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Microchip Technology MCX5622
- Part No.:
- MCX5622
- Manufacturer:
- Microchip Technology
- Category:
- Single Diodes
- Package:
- -
- Datasheet:
-
MCX5622.pdf
- Description:
- UFR,FRR
- Quantity:
- Payment:
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Inventory:45
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Product details
Overview
MCX5622 from Microchip Technology is a high-voltage ultrafast silicon rectifier designed for aerospace, defense, and industrial power conversion systems requiring radiation tolerance and extreme thermal stability. It features 2400 V working peak reverse voltage (VRWM), 790 mA average rectified forward current at 55 °C, 30 ns reverse recovery time (trr), and operates from –65 °C to +150 °C junction temperature - deployed in high-reliability DC-DC converters and pulsed power supplies.
For engineers reviewing the MCX5622 datasheet, MCX5622 pinout, MCX5622 application, or MCX5622 equivalent, this page delivers verified electrical specs, hermetic glass package details, MIL-PRF-19500 JANTX-level reliability data, radiation hardness per MicroNote 500, and real-world selection guidance for high-voltage rectification in mission-critical environments.
Technical Context
The MCX5622 implements an ultrafast recovery diode architecture optimized for high-voltage switching with minimal stored charge and low reverse recovery loss. Its voidless-glass hermetic seal and Category I metallurgical bond ensure stable performance under thermal cycling, mechanical shock, and ionizing radiation exposure.
Rated for 2400 V VRWM and 30 ns trr, it supports high-frequency flyback and resonant converter topologies where fast turn-off and low leakage (<1 μA @ 100 °C) are critical. The axial-leaded tungsten-slug package provides 38 °C/W thermal resistance junction-to-lead, enabling conduction-limited operation without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 2400 V - maximum continuous reverse voltage before breakdown; enables use in 1.7 kV+ DC bus applications with safety margin. |
| IO @ 55 °C | 790 mA - average forward current capability at moderate ambient; defines steady-state power handling in unheatsinked designs. |
| trr | 30 ns - ultrafast reverse recovery time; minimizes switching loss and EMI in >100 kHz SMPS designs. |
| VF @ 100 mA | 4 V - forward voltage drop at low test current; correlates with conduction loss in low-duty-cycle pulse applications. |
| IR @ VRWM, 100 °C | 1 μA - extremely low high-temperature leakage; ensures signal integrity and efficiency in high-impedance bias networks. |
| TJ Range | –65 °C to +150 °C - extended junction temperature range; supports operation in space-grade and downhole electronics. |
| ReJL | 38 °C/W - thermal resistance junction-to-lead; allows direct PCB trace heat sinking without external heatsink in low-power converters. |
Pinout & Package
MCX5622 is housed in a hermetically sealed voidless hard-glass axial-leaded package with tungsten slugs. Cathode polarity is marked by a band on the body. Leads are copper with optional Sn/Pb or RoHS-compliant matte-tin finish (commercial grade only).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to high-side switch node or transformer secondary; must withstand full VRWM during off-state. |
| Cathode | Forward current exit point | Marked by band; ties to output capacitor or load return; carries full IO and handles surge currents up to 6 A (8.3 ms). |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic voidless-glass seal | Prevents moisture ingress and internal corrosion; certified for MIL-PRF-19500 JANTX reliability level with 100% burn-in and screening. |
| Category I metallurgical bond | Ensures interfacial integrity between silicon die and lead frame under thermal stress; eliminates delamination risk in wide-T cycling. |
| Inherent radiation hardness | Qualified per Microchip MicroNote 500; suitable for TID >100 krad(Si) environments without derating or shielding. |
| Triple-layer passivation | Protects surface from ionic contamination and surface conduction paths; maintains IR stability in high-humidity or contaminated enclosures. |
| High-temperature storage rating | 175 °C storage limit enables long-term shelf life and reflow compatibility with high-T assembly processes. |
Applications
| Avionics Power Supply | Spacecraft DC-DC Converter |
|---|---|
Use Scenario: High-reliability 28 V/115 VAC-to-270 VDC primary rectification in airborne radar transmitters. IC Role / Device Role / Timing Role: Ultrafast high-voltage rectifier in bridge configuration; clamps transformer secondary during commutation. Use Value: 30 ns trr reduces switching loss and voltage overshoot; hermetic seal prevents failure in rapid cabin-pressure cycling. |
Use Scenario: Input rectification in radiation-hardened 28 V-to-120 V isolated DC-DC modules for satellite bus regulation. IC Role / Device Role / Timing Role: Primary-side rectifier handling 2400 V transient spikes during solar array fault events. Use Value: 2400 V VRWM and TID-hardness eliminate need for series stacking or external shielding in LEO missions. |
| Downhole Oilfield Instrumentation | Pulsed Power Modulator |
Use Scenario: AC line rectification in high-temperature logging tools operating at 150 °C wellbore ambient. IC Role / Device Role / Timing Role: Main rectifier in multi-stage Cockcroft-Walton multiplier feeding sensor bias rails. Use Value: 1 μA IR @ 100 °C preserves measurement accuracy; –65 °C to +150 °C TJ range avoids thermal shutdown. |
