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Microchip Technology JAN1N4131D-1
- Part No.:
- JAN1N4131D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4131D-1.pdf
- Description:
- DIODE ZENER 75V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,403
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Product details
Overview
JAN1N4131D-1 from Microsemi is a 500 mW, 75 V Zener diode in DO-35 glass package, qualified to JANS level per MIL-PRF-19500/435, with 1% voltage tolerance, 700 Ω dynamic impedance at 250 mA, and 5.1 µA reverse leakage at 60 V. It serves as a precision voltage reference in radiation-hardened military power regulation circuits.
For engineers reviewing the JAN1N4131D-1 datasheet, JAN1N4131D-1 pinout, JAN1N4131D-1 application, or JAN1N4131D-1 equivalent, key selection criteria include Zener voltage tolerance (1%), junction temperature range (–65°C to +175°C), noise density (1 µV/√Hz), metallurgical bond construction, and JANS-level qualification for high-reliability aerospace systems.
Technical Context
This device operates in reverse breakdown with cathode-banded polarity, requiring positive bias on the banded end relative to the anode. Its metallurgically bonded junction ensures stable regulation across wide current (250 mA test point) and temperature (–65°C to +175°C) ranges.
Designed for high-reliability mil-spec applications, it delivers low noise (1 µV/√Hz), minimal capacitance (typ. <2 pF at 75 V), and inherent radiation hardness per Microsemi MicroNote 050 - critical for satellite power supervisors and avionics voltage references.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 75 V ±1% at 250 mA - enables precise 75 V rail regulation with tight tolerance for mission-critical analog monitoring. |
| Power Dissipation | 500 mW at 25°C, derated linearly to zero at 175°C - supports sustained operation in sealed enclosures without forced cooling. |
| Dynamic Impedance ZZT | 700 Ω max at 250 mA - ensures stable output under load transients in feedback loops of regulated DC-DC converters. |
| Reverse Leakage IR | 5.1 µA max at 60 V - minimizes standby current loss in low-power sensor bias networks. |
| Noise Density | 1 µV/√Hz - provides ultra-low-noise reference for precision ADC reference buffers and PLL VCO tuning circuits. |
| Temp Coefficient αVZ | +0.100 %/°C - predictable positive drift allows compensation in temperature-stable reference designs. |
| Junction Temp Range | –65°C to +175°C - validated for operation in missile guidance electronics and space-grade power sequencers. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package; cathode indicated by single black band; leads tin-lead or RoHS-compliant matte-tin plated; weight ≈0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to system ground or common return; must remain at lower potential than cathode during regulation. |
| Cathode (banded end) | Zener output terminal | Provides regulated 75 V output when reverse-biased; polarity reversal causes forward conduction and loss of regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling, ensuring long-term stability in launch-vibration environments. |
| JANS qualification per MIL-PRF-19500/435 | Validated for Class S screening including burn-in, temperature cycling, and hermeticity testing - required for flight hardware. |
| 1% Zener voltage tolerance | Reduces need for external trimming in precision reference chains, lowering BOM count in telemetry signal conditioning modules. |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per MicroNote 050 - avoids costly rad-hard ASIC redesigns in LEO satellite power systems. |
| Low noise density (1 µV/√Hz) | Enables use in low-phase-noise oscillator biasing where reference noise directly modulates carrier purity. |
Applications
| Avionics Power Monitoring | Satellite Bus Voltage Reference |
|---|---|
Use Scenario: Real-time monitoring of 28 V DC bus in fighter aircraft auxiliary power units using resistive divider into ADC. IC Role / Device Role / Timing Role: Precision 75 V Zener reference sets ADC full-scale threshold for overvoltage detection at ±1% accuracy. Use Value: JANS qualification ensures immunity to ESD events during maintenance and sustained operation at –55°C to +125°C ambient. | Use Scenario: Biasing voltage reference for radiation-tolerant DC-DC converter feedback loop in CubeSat EPS. IC Role / Device Role / Timing Role: Provides stable 75 V reference to error amplifier controlling primary-side MOSFET duty cycle. Use Value: Inherent radiation hardness eliminates need for shielding or redundancy, saving mass and volume in constrained payload envelopes. |
| Military Radar Signal Conditioning | Nuclear Instrumentation Calibration |
Use Scenario: High-voltage bias supply for GaAs MMIC driver stages in ground-based radar transmitters. IC Role / Device Role / Timing Role: Regulates 75 V gate bias rail with <700 Ω dynamic impedance to suppress ripple-induced AM modulation. Use Value: Low 1 µV/√Hz noise prevents baseband interference in IF sampling receivers operating below 10 MHz. | Use Scenario: Calibration standard for portable gamma spectrometers requiring traceable 75 V reference under field conditions. IC Role / Device Role / Timing Role: Primary voltage standard in handheld calibrator, used to verify PMT HV supply linearity. Use Value: 1% tolerance and +0.100 %/°C coefficient allow field recalibration without lab-grade equipment across –20°C to +60°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JAN1N4131US-1 | Same 75 V, 1% tolerance, but in DO-213AA surface-mount package; no axial leads. | Used where PCB real estate is constrained and wave-soldering is not required. | Select JAN1N4131US-1 only when board layout mandates SMT and thermal pad access is available. |
| 1N4131D-1 (commercial grade) | Identical electrical specs but qualified only to commercial level; no MIL-PRF-19500 screening. | Suitable for ground-test fixtures and non-flight prototypes where cost drives selection. | Choose 1N4131D-1 for development labs; JAN1N4131D-1 remains mandatory for flight hardware per program requirements. |
Compared with JAN1N4131D-1, JAN1N4131US-1 offers identical regulation performance in a space-saving SMT form factor but lacks axial-lead mechanical robustness for vibration-prone mounts, while 1N4131D-1 provides cost savings only where MIL-spec reliability is not mandated.
