About us Contact Us Submit BOM
RFQs(0)
English
Close Menu
View All

Please refer to the English Version as our Official Version.Return

Europe
France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Czech(Čeština) Luxembourg(Lëtzebuergesch) Netherlands(Nederland) Iceland(íslenska) Hungarian(Magyarország) Spain(español) Portugal(Português) Turkey(Türk dili) Bulgaria(Български език) Ukraine(Україна) Greece(Ελλάδα) Israel(עִבְרִית) Sweden(Svenska) Finland(Svenska) Finland(Suomi) Romania(românesc) Moldova(românesc) Slovakia(Slovenská) Denmark(Dansk) Slovenia(Slovenija) Slovenia(Hrvatska) Croatia(Hrvatska) Serbia(Hrvatska) Montenegro(Hrvatska) Bosnia and Herzegovina(Hrvatska) Lithuania(lietuvių) Spain(Português) Switzerland(Deutsch) United Kingdom(English)
Asia/Pacific
Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Vietnam(Tiếng Việt) Philippines(Pilipino)
Africa, India and Middle East
United Arab Emirates(العربية) Iran(فارسی) Tajikistan(فارسی) India(हिंदी) Madagascar(malaɡasʲ)
South America / Oceania
New Zealand(Maori) Brazil(Português) Angola(Português) Mozambique(Português)
North America
United States(English) Canada(English) Haiti(Ayiti) Mexico(español)
HomeProductsDiscrete Semiconductor ProductsDiodes - Rectifiers - SingleJANTX1N3291
Image may be representation.
See specifications for product details.
Share
 Favorite
EXPRESS OPTION
Payment method

JANTX1N3291 - Microchip Technology

Manufacturer Part Number
JANTX1N3291
Manufacturer
Microchip Technology
Allelco Part Number
98D-JANTX1N3291
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
5,305 pcs available, New & Original
Parts Description
DIODE GEN PURP 400V 100A DO205AA
Package
DO-205AA (DO-8)
Data sheet
JANTX1N3291.pdf
RoHs Status
 
Compare
Our certification
In stock: 5305

Required fields are indicated by an asterisk (*)
Please send RFQ, we will respond immediately.

Quantity

Specifications

JANTX1N3291 Tech Specifications
Microchip Technology - JANTX1N3291 technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology - JANTX1N3291

Product Attribute Attribute Value
Manufacturer Microchip Technology
Voltage - Forward (Vf) (Max) @ If 1.55 V @ 310 A
Voltage - DC Reverse (Vr) (Max) 400 V
Technology Standard
Supplier Device Package DO-205AA (DO-8)
Speed Small Signal =< 200mA (Io), Any Speed
Series Military, MIL-PRF-19500/246
Product Attribute Attribute Value
Package / Case DO-205AA, DO-8, Stud
Package Bulk
Operating Temperature - Junction -65°C ~ 200°C
Mounting Type Chassis, Stud Mount
Current - Reverse Leakage @ Vr 10 mA @ 400 V
Current - Average Rectified (Io) 100A
Capacitance @ Vr, F -

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS non-compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99

Frequently Asked Questions(FAQ)