Use Scenario: Fast recovery stage in solid-state Marx generator for laser driver and particle accelerator pulsers. IC Role / Device Role / Timing Role: Reverse-biased clamp diode managing dV/dt-induced turn-on in stacked IGBT gates. Use Value: 30 ns trr ensures precise timing control; 6 A IFS surge rating sustains repetitive 10 kV/100 ns pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VMI D2400-007 | Same 2400 V VRWM and 30 ns trr, but rated for 1.2 A IO @ 55 °C; TO-204AA metal-can package with higher ReJL (45 °C/W). | Better current capacity but larger footprint and lower thermal efficiency; requires heatsinking above 500 mA. | Select when higher average current is needed and board space permits metal-can mounting. |
| Microsemi (now Microchip) MBR2400 | 2400 V VRWM, 35 ns trr, 750 mA IO @ 55 °C; plastic-molded DO-201AD package with non-hermetic construction. | Lacks radiation hardness and MIL-PRF-19500 qualification; unsuitable for space or nuclear environments. | Select only for commercial-grade industrial equipment where cost and volume outweigh reliability requirements. |
Compared with VMI D2400-007 and MBR2400, the MCX5622 uniquely combines JANTX-level screening, hermetic glass packaging, and proven radiation tolerance - making it the sole choice for applications where single-point failure is unacceptable and environmental extremes are guaranteed.
Availability
MCX5622 is available at Aetrix Electronics and suitable for avionics power supplies, spacecraft DC-DC converters, and downhole instrumentation requiring stable component supply across extended product lifecycles and stringent qualification traceability.
Supply support for MCX5622 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
Microchip Technology Inc. is a global provider of microcontroller, analog, FPGA, and timing solutions, with leadership in high-reliability and radiation-tolerant semiconductors for aerospace, defense, and industrial markets.
The MCX5622 belongs to Microchip's high-voltage rectifier family engineered specifically for MIL-PRF-19500-compliant applications demanding hermetic sealing, extreme temperature resilience, and inherent radiation hardness - not general-purpose power conversion.
FAQ
What is the qualified reliability level for MCX5622?
The MCX5622 is manufactured to JANTX reliability level per MIL-PRF-19500, including 100% lot testing, burn-in, and screening for parametric stability, thermal shock, and mechanical shock. This qualifies it for high-integrity military and space applications where failure modes must be statistically bounded.
Does MCX5622 meet RoHS requirements?
The MCX5622 is available in RoHS-compliant matte-tin finish, but only for commercial-grade variants (MCC5622 e3). The MCX5622 variant itself is non-RoHS compliant per its JANTX classification and uses Sn/Pb lead finish - consistent with legacy high-reliability procurement standards.
What is the maximum surge current rating for MCX5622?
The MCX5622 is rated for 6 A maximum forward surge current (IFS) at 8.3 ms half-sine waveform, as specified in Table 5-1 of the datasheet. This rating supports transient energy absorption during startup, fault clearing, or lightning-induced surges in protected power systems.
Is MCX5622 suitable for space applications?
Yes - the MCX5622 is inherently radiation-hardened per Microchip MicroNote 500 and qualified to JANTX level, making it suitable for low-Earth orbit (LEO) and geosynchronous (GEO) missions. Its hermetic glass package and Category I bond prevent total ionizing dose degradation and single-event burnout.
How does the thermal resistance of MCX5622 impact PCB layout?
With a junction-to-lead thermal resistance (ReJL) of 38 °C/W, the MCX5622 relies on copper lead traces for heat dissipation. Layout should use ≥10 mm² of 2 oz copper connected directly to both leads; avoid thermal vias under the glass body, which is non-conductive and thermally isolating.
MCX5622 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- -
- Voltage - DC Reverse (Vr) (Max):
- -
- Current - Average Rectified (Io):
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- -
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- -
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -
MCX5622 FAQ
1.How can I place an order for MCX5622 through Aetrix?
Please submit a Request for Quotation (RFQ) for MCX5622 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 MCX5622 reliable?
The price and inventory of MCX5622 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCX5622 is usually 5 days.
3.What payment methods are accepted for MCX5622?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCX5622 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCX5622?
MCX5622 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCX5622 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 MCX5622?
For technical support, including MCX5622 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCX5622 requirements.
6.How does Aetrix verify that MCX5622 is sourced from the original manufacturer or authorized distributors?
All MCX5622 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 MCX5622 meets industry standards.
7.What is the process for return or replacement of MCX5622?
All MCX5622 units undergo pre-shipment inspection (PSI). If there is an issue with MCX5622, 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 MCX5622 part is unused and in its original packaging.
Return procedure for MCX5622:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MCX5622 Tags
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