
What is the Zener voltage tolerance of JAN1N4127C-1?
JAN1N4127C-1 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number per Microsemi's nomenclature. This means its nominal 56 V Zener voltage falls within 54.88 V to 57.12 V at 250 mA test current and 25 °C ambient, enabling tighter system-level voltage accuracy than standard ±5% variants.
Is JAN1N4127C-1 suitable for high-temperature operation?
Yes, JAN1N4127C-1 is rated for junction temperatures from -65 °C to +175 °C and features linear power derating starting at 50 °C lead temperature. Its metallurgically bonded construction and hermetic DO-35 package ensure stable 56 V regulation in downhole, engine bay, or spacecraft thermal environments without parameter drift.
Does JAN1N4127C-1 require external heat sinking?
No, JAN1N4127C-1 does not require external heat sinking under typical conditions. With a thermal resistance of 250 °C/W junction-to-lead (at 10 mm lead length), it dissipates 500 mW safely on standard FR4 PCBs using 4 mm² copper pads-provided ambient temperature remains below 50 °C or lead temperature is actively managed.
What is the noise performance of JAN1N4127C-1?
JAN1N4127C-1 delivers 1 µV/√Hz noise density at 250 mA Zener current, measured in the 1–3 kHz band. This ultra-low noise enables direct use in precision analog circuits such as high-resolution data acquisition references and low-drift sensor excitation, outperforming higher-voltage Zeners in the same family.
How is polarity marked on JAN1N4127C-1?
JAN1N4127C-1 uses a cathode band marking on the glass body to indicate polarity. The banded end is the cathode and must be connected to the higher-potential node during Zener regulation. Forward voltage is 1.1 V at 200 mA, confirming standard silicon P-N junction behavior.
JAN1N4127C-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:
- -
- 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)
JAN1N4127C-1 FAQ
1.How can I place an order for JAN1N4127C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4127C-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 JAN1N4127C-1 reliable?
The price and inventory of JAN1N4127C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4127C-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4127C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4127C-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4127C-1?
JAN1N4127C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4127C-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 JAN1N4127C-1?
For technical support, including JAN1N4127C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4127C-1 requirements.
6.How does Aetrix verify that JAN1N4127C-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4127C-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 JAN1N4127C-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4127C-1?
All JAN1N4127C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4127C-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 JAN1N4127C-1 part is unused and in its original packaging.
Return procedure for JAN1N4127C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4127C-1 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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