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Microchip Technology JANS1N4131D-1/TR
- Part No.:
- JANS1N4131D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4131D-1/TR.pdf
- Description:
- DIODE ZENER 75V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,780
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Product details
Overview
JANS1N4131D-1/TR from Microsemi is a 75 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability space and defense applications. It delivers stable voltage regulation at 250 mA test current with 700 Ω dynamic impedance and operates across –65 °C to +175 °C junction temperature.
For engineers reviewing the JANS1N4131D-1/TR datasheet, JANS1N4131D-1/TR pinout, JANS1N4131D-1/TR application, or JANS1N4131D-1/TR equivalent, key selection criteria include Zener voltage tolerance (1%), radiation hardness, hermetic DO-35 packaging, noise density (1 µV/√Hz), and MIL-qualified reliability level - all critical for precision reference and harsh-environment power regulation.
Technical Context
This device functions as a two-terminal voltage reference diode operating in reverse breakdown. Its metallurgical bond construction ensures low leakage (<0.01 µA at 60 V), minimal capacitance (~5.1 pF), and inherent radiation hardness per Microsemi MicroNote 050. The 1% voltage tolerance (denoted by "D" in nomenclature) and ±0.100 %/°C temperature coefficient support tight regulation in precision analog circuits.
Designed for operation at 250 mA Zener test current (IZT), it maintains 75 V nominal output with 700 Ω dynamic impedance (ZZT) and exhibits ultra-low noise density of 1 µV/√Hz - verified per Figure 1 test circuit using 1–3 kHz bandpass filtering at 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 75 V ±1% at 250 mA - enables precise voltage clamping or reference generation in regulated power supplies. |
| Power Dissipation | 500 mW at 25 °C - supports stable operation with linear derating to zero at 175 °C junction temperature. |
| Dynamic Impedance (ZZT) | 700 Ω at 250 mA - ensures minimal output voltage variation under load current changes. |
| Noise Density (ND) | 1 µV/√Hz - critical for low-noise analog references in instrumentation and signal conditioning. |
| Reverse Leakage (IR) | ≤0.01 µA at 60 V - guarantees negligible current draw in standby or high-impedance bias networks. |
| Temp. Coefficient (αVZ) | +0.100 %/°C - allows predictable voltage drift compensation in wide-temperature-range designs. |
| Junction Temp. Range | –65 °C to +175 °C - validated for aerospace, downhole, and military electronics requiring extreme thermal resilience. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package. Cathode indicated by color band; banded end must be held positive relative to anode for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential point in Zener bias network. |
| Cathode | Regulated output node | Delivers stable 75 V when reverse-biased; marked with visible band on glass body. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Meets highest reliability screening for spaceflight and nuclear-hardened systems. |
| Metallurgical bond construction | Eliminates interfacial voids, ensuring long-term stability and low parameter drift under thermal cycling. |
| Hermetic glass DO-35 package | Prevents moisture ingress and contamination, enabling >20-year shelf life and field reliability in humid environments. |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per Microsemi MicroNote 050 - no additional shielding required. |
| ESD immunity | Non-sensitive per MIL-STD-750 Method 1020 - survives handling without special ESD controls. |
Applications
| Spacecraft Power Regulation | Military Avionics Reference |
|---|---|
Use Scenario: Regulating auxiliary rail voltage in satellite power distribution units exposed to thermal vacuum and radiation. IC Role / Device Role / Timing Role: Two-terminal Zener reference providing 75 V clamp against transient overvoltage events. Use Value: JANS qualification and radiation hardness ensure uninterrupted operation without parameter shift after 100 krad(Si) exposure. | Use Scenario: Precision voltage reference in radar receiver front-end bias networks operating across –55 °C to +125 °C. IC Role / Device Role / Timing Role: Stable DC reference source for low-noise amplifier biasing and ADC reference scaling. Use Value: 1 µV/√Hz noise density and ±1% tolerance maintain SNR >85 dB in RF signal chains. |
| Nuclear Instrumentation | Downhole Telemetry Systems |
Use Scenario: High-stability reference in gamma spectroscopy pulse-height analyzers deployed in reactor containment zones. IC Role / Device Role / Timing Role: Zener-based voltage standard for energy calibration of scintillation detector outputs. Use Value: –65 °C to +175 °C junction range and hermetic sealing prevent calibration drift during thermal transients. | Use Scenario: Voltage clamping in high-temperature logging tools operating at 175 °C downhole ambient. IC Role / Device Role / Timing Role: Overvoltage protection element in switched-mode power converters feeding sensor interfaces. Use Value: Linear power derating to zero at 175 °C enables safe continuous operation without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4131D-1 | Same electrical specs and DO-35 package; qualified to JANTXV (not JANS) per MIL-PRF-19500/435. | Lacks full JANS-level screening (e.g., burn-in, lot acceptance testing); suitable for non-spaceflight defense programs. | Select when JANS-level radiation assurance and extended life testing are not required. |
| 1N4131DUR-1 | Surface-mount DO-213AA package; identical 75 V/1%/500 mW specs but no JANS qualification. | Enables automated assembly and smaller footprint; unsuitable for radiation-intensive or hermetic-reliability-critical use cases. | Select for commercial or industrial PCBs where RoHS compliance and SMT process compatibility outweigh mil-spec requirements. |
Compared with JANS1N4131D-1/TR, JANTXV1N4131D-1 offers reduced screening rigor but faster procurement, while 1N4131DUR-1 trades hermeticity and radiation hardness for SMT manufacturability - choice depends on mission-critical reliability vs. production efficiency trade-offs.
