2.5 gb/s optical fiber communications 50 m ingaas avalanche photo diode module with mmf ndl5521p series features small dark current: i d = 5 na high quantum efficiency: = 90% at = 1300 nm, m = 1 = 77% at = 1550 nm, m = 1 high speed response: f c = 2.5 ghz at m = 10 detecting area size: 50 m coaxial module with multimode fiber (gi-50/125) ndl5521p1 and ndl5521p2 have a flange the ndl5521p series are ingaas avalanche photo diode modules with multimode fiber.they are designed for 2.5 gb/s optical fiber communication systems and cover the wave- length range between 1000 and 1600 nm with high efficiency. these modules are also available with fc-pc connector and sc-pc connector. description part number ndl5521p series package outline symbols parameters and conditions units min typ max v (br)r reverse breakdown voltage, i d = 100 a v 40 55 80 temperature coefficient of reverse breakdown voltage 1 %/ c0.20 i d dark current, v r = v (br)r x 0.9 na 5 30 i dm multiplied dark current, m = 2 to 10 na 0.50 5 c t terminal capacitance, v r = v (br)r x 0.9, f = 1 mhz pf 0.40 0.75 f c cut-off frequency, m = 5 ghz 2.5 m = 10 2.5 3.0 m = 30 1.0 quantum efficiency, = 1300 nm, m = 1 % 76 90 = 1550 nm, m = 1 65 77 s responsivity, = 1300 nm, m = 1 a/w 0.80 0.94 = 1550 nm, m = 1 0.81 0.96 m multiplication factor, = 1550 nm, i po = 1.0 a, m 30 40 v r = v (at i d = 1 a) x excess noise factor, = 1300 nm, 1550 nm, 0.7 fi po = 1.0 a, m = 10, f = 35 mhz, b = 1 mhz 5 orl optical return loss db 30 electro-optical characteristics (t c = 25 c) v (br)r < 25 c + ? t c > - v (br)r < 25 c> note: 1. = ? t c ?v (br)r < 25 c> california eastern laboratories
absolute maximum ratings 1 (t c = 25 c, unless otherwise specified) symbols parameters units ratings i f forward current ma 10 i r reverse current ma 0.5 t c operating case temp. c -40 to +85 t stg storage temperature c -40 to +85 note: 1. operation in excess of any one of these parameters may result in permanent damage. ndl5521p series ndl5521p1 ndl5521p ndl5521p2 outline dimensions (units in mm) lead connection 1. anode (negative) 2. cathode (positive) 3. case 2.5 2- 2.2 2.0 optical fiber gi-50/125 length: 1 m min. shrunk tube 30.0 max 1.5 12.5 min 6.9 0.3 3.9 0.5 4.0 7.0 18.0 14.0 4.0 0.1 3 1 2 1 3 2 +0.0 - 0.1 6.0 2.5 2.0 2- 2.5 optical fiber gi-50/125 length: 1 m min. shrunk tube +0.0 - 0.1 6.0 30.0 max 12.5 min 2.0 0.1 0.5 3 1 2 12.0 7.0 16.0 2.5 0.45 2.0 optical fiber gi-50/125 length: 1 m min. shrunk tube +0.0 - 0.1 6.0 +0.0 - 0.1 6.0 30.0 max 12.5 min 6.9 0.3 3.0 0.3 3 1 2 part number available connector description ndl5521p without connector no flange ndl5521pc with fc-pc connector NDL5521PD with sc-pc connector ndl5521p1 without connector flat mount ndl5521p1c with fc-pc connector flange ndl5521p1d with sc-pc connector ndl5521p2 without connector vertical flange ndl5521p2c with fc-pc connector ndl5521p2d with sc-pc connector ordering information
ndl5521p series exclusive north american agent for rf, microwave & optoelectronic semiconductors california eastern laboratories headquarters 4590 patrick henry drive santa clara, ca 95054-1817 (408) 988-3500 telex 34-6393 fax (408) 988-02 7 24-hour fax-on-demand: 800-390-3232 (u.s. and canada only) internet: http://www.cel.com 11/14/2000 data subject to change without notice fiber ferrule (*5) module body (*1) 30 mm min (*3) 18 mm min (*4) (*2) the nec pd/apd module has heat shrink tubing to protect the ferrule edge (*1) and the junction between the ferrule and the modu le body (*2). in order to avoid breaking the fiber and/or optical coupling degradation, nec recommends the following handling precautions: 1. do not make the fiber bend radius less than 30 mm (*3). 2. do not bend the fiber within the 18 mm section from the module body (*4). 3. do not stress the ferrule with a lateral force exceeding 500 g (*5). handling precaution for pd/apd module
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