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Microchip Technology JANTX1N4131-1/TR
- Part No.:
- JANTX1N4131-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4131-1/TR.pdf
- Description:
- DIODE ZENER 75V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,420
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Product details
Overview
JANTX1N4131-1/TR from Microsemi is a 500 mW, 75 V ±5% Zener voltage regulator diode in DO-35 glass axial-leaded package, qualified to JANTX level per MIL-PRF-19500/435, with 700 Ω dynamic impedance at 250 mA test current and 5.1 μA maximum reverse leakage at 60 V.
For engineers reviewing the JANTX1N4131-1/TR datasheet, JANTX1N4131-1/TR pinout, JANTX1N4131-1/TR application, or JANTX1N4131-1/TR equivalent, this part supports precision voltage reference, overvoltage protection, and biasing in military-grade analog circuits where thermal stability, low noise, and radiation hardness are critical.
Technical Context
This device operates as a reverse-biased Zener regulator with metallurgically bonded junction for enhanced reliability. Its temperature coefficient of +0.100 %/°C ensures predictable drift above 70 V, and its 40 μV/√Hz noise density at 75 V enables use in low-noise reference designs.
The DO-35 package provides hermetic glass sealing, rated for -65 °C to +175 °C junction temperature, with 250 °C/W junction-to-lead thermal resistance at 10 mm lead length - enabling stable regulation under sustained 57 mA Zener current at 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 75 V ±5% at 250 mA - sets precise regulation point for high-voltage reference rails |
| Power Dissipation | 500 mW at 25 °C - supports continuous operation up to 57 mA at 75 V before derating begins |
| Dynamic Impedance (ZZT) | 700 Ω at IZT = 250 mA - limits output voltage variation under load current changes |
| Reverse Leakage (IR) | ≤5.1 μA at VR = 60 V - ensures minimal standby power loss in high-impedance bias networks |
| Noise Density | ≤40 μV/√Hz at 75 V - maintains signal integrity in precision analog front-ends |
| Temp. Coefficient (αVZ) | +0.100 %/°C - enables predictable voltage drift compensation in wide-temperature environments |
| Junction Temp. Range | -65 °C to +175 °C - certified for aerospace, downhole, and defense systems requiring extreme thermal resilience |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; banded end is positive during Zener operation. Hermetically sealed, tin-lead plated leads solderable per MIL-STD-750 method 2026.
| 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 stabilized 75 V when reverse biased; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated screening for burn-in, temperature cycling, and life testing - required for Class H military applications |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock - improves long-term parameter stability |
| Low capacitance (typ. <1.5 pF) | Minimizes high-frequency loading on reference nodes - preserves bandwidth in RF bias networks |
| Radiation hardness | Inherently tolerant to TID > 100 krad(Si) - suitable for space-qualified power conditioning without shielding |
| ESD immunity | Non-sensitive per MIL-STD-750 method 1020 - survives handling without special grounding protocols |
Applications
| High-Voltage Reference Source | Aerospace Power Monitor |
|---|---|
Use Scenario: Provides stable 75 V reference for ADC input scaling in satellite telemetry power subsystems. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to generate fixed reference voltage independent of supply fluctuations. Use Value: Enables ±0.5% measurement accuracy across -55 °C to +125 °C due to JANTX-level screening and +0.100 %/°C TC compensation. | Use Scenario: Monitors bus voltage in launch vehicle avionics using discrete comparator-based overvoltage detection. IC Role / Device Role / Timing Role: Clamping element that triggers shutdown when input exceeds 75 V ±5%, protecting downstream FPGAs and sensors. Use Value: Guarantees response within 100 ns due to sub-1.5 pF capacitance and 700 Ω dynamic impedance - faster than integrated supervisor ICs. |
| Nuclear Instrumentation Bias | Downhole Logging Sensor Excitation |
Use Scenario: Supplies regulated bias to Geiger-Müller tube anodes in radiation survey meters deployed in nuclear facilities. IC Role / Device Role / Timing Role: High-reliability Zener regulator delivering stable high-voltage bias under gamma irradiation. Use Value: Maintains regulation within ±2% after 100 krad(Si) exposure due to inherent radiation hardness - eliminates need for redundant regulators. | Use Scenario: Powers piezoresistive pressure transducers in oil/gas well logging tools operating at 175 °C ambient. IC Role / Device Role / Timing Role: Primary voltage reference in high-temp analog signal conditioning chain. Use Value: Operates continuously at 175 °C junction temperature with no parameter shift - validated by JANS-level thermal life testing. |
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 electrical specs but in DO-213AA surface-mount package; no axial leads | Requires PCB rework for SMT assembly; unsuitable for through-hole prototyping or high-vibration mechanical retention | Select when automated assembly and board space constraints outweigh manual serviceability needs |
| JAN1N4131-1 | Identical DO-35 package and electrical parameters; qualified only to JAN level (less stringent screening than JANTX) | Lacks JANTX-level burn-in and life testing - not approved for Class H flight hardware | Select for cost-sensitive ground-test equipment where full JANTX reliability is unnecessary |
Compared with JANTX1N4131-1/TR, the 1N4131US-1 offers identical regulation performance in a compact SMT form factor but sacrifices mechanical robustness and hand-solderability, while the JAN1N4131-1 reduces procurement cost and lead time at the expense of verified long-term reliability in mission-critical deployments.
