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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Semtech Corporation JANTX1N5809US

Name: JANTX1N5809US
Brand: Semtech Corporation
SKU: JANTX1N5809US
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: JANTX1N5809US

Manufacturer:: Semtech Corporation

Category:: Single Diodes

Package:: SQ-MELF

Datasheet:: JANTX1N5809US.pdf

Description:: DIODE GEN PURP 100V 6A

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Product details

Overview

JANTX1N5809US from Microsemi (now Microchip) is a hermetically sealed, axial-lead, silicon power rectifier diode rated for 100V PIV, 3A average forward current, and 50A non-repetitive peak surge current. It features low forward voltage drop (1.1V at 3A), fast recovery time (≤500ns), and operates across -65°C to +175°C. It is used in high-reliability military and aerospace DC power supplies, EMI-filtered front-end rectification, and avionics power conditioning.

For engineers reviewing the JANTX1N5809US datasheet, pinout, applications, or equivalent options, key selection criteria include its MIL-PRF-19500/417 qualification, hermetic TO-204AA (DO-201AD) package, 100V reverse standoff, 3A thermal-limited DC output capability, and suitability for high-temperature, radiation-tolerant, and long-lifecycle systems where commercial-grade alternatives are disqualified.

Technical Context

The JANTX1N5809US is a standard recovery (non-fast, non-ultrafast) silicon rectifier optimized for robustness over speed - its ≤500ns reverse recovery time balances switching loss and ruggedness in line-frequency (50/60Hz) and low-kHz SMPS front-end applications. Its 50A non-repetitive surge rating supports capacitor-input filter inrush limiting without derating.

Designed to MIL-PRF-19500/417 Class B requirements, it undergoes 100% screening including burn-in, temperature cycling, and hermeticity testing. Its TO-204AA metal case provides direct thermal conduction to heatsinks and EMI shielding, critical for avionics and radar power subsystems.

Key Specifications

Parameter	Value and Actual Design Meaning
PIV / V_RWM	100 V - Maximum reverse voltage before breakdown; sets safe operating margin for 28V or 44V nominal DC bus designs with transient headroom.
I_F(AV)	3 A - Continuous DC forward current at T_C = 75°C; defines steady-state power delivery capacity with external heatsinking.
I_FSM	50 A - Non-repetitive peak surge current (8.3ms sine half-cycle); enables reliable startup into large input capacitors.
V_F @ 3A	1.1 V - Forward voltage drop at rated DC current; determines conduction loss (3.3W) and thermal design baseline.
t_rr	≤500 ns - Reverse recovery time; limits switching losses in low-frequency converters and ensures compatibility with legacy SCR/thyristor gate drive timing.
Operating Temp	-65°C to +175°C - Full military temperature range; supports operation in jet engine bays, satellite power units, and downhole tools.
Package	TO-204AA (DO-201AD) - Hermetically sealed metal can with axial leads; provides mechanical ruggedness, thermal mass, and EMI containment.

Pinout & Package

Package: TO-204AA (DO-201AD), hermetically sealed metal case with axial leads. Cathode identified by band marking on body.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Input terminal for forward conduction	Connected to AC source or transformer secondary; must withstand full surge current and reverse voltage stress.
Cathode (Lead 2)	Output terminal for forward conduction	Connected to bulk capacitor or downstream regulator; carries full load current and defines reference node for filtering.

Key Features

Feature	Design Value
MIL-PRF-19500/417 Class B qualified	100% lot acceptance testing (LAT), burn-in, and hermeticity verification - ensures reliability in mission-critical defense platforms.
Hermetic TO-204AA metal package	Zero moisture ingress and superior thermal conductivity vs. plastic packages - eliminates corrosion risk and enables direct heatsink mounting.
175°C maximum junction temperature	Enables operation in uncooled or conduction-cooled enclosures where ambient exceeds 125°C, e.g., airborne power converters.
50A surge rating (8.3ms)	Supports >10× rated current for cold-start conditions without degradation - eliminates need for external NTC thermistors or inrush limiters.
Low leakage (<5 μA @ 100V, 125°C)	Minimizes standby power loss and prevents false triggering in high-impedance bias networks or sensing circuits.

