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Semtech Corporation JANS1N5420.TR
- Part No.:
- JANS1N5420.TR
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Axial
- Datasheet:
-
JANS1N5420.TR.pdf
- Description:
- DIODE GEN PURP 600V 4.5A AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:6,543
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Product details
Overview
JANS1N5420.TR from Microsemi (now part of Microchip Technology) is a hermetically sealed, military-grade silicon junction diode configured as a 200V, 3A axial-leaded rectifier with low forward voltage drop (1.1V at 3A), high surge current capability (80A peak), and operating temperature range of −65°C to +175°C - designed for high-reliability power conversion in aerospace, defense, and radiation-hardened systems.
For engineers reviewing the JANS1N5420.TR datasheet, pinout, applications, or equivalent options, key selection criteria include its MIL-PRF-19500/417 qualification, hermetic TO-204AA (DO-201AD) package, reverse recovery time (trr ≤ 2.0 µs), leakage current (IR ≤ 5 µA at 200V), and compliance with JAN/JANTX/JANS screening levels for space-qualified power supplies and avionics DC-DC converters.
Technical Context
This diode operates as a fast-recovery power rectifier with a PN junction structure optimized for low conduction loss and controlled switching behavior. Its trr ≤ 2.0 µs and soft recovery characteristic minimize EMI generation in high-frequency switching topologies such as forward and flyback converters used in MIL-STD-704 aircraft power systems.
The device is fully characterized per MIL-PRF-19500 requirements including burn-in, thermal shock (−65°C to +150°C, 5 cycles), and life test (1000 hrs at 175°C). Its hermetic metal-glass TO-204AA package ensures long-term reliability under humidity, salt fog, and vacuum conditions typical of launch vehicle and satellite power subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Repetitive Reverse Voltage | 200 V - supports input rectification up to 141 V RMS AC or 200 V DC bus without breakdown |
| Average Forward Current | 3 A - enables continuous operation in 24–48 V output, 50–100 W power supplies |
| Forward Voltage Drop | 1.1 V at 3 A - reduces conduction loss to ~3.3 W, easing thermal design in sealed enclosures |
| Peak Forward Surge Current | 80 A (1 cycle, 60 Hz) - withstands inrush currents during cold-start of military-grade SMPS |
| Reverse Recovery Time | ≤ 2.0 µs - limits switching losses and ringing in 100–500 kHz DC-DC stages |
| Operating Temperature Range | −65°C to +175°C - qualified for engine bay, radar transmitter, and orbital electronics environments |
| Qualification Standard | MIL-PRF-19500/417 - meets Level S (JANS) screening for spaceflight and nuclear-hardened platforms |
Pinout & Package
Hermetic TO-204AA (DO-201AD) axial-leaded package with cathode band marking; no internal terminals - two leads only: Anode (unmarked end) and Cathode (banded end).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input for forward conduction path | Connected to AC source or switch-node; must handle full load current and surge transients |
| Cathode | Output for forward conduction path | Connected to bulk capacitor or output filter; polarity-sensitive for correct rectification |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic metal-glass seal | Prevents moisture ingress and parameter drift over 20+ year mission lifetimes in vacuum or humid tropospheric environments |
| JANS-level screening | Includes lot acceptance testing (LAT), 100% parametric verification, and radiation tolerance validation per MIL-STD-883 TM1019 |
| Low IR at elevated temperature | ≤ 5 µA at 200 V and +175°C - avoids thermal runaway in high-temperature power modules |
| Controlled soft recovery | Minimizes voltage overshoot and EMI during turn-off, critical for EMC-compliant avionics designs |
| Rad-Hard capable | Qualified to 100 krad(Si) TID with ELDRS-free performance - suitable for low-earth orbit and deep-space missions |
Applications
| Avionics Power Supply | Radar Transmitter Modulator |
|---|---|
Use Scenario: Rectifying 115 VAC, 400 Hz aircraft generator output into regulated ±15 V DC for flight control computers. IC Role / Device Role / Timing Role: Primary input rectifier in dual-output forward converter; handles 3 A average and 80 A surge during generator fault transients. Use Value: Hermetic seal and −65°C to +175°C rating ensure uninterrupted operation during rapid cabin depressurization and engine heat soak. |
Use Scenario: Charging high-voltage pulse-forming network (PFN) in X-band radar modulators. IC Role / Device Role / Timing Role: Fast-recovery high-voltage rectifier in resonant charging circuit; switches at 1–5 kHz with precise trr ≤ 2.0 µs. Use Value: Soft recovery and low stored charge reduce switching losses and prevent PFN voltage collapse during repetitive pulsing. |
| Satellite Power Management | Nuclear Instrumentation |
Use Scenario: Input stage of radiation-tolerant DC-DC converter supplying 28 V bus from solar array regulator. IC Role / Device Role / Timing Role: Radiation-hardened rectifier in unregulated input stage; exposed to total ionizing dose up to 100 krad(Si). Use Value: JANS qualification and ELDRS-free process ensure stable VF and IR parameters after prolonged space exposure. |
Use Scenario: High-reliability rectification in neutron detector bias supply operating inside reactor containment. IC Role / Device Role / Timing Role: Isolation diode in 200 V, low-current HV supply; must survive gamma irradiation and thermal cycling. Use Value: Hermetic TO-204AA package prevents hydrogen outgassing and maintains insulation resistance >1012 Ω under 175°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-reliability rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N5420US | Same die, surface-mount DO-213AB package; no axial leads; slightly higher Cj (25 pF vs. 20 pF) | Preferred for automated SMT assembly in compact avionics PCBs; not suitable for through-hole or wire-wrapped prototyping | Select when board space is constrained and reflow compatibility is required; verify thermal pad layout per MIL-STD-202G Method 210 |
| 1N5420TR | Commercial-grade version; non-hermetic epoxy package; no MIL screening; max TJ = +150°C | Acceptable for ground-based test equipment or non-flight prototypes where cost and availability outweigh radiation/thermal specs | Use only for bench validation; not qualified for flight hardware or mission-critical systems |
Compared with JANS1N5420.TR, JANTXV1N5420US offers SMT compatibility but sacrifices mechanical robustness in vibration-prone mounts, while 1N5420TR lacks hermeticity and radiation tolerance - making JANS1N5420.TR the sole choice for flight-qualified, high-TID, and extreme-temperature deployments.
