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Microchip Technology JANTX1N4131-1
- Part No.:
- JANTX1N4131-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4131-1.pdf
- Description:
- DIODE ZENER 75V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,388
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Product details
Overview
JANTX1N4131-1 from Microsemi is a 500 mW, 75 V, ±5% tolerance metallurgically bonded glass Zener diode in DO-35 package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTX1N4131-1 datasheet, JANTX1N4131-1 pinout, JANTX1N4131-1 application, or JANTX1N4131-1 equivalent, key selection factors include its 75 V nominal Zener voltage at 250 mA test current, 700 Ω maximum dynamic impedance, 0.01 µA maximum reverse leakage at 60 V, radiation-hardened construction, and hermetically sealed axial-leaded package.
Technical Context
This device operates as a precision shunt voltage regulator with a specified Zener voltage of 75 V at IZT = 250 mA, exhibiting a temperature coefficient of +0.100 %/°C and noise density ≤1 µV/√Hz below 6.8 V (per family characterization). Its metallurgical bond ensures stable breakdown characteristics under thermal cycling and mechanical stress.
The JANTX1N4131-1 is rated for 500 mW average power dissipation at TL = 25 °C, derating linearly to zero at 175 °C, with RθJL = 250 °C/W and RθJA = 300 °C/W on standard FR4 board. It maintains <0.01 µA reverse current at VR = 60 V and exhibits minimal capacitance per typical Zener-voltage trend.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 75 V at 250 mA test current - defines regulated output voltage under standard bias conditions |
| Zener Voltage Tolerance | ±5% - sets absolute accuracy band for voltage reference applications |
| Max Dynamic Impedance | 700 Ω at 250 mA - determines regulation stiffness and load-induced voltage deviation |
| Max Reverse Leakage | 0.01 µA at 60 V - ensures low standby power loss in high-impedance bias networks |
| Power Dissipation | 500 mW at 25 °C lead temperature - establishes thermal design margin before derating begins |
| Temp Coefficient αVZ | +0.100 %/°C - quantifies voltage drift over operating temperature range |
| Junction Temp Range | –65 to +175 °C - enables operation in extreme environmental conditions without parametric shift |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by color band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to circuit ground or lower-potential rail during regulation; defines polarity for proper biasing |
| Cathode (banded end) | Zener breakdown terminal / regulation output node | Connected to unregulated input; reverse-biased to maintain stable 75 V reference across load |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Ensures long-term stability of Zener voltage under thermal cycling and vibration stress |
| MIL-PRF-19500/435 JANTX qualification | Validates reliability for aerospace and defense systems requiring screened high-reliability components |
| Hermetically sealed glass package | Prevents moisture ingress and parameter drift in humid or corrosive environments |
| Radiation hardness | Inherently resistant to total ionizing dose effects per Microsemi MicroNote 050 |
| Low noise density | ≤1 µV/√Hz at low voltages - supports use in precision analog reference and sensing circuits |
Applications
| Avionics Power Regulation | Satellite DC-DC Reference |
|---|---|
Use Scenario: Regulating auxiliary 75 V bus in airborne radar power distribution units. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable bias for high-side gate drivers and op-amp comparators. Use Value: Maintains ±5% regulation across –55 to +125 °C ambient while surviving MIL-STD-810 shock/vibe profiles. | Use Scenario: Setting precise feedback threshold in radiation-tolerant isolated DC-DC converters onboard LEO satellites. IC Role / Device Role / Timing Role: Primary Zener reference in error amplifier loop ensuring output voltage accuracy under TID exposure. Use Value: Delivers stable 75 V reference with no parametric shift after 100 krad(Si) total dose per MicroNote 050. |
| Ground Vehicle ECU Protection | Tactical Radio Bias Supply |
Use Scenario: Clamping transient overvoltage on 72 V battery-fed control logic in armored vehicle ECUs. IC Role / Device Role / Timing Role: Transient voltage suppressor and precision clamp protecting 3.3 V microcontroller inputs via resistive divider. Use Value: Limits fault voltage to ≤75 V with <0.01 µA leakage, preserving signal integrity during ISO 7637-2 pulse 5a events. | Use Scenario: Generating stable local bias for RF front-end LNAs and mixers in manpack radios operating from 28 V primary supply. IC Role / Device Role / Timing Role: Low-noise Zener reference supplying clean 75 V for GaN HEMT drain bias sequencing. Use Value: Provides ≤1 µV/√Hz noise floor critical for sub-1 dB NF preservation in 2–6 GHz receive chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4131US | Same 75 V Zener voltage and DO-35 package but commercial-grade (non-mil-qualified); RoHS compliant e3 marking available | Lacks JANTX screening, radiation hardness validation, and extended temp qualification - suitable only for non-critical industrial use | Select when cost sensitivity outweighs reliability requirements and MIL-PRF-19500 compliance is not mandated |
