Audio Transformers:

2 Ohm to 100K Ohm; 300Hz to 75KHz; 600 milliwatt at 1KHz

SURFACE MOUNT
PICO surface mount units utilize materials and methods to withstand extreme temperatures of vapor phase, I.R., and other reflow procedures without degradation of electrical or mechanical characteristics.

Specifications

MIL-PRF-27: All units manufactured to Mil-PRF-27, Grade 5, Class S.
FREQUENCY RESPONSE: ± 3db, 300 Hz-75 KHz at 1.0 Milliwatt.
MAXIMUM DISTORTION: 5% with rated power level at 1 KHz and 400 Hz.
DIELECTRIC STRENGTH: All units tested at 200 V RMS.
INSULATION RESISTANCE: Greater than 10,000 Megohms at 300 V DC.
WEIGHT: 5 Grams
TERMINALS: Solderability per MIL-STD-202, Method 208.
THERMAL SHOCK: 25 Cycles, Method 107, MIL-STD-202, Test Condition -55º C to +130º C.
MOISTURE SENSITIVITY LEVEL: MSL3

Square Package
Larger size drawing

Round Package
Larger size drawing

Audio Transformers: 2 Ohm to 100K Ohm; 300Hz to 75KHz; 600 milliwatt at 1KHz

PICO Part Number Square Package	PICO Part Number Round Package	Primary Impedence Ohms	Secondary Impedence Ohms Split Windings		Power Watts			Primary Unbal DC Current ma	Prim DC Resist Ohms	Secondary DC Resistance OHMS		Turns Ratio PRIM/SEC		***** Prices 1-9 (US $)**
PICO Part Number Square Package	PICO Part Number Round Package	Primary Impedence Ohms	SER CONN	PAR CONN	1KHz and higher	400Hz and higher	300Hz and higher	Primary Unbal DC Current ma	Prim DC Resist Ohms	SER CONN	PAR CONN	SEC SER CONN	SEC PAR CONN	***** Prices 1-9 (US $)**
76203 76205 76210 76215 76218	CSL203 CSL205 CSL210 CSL215 CSL218	20ct 20ct 32ct 40ct 48ct	8ct 20ct 32ct 40ct 16ct	2 5 8 10 4	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	30.0 30.0 23.0 21.0 19.0	2 2 3.3 3.7 3.75	1.2 2.8 4.5 5 3	.3 .7 1.13 1.25 .75	1.58:1 1:1 1:1 1:1 1.73:1	3.16:1 2:1 2:1 2:1 3.46:1	71.15 71.15 71.15 71.15 71.15
76220 76225 76228 76230 76235	CSL220 CSL225 CSL228 CSL230 CSL235	50ct 80ct 100ct 100ct 120ct	50ct 32ct 40ct 100ct 12.8ct	12.5 8 10 25 3.2	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	19.0 15.0 13.0 13.0 12.0	5 7.5 10.8 10.8 9.3	7 4.3 5 12 2.2	1.75 1.13 1.25 3 .55	1:1 1.58:1 1.58:1 1:1 3.06:1	2:1 3.16:1 3.16:1 2:1 6.12:1	71.15 71.15 71.15 71.15 71.15
76240 76245 76250 76255 76260	CSL240 CSL245 CSL250 CSL255 CSL260	120ct 120ct 150ct 150ct 150ct	60ct 120ct 12ct 50ct 100ct	15 30 3 12.5 25	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	12.0 12.0 11.0 11.0 11.0	9 11.6 11.2 13 13	7.2 13 2.2 6.8 11.8	1.8 3.3 55 1.7 3	1.41:1 1:1 3.54:1 1.73:1 1.22:1	2.83:1 2:1 7.08:1 3.46:1 2.45:1	71.15 71.15 71.15 71.15 71.15