Applications

Aerospace Power Supplies	Avionics DC-DC Front Ends
Use Scenario: Rectifying 115VAC 400Hz aircraft generator output in Line Replaceable Units (LRUs). IC Role / Device Role / Timing Role: Primary AC-to-DC conversion element in full-wave bridge configuration; handles continuous 3A load and 50A inrush surges. Use Value: Hermetic seal and -65°C to +175°C rating ensure uninterrupted operation during rapid cabin depressurization and engine bay thermal transients.	Use Scenario: Input rectification for 28VDC distributed power architecture in flight control computers. IC Role / Device Role / Timing Role: High-reliability rectifier feeding bulk capacitor and isolated DC-DC modules; operates continuously at 75°C case temperature. Use Value: MIL-qualified screening and 100% burn-in eliminate infant mortality in safety-critical avionics, reducing field failure rates to <10 FIT.
Tactical Vehicle Power Systems	Ground-Based Radar PSUs
Use Scenario: 24V/28V vehicle electrical system rectification in armored command vehicles exposed to wide ambient swings (-40°C to +85°C under hood). IC Role / Device Role / Timing Role: Main rectifier in dual-generator redundancy setup; sustains 3A DC output while surviving 50A load dump transients. Use Value: TO-204AA metal case dissipates heat via chassis mount, eliminating need for PCB-mounted heatsinks in space-constrained mobile platforms.	Use Scenario: High-voltage DC supply rectification (±100V rails) for transmitter modulator stages in S-band radar transceivers. IC Role / Device Role / Timing Role: Surge-tolerant rectifier handling repetitive 50A pulses during radar pulse transmission cycles. Use Value: 175°C junction rating allows operation adjacent to high-power RF amplifiers without thermal derating or forced air cooling.

Aerospace Power Supplies

Avionics DC-DC Front Ends

Use Scenario: Rectifying 115VAC 400Hz aircraft generator output in Line Replaceable Units (LRUs).

IC Role / Device Role / Timing Role: Primary AC-to-DC conversion element in full-wave bridge configuration; handles continuous 3A load and 50A inrush surges.

Use Value: Hermetic seal and -65°C to +175°C rating ensure uninterrupted operation during rapid cabin depressurization and engine bay thermal transients.

Use Scenario: Input rectification for 28VDC distributed power architecture in flight control computers.

IC Role / Device Role / Timing Role: High-reliability rectifier feeding bulk capacitor and isolated DC-DC modules; operates continuously at 75°C case temperature.

Use Value: MIL-qualified screening and 100% burn-in eliminate infant mortality in safety-critical avionics, reducing field failure rates to <10 FIT.

Tactical Vehicle Power Systems

Ground-Based Radar PSUs

Use Scenario: 24V/28V vehicle electrical system rectification in armored command vehicles exposed to wide ambient swings (-40°C to +85°C under hood).

IC Role / Device Role / Timing Role: Main rectifier in dual-generator redundancy setup; sustains 3A DC output while surviving 50A load dump transients.

Use Value: TO-204AA metal case dissipates heat via chassis mount, eliminating need for PCB-mounted heatsinks in space-constrained mobile platforms.

Use Scenario: High-voltage DC supply rectification (±100V rails) for transmitter modulator stages in S-band radar transceivers.

IC Role / Device Role / Timing Role: Surge-tolerant rectifier handling repetitive 50A pulses during radar pulse transmission cycles.

Use Value: 175°C junction rating allows operation adjacent to high-power RF amplifiers without thermal derating or forced air cooling.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-reliability rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
JANTXV1N5809US	Same die and package, but Class V (enhanced screening): 100% life test, radiation hardness assurance (100 krad(Si)), and extended temperature validation.	Required for nuclear-hardened systems, space-qualified payloads, and strategic missile guidance electronics.	Select JANTXV1N5809US only when radiation tolerance or zero-failure probability over 15+ year missions is mandated.
1N5809 (commercial)	Same electrical specs but plastic DO-201AD package, no MIL screening, -65°C to +125°C rating, and no hermetic seal.	Suitable for industrial bench power supplies or non-safety-critical embedded systems with controlled environments.	Use 1N5809 only in cost-sensitive, non-military applications where MIL-qualified reliability and extended temperature range are not required.

Compared with JANTX1N5809US, JANTXV1N5809US adds radiation hardening and lifetime testing for space/nuclear use, while 1N5809 sacrifices hermeticity and screening for lower cost and higher volume availability - making JANTX1N5809US the optimal balance of ruggedness, qualification, and deployability in tactical and aviation systems.

Availability

JANTX1N5809US is available at Aetrix Electronics and suitable for aerospace power supplies, avionics DC-DC front ends, and tactical vehicle power systems requiring stable component supply under ITAR-controlled logistics and long-term obsolescence management.

Supply support for JANTX1N5809US 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 (acquired by Microchip Technology in 2018) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal ICs, discretes, and RF solutions for defense, aerospace, and industrial markets.

