21 1 ! note ?please read rating and ! caution (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, e tc. ?this catalog has only typical specifications because there is no space for detailed specifications. therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. on-board type (dc) emi suppression filters (emifil r ) chip ferrite beads blm02/03/15/18/21/31/41 series n features (blm_a series) the chip ferrite beads blm series is designed to function nearly as a resistor at noise frequencies, which greatly reduces the possibility of resonance and leaves signal wave forms undistorted. blm series is effective in circuits without stable ground lines because blm series does not need a connection to ground. the nickel barrier structure of the external electrodes provides excellent solder heat resistance. blm_a series generates an impedance from the relatively low frequencies. therefore blm_a series is effective in noise suppression in a wide frequency range (30mhz to several hundred mhz). the small size of blm02a series (0.4x0.2mm) is suitable for noise suppression in small equipment such as pa modules for cellular phones. n equivalent circuit (resistance element becomes dominant at high frequencies.) blm02a series (01005 size) (in mm) 0.4 0.02 0.2 0.02 0.2 0.02 0.10+0.04/?.03 : electrode blm02a series part number impedance (at 100mhz/20 c) (ohm) rated current (ma) dc resistance (max.) (ohm) operating temperature range ( c) blm02ag100sn1 10 (typ.) 500 0.1 -55 to +125 BLM02AG700SN1 70 25% 250 0.5 -55 to +125 blm02ag121sn1 120 25% 200 0.8 -55 to +125 ? this pdf catalog is downloaded from the website of murata manufacturing co., ltd. therefore, its specifications are subject to change or our products in it may be discontinued without advance notice. please check with our sales representatives or product engineers before ordering. ? this pdf catalog has only typical specifications because there is no space for detailed specifications. therefore, please app rove our product specifications or transact the approval sheet for product specifications before ordering. ! note c31e.pdf 08.9.1
2 2 1 ! n o t e p l e a s e r e a d r a t i n g a n d ! c a u t i o n ( f o r s t o r a g e , o p e r a t i n g , r a t i n g , s o l d e r i n g , m o u n t i n g a n d h a n d l i n g ) i n t h i s c a t a l o g t o p r e v e n t s m o k i n g a n d / o r b u r n i n g , e t c . t h i s c a t a l o g h a s o n l y t y p i c a l s p e c i f i c a t i o n s b e c a u s e t h e r e i s n o s p a c e f o r d e t a i l e d s p e c i f i c a t i o n s . t h e r e f o r e , p l e a s e a p p r o v e o u r p r o d u c t s p e c i f i c a t i o n s o r t r a n s a c t t h e a p p r o v a l s h e e t f o r p r o d u c t s p e c i f i c a t i o n s b e f o r e o r d e r i n g . n i m p e d a n c e - f r e q u e n c y ( t y p i c a l ) b l m 0 2 a s e r i e s i m p e d a n c e ( ) 0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 f r e q u e n c y ( m h z ) 1 1 0 1 0 0 1 0 0 0 3 0 0 0 b l m 0 2 a g 1 0 0 s n 1 b l m 0 2 a g 7 0 0 s n 1 b l m 0 2 a g 1 2 1 s n 1 n i m p e d a n c e - f r e q u e n c y c h a r a c t e r i s t i c s b l m 0 2 a g 1 0 0 s n 1 0 5 1 0 1 5 2 0 z r x 1 1 0 1 0 0 3 0 0 0 1 0 0 0 f r e q u e n c y ( m h z ) i m p e d a n c e ( ) b l m 0 2 a g 7 0 0 s n 1 z r x 1 1 0 1 0 0 3 0 0 0 1 0 0 0 f r e q u e n c y ( m h z ) i m p e d a n c e ( ) 0 5 0 1 0 0 1 5 0 2 0 0 b l m 0 2 a g 1 2 1 s n 1 0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 z r x i m p e d a n c e ( ) 1 1 0 1 0 0 3 0 0 0 1 0 0 0 f r e q u e n c y ( m h z ) ? this pdf catalog is downloaded from the website of murata manufacturing co., ltd. therefore, its specifications are subject to change or our products in it may be discontinued without advance notice. please check with our sales representatives or product engineers before ordering. ? this pdf catalog has only typical specifications because there is no space for detailed specifications. therefore, please app rove our product specifications or transact the approval sheet for product specifications before ordering. ! note c31e.pdf 08.9.1
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