| JANTXV1N4131-1 | Identical electrical specs but qualified to JANTXV level per MIL-PRF-19500/435 - includes additional burn-in, life test, and lot acceptance testing | Required for mission-critical flight hardware where failure modes must be statistically bounded per DoD standards | Select when system-level FMEA mandates enhanced screening beyond JANTX for launch-vehicle or manned-platform applications |
Compared with JANTX1N4131-1, 1N4131US offers lower cost and RoHS compliance but no military qualification or radiation assurance, while JANTXV1N4131-1 adds rigorous screening for ultra-high-reliability deployment - choice depends strictly on program-level reliability and certification requirements.
Availability
JANTX1N4131-1 is available at Aetrix Electronics and suitable for avionics power regulation, satellite DC-DC reference, and tactical radio bias supply requiring stable component supply across extended temperature ranges and radiation environments.
Supply support for JANTX1N4131-1 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 JANTX1N4131-1 belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, engineered specifically for precision voltage regulation in harsh-environment electronic systems where parametric stability and long-term reliability are non-negotiable.
FAQ
What is the Zener voltage tolerance for JANTX1N4131-1?
JANTX1N4131-1 has a nominal Zener voltage of 75 V with a ±5% tolerance, meaning the actual measured voltage at 250 mA test current falls between 71.25 V and 78.75 V under standard 25 °C conditions. This tolerance is inherent to the JAN/JANTX-level qualification and applies across the full operating temperature range unless otherwise specified in derating curves.
Is JANTX1N4131-1 radiation hardened?
Yes, JANTX1N4131-1 is inherently radiation hard per Microsemi MicroNote 050 due to its metallurgically bonded glass construction and DO-35 package design. It has been characterized for total ionizing dose (TID) resilience and is routinely deployed in space-qualified power systems where radiation-induced parameter shift must be minimized.
What is the maximum reverse leakage current for JANTX1N4131-1?
JANTX1N4131-1 specifies a maximum reverse leakage current (IR) of 0.01 µA at VR = 60 V and 25 °C. This ultra-low leakage supports high-impedance bias networks and precision reference applications where standby current must remain negligible across wide temperature excursions.
Does JANTX1N4131-1 have RoHS compliance?
No - JANTX1N4131-1 is a military-grade part with tin-lead plating per MIL-STD-750 and is not RoHS compliant. RoHS-compliant versions (e.g., 1N4131-1e3) exist only in commercial-grade variants (1N4131-1), not in JANTX or higher reliability levels.
What is the thermal resistance from junction to lead for JANTX1N4131-1?
JANTX1N4131-1 has a thermal resistance of RθJL = 250 °C/W when measured with 3/8 inch (10 mm) lead length from body, per MIL-PRF-19500/435 test conditions. This value is critical for calculating junction temperature rise under load and must be used with actual lead temperature measurements rather than ambient assumptions.
JANTX1N4131-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 75 V
- Tolerance:
- ±5%
- 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
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANTX1N4131-1 FAQ
1.How can I place an order for JANTX1N4131-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4131-1 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 JANTX1N4131-1 reliable?
The price and inventory of JANTX1N4131-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4131-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4131-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4131-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4131-1?
JANTX1N4131-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4131-1 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 JANTX1N4131-1?
For technical support, including JANTX1N4131-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4131-1 requirements.
6.How does Aetrix verify that JANTX1N4131-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4131-1 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 JANTX1N4131-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4131-1?
All JANTX1N4131-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4131-1, 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 JANTX1N4131-1 part is unused and in its original packaging.
Return procedure for JANTX1N4131-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4131-1 Tags
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