drd 3770a52 rectifier diode ds5988 - 1 january 2011 (ln28009 ) 1 /8 www.dynexsemi.com features ? double side cooling ? high surge capability applications ? rectification ? free - wheel diode ? dc motor control ? power supplies ? welding ? battery chargers voltage ratings part and ordering number repetitive peak voltages v drm and v drm v conditions drd 3770a52 drd3770a50 drd3770a48 DRD3770A44 52 00 50 00 48 00 44 00 v rsm = v rrm +100v lower voltage grades available. ordering information when ordering, select the required part number shown in the voltage ratings selection table. for example: drd 3770 a 50 for a 5000v device note: please use the complete part number when ordering and quote this number in any future correspondence relating to your order. key parameters v rrm 52 00v i f(av) 3768 a i fsm 70 000a outline type code: a (see package details for further information) fig. 1 package outlines
semiconductor drd 3770a52 2 / 8 www.dynexsemi.com current ratings t case = 75c unless stated otherwise symbol parameter test conditions max. units double side cooled i f(av) mean forward current half wave resistive load 4914 a i f(rms) rms value - 7715 a i f continuous (direct) on - state current - 7150 a single side cooled (anode side) i f(av) mean forward current half wave resistive load 3213 a i f(rms) rms value - 5044 a i f continuous (direct) on - state current - 4407 a t case = 100c unless stated otherwise symbol parameter test conditions max. units double side cooled i f(av) mean forward current half wave resistive load 3768 a i f(rms) rms value - 5916 a i f continuous (direct) on - state current - 5414 a single side cooled (anode side) i f(av) mean forward current half wave resistive load 2433 a i f(rms) rms value - 3820 a i f continuous (direct) on - state current - 3256 a
- 3 - semiconductor drd 3770a52 3 /8 www.dynexsemi.com surge ratings symbol parameter test conditions max. units i fsm surge (non - repetitive) on - state current 10ms half sine, t case = 150c 56 ka i 2 t i 2 t for fusing v r = 50% v rrm - ? sine 15.8 ma 2 s i fsm surge (non - repetitive) on - state current 10ms half sine, t case = 150c 70 ka i 2 t i 2 t for fusing v r = 0 24.5 ma 2 s thermal and mechanical ratings symbol parameter test conditions min. max. units r th(j - c) thermal resistance C junction to case double side cooled dc - 0.0065 c/w single side cooled anode dc - 0.013 c/w cathode dc - 0.013 c/w r th (c - h) thermal resistance C case to heatsink clamping force 83.0kn double side - 0.001 c/w (with mounting compound) single side - 0.002 c/w t vj virtual junction temperature on - state (conducting) - 160 c reverse (blocking) - 150 c t stg storage temperature range - 55 150 c f m clamping force 75.0 91.0 kn characteristics symbol parameter test conditions min. max. units v fm forward voltage at 3000a peak, t case = 25c - 1. 17 v i rm peak reverse current at v drm, t case = 150c - 2 00 ma v to threshold voltage at t vj = 150c - 0. 82 v r t slope resistance at t vj = 150c - 0. 111 m ?
semiconductor drd 3770a52 4 / 8 www.dynexsemi.com curves fig.2 maximum (limit) forward characteristics fig.3 power loss curves C sine wave v tm equation where a = - 0.0 436 b = 0.1 0422 v tm = a + bln (i t ) + c.i t +d. ? i t c = 7.6 x 10 - 5 d = 0.00243 these values are valid for t j = 150c for i f 400a to 9 000a
- 5 - semiconductor drd 3770a52 5 /8 www.dynexsemi.com fig.4 power loss curves C square wave fig.5 stored charge fig.6 reverse recovery current fig.7 maximum (limit) transient thermal impedance C junction to case
semiconductor drd 3770a52 6 / 8 www.dynexsemi.com package details for further package information, please contact customer services. all dimensions in mm, unless stated otherwise. do not scale.
- 7 - semiconductor drd 3770a52 7 /8 www.dynexsemi.com important information: this publication is provided for information only and not for resale. the products and information in this publication are intended for use by appropriately trained technical personnel. due to the diversity of product applications, the information contained herein is provided as a general guide only and does n ot constitute any guarantee of suitability for use in a specific application . the user must evaluate the suitability of the product and the completeness of the product data for the application. the user is responsible for product selection and ensuring all safety and any warning r equirements are met. should additional product information be needed please contact customer se rvice. although we have endeavoured to carefully compile the information in this publication it may contain inaccuracies or typograp hical errors. the information is provided without any warranty or guarantee of any kind. this publication is an uncontroll ed document and is subject to change without notice. when referring to it please ensure that it is the most up to date version and has not been superseded. the products are not intended for use in applications where a failure or malfunction may cause loss of life, injury or damage to property. the user must ensure that appropriate safety precautions are taken to prevent or mitigate the consequences of a product failu re or malfunction. the products must not be touched when operating because there is a danger of electrocution or severe burning. always use protective safety equipment such as appropriate shields for the product and wear safety glasses. even when disconnected any electric charge remaining in the product must be discharged and allowed to coo l before safe handling using protective gloves. extended exposure to conditions outside the product ratings may affect reliability leading to premature product failure. use outside the product ratings is likely to cause permanent damage to the product. in extreme conditions, as with all semiconductors, this may include potentially hazardous rupture, a large current to flow or high voltage arcing, resulting in fire or explosion. appropriate ap plication design and safety precautions should always be followed to protect persons and property. product status & product ordering: we annotate datasheets in the top right hand corner of the front page, to indicate product status if it is not yet fully appr oved for production. the annotations are as follows: - target information: this is the most tentative form of information and represents a very preliminary specification. no actual design work on the product has been started. preliminary information: the product design is complete and final characterisation for vo lume production is in progress.the datasheet represents the product as it is now understood but details may change. no annotation: the product has been approved for production and unless otherwise notified by dynex any product ordered will be supplied to the current version of the data sheet prevailing at the time of our order acknowledgement. all products and materials are sold and services provided subject to dynexs conditions of sale, which are available on reque st. any brand names and product names used in this publication are trademarks, registered trademarks or trade names of their respective owners. headquarters operations dynex semiconductor limited doddington road, lincoln, lincolnshire, ln6 3lf united kingdom. phone: +44 (0) 1522 500500 fax: +44 (0) 1522 500550 web: http://www.dynexsemi.com customer service phone: +44 (0) 1522 502753 / 502901 fax: +44 (0) 1522 500020 e - mail: power_solutions@dynexsemi.com ? dynex semiconductor ltd. technical documentation C not for resale .
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