PICO Part Number Square Package	PICO Part Number Round Package	Primary Impedence Ohms	Secondary Impedence Ohms Split Windings		Power Watts			Primary Unbal DC Current ma	Prim DC Resist Ohms	Secondary DC Resistance OHMS		Turns Ratio PRIM/SEC		***** Prices 1-9 (US $)**
PICO Part Number Square Package	PICO Part Number Round Package	Primary Impedence Ohms	SER CONN	PAR CONN	1KHz and higher	400Hz and higher	300Hz and higher	Primary Unbal DC Current ma	Prim DC Resist Ohms	SER CONN	PAR CONN	SEC SER CONN	SEC PAR CONN	***** Prices 1-9 (US $)**
76265 76270 76275 76280 76285	CSL265 CSL270 CSL275 CSL280 CSL285	150ct 150ct 200ct 300ct 300ct	150ct 600ct 200ct 12ct 50ct	37.5 150 50 3 12.5	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	11.0 11.0 10.0 8.0 8.0	12 13 19 24 30	18.3 75 21.3 1.7 6.8	4.6 19 5.4 .43 1.7	1:1 1:2 1:1 5:1 2.45:1	2:1 1:1 2:1 10:1 4.9:1	71.15 71.15 71.15 71.15 71.15
76290 76295 76300 76305 76310	CSL290 CSL295 CSL300 CSL305 CSL310	300ct 300ct 300ct 320ct 400ct	150ct 300ct 600ct 12.8ct 40ct	37.5 75 150 3.2 10	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	8.0 8.0 8.0 7.5 7.0	30 30 30 31 41	18 34 60 1.7 4.5	4.6 8.5 15 .43 1.13	1.41:1 1:1 1:1.41 5:1 3.16:1	2.83:1 2:1 1.41:1 10:1 6.32:1	71.15 71.15 71.15 71.15 71.15
76315 76320 76325 76330 76335	CSL315 CSL320 CSL325 CSL330 CSL335	400ct 400ct 400ct 400ct 400ct	120ct 200ct 400ct 1000ct 2000ct	30 50 100 250 500	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	7.0 7.0 7.0 7.0 7.0	41 41 41 41 41	12 21.3 37.5 96 212	3 5.4 9.4 24 53	1.83:1 1.41:1 1:1 1:1.58 1:2.24	3.65:1 2.83:1 2:1 1.26:1 1:1.12	71.15 71.15 71.15 71.15 71.15
76340 76342 76344 76345 76347	CSL340 CSL342 CSL344 CSL345 CSL347	400ct 500ct 500ct 500ct 500ct	4000ct 12.8ct 16ct 50ct 150ct	1000 3.2 4 12.5 37.5	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	7.0 6.0 6.0 6.0 6.0	41 48 48 39 48	375 1.7 1.9 6.8 18	94 .43 .5 1.7 4.6	1:3.16 6.25:1 5.6:1 3.16:1 1.83:1	1:1.58 12.5:1 11.2:1 6.32:1 3.65:1	71.15 71.15 71.15 71.15 71.15
76350 76355 76360 76365 76367	CSL350 CSL355 CSL360 CSL365 CSL367	500ct *500ct 500ct 600ct 600ct	500ct 500ct 600ct 12.8ct 30ct	125 - 150 3.2 7.5	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	6.0 6.0 6.0 5.5 5.5	48 48 48 53 53	54 68 59 1.7 4.2	13.5 - 15 .43 1.1	1:1 1:1 1:1.1 6.85:1 4.47:1	2:1 - 1.83:1 13.7:1 8.94:1	71.15 71.15 71.15 71.15 71.15
76370 76375 76380 76385 76387	CSL370 CSL375 CSL380 CSL385 CSL387	600ct 600ct 600ct *600ct 600ct	48ct 200ct 600ct 600ct 1200ct	12 50 150 - 300	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	5.5 5.5 5.5 5.5 5.5	53 53 57 53 53	6.8 21.3 79 75 105	1.7 5.3 20 - 26	3.54:1 1.73:1 1:1 1:1 1:1.41	7.07:1 3.46:1 2:1 - 1.41:1	71.15 71.15 71.15 71.15 71.15
76390 76395 76400 76405 76410	CSL390 CSL395 CSL400 CSL405 CSL410	640ct 700ct 800ct 800ct 800ct	12.8ct 100ct 12.8ct 48ct 800ct	3.2 25 3.2 12 200	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	5.5 5.0 5.0 5.0 5.0	66 69 75 75 75	1.7 12 1.7 6.8 105	.43 3 .43 1.7 26	7.07:1 2.65:1 7.9:1 4.08:1 1:1	14.14:1 5.29:1 15.8:1 8.16:1 2:1	71.15 71.15 71.15 71.15 71.15
76415 76420 76425 76430 76435	CSL415 CSL420 CSL425 CSL430 CSL435	900ct 1000ct 1000ct 1000ct 1060ct	600ct 12ct 50ct 1000ct 12.8ct	150 3 12.5 250 3.2	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	4.5 4.5 4.5 4.5 4.0	79 103 103 103 108	75 1.6 6.4 115 1.7	19 .4 1.6 28 .43	1.22:1 9.13:1 4.47:1 1:1 9.1:1	2.45:1 18.3:1 8.94:1 2:1 18.2:1	71.15 71.15 71.15 71.15 71.15
76440 76445 76450 76455 76460	CSL440 CSL445 CSL450 CSL455 CSL460	1200ct 1200ct 1200ct *1200ct 1500ct	12.8ct 500ct 1200ct 1200ct 12ct	3.2 125 300 - 3	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	4.0 4.0 4.0 4.0 3.5	113 113 113 111 126	1.7 54 126 125 1.6	.43 13.5 31.6 - .4	9.68:1 1.55:1 1:1 1:1 11.2:1	19.4:1 3.1:1 2:1 - 22.4:1	71.15 71.15 71.15 71.15 71.15
76465 76470 76475 76480 76483	CSL465 CSL470 CSL475 CSL480 CSL483	1500ct 1500ct 1500ct 1600ct 2000ct	500ct 600ct 1500ct 12.8ct 8ct	125 - - 3.2 2	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	3.5 3.5 3.5 3.5 3.0	126 126 126 130 210	68 94 176 1.7 1.2	17 - - .43 .3	1.73:1 1.58:1 1:1 11.2:1 15.8:1	3.46:1 - - 22.4:1 31.6:1	71.15 71.15 71.15 71.15 71.15
76485 76490 76495 76497 76500	CSL485 CSL490 CSL495 CSL497 CSL500	2000ct *2000ct 2000ct 2500ct 3000ct	2000ct 2000ct 8000ct 2500ct 3000ct	500 - 2000 625 750	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	3.0 3.0 3.0 2.5 2.5	198 198 198 220 243	218 218 850 305 335	55 - 213 76 84	1:1 1:1 1:2 1:1 1:1	2:1 - 1:1 2:1 2:1	71.15 71.15 71.15 71.15 71.15

