DEVICE: MAGNETRON
BRAND: JRC
TYPE: MAF1421B
JRC MAF1421B X-Band Magnetron
Overview
The JRC MAF1421B is a compact, high-performance magnetron used in marine X-band radar systems. With a fixed operational frequency and moderate power output, it delivers dependable performance for navigational safety and system reliability.
Key Features
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Fixed Frequency – Operates consistently within the 9380–9440 MHz range.
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Peak Output Power – Delivers up to 4 kW for clear radar imaging.
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Precise Electrical Performance
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Peak Anode Voltage: ~3.6 kV
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Peak Anode Current: ~3 A
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Heater Voltage / Current: ~6.3 V / ~0.55 A
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Duty Cycle / Pulse Duration: 0.001 / up to 1.0 µs
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Compact and Durable Design
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Air or forced-air cooling
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WR-90 waveguide interface with UG-135/U flange compatibility
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Lightweight at approximately 0.4 kg
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RoHS Compliant – Meets modern environmental and safety standards.
Maintenance Recommendation
For optimal radar clarity and tuning performance, replacing the magnetron after approx. 5,000 transmit hours is advisable. Where applicable, carbon brush service should be performed in conjunction with replacement.
Technical Specifications at a Glance
| Specification | Value |
|---|---|
| Frequency (Fixed) | 9380–9440 MHz |
| Peak Output Power | 4 kW |
| Peak Anode Voltage | ~3.6 kV |
| Peak Anode Current | ~3 A |
| Heater Voltage / Current | 6.3 V / 0.55 A |
| Duty Cycle / Pulse Width | 0.001 / up to 1.0 µs |
| Cooling & Interface | Air / Forced air; WR-90, UG-135/U |
| Weight | ~0.4 kg |
| Compliance | RoHS |