Availability
JAN1N4131D-1 is available at Aetrix Electronics and suitable for avionics power monitoring, satellite bus voltage reference, and nuclear instrumentation calibration requiring stable component supply across extended temperature and radiation environments.
Supply support for JAN1N4131D-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 analog and mixed-signal components for aerospace, defense, and industrial markets.
The JAN1N4131D-1 belongs to Microsemi's legacy MIL-PRF-19500/435-qualified Zener diode family, engineered specifically for precision voltage regulation in radiation-exposed, high-vibration, and extreme-temperature military platforms.
FAQ
What is the Zener voltage tolerance of JAN1N4131D-1?
JAN1N4131D-1 has a nominal Zener voltage of 75 V with ±1% tolerance, as indicated by the "D" suffix in its nomenclature. This tight tolerance is achieved through post-process binning and verified during JANS-level screening. The 1% spec ensures predictable regulation in closed-loop feedback circuits where reference accuracy directly impacts system gain error.
Is JAN1N4131D-1 suitable for space applications?
Yes, JAN1N4131D-1 is inherently radiation-hard per Microsemi MicroNote 050 and qualified to JANS level per MIL-PRF-19500/435 - including full lot acceptance testing for total ionizing dose (TID) and single-event effects (SEE). Its metallurgically bonded DO-35 package and –65°C to +175°C junction rating make JAN1N4131D-1 appropriate for LEO and GEO satellite power subsystems.
What is the maximum reverse leakage current for JAN1N4131D-1?
JAN1N4131D-1 specifies a maximum reverse leakage current (IR) of 5.1 µA at 60 V reverse voltage and 25°C. This value is measured per MIL-PRF-19500/435 test method 301 and confirmed during JANS screening. At elevated temperatures, leakage increases predictably but remains below 100 µA up to 125°C ambient.
Does JAN1N4131D-1 require heatsinking in standard operation?
No, JAN1N4131D-1 does not require external heatsinking when operated within its 500 mW rated dissipation at lead temperature ≤50°C. Its RθJL of 250°C/W (measured at 3/8″ lead length) allows direct mounting on FR4 PCBs with 4 mm² copper pads. Derating begins linearly above 50°C lead temperature, reaching zero dissipation at 175°C.
How is polarity marked on JAN1N4131D-1?
JAN1N4131D-1 uses a single black band on the glass DO-35 body to indicate the cathode terminal. The banded end must be held at higher potential than the unbanded (anode) end for proper Zener regulation. Reversing polarity forward-biases the diode, resulting in ~1.1 V drop and loss of regulation - a critical check during board assembly verification.
JAN1N4131D-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):
- 75 V
- Tolerance:
- ±1%
- Power - Max:
- -
- 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
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JAN1N4131D-1 FAQ
1.How can I place an order for JAN1N4131D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4131D-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 JAN1N4131D-1 reliable?
The price and inventory of JAN1N4131D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4131D-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4131D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4131D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4131D-1?
JAN1N4131D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4131D-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 JAN1N4131D-1?
For technical support, including JAN1N4131D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4131D-1 requirements.
6.How does Aetrix verify that JAN1N4131D-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4131D-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 JAN1N4131D-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4131D-1?
All JAN1N4131D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4131D-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 JAN1N4131D-1 part is unused and in its original packaging.
Return procedure for JAN1N4131D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4131D-1 Tags
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