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Microchip Technology JANTX1N4128C-1/TR
- Part No.:
- JANTX1N4128C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4128C-1/TR.pdf
- Description:
- DIODE ZENER 60V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,049
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Product details
Overview
JANTX1N4128C-1/TR from Microsemi is a 60 V, 2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability voltage regulation in aerospace power supplies and precision reference circuits.
For engineers reviewing the JANTX1N4128C-1/TR datasheet, JANTX1N4128C-1/TR pinout, JANTX1N4128C-1/TR application, or JANTX1N4128C-1/TR equivalent, key selection criteria include Zener voltage tolerance (±2%), noise density (≤1 µV/√Hz), dynamic impedance (400 Ω max), temperature coefficient (+0.100 %/°C), and MIL-qualified reliability for harsh-environment analog references.
Technical Context
This device operates as a two-terminal voltage reference with cathode-banded polarity, requiring reverse-bias operation where the banded end is positive relative to the anode. It delivers stable 60 V regulation at IZT = 250 mA with low noise density and minimal capacitance across its operating range.
Its metallurgical bond construction ensures robust thermal performance (RθJL = 250 °C/W) and radiation hardness per Microsemi MicroNote 050, supporting use in space-grade analog signal conditioning and voltage-clamping applications where long-term parametric stability is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 60.0 V ±2% at 250 mA - defines precise regulation point for reference design |
| Power Dissipation | 500 mW at 25 °C - sets maximum continuous DC power handling before derating |
| Zener Impedance ZZT | 400 Ω max at 250 mA - determines output voltage variation under load current changes |
| Noise Density | ≤1 µV/√Hz - enables low-noise analog references in precision instrumentation |
| Temp Coefficient αVZ | +0.100 %/°C - quantifies drift rate over temperature for stability-critical designs |
| Reverse Leakage IR | 0.01 µA at 45.6 V - ensures minimal current draw in standby or high-impedance bias networks |
| Max Zener Current IZM | 45.6 mA - establishes safe upper limit for sustained regulation without thermal runaway |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with cathode indicated by band; leads are tin-lead or RoHS-compliant matte-tin plated and solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail; forms return path for Zener current |
| Cathode (banded end) | Regulated output node | Provides stable 60 V output when reverse-biased; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated for aerospace and defense programs requiring traceable reliability and lot-level testing |
| Metallurgical bond construction | Enables radiation hardness and long-term parameter stability under thermal cycling |
| 2% Zener voltage tolerance | Reduces need for post-calibration trimming in precision reference circuits |
| Low noise density (≤1 µV/√Hz) | Supports high-resolution ADC references and low-drift op-amp biasing |
| Hermetic glass sealing | Prevents moisture ingress and parameter shift in humid or high-vacuum environments |
Applications
| Avionics Power Reference | Satellite Sensor Biasing |
|---|---|
Use Scenario: Providing stable 60 V reference for analog-to-digital converters in flight control computers. IC Role / Device Role / Timing Role: Two-terminal voltage reference regulating supply rail for precision data acquisition subsystems. Use Value: ±2% tolerance and +0.100 %/°C tempco ensure <±0.6% total drift over –55°C to +125°C, meeting DO-160E environmental requirements. | Use Scenario: Biasing photodiode amplifiers in Earth observation payload sensors. IC Role / Device Role / Timing Role: Low-noise Zener source establishing fixed bias voltage for transimpedance amplifier input stages. Use Value: ≤1 µV/√Hz noise density prevents signal degradation in sub-nA photocurrent measurements. |
| Rad-Hard Voltage Clamp | Military Radio Reference |
Use Scenario: Protecting front-end receivers from ESD-induced overvoltage in LEO satellite comms modules. IC Role / Device Role / Timing Role: Reverse-biased clamping element limiting transient voltage spikes on RF signal paths. Use Value: Hermetic DO-35 package and metallurgical bond withstand >100 krad(Si) TID, maintaining clamp threshold within spec after irradiation. | Use Scenario: Generating stable local oscillator tuning voltage in HF tactical radios operating in desert environments. IC Role / Device Role / Timing Role: Precision voltage reference feeding DAC-controlled VCO bias network. Use Value: JANTX qualification ensures operation at 125°C ambient with <0.5% regulation error, enabling extended field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4128US-1 | Same 60 V, 2% Zener voltage but in DO-213AA surface-mount package | Requires PCB rework for SMT assembly; lacks axial-lead mechanical mounting flexibility | Select when board space is constrained and automated placement is required |
| JAN1N4128C-1 | Identical electrical specs but qualified only to JAN level (lower screening than JANTX) | Not approved for mission-critical avionics; limited to non-flight hardware or ground test equipment | Select when full JANTX reliability is not mandated and cost reduction is prioritized |
Compared with JANTX1N4128C-1/TR, the 1N4128US-1 offers identical regulation performance in a smaller footprint but sacrifices axial-mount versatility, while the JAN1N4128C-1 reduces qualification rigor and lifecycle assurance-making the JANTX variant the only choice for flight-certified systems demanding full MIL-PRF-19500/435 compliance.
