RCA TRANSISTOR MANUAL GERMANIUM RECTIFIER Point-contact type used in low-power ap- plications. Maximum ratings: peak reverse IN56A volts, 40; average forward ma, 60; ambient- temperature range, 50 to 75C. Maximum over-all length (including leads), 414 inches; maximum diameter, 44 inch. This is a DIS- CONTINUED type listed for reference only. GERMANIUM RECTIFIER Point-contact type used in large-signal power applications such as computer and clamp- INS58A ing circuits. Maximum ratings: peak reverse volts, 100; average forward ma, 50; ambient- temperature range 50 to 75C. Maximum over-all length (including leads), 414 inches; maximum diameter, 14 inch. This is a DIS- CONTINUED type listed for reference only. SILICON RECTIFIERS IN248A Hermetically sealed 20-ampere ( types used in generator-type power 1N248 B supplies in mobile equipment; dc-to- m de converters and battery chargers; IN248C power supplies for aircraft, marine, and missile equipment; transmnitters, SIK rf generators, and de-motor power supplies; machine-tool controls; welding and electroplating equipment; de-blocking service; magnetic amplifiers; and a wide variety of other heavy-duty applications. These types are designed to meet strin- gent environmental and mechanical specifications. The special copper-alloy mounting stud can withstand an installing torque up to 50 inch-pounds. JEDEC No. DO-65 package; outline 3, Outlines Section. Types 1N248A and 1N248B are used principally for renewal purposes; they are similar to type 1N248C except for some slightly lower ratings, and can be directly replaced by type 1N248C. Type 1N248C is identical with type 1N1198A except for the following items: MAXIMUM RATINGS For power-supply frequency of 60 eps, single- phase operation, with resistive or inductive load PEAK REVERSE VOLTAGE 2... cece ce tence eee tence tere reese etneeree RMS SUPPLY VOLTAGE... 60. cc eee ee tee tee eee teens DC BLOCKING VOLTAGE... cc cece te eee enter ornare eennee CHARACTERISTICS Maximum Reverse Current: Dynamic. 0.0.0 ee teen eee eee eee enna 55 max 39 max 50 max 3.8 volts volts volts ma * Average value for one complete cycle at maximum peak reverse voltage, maximum average forward current, and case ternperature = 150C. SILICON RECTIFIERS IN248RA Hermetically sealed 20-ampere typ 1 i ator-t IN248RB._ stpptics in mobile equipment: de-to- de t d battery ch ; IN248RC power supplies for aircraft, marine, and missile equipment; transmitters, rf generators, and dc-motor power supplies; machine-tool controls; welding and 76