PICO Part Number Square Package	PICO Part Number Round Package	Primary Impedence Ohms	Secondary Impedence Ohms Split Windings		Power Watts			Primary Unbal DC Current ma	Prim DC Resist Ohms	Secondary DC Resistance OHMS		Turns Ratio PRIM/SEC		***** Prices 1-9 (US $)**
PICO Part Number Square Package	PICO Part Number Round Package	Primary Impedence Ohms	SER CONN	PAR CONN	1KHz and higher	400Hz and higher	300Hz and higher	Primary Unbal DC Current ma	Prim DC Resist Ohms	SER CONN	PAR CONN	SEC SER CONN	SEC PAR CONN	***** Prices 1-9 (US $)**
76505 76510 76512 76514 76515	CSL505 CSL510 CSL512 CSL514 CSL515	*3000ct 3600ct 4000ct 4000ct 4000ct	3000ct 3600ct 16ct 600ct 1000ct	- 900 4 150 250	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	2.5 2.5 2.0 2.0 2.0	304 330 350 350 350	335 366 3 76 115	- 92 .75 19 29	1:1 1:1 15.8:1 2.58:1 2:1	- 2:1 31.6:1 5.16:1 4:1	74.07 71.15 71.15 71.15 71.15
76525 76530 76535 76540	CSL520 CSL525 CSL530 CSL535 CSL540	*4000ct 5000ct 5000ct 7500ct 7500ct	8000ct 500ct 5000ct 50ct 100ct	- 125 1250 12.5 25	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	2.0 2.0 2.0 1.5 1.5	350 350 390 600 600	1062 67 538 7 12	- 17 135 1.75 3	1:1.41 3.16:1 1:1 12.2:1 8.66:1	- 6.32:1 2:1 24.5:1 17.3:1	74.07 71.15 71.15 78.93 78.93
76545 76550 76555 76560 76565	CSL545 CSL550 CSL555 CSL560 CSL565	7500ct 7500ct *7500ct 8000ct 8000ct	600ct 2500ct 7500ct 12.8ct 1000ct	150 625 - 3.2 250	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	1.5 1.5 1.5 1.5 1.5	600 600 750 750 750	78 305 828 1.7 115	19.5 77 - .43 29	3.54:1 1.73:1 1:1 25:1 2.83:1	7.07:1 3.46:1 - 50:1 5.66:1	78.93 78.93 84.50 78.93 78.93
76570 76575 76580 76585 76590	CSL570 CSL575 CSL580 CSL585 CSL590	8000ct 9000ct 10,000ct 10,000ct 10,000ct	1200ct 9000ct 12.8ct 16ct 100ct	- - 3.2 4 25	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	1.5 1.4 1.4 1.4 1.4	750 796 1048 1048 839	158 1100 1.7 3 12	- - .43 .75 3	2.58:1 1:1 28:1 25:1 10:1	- - 56:1 50:1 20:1	84.50 84.50 78.93 78.93 78.93
76595 76600 76605 76610 76615	CSL595 CSL600 CSL605 CSL610 CSL615	10,000ct 10,000ct 10,000ct 10,000ct 10,000ct	200ct 500ct 600ct 1000ct 1200ct	50 125 150 250 300	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	1.4 1.4 1.4 1.4 1.4	839 850 850 850 850	27 67 74 115 158	6.7 17 18.5 29 39.5	7.07:1 4.47:1 4.08:1 3.16:1 2.89:1	14.14:1 8.94:1 8.16:1 6.32:1 5.77:1	78.93 78.93 78.93 78.93 78.93
