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Microchip Technology JANS1N4131C-1/TR
- Part No.:
- JANS1N4131C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4131C-1/TR.pdf
- Description:
- DIODE ZENER 75V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,153
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Product details
Overview
JANS1N4131C-1/TR from Microsemi is a 75 V, 2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense voltage regulation. It delivers stable reference voltage across wide current (250 mA test) and temperature (–65 °C to +175 °C) ranges with low noise density (1 µV/√Hz) and radiation-hardened construction.
For engineers reviewing the JANS1N4131C-1/TR datasheet, JANS1N4131C-1/TR pinout, JANS1N4131C-1/TR application, or JANS1N4131C-1/TR equivalent, key selection criteria include Zener voltage tolerance (2%), JANS-level qualification, DO-35 axial-leaded hermetic packaging, thermal resistance (RθJL = 250 °C/W), and low-noise performance at 75 V regulation.
Technical Context
This device operates as a precision voltage reference in reverse-biased breakdown mode, with Zener voltage specified at IZT = 250 mA and dynamic impedance ZZT = 700 Ω. Its metallurgical bond ensures mechanical stability under thermal cycling and shock, critical for space-grade applications.
The JANS qualification confirms compliance with MIL-PRF-19500/435 screening including burn-in, temperature cycling, and hermeticity testing. Noise density of 1 µV/√Hz at 75 V enables use in low-noise analog references where voltage stability and spectral purity are essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 75 V ±2% at IZT = 250 mA - precise regulation point for high-voltage reference circuits |
| Power Dissipation | 500 mW at TL = 25 °C - supports stable operation with linear derating to zero at 175 °C |
| Dynamic Impedance ZZT | 700 Ω at IZT = 250 mA - defines regulation stiffness against load current variation |
| Noise Density ND | 1 µV/√Hz - enables low-noise analog references in instrumentation and telemetry |
| Temp. Coefficient αVZ | +0.100 %/°C - predictable positive drift allows compensation in precision designs |
| Reverse Leakage IR | 10 nA @ VR = 60 V - ensures minimal error contribution in high-impedance bias networks |
| Thermal Resistance RθJL | 250 °C/W @ 3/8″ lead length - determines junction temperature rise under power dissipation |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package. Cathode indicated by band; banded end must be biased positive for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; establishes reference potential for regulated output |
| Cathode | Zener regulation terminal | Banded end; connected to unregulated supply; voltage develops across cathode-to-anode during reverse conduction |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Eliminates die attach voids and delamination risk under thermal stress, ensuring long-term reliability in space environments |
| JANS qualification per MIL-PRF-19500/435 | Validated screening for radiation hardness, hermeticity, and extended temperature operation (–65 °C to +175 °C) |
| Low noise density (1 µV/√Hz) | Enables use in precision analog front-ends where reference noise directly impacts ADC SNR and measurement resolution |
| 2% Zener voltage tolerance | Reduces need for post-calibration trimming in high-accuracy voltage reference designs |
| Hermetic glass DO-35 package | Prevents moisture ingress and corrosion, supporting >20-year shelf life and mission-critical field longevity |
Applications
| Spacecraft Power Regulation | Aerospace Avionics Reference |
|---|---|
Use Scenario: Regulating auxiliary bus voltage in satellite power distribution units exposed to extreme thermal cycling and radiation. IC Role / Device Role / Timing Role: Zener diode providing primary voltage reference for DC-DC converter feedback loops. Use Value: JANS qualification and radiation hardness ensure stable 75 V reference over 15+ year orbital missions without parameter drift. | Use Scenario: Generating stable bias voltages for flight control sensor signal conditioning in fighter jet avionics bays. IC Role / Device Role / Timing Role: Precision voltage reference for op-amp offset nulling and ADC reference buffers. Use Value: 2% tolerance and 1 µV/√Hz noise enable sub-0.1% measurement accuracy in inertial navigation systems. |
| Nuclear Instrumentation | High-Reliability Test Equipment |
