Keithley 2520, Service Manual, Page: 112 / 137

6-14 Replaceable Parts Model 2520 Pulsed Laser Diode Test System Service Manual
Q5,Q6,Q7,Q8,Q17,Q20,Q23 TRANS, PNP, MMBT3906L TG-244
Q9 TRANS, HEXFET POWER MOSFET TG-304
R1 RES, 2.5, .1%, 1.5W, METAL FOIL R-501-2.5
R10 RES, 22.1K, 1%, 100MW, THICK FILM R-418-22.1K
R11,R9,R51 RES, 10K, 1%, 100MW, THICK FILM R-418-10K
R12,R20 RES, 475, 1%, 100MW, THICK FILM R-418-475
R15 RES, 24.9, 1%, 100MW, THICK FILM R-418-24.9
R16,R21,R14 RES, 324, 1%, 100MW, THIN FILM R-438-324
R2 RES, 215, 1%, 100MW, THICK FILM R-418-215
R22,R13 RES, 38.3K, 1%, 100MW, THIN FILM R-438-38.3K
R24 RES, 11.8K, 1%, 100MW, THIN FILM R-438-11.8K
R25 RES, 43.2, 1%, 100MW, THICK FILM R-418-43.2
R26 RES, 2K, 1%, 100MW, THICK FILM R-418-2K
R27 RES, 24.9, 1%, 100MW, THICK FILM R-418-24.9
R28,R30 RES, 200, 1%, 100MW, THICK FILM R-418-200
R29,R53-R59,R63 RES, 2.2, 5%, 1W, THICK FILM R-500-2.2
R3,R6,R7,R17-R19,R48,R67,R68 RES, 1K, 1%, 100MW, THICK FILM R-418-1K
R33,R35 RES, 33, 5%, 250MW, METAL FILM R-376-33
R34,R36,R32 RES, 33, 5%, 250MW, METAL FILM R-376-33
R37,R40,R31 RES, 20, 1%, 100MW, THICK FILM R-418-20
R38,R39,R41,R42 RESISTOR R-509-2.2
R4 RES, 100K, 1%, 100MW, THICK FILM R-418-100K
R43,R49 RES, 499, 1%, 100MW, THICK FILM R-418-499
R44 RES, 2M, 1%, 100MW, THICK FILM R-418-2M
R45 RES, 39.2K, 1%, 100MW, THICK FILM R-418-39.2K
R46 NTC THERMISTOR RT-24
R47 RES, 1.74K, 1%, 100MW, THICK FILM R-418-1.74K
R5,R23 RES, 2.21K, 1%,100MW, THIN FILM R-438-2.21K
R50 RES, 100, 1%, 100MW, THICK FILM R-418-100
R52 RES, 100, 1%, 100MW, THICK FILM R-418-100
R60 RES, 1K, 1%, 100MW, THICK FILM R-418-1K
R64,R66 RES, 49.9, 1%, 100MW, THICK FILM R-418-49.9
R65 RES, 10K, 1%, 100MW, THICK FILM R-418-10K
R69,R70 RES, 10M, 1%, 125MW, THICK FILM R-418-10M
R71 RES, 3.32K, 1%, 100MW, THICK FILM R-418-3.32K
Table 6-4 (continued)
Pulse board parts list
Circuit designation Description Keithley part no.