The JANTX1N5809US belongs to Microsemi's MIL-PRF-19500/417 qualified discrete diode family, engineered specifically for mission-critical power conversion where failure is not an option - emphasizing hermeticity, temperature resilience, and process-controlled reliability.

FAQ

What is the maximum junction temperature rating for JANTX1N5809US?

The JANTX1N5809US has a maximum junction temperature of +175°C, verified per MIL-PRF-19500/417 test requirements. This allows sustained operation in high-ambient environments such as jet engine bays or sealed avionics enclosures. Derating curves in the official Microchip datasheet define allowable current versus case temperature, and JANTX1N5809US maintains full 3A I_F(AV) capability up to T_C = 75°C with appropriate heatsinking.

Is JANTX1N5809US hermetically sealed, and why does that matter?

Yes, JANTX1N5809US uses a hermetically sealed TO-204AA (DO-201AD) metal package, confirmed by MIL-STD-883 Method 1014 testing. Hermeticity prevents moisture ingress and internal corrosion - critical for 20+ year field deployments in humid, salt-laden, or vacuum environments. Unlike plastic-packaged equivalents, JANTX1N5809US avoids parameter drift and latent failure mechanisms caused by humidity-induced leakage or bond wire oxidation.

Does JANTX1N5809US meet MIL-PRF-19500/417 Class B requirements?

Yes, JANTX1N5809US is fully qualified to MIL-PRF-19500/417 Class B, including 100% lot acceptance testing (LAT), steady-state burn-in, temperature cycling, and hermeticity verification. Each lot receives a certified manufacturer's test report (MTR) traceable to MIL-STD-1580 and MIL-STD-750. This qualification is mandatory for inclusion in DoD-accredited hardware configurations and ensures compliance with DSCC-approved QML lists.

What is the reverse recovery time (t_rr) of JANTX1N5809US, and how does it affect circuit performance?

JANTX1N5809US has a reverse recovery time of ≤500 ns, measured per MIL-STD-750 Method 3020. This value is optimized for line-frequency and low-kHz switching applications - minimizing turn-off losses in transformer-coupled rectifiers while maintaining ruggedness against voltage overshoot. In contrast to ultrafast diodes, its moderate t_rr reduces EMI generation and improves stability in legacy analog power supplies where fast diodes cause ringing or gate drive coupling.

Can JANTX1N5809US replace commercial 1N5809 diodes in existing designs?

JANTX1N5809US is electrically compatible with commercial 1N5809 diodes (same V_RRM, I_F(AV), V_F, and t_rr specs), but its TO-204AA package requires mechanical redesign: lead spacing differs, and the metal case demands isolation from PCB ground planes. Direct substitution is not recommended without verifying thermal path, creepage/clearance, and mounting hardware. JANTX1N5809US should be integrated as a reliability upgrade - not a drop-in replacement - in new or requalified designs.

JANTX1N5809US Specifications

Product attributes: Attribute value

Manufacturer:: Semtech Corporation

Series:: -

Package/Case:: SQ-MELF

Packaging:: Bulk

Product Status:: Discontinued at Digi-Key

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 100 V

Current - Average Rectified (Io):: 6A

Voltage - Forward (Vf) (Max) @ If:: 875 mV @ 4 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 30 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 100 V

Capacitance @ Vr, F:: 60pF @ 5V, 1MHz

Grade:: Military

Qualification:: MIL-PRF-19500/477

Mounting Type:: Surface Mount

Supplier Device Package:: -

Operating Temperature - Junction:: -

JANTX1N5809US FAQ

1.How can I place an order for JANTX1N5809US through Aetrix?

Please submit a Request for Quotation (RFQ) for JANTX1N5809US 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 JANTX1N5809US reliable?

The price and inventory of JANTX1N5809US are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N5809US is usually 5 days.

3.What payment methods are accepted for JANTX1N5809US?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N5809US transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for JANTX1N5809US?

JANTX1N5809US orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your JANTX1N5809US 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 JANTX1N5809US?

For technical support, including JANTX1N5809US datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N5809US requirements.

6.How does Aetrix verify that JANTX1N5809US is sourced from the original manufacturer or authorized distributors?

All JANTX1N5809US 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 JANTX1N5809US meets industry standards.

7.What is the process for return or replacement of JANTX1N5809US?

All JANTX1N5809US units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N5809US, 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 JANTX1N5809US part is unused and in its original packaging.

Return procedure for JANTX1N5809US:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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