Availability
JANTX1N4128C-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite sensor biasing, rad-hard voltage clamping, and military radio reference applications requiring stable component supply across extended production lifecycles.
Supply support for JANTX1N4128C-1/TR 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 JANTX1N4128C-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for precision voltage regulation in radiation-exposed, thermally extreme, and long-duration mission-critical systems.
FAQ
What is the Zener voltage tolerance for JANTX1N4128C-1/TR?
JANTX1N4128C-1/TR has a nominal Zener voltage of 60.0 V with a ±2% tolerance, meaning the actual regulation voltage falls between 58.8 V and 61.2 V at 250 mA test current and 25 °C ambient temperature. This tighter tolerance is achieved through post-manufacture screening and is specified in the Electrical Characteristics table on page 3 of the T4-LDS-0245-2 datasheet.
Is JANTX1N4128C-1/TR suitable for space applications?
Yes, JANTX1N4128C-1/TR is qualified to MIL-PRF-19500/435 JANTX level and features inherent radiation hardness per Microsemi MicroNote 050. Its metallurgically bonded DO-35 construction and hermetic glass seal make it suitable for low-Earth orbit missions where total ionizing dose (TID) resistance and parametric stability under thermal cycling are required.
What is the maximum Zener current rating for JANTX1N4128C-1/TR?
The maximum Zener current IZM for JANTX1N4128C-1/TR is 45.6 mA at 25 °C ambient, derived from its 500 mW power rating and 60 V Zener voltage. This value is listed in the Electrical Characteristics table and assumes proper thermal management via lead conduction (RθJL = 250 °C/W).
Does JANTX1N4128C-1/TR have low noise performance?
Yes, JANTX1N4128C-1/TR exhibits ≤1 µV/√Hz noise density at 250 mA test current, as confirmed in the Electrical Characteristics table. This low noise enables use in precision analog circuits such as ADC references and low-drift op-amp bias networks where signal integrity is critical.
What does the "TR" suffix indicate in JANTX1N4128C-1/TR?
The "TR" suffix in JANTX1N4128C-1/TR indicates tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. This packaging option is documented in the Mechanical and Packaging section of the T4-LDS-0245-2 datasheet and does not affect electrical or reliability specifications of the JANTX1N4128C-1/TR device itself.
JANTX1N4128C-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- 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/TR FAQ
1.How can I place an order for JANTX1N4128C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4128C-1/TR 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/TR reliable?
The price and inventory of JANTX1N4128C-1/TR 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/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4128C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4128C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4128C-1/TR?
JANTX1N4128C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4128C-1/TR 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/TR?
For technical support, including JANTX1N4128C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4128C-1/TR requirements.
6.How does Aetrix verify that JANTX1N4128C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4128C-1/TR 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/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4128C-1/TR?
All JANTX1N4128C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4128C-1/TR, 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/TR part is unused and in its original packaging.
Return procedure for JANTX1N4128C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4128C-1/TR Tags
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