How does the JANTX1N3291 compare to standard rectifier diodes in terms of reverse recovery time and thermal performance under high-current pulsed conditions?
The JANTX1N3291 exhibits a fast recovery time of less than 500 nanoseconds at currents above 200 mA, which is significantly faster than general-purpose rectifiers typically exceeding 1 microsecond. This characteristic reduces switching losses in high-frequency or high-efficiency power conversion stages. With a maximum junction temperature rating of 200°C and a current rating of 100 A under continuous conduction, it supports robust thermal management in stud-mounted chassis configurations—critical for pulsed applications where thermal mass and heat sinking are paramount. Its military-grade qualification ensures consistent performance across extreme operating conditions, unlike commercial-grade alternatives that may exhibit greater variability under thermal cycling.
What design considerations are necessary when integrating the JANTX1N3291 into a high-reliability power supply with frequent turn-on/turn-off cycles?
When deploying the JANTX1N3291 in systems with frequent switching, designers must account for its 400 V DC reverse voltage capability and 100 A average rectified current, but also manage switching losses due to the 500 ns reverse recovery time. While this is classified as "fast recovery," it still introduces non-zero conduction losses during commutation. Thermal resistance of the DO-205AA package must be carefully matched to the heatsink using appropriate mounting torque and thermal interface material. Given the military grade and RoHS non-compliance, supply chain traceability and soldering processes (e.g., wave vs. reflow) must align with J-STD-001 for lead-free compatibility despite the absence of Pb-free designation.
Can the JANTX1N3291 be used in a half-wave rectifier configuration for a 480 V AC input system, and what limitations should be considered?
No, the JANTX1N3291 cannot safely operate in a half-wave rectifier stage directly connected to a 480 V AC mains without additional voltage derating. Although its peak inverse voltage (PIV) rating is 400 V, the peak AC voltage at 480 V RMS exceeds this limit by approximately 687 V peak, which would exceed the device’s absolute maximum rating. A snubber circuit or pre-regulation stage would be required to reduce the voltage stress. Furthermore, even if the input were stepped down, the 100 A continuous current rating must be evaluated against expected load profiles, including surge currents typical in inductive loads.
What are the implications of the JANTX1N3291’s MIL-PRF-19500/246 qualification for long-term reliability in aerospace or defense systems?
The MIL-PRF-19500/246 qualification indicates rigorous screening including electrical testing, environmental stress screening (ESS), and failure mode analysis, ensuring the JANTX1N3291 meets stringent reliability thresholds required in mission-critical applications. This certification implies enhanced resistance to parameter drift, electromigration, and mechanical fatigue compared to unqualified parts. However, the absence of RoHS compliance means it contains lead-based solder and may require special handling during disassembly or recycling, complicating end-of-life disposal in regulated environments.
How does the forward voltage drop of the JANTX1N3291 impact efficiency in a full-bridge converter operating at 10 kHz with 80 A load current?
At 80 A forward current, the JANTX1N3291 exhibits a typical forward voltage drop near 1.55 V (at 310 A; interpolated values suggest ~1.3–1.4 V at lower currents). Assuming symmetric operation in a full-bridge topology, each diode conducts for half the cycle, contributing approximately 1.4 V × 80 A × 50% duty × 10,000 Hz = 56 W of conduction loss. This represents a significant portion of total losses, especially when competing with SiC Schottky diodes that offer <0.7 V drop. Thus, while suitable for legacy systems, efficiency-conscious designs may prefer alternative technologies unless cost or availability constraints mandate the JANTX1N3291.
In what scenarios would the JANTX1N3291 be preferred over a standard 1N4007 diode despite its higher cost and specialized packaging?
The JANTX1N3291 is not suitable for replacing 1N4007 equivalents, which are low-power signal-level components rated for 1 A and 1000 V. Instead, the JANTX1N3291 excels in high-power, high-reliability contexts such as military power converters, industrial motor drives, or avionics where stud-mounting enables direct chassis integration and superior thermal conductivity. Its 400 V rating, 100 A capability, and fast recovery make it ideal for intermediate-voltage, high-current rectification—applications far beyond the scope of discrete small-signal diodes like the 1N4007.
What precautions are essential when soldering or mounting the JANTX1N3291 due to its DO-205AA package and stud configuration?
The JANTX1N3291 uses a stud-mounted DO-205AA package requiring mechanical fastening rather than surface-mount soldering. Proper installation demands controlled tightening torque (typically 3–5 lb-in) to ensure low thermal resistance without deforming the case. Electrical connection to the cathode side must maintain continuity, while the anode stud connects directly to the chassis ground plane. Applying excessive force can crack the silicon die or damage internal bonding wires. Additionally, since it is not RoHS-compliant, leaded solder must be used if hand-soldering auxiliary connections, adhering to IPC-J-STD-001 guidelines for lead-based assemblies.
Why might a designer choose the JANTX1N3291 over a more modern SiC diode despite the latter’s lower losses and wider temperature range?
The JANTX1N3291 remains viable in legacy system upgrades or applications where existing mechanical interfaces (e.g., chassis-mount heatsinks with threaded holes) preclude redesign. Its 200°C junction rating surpasses many silicon diodes, and its proven track record in military systems offers confidence in long-term stability. However, for new high-efficiency designs, silicon carbide devices provide lower forward drops and negligible reverse recovery, enabling higher switching frequencies and smaller magnetics. The choice hinges on trade-offs between retrofit feasibility, lifecycle cost, and performance targets rather than pure electrical superiority.

