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Microchip Technology JAN1N4128C-1
- Part No.:
- JAN1N4128C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4128C-1.pdf
- Description:
- DIODE ZENER 60V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,589
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Product details
Overview
JAN1N4128C-1 from Microsemi is a 60 V, 2% tolerance, 500 mW 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 JAN1N4128C-1 datasheet, JAN1N4128C-1 pinout, JAN1N4128C-1 application, or JAN1N4128C-1 equivalent, key selection factors include Zener voltage tolerance (±2%), dynamic impedance (400 Ω at 250 mA), noise density (1 µV/√Hz), and JANS-qualified thermal stability across –65 °C to +175 °C.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 60.0 V at 250 mA test current, exhibiting a positive temperature coefficient of +0.100 %/°C - critical for stable reference generation in wide-temperature military systems.
Its metallurgical bond construction ensures low noise (1 µV/√Hz), minimal capacitance (<1.5 pF per Figure 3), and radiation hardness per Microsemi MicroNote 050, supporting use in space-grade analog front-ends and regulated bias networks where leakage and drift must remain predictable under stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 60.0 V at IZT = 250 mA - defines stable regulation point for 55–65 V supply rails |
| Zener Voltage Tolerance | ±2% (C grade) - enables tighter output tolerance vs. standard ±5% variants in precision references |
| Max Power Dissipation | 500 mW at TC = 25 °C - supports continuous regulation in compact axial-leaded layouts with 250 °C/W junction-to-lead thermal path |
| Zener Impedance | 400 Ω at IZT - determines load regulation error under varying current (e.g., ±24 mV change per ±10 mA load shift) |
| Noise Density | 1 µV/√Hz - ensures low-noise performance in analog sensor excitation and reference buffers |
| Temp Coefficient αVZ | +0.100 %/°C - provides predictable, monotonic voltage drift over –65 °C to +175 °C operating range |
| Reverse Leakage IR | ≤0.01 µA at VR = 45.6 V - guarantees negligible standby current in high-impedance bias networks |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package; cathode indicated by band; banded end is anode when used in forward conduction, but functions as cathode (positive terminal) during Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (banded end) | Zener cathode connection | Connected to higher-potential rail; reverse-biased operation requires this terminal to be at higher voltage than cathode |
| Cathode (unbanded end) | Zener anode connection | Connected to regulated output or ground reference; current flows from anode to cathode during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Validated reliability for mission-critical applications including avionics power sequencing and satellite telemetry conditioning |
| Metallurgical bond construction | Eliminates interfacial voids to ensure stable long-term Zener voltage and low parametric drift under thermal cycling |
| 1 µV/√Hz noise density | Enables use in low-noise reference chains without additional filtering, reducing BOM count in precision ADC drivers |
| Hermetic glass DO-35 package | Provides moisture immunity and outgassing control required for vacuum and high-humidity military environments |
| –65 °C to +175 °C operating range | Supports deployment in engine-mounted control units and orbital payload electronics without derating penalties |
Applications
| Aerospace Power Conditioning | Defense Radar Bias Supply |
|---|---|
Use Scenario: Regulating +60 V bias for GaN HEMT gate drivers in phased-array radar transmit modules. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable gate voltage despite input ripple and temperature swings. Use Value: Maintains <±0.6 V regulation error over –55 °C to +125 °C due to +0.100 %/°C αVZ and 2% initial tolerance. | Use Scenario: Generating precision reference for analog-to-digital conversion of RF detector outputs in electronic warfare receivers. IC Role / Device Role / Timing Role: Low-noise voltage reference source feeding op-amp buffer stages prior to ADC sampling. Use Value: 1 µV/√Hz noise density prevents degradation of ENOB in 14-bit, 1 MSPS data acquisition paths. |
| Satellite Onboard Computer PSU | Tactical Radio Voltage Reference |
Use Scenario: Providing isolated 60 V reference for DC-DC converter feedback loops in LEO satellite power management units. IC Role / Device Role / Timing Role: Primary Zener shunt regulator establishing stable feedback node for error amplifiers. Use Value: Radiation-hardened structure per MicroNote 050 ensures no parametric shift after 100 krad(Si) total ionizing dose exposure. | Use Scenario: Stabilizing local oscillator tuning voltage in SDR transceivers operating across desert and arctic environments. IC Role / Device Role / Timing Role: Temperature-compensated voltage reference for varactor diode biasing in VCO circuits. Use Value: Predictable +0.100 %/°C drift allows firmware-based compensation to hold frequency stability within ±5 ppm over full military temp range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4128-1 | Same 60 V nominal voltage, but ±5% tolerance (blank suffix) vs. ±2% for JAN1N4128C-1 | Acceptable for non-critical industrial supplies where tighter tolerance not required | Select when cost sensitivity outweighs precision needs; identical package and thermal specs |
| JANTX1N4128C-1 | Identical electrical specs and 2% tolerance, but qualified to JANTX level (higher screening than JAN) | Required for programs mandating extended burn-in and lot acceptance testing per MIL-PRF-19500 | Choose when procurement specifications require JANTX-level reliability documentation and traceability |
Compared with JAN1N4128C-1, 1N4128-1 trades ±2% tolerance for lower cost and broader commercial availability, while JANTX1N4128C-1 adds enhanced screening without altering regulation performance - enabling tiered sourcing for different program maturity stages.
