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Microchip Technology JANTX1N4128C-1
- Part No.:
- JANTX1N4128C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4128C-1.pdf
- Description:
- DIODE ZENER 60V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,930
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Product details
Overview
JANTX1N4128C-1 from Microsemi is a 500 mW, 60 V Zener voltage regulator diode in DO-35 glass package with 2% tolerance, metallurgical bond construction, and MIL-PRF-19500/435 JANTX qualification for high-reliability analog reference and power regulation applications.
For engineers reviewing the JANTX1N4128C-1 datasheet, JANTX1N4128C-1 pinout, JANTX1N4128C-1 application, or JANTX1N4128C-1 equivalent, key selection criteria include Zener voltage accuracy (±2%), low noise density (≤1 μV/√Hz at 60 V), thermal resistance (250 °C/W junction-to-lead), and military-grade reliability under extended temperature (-65 to +175 °C).
Technical Context
This device operates as a precision shunt voltage reference in reverse-biased breakdown mode, delivering stable 60 V regulation across 250 mA test current and up to 45.6 mA maximum Zener current. Its internal metallurgical bond ensures mechanical robustness and low parameter drift under thermal cycling.
Designed for high-reliability environments, JANTX1N4128C-1 exhibits a +0.100 %/°C temperature coefficient, dynamic impedance of 400 Ω at IZT, and reverse leakage ≤0.01 µA at 48 V - enabling use in precision analog circuits where long-term stability and radiation hardness are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 60.0 V ±2% at 250 mA - defines precise regulation point for reference and clamp circuits |
| Power Dissipation | 500 mW at 25 °C - supports continuous operation in compact axial-leaded layouts with derating above 50 °C |
| Zener Impedance ZZT | 400 Ω at IZT - determines output impedance and load regulation sensitivity in feedback networks |
| Noise Density ND | ≤1 μV/√Hz - enables low-noise performance in precision voltage references and sensor excitation |
| Temp Coefficient αVZ | +0.100 %/°C - quantifies voltage drift over -65 to +175 °C operating range |
| Reverse Leakage IR | ≤0.01 µA at 48 V - ensures minimal error current in high-impedance bias networks |
| Junction Temp Range | -65 to +175 °C - validated for aerospace, defense, and downhole industrial systems |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package; cathode indicated by band; banded end is positive during Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; establishes return path for Zener current |
| Cathode | Regulated output node | Banded end; supplies stable 60 V when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated for high-reliability programs requiring screening per military standards |
| Metallurgically bonded construction | Eliminates interfacial delamination risk under thermal shock and vibration |
| Low noise density (≤1 μV/√Hz) | Reduces RMS noise contribution in precision analog signal chains |
| Hermetic glass DO-35 package | Prevents moisture ingress and parameter shift over 20+ year service life |
| 1% to 5% Zener tolerance options | JANTX1N4128C-1's 2% tolerance enables tighter system-level voltage margin control |
Applications
| Aerospace Power Monitoring | Defense Radar Bias Supply |
|---|---|
Use Scenario: Monitoring 28 V DC bus voltage in satellite power distribution units using resistive divider + comparator. IC Role / Device Role / Timing Role: Precision 60 V Zener reference sets comparator trip threshold with <±0.2 V error over temperature. Use Value: Enables detection of overvoltage events within ±0.33% of nominal bus voltage across -55 to +125 °C. | Use Scenario: Providing stable bias voltage to GaN RF amplifier stages in phased-array radar transceivers. IC Role / Device Role / Timing Role: Shunt regulator maintains constant 60 V supply despite load transients and EMI-induced ripple. Use Value: Reduces RF output phase noise by limiting supply-induced jitter in high-frequency amplifiers. |
| Industrial Process Controller Reference | Nuclear Instrumentation Calibration |
Use Scenario: Generating 60 V reference for 16-bit DAC output stage in PLC analog output modules. IC Role / Device Role / Timing Role: High-stability Zener establishes full-scale voltage for current-loop (4–20 mA) driver calibration. Use Value: Achieves <0.05% linearity error over 10-year field deployment due to low TC and hermetic sealing. | Use Scenario: Calibrating gamma-ray spectrometer front-end amplifiers requiring traceable voltage standards. IC Role / Device Role / Timing Role: Primary reference in NIST-traceable calibration chain for detector bias supplies. Use Value: Meets ANSI N42.14 requirements for long-term drift (<100 ppm/year) in radiation-hardened instrumentation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4128US-1 | Same 60 V Zener voltage, DO-213AA surface-mount package, 5% tolerance, no military qualification | Used in commercial PCBs where space-constrained SMT layout is required and MIL-spec not mandated | Select when footprint size and automated assembly outweigh need for JANTX screening and 2% tolerance |
| JAN1N4128C-1 | Identical electrical specs and DO-35 package, but qualified only to JAN level (less rigorous screening than JANTX) | Suitable for cost-sensitive defense subsystems where full JANTX environmental testing is not required | Select when budget constraints exist but DO-35 form factor and 2% tolerance remain mandatory |
Compared with JANTX1N4128C-1, 1N4128US-1 trades military reliability and tight tolerance for SMT compatibility, while JAN1N4128C-1 reduces cost and test burden without sacrificing package or basic Zener performance - enabling tiered sourcing across program maturity stages.