Use Scenario: Biasing photomultiplier tube (PMT) anode chains in radiation detection spectrometers deployed in nuclear facilities. IC Role / Device Role / Timing Role: High-voltage Zener regulator establishing graded potential ladder across PMT dynodes. Use Value: Hermetic DO-35 package prevents leakage path degradation in high-humidity, high-radiation environments. | Use Scenario: Calibration reference in military-grade portable oscilloscopes requiring traceable voltage standards. IC Role / Device Role / Timing Role: Primary Zener reference source for internal DAC calibration and self-test routines. Use Value: Metallurgical bond and MIL-qualified screening guarantee calibration stability over 10,000-hour field service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4131US-1 | Same 75 V, 2% spec but in surface-mount DO-213AA package; no JANS qualification | Used in commercial or industrial PCBs where space constraints prohibit axial leads | Select when board area is limited and MIL-spec is not required |
| JANTXV1N4131C-1 | Identical electrical specs and DO-35 package, but qualified only to JANTXV level (less stringent screening than JANS) | Suitable for high-reliability ground-based systems where full space qualification is unnecessary | Select when radiation hardness and extended temperature validation are not mandatory |
Compared with JANS1N4131C-1/TR, the JANTXV1N4131C-1 offers identical regulation performance at lower cost and screening rigor, while the 1N4131US-1 trades JANS qualification and axial mounting for compact SMT integration-enabling design flexibility across mission-critical and commercial high-voltage reference needs.
Availability
JANS1N4131C-1/TR is available at Aetrix Electronics and suitable for spacecraft power regulation, aerospace avionics reference, and nuclear instrumentation requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for JANS1N4131C-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 JANS1N4131C-1/TR belongs to Microsemi's legacy MIL-PRF-19500/435-qualified Zener diode family, designed specifically for radiation-hardened, high-stability voltage reference applications in mission-critical electronic systems.
FAQ
What is the Zener voltage tolerance of JANS1N4131C-1/TR?
JANS1N4131C-1/TR has a nominal Zener voltage of 75 V with a tolerance of ±2%, as indicated by the "C" suffix in the part number per Microsemi's nomenclature. This tolerance is verified at IZT = 250 mA and 25 °C, and applies across the full qualified temperature range (–65 °C to +175 °C) under JANS screening conditions.
Is JANS1N4131C-1/TR RoHS compliant?
No, JANS1N4131C-1/TR is not RoHS compliant. Per Microsemi documentation, RoHS-compliant versions (suffix "e3") are available only for commercial-grade variants; JANS-level devices retain tin-lead plating to meet MIL-STD-750 solderability and reliability requirements for high-reliability applications.
What does the "TR" suffix mean in JANS1N4131C-1/TR?
The "TR" suffix in JANS1N4131C-1/TR indicates tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. This packaging option is available for volume orders and maintains full JANS qualification, with no impact on electrical or reliability specifications of the JANS1N4131C-1/TR device.
How is the polarity marked on JANS1N4131C-1/TR?
JANS1N4131C-1/TR 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 side of the circuit for proper Zener regulation; the opposite (unbanded) end is the anode and connects to system ground or reference potential.
What is the maximum Zener current IZM for JANS1N4131C-1/TR?
The maximum Zener current IZM for JANS1N4131C-1/TR is 57.0 mA, derived from its 500 mW power rating and 75 V Zener voltage (IZM = PM(AV)/VZ). This value assumes operation at 25 °C lead temperature and accounts for thermal derating above 50 °C per the published power derating curve.
JANS1N4131C-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):
- 75 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 700 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 57 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4131C-1/TR FAQ
1.How can I place an order for JANS1N4131C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4131C-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 JANS1N4131C-1/TR reliable?
The price and inventory of JANS1N4131C-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 JANS1N4131C-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4131C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4131C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4131C-1/TR?
JANS1N4131C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4131C-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 JANS1N4131C-1/TR?
For technical support, including JANS1N4131C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4131C-1/TR requirements.
6.How does Aetrix verify that JANS1N4131C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4131C-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 JANS1N4131C-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4131C-1/TR?
All JANS1N4131C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4131C-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 JANS1N4131C-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4131C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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