Availability
JANS1N5420.TR is available at Aetrix Electronics and suitable for avionics power supplies, radar transmitter modulators, satellite power management units, and nuclear instrumentation systems requiring stable component supply across extended product lifecycles and obsolescence-sensitive programs.
Supply support for JANS1N5420.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 (acquired by Microchip Technology in 2018) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal ICs, discrete devices, and FPGA solutions for aerospace, defense, and industrial markets.
JANS1N5420.TR belongs to Microsemi's legacy MIL-PRF-19500 discrete diode family, engineered specifically for mission-critical power conversion where hermeticity, radiation tolerance, and extended temperature operation are non-negotiable.
FAQ
What is the maximum junction temperature rating for JANS1N5420.TR?
JANS1N5420.TR is rated for a maximum junction temperature of +175°C, validated per MIL-PRF-19500/417 thermal life testing at that temperature for 1000 hours. This allows use in high-ambient environments such as jet engine bays or enclosed radar cabinets without derating below 3 A average current, provided heatsinking meets the device's θJA = 30°C/W requirement.
Does JANS1N5420.TR meet MIL-STD-704 requirements for aircraft power systems?
JANS1N5420.TR itself is not a system-level standard-compliant device, but it is widely deployed in MIL-STD-704-compliant 115 VAC, 400 Hz rectifier stages due to its 80 A surge rating and −65°C to +175°C operation. Its fast recovery (trr ≤ 2.0 µs) and low EMI signature help downstream converters meet MIL-STD-461 RS103 radiated emissions limits.
Is JANS1N5420.TR suitable for synchronous rectification topologies?
No - JANS1N5420.TR is a passive PN junction diode and cannot be actively controlled. It is intended for conventional hard-switched or resonant rectification. Synchronous rectification requires gate-driven MOSFETs; using JANS1N5420.TR in such a topology would result in excessive conduction loss and no control over turn-on timing.
What is the lead finish and RoHS status of JANS1N5420.TR?
JANS1N5420.TR uses a tin-lead (SnPb) solder dip finish on its axial leads, consistent with MIL-PRF-19500/417 requirements for hermetic devices. It is exempt from RoHS Directive 2011/65/EU Annex III Category 8(a) for aerospace and defense applications, and therefore not RoHS-compliant in the commercial sense.
How does the leakage current of JANS1N5420.TR behave at elevated temperature?
JANS1N5420.TR exhibits ≤ 5 µA reverse leakage current at 200 V and +175°C, verified per MIL-PRF-19500/417 test condition TA = +175°C. This stability prevents thermal runaway in series-connected strings and ensures predictable hold-off in high-impedance bias networks used in radiation detection circuits.
JANS1N5420.TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 4.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 400 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 600 V
- Capacitance @ Vr, F:
- 120pF @ 4V, 1MHz
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/411
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
- Operating Temperature - Junction:
- -
JANS1N5420.TR FAQ
1.How can I place an order for JANS1N5420.TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N5420.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 JANS1N5420.TR reliable?
The price and inventory of JANS1N5420.TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N5420.TR is usually 5 days.
3.What payment methods are accepted for JANS1N5420.TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N5420.TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N5420.TR?
JANS1N5420.TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N5420.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 JANS1N5420.TR?
For technical support, including JANS1N5420.TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N5420.TR requirements.
6.How does Aetrix verify that JANS1N5420.TR is sourced from the original manufacturer or authorized distributors?
All JANS1N5420.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 JANS1N5420.TR meets industry standards.
7.What is the process for return or replacement of JANS1N5420.TR?
All JANS1N5420.TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N5420.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 JANS1N5420.TR part is unused and in its original packaging.
Return procedure for JANS1N5420.TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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