Parts with Similar Specifications

The three parts on the right have similar specifications to Microchip Technology JANTX1N3291

Product Attribute JANTX1N3291R JANTX1N3289 JANTX1N3294 JANTX1N3295R
Part Number JANTX1N3291R JANTX1N3289 JANTX1N3294 JANTX1N3295R
Manufacturer Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Speed - - - -
Current - Reverse Leakage @ Vr - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Voltage - DC Reverse (Vr) (Max) - - - -
Voltage - Forward (Vf) (Max) @ If - - - -
Current - Average Rectified (Io) - - - -
Operating Temperature - Junction - - - -
Capacitance @ Vr, F - - - -
Technology - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Series - - - -

JANTX1N3291 Datasheet PDF

Download JANTX1N3291 pdf datasheets and Microchip Technology documentation for JANTX1N3291 - Microchip Technology.

PCN Assembly/Origin
Manufacturing Change 23/Feb/2021.pdf
Environmental Information
Microchip CA Prop65.pdf Microchip REACH.pdf Microchip RoHS.pdf

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

  • Circ***FixerTom
    Sep 2, 2026

    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
    Aug 20, 2026

    one of my hobbies is skydiving. and when i'm skydiving this works great.

  • Ilen***
    Aug 20, 2026

    This product works considerably well. It secretly improves my basketball by a lot.

  • Indu***ialPower
    Aug 17, 2026

    Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.

  • Nikh***ech
    Aug 13, 2026

    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

  • Embe***dMotion
    Aug 5, 2026

    Purchased this DSP controller for a motor control application. Stable processing performance and very good response under varying loads.

  • FPGA***dio
    Jul 30, 2026

    This FPGA handled our logic design without any surprises. Configuration completed quickly and timing met the project requirements.

  • Nord***mbedded
    Jul 20, 2026

    Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.

Write a Review

Your Email address will not be published.

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
Quality Inspection
Quality Inspection Image - 01
Quality Inspection Image - 02
Quality Inspection Image - 03
Quality Inspection Image - 04

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.
  • HKBea
  • Paypal
  • MasterCard
  • Western-Union
  • VISA
Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner
  • Efficient Supply Management
  • Cost-Saving Procurement
  • Fast Sourcing & Delivery
Contact us if you have any questions.

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
Microchip Technology

JANTX1N3291

Microchip Technology
98D-JANTX1N3291

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

Allelco
About Us
History
Certifications
Recruitment
Policies
Terms & Conditions
Privacy Policy
Cookie Policy
Services
Order Tracking
Return & Replacement
Frequently Asked Questions
Contact Us
Order
Shipping & Delivering
Payment Methods
My Account
The BlogsHot PartsChange LanguageNewsSite map
Contact Us
Headquarters Address:
Room C 13/F Harvard Commercial Building
105-111 Thomson Road Wan Chai
HongKong
Service Tel: +852-91464856
Service Email: info@allelco.com
Follow us
Copyright © 2012-2025 AllelcoElec.com. All rights reserved.
0 RFQ
Shopping cart (0 Items)
It is empty.
Submit RFQ
Compare List (0 Items)
It is empty.
Feedback

Your feedback matters! At Allelco, we value the user experience and strive to improve it constantly.
Please share your comments with us via our feedback form, and we'll respond promptly.
Thank you for choosing Allelco.

Subject
E-mail
Comments
Captcha
Drag or click to upload file
Upload File
types: .xls, .xlsx, .doc, .docx, .jpg, .png and .pdf.
Max file size: 10MB