Availability
JANTX1N4128C-1 is available at Aetrix Electronics and suitable for aerospace power monitoring, defense radar bias supply, and industrial process controller reference requiring stable component supply with guaranteed MIL-spec compliance and long-term obsolescence management.
Supply support for JANTX1N4128C-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, mixed-signal, and RF semiconductors for aerospace, defense, and industrial markets.
JANTX1N4128C-1 belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for precision voltage regulation in mission-critical systems where parameter stability, radiation hardness, and long-term reliability are non-negotiable.
FAQ
What is the Zener voltage tolerance of JANTX1N4128C-1?
JANTX1N4128C-1 has a Zener voltage tolerance of ±2%, as indicated by the "C" suffix in its nomenclature. This corresponds to a regulated voltage of 60.0 V ±1.2 V at 250 mA test current and 25 °C ambient. The tighter tolerance supports higher-accuracy reference designs compared to standard 5% variants like JANTX1N4128-1.
Is JANTX1N4128C-1 RoHS compliant?
No, JANTX1N4128C-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 JANTX-qualified devices. JANTX1N4128C-1 uses tin-lead plating per MIL-STD-750 and retains lead content to meet solderability and reliability requirements for military applications.
What is the maximum Zener current for JANTX1N4128C-1?
The maximum Zener current (IZM) for JANTX1N4128C-1 is 45.6 mA, derived from its 500 mW power rating and 60 V nominal Zener voltage (P = V × I). This value assumes operation at 25 °C lead temperature; current must be reduced linearly above 50 °C per the published derating curve to avoid exceeding junction temperature limits.
How does the temperature coefficient affect JANTX1N4128C-1 in wide-temperature applications?
JANTX1N4128C-1 has a temperature coefficient of +0.100 %/°C, meaning its Zener voltage increases by approximately 60 mV per °C rise above 25 °C. Over the full -65 to +175 °C range, this results in a total shift of ~12 V - a critical factor in precision references where compensation or trimming may be required to maintain system-level accuracy.
Can JANTX1N4128C-1 be used in surface-mount designs?
No, JANTX1N4128C-1 is packaged exclusively in the axial-leaded DO-35 (DO-204AH) glass case and is not suitable for surface-mount assembly. For SMT-compatible alternatives with identical 60 V rating, consider the commercial-grade 1N4128US-1 in DO-213AA package - though it lacks JANTX qualification and 2% tolerance.
JANTX1N4128C-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:
- 500 mW
- 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)
JANTX1N4128C-1 FAQ
1.How can I place an order for JANTX1N4128C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4128C-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 JANTX1N4128C-1 reliable?
The price and inventory of JANTX1N4128C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4128C-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4128C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4128C-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4128C-1?
JANTX1N4128C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4128C-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 JANTX1N4128C-1?
For technical support, including JANTX1N4128C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4128C-1 requirements.
6.How does Aetrix verify that JANTX1N4128C-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4128C-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 JANTX1N4128C-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4128C-1?
All JANTX1N4128C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4128C-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 JANTX1N4128C-1 part is unused and in its original packaging.
Return procedure for JANTX1N4128C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4128C-1 Tags
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