76620 76625 76630 76635 76640	CSL620 CSL625 CSL630 CSL635 CSL640	10,000ct 10,000ct 10,000ct 10,000ct 10,000ct	1500ct 2000ct 5000ct 7500ct 10,000ct	375 500 1250 1875 2500	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	1.4 1.4 1.4 1.4 1.4	850 850 850 850 866	177 255 630 772 1215	44 64 158 193 304	2.58:1 2.24:1 1.41:1 1.15:1 1:1	5.16:1 4.47:1 2.83:1 2.3:1 2:1	78.93 78.93 78.93 78.93 78.93
76645 76650 76652 76655 76660	CSL645 CSL650 CSL652 CSL655 CSL660	*10,000ct 15,000ct 15,000ct 15,000ct 15,000ct	10,000ct 400ct 500ct 600ct 10,000ct	- 100 125 150 2500	.6 .6 .6 .6 .6	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	1.4 1.0 1.0 1.0 1.0	1060 1305 1305 1305 1305	1215 47 53 72.5 1215	- 12 13 18 304	1:1 6.12:1 5.48:1 5:1 1.22:1	- 12.24:1 10.95:1 10:1 2.45:1	84.50 78.93 78.93 78.93 78.93
76670 76675 76680 76685	CSL665 CSL670 CSL675 CSL680 CSL685	*15,000ct 15,000ct 16,000ct 20,000ct 20,000ct	15,000ct 15,000ct 1000ct 500ct 600ct	- 3750 250 125 150	.6 .6 .6 .5 .5	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	1.0 1.0 1.0 1.0 1.0	1305 1305 1343 1560 1560	1800 1800 115 68 75	- 450 29 17 19	1:1 1:1 4:1 6.33:1 5.77:1	- 2:1 8:1 12.65:1 11.55:1	84.50 78.93 78.93 84.50 84.50
76690 76695 76700 76705 76710	CSL690 CSL695 CSL700 CSL705 CSL710	20,000ct 20,000ct 20,000ct 20,000ct *20,000ct	800ct 1000ct 5000ct 10,000ct 20,000ct	200 250 1250 2500 -	.5 .5 .5 .5 .5	.4 .4 .4 .4 .4	.3 .3 .3 .3 .3	1.0 1.0 1.0 1.0 1.0	1560 1560 1560 1560 1560	108 121 672 1520 2727	27 30.5 168 380 682	5:1 4.47:1 2:1 1.41:1 1:1	10:1 8.94:1 4:1 2.83:1 -	84.50 84.50 84.50 84.50 87.93
76715 76720 76725 76730 76732	CSL715 CSL720 CSL725 CSL730 CSL732	25,000ct 25,000ct 30,000ct 30,000ct 30,000ct	500ct 1000ct 50ct 1200ct 500ct	125 250 12.5 300 125	.4 .4 .33 .33 .33	.4 .4 .33 .33 .33	.3 .3 .3 .3 .3	0.8 0.8 0.8 0.8 0.8	2170 2170 2400 2400 2400	68 120 7 156 68	17 30 1.75 39 17	7.07:1 5:1 24.5:1 5:1 7.75:1	14.14:1 10:1 49:1 10:1 15.5:1	84.50 84.50 87.93 87.93 87.93
76734 76735 76740 76745 76750	CSL734 CSL735 CSL740 CSL745 CSL750	30,000ct 30,000ct 30,000ct *30,000ct 40,000ct	200ct 5000ct 10,000ct 30,000ct 400ct	50 1250 2500 - 100	.33 .33 .33 .33 .25	.33 .33 .33 .33 .25	.3 .3 .3 .3 .25	0.8 0.8 0.8 0.8 0.7	2400 2400 2400 3000 3400	29 673 1520 3310 57	7.2 169 380 - 14.3	12.25:1 2.45:1 1.73:1 1:1 10:1	24.5:1 4.9:1 3.46:1 - 20:1	87.93 87.93 87.93 94.40 94.40

