SMP400G-CE prelim. 1/98 semelab plc. telephone (01455) 556565. telex: 341927. fax (01455) 552612. mechanical data dimensions in mm. p.i.n. photodiode description the smp400g is a silicon p.i.n. photodiode specifically designed for optical fibre communication. the device is incorporated in a compact, low profile, hermetic metal can package. a glass bead lens incorporated into the to-46 case provides an efficient optical design. this affords substantial mis-alignment between the device and a fibre optic cable without degrading the coupling efficiency. the electrical terminations are via three leads of diameter 0.02" on a pitch of 0.1". both cathode and anode connections to the photodiode are electrically isolated from the package. to-18 package operating temperature range storage temperature range temperature coefficient of responsively temperature coefficient of dark current reverse breakdown voltage -40c to +70c -45c to +80c 0.35% per c x2 per 8c rise 60v absolute maximum ratings (t case = 25c unless otherwise stated) features ? large numerical aperture for ease of coupling to fibre optic cables ? low noise ? wide intrinsic bandwidth ? excellent linearity ? low leakage current ? low capacitance ? to-46 hermetic metal can package pin 1 C anode pin 2 C cathode pin 3 C case 4.3 13 nom. cathode anode case 1 2 3 1 2 3 2.54 ? 5.4 ? 4.7 ? 0.45 lead
SMP400G-CE prelim. 1/98 semelab plc. telephone (01455) 556565. telex: 341927. fax (01455) 552612. characteristic t est conditions. min. t yp. max. units responsiv ely activ e area dar k current breakdo wn v oltage capacitance rise time nep l at 900nm e = 0 dar k 1v re v erse e = 0 dar k 10v re v erse e = 0 dar k 10a re v erse e = 0 dar k 0v re v erse e = 0 dar k 20v re v erse 30v re v erse 50 w 900nm 0.45 0.55 0.62 0.1 1.0 0.5 2.5 60 80 8 12 1.5 2.5 4 7.2 0.45 a/w mm 2 na v pf ns w/ ? hz chara cteristics (t amb =25c unless otherwise stated) 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0 0 0 . 1 0 . 2 0 . 3 0 . 4 0 . 5 r r a d i a l d i s p l a c e m e n t ( m m ) relative responsivity (%) 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0 0 0 . 2 0 . 4 0 . 6 0 . 8 1 1 . 2 1 . 4 1 . 6 1 . 8 2 z a x i a l d i s p l a c e m e n t ( m m ) relative responsivity (%) s p e c t r a l r e s p o n s e 0 2 0 4 0 6 0 8 0 1 0 0 0 2 0 0 4 0 0 6 0 0 8 0 0 1 0 0 0 1 2 0 0 w a v e l e n g t h ( n m ) relative responsivity (%) 0 0 . 1 0 . 2 0 . 3 0 . 4 0 . 5 0 . 6 0 . 7 0 . 8 0 . 9 1 0 1 0 2 0 3 0 r e v e r s e b i a s ( v ) relative capacitance (%)
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