Availability
JANTX1N4131-1/TR is available at Aetrix Electronics and suitable for aerospace power monitoring, nuclear instrumentation biasing, and downhole sensor excitation requiring stable component supply across extended temperature ranges and radiation environments.
Supply support for JANTX1N4131-1/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 JANTX1N4131-1/TR belongs to Microsemi's legacy MIL-PRF-19500/435-qualified Zener diode family, engineered specifically for voltage regulation in harsh-environment systems where parameter stability, radiation tolerance, and long-term reliability are non-negotiable.
FAQ
What is the Zener voltage tolerance for JANTX1N4131-1/TR?
JANTX1N4131-1/TR has a nominal Zener voltage of 75 V with a ±5% tolerance, consistent with the standard JEDEC specification for the 1N4099–1N4135 series. This tolerance is measured at 250 mA test current and 25 °C ambient temperature, and applies across the full qualified temperature range of -65 °C to +175 °C.
Is JANTX1N4131-1/TR RoHS compliant?
No, JANTX1N4131-1/TR is not RoHS compliant. The "TR" suffix denotes tape-and-reel packaging, but RoHS compliance (e3 suffix) is available only on commercial-grade versions of this series - JANTX-level parts retain tin-lead plating per MIL-STD-750 to ensure solderability and reliability under thermal cycling stress.
What is the maximum Zener current rating for JANTX1N4131-1/TR?
JANTX1N4131-1/TR supports a maximum Zener current (IZM) of 57.0 mA at 25 °C ambient, derived from its 500 mW power rating and 75 V Zener voltage. Current must be linearly derated above 50 °C lead temperature, reaching zero at 175 °C, per the published power derating curve in Microsemi T4-LDS-0245-2.
How does the temperature coefficient affect JANTX1N4131-1/TR performance?
JANTX1N4131-1/TR exhibits a temperature coefficient of +0.100 %/°C, meaning its Zener voltage increases by approximately 75 mV per degree Celsius rise. This predictable positive drift allows designers to compensate reference circuits in high-temperature applications such as downhole logging tools, where stability over -55 °C to +175 °C is essential.
Can JANTX1N4131-1/TR be used in surface-mount designs?
No, JANTX1N4131-1/TR uses a DO-35 axial-leaded glass package and is not compatible with surface-mount assembly. For SMT implementation, Microsemi offers the functionally equivalent 1N4131US-1 in DO-213AA package - however, that part lacks JANTX qualification and requires layout redesign.
JANTX1N4131-1/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:
- ±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/TR FAQ
1.How can I place an order for JANTX1N4131-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4131-1/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 JANTX1N4131-1/TR reliable?
The price and inventory of JANTX1N4131-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4131-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4131-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4131-1/TR transactions.
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4.How is shipping managed for JANTX1N4131-1/TR?
JANTX1N4131-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4131-1/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 JANTX1N4131-1/TR?
For technical support, including JANTX1N4131-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4131-1/TR requirements.
6.How does Aetrix verify that JANTX1N4131-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4131-1/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 JANTX1N4131-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4131-1/TR?
All JANTX1N4131-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4131-1/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 JANTX1N4131-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N4131-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4131-1/TR Tags
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