PICO Part Number Square Package	PICO Part Number Round Package	Primary Impedence Ohms	Secondary Impedence Ohms Split Windings		Power Watts			Primary Unbal DC Current ma	Prim DC Resist Ohms	Secondary DC Resistance OHMS		Turns Ratio PRIM/SEC		***** Prices 1-9 (US $)**
PICO Part Number Square Package	PICO Part Number Round Package	Primary Impedence Ohms	SER CONN	PAR CONN	1KHz and higher	400Hz and higher	300Hz and higher	Primary Unbal DC Current ma	Prim DC Resist Ohms	SER CONN	PAR CONN	SEC SER CONN	SEC PAR CONN	***** Prices 1-9 (US $)**
76755 76760 76765 76770 76775	CSL755 CSL760 CSL765 CSL770 CSL775	40,000ct 40,000ct 40,000ct *40,000ct 50,000ct	2000ct 4000ct 20,000ct 40,000ct 200ct	500 1000 5000 - 50	.25 .25 .25 .25 .2	.25 .25 .25 .25 .2	.25 .25 .25 .25 .2	0.7 0.7 0.7 0.7 0.6	3400 3400 3400 3400 4850	268 476 2700 4750 27	67 119 675 - 6.7	4.47:1 3.16:1 1.41:1 1:1 15.8:1	8.94:1 6.32:1 2.83:1 - 31.6:1	94.40 94.40 94.40 105.28 105.28
76777 76779 76780 76785 76787	CSL777 CSL779 CSL780 CSL785 CSL787	50,000ct 50,000ct 60,000ct 62,500ct 80,000ct	500ct 600ct 15,000ct 50ct 15,000ct	125 150 3750 12.5 3750	.2 .2 .16 .16 .12	.2 .2 .16 .16 .12	.2 .2 .16 .16 .12	0.6 0.6 0.5 0.5 0.4	4850 4850 5275 5445 6130	68 75 2250 8.7 2250	17 18.5 563 2.2 563	10:1 9.13:1 2:1 35.4:1 2.3:1	20:1 18.26:1 4:1 70.7:1 4.6:1	105.28 105.28 113.51 113.51 113.51
76790 76795 76800 76805 76810 76815	CSL790 CSL795 CSL800 CSL805 CSL810 CSL815	90,000ct 95,000ct 100,000ct 100,000ct 100,000ct 100,000ct	10,000ct 15,000ct 60ct 100ct 500ct 10,000ct	2500 3750 15 25 125 2500	.1 .1 .1 .1 .1 .1	.1 .1 .1 .1 .1 .1	.1 .1 .1 .1 .1 .1	0.4 0.4 0.4 0.4 0.4 0.4	8140 8400 8750 8750 8750 8750	1520 2250 9.2 15 68 1535	380 563 2.3 3.8 17 385	3:1 2.52:1 40.8:1 31.6:1 14.1:1 3.16:1	6:1 5.03:1 81.6:1 63.2:1 28.3:1 6.32:1	119.27 119.27 119.27 119.27 119.27 119.27

* INCLUDES ELECTROSTATIC SHIELD

***Discount Prices:

1-9 Net;
10-24