Availability
JANS1N4131D-1/TR is available at Aetrix Electronics and suitable for spacecraft power regulation, military avionics reference, and nuclear instrumentation requiring stable component supply with guaranteed traceability and long-term obsolescence management.
Supply support for JANS1N4131D-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, radiation-hardened, and aerospace-grade components.
The JANS1N4131D-1/TR belongs to Microsemi's legacy 1N4099–1N4135 Zener diode family, engineered specifically for precision voltage regulation in mission-critical defense, space, and nuclear systems where parameter stability under extreme stress is non-negotiable.
FAQ
What does the "D" suffix mean in JANS1N4131D-1/TR?
The "D" in JANS1N4131D-1/TR denotes ±1% Zener voltage tolerance at 250 mA test current, per JEDEC nomenclature. This tighter tolerance enables higher-accuracy voltage referencing than standard ±5% (blank suffix) or ±2% ("C") variants. JANS1N4131D-1/TR achieves this via enhanced process control and post-trim screening during JANS qualification.
Is JANS1N4131D-1/TR compatible with lead-free soldering processes?
JANS1N4131D-1/TR uses tin-lead plating per MIL-STD-750 Method 2026 and is rated for 10 s at 260 °C solder temperature. While RoHS-compliant versions exist (e.g., commercial e3 variants), JANS1N4131D-1/TR itself is not RoHS-compliant and requires tin-lead solder profile. Use with lead-free processes may risk intermetallic degradation unless validated per J-STD-020.
How is the 75 V Zener voltage of JANS1N4131D-1/TR verified during JANS qualification?
JANS1N4131D-1/TR undergoes parametric testing at 250 mA IZT per MIL-PRF-19500/435, including lot acceptance tests for VZ, ZZT, IR, and αVZ across temperature extremes. Each unit is screened for parameter stability after thermal cycling (–65 °C to +175 °C, 500 cycles) and burn-in (168 h at 125 °C), ensuring JANS1N4131D-1/TR meets its 75 V ±1% specification throughout life.
Does JANS1N4131D-1/TR require heatsinking in typical applications?
No heatsink is required for JANS1N4131D-1/TR at ≤500 mW dissipation and lead temperature ≤50 °C. Its RθJL = 250 °C/W (at 10 mm lead length) allows direct mounting on FR4 PCBs with 4 mm² copper pads. Derating begins linearly above 50 °C lead temp, reaching zero power at 175 °C - consistent with JANS1N4131D-1/TR's specified thermal limits.
Can JANS1N4131D-1/TR be used as a voltage reference in ADC circuits?
Yes - JANS1N4131D-1/TR's 1 µV/√Hz noise density, ±1% tolerance, and <0.01 µA leakage make it suitable as a precision reference for 16-bit+ ADCs in radiation-hardened systems. However, its +0.100 %/°C temperature coefficient requires external compensation or calibration in applications demanding <0.01% drift over –55 °C to +125 °C. JANS1N4131D-1/TR is commonly paired with low-drift op-amps in buffered reference designs.
JANS1N4131D-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:
- ±1%
- 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)
JANS1N4131D-1/TR FAQ
1.How can I place an order for JANS1N4131D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4131D-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 JANS1N4131D-1/TR reliable?
The price and inventory of JANS1N4131D-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 JANS1N4131D-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4131D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4131D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4131D-1/TR?
JANS1N4131D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4131D-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 JANS1N4131D-1/TR?
For technical support, including JANS1N4131D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4131D-1/TR requirements.
6.How does Aetrix verify that JANS1N4131D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4131D-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 JANS1N4131D-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4131D-1/TR?
All JANS1N4131D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4131D-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 JANS1N4131D-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4131D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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