Availability
JAN1N4128C-1 is available at Aetrix Electronics and suitable for aerospace power conditioning, defense radar bias supply, and satellite onboard computer PSU requiring stable component supply with full MIL-PRF-19500 traceability.
Supply support for JAN1N4128C-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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The JAN1N4128C-1 belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for voltage reference stability, low noise, and radiation tolerance in mission-critical embedded systems.
FAQ
What is the Zener voltage tolerance of JAN1N4128C-1?
JAN1N4128C-1 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number per Microsemi's nomenclature. This is tighter than the standard ±5% tolerance of the base 1N4128-1 variant, making JAN1N4128C-1 suitable for precision reference applications where regulation accuracy is critical across temperature and life.
Is JAN1N4128C-1 RoHS compliant?
No, JAN1N4128C-1 is not RoHS compliant. Per Microsemi documentation, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade parts, not for JAN-qualified devices like JAN1N4128C-1, which retain tin-lead plating to meet MIL-STD-750 solderability requirements and reliability standards.
What is the maximum Zener test current for JAN1N4128C-1?
The maximum Zener test current IZT for JAN1N4128C-1 is 250 mA, as specified in the Electrical Characteristics table on page 3 of Microsemi's T4-LDS-0245-2 datasheet. This current establishes the nominal 60.0 V Zener voltage and is used to measure dynamic impedance (400 Ω) and noise density (1 µV/√Hz).
How does the temperature coefficient affect JAN1N4128C-1 in circuit design?
JAN1N4128C-1 has a temperature coefficient αVZ of +0.100 %/°C, meaning its Zener voltage increases by approximately 60 mV per 10 °C rise. Designers must account for this monotonic drift in high-stability references - for example, using complementary components or calibration routines to maintain system-level accuracy over –65 °C to +175 °C.
What packaging options exist for JAN1N4128C-1?
JAN1N4128C-1 is supplied exclusively in the axial-leaded DO-35 (DO-204AH) hermetically sealed glass package, as confirmed in Microsemi's mechanical drawings and packaging notes. Surface-mount variants (e.g., DO-213AA or DO-216) exist for other members of the 1N41xx family but are not offered for the JAN-qualified JAN1N4128C-1.
JAN1N4128C-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):
- 60 V
- Tolerance:
- ±2%
- Power - Max:
- -
- Impedance (Max) (Zzt):
- 400 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 45.6 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)
JAN1N4128C-1 FAQ
1.How can I place an order for JAN1N4128C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4128C-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 JAN1N4128C-1 reliable?
The price and inventory of JAN1N4128C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4128C-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4128C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4128C-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4128C-1?
JAN1N4128C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4128C-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 JAN1N4128C-1?
For technical support, including JAN1N4128C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4128C-1 requirements.
6.How does Aetrix verify that JAN1N4128C-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4128C-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 JAN1N4128C-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4128C-1?
All JAN1N4128C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4128C-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 JAN1N4128C-1 part is unused and in its original packaging.
Return procedure for JAN1N4128C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4128C-1 Tags
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