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RM4 is used where cooling power is required to ensure very short cool down times or when the detector needs to be cooled to sub 77 K temperatures. The RM4 is compatible with demanding applications exposed to severe conditions.

Benefits 

• Designed to operate in severe environmental conditions
• High cooling power enabling below 77 K detector temperatures or very short cool down time

Features

Typical performance @ 20°C

• Cooling Power: > 850 mW @ 77 K
• Cold temperature range: 70 K - 150 K
• Standard Input Voltage: 30 Vdc
• Steady State Input Power: < 3.4 Wac @ 130 mW, 77 K
• Cool Down Time: < 3 min @ dewar 250 J, 77 K
• Reliability: > 24,000 hours
• Max. Dimensions: 98.5 x 71 x 43.5 mm
• Weight: < 420 gr
• Cold Finger Ø: ¼’’ IDCA
• Operating Temperature: - 46°C to + 85°C
• Acoustic noise: < 43 dBA

Applications

• Embedded (naval, vehicles)
• Missiles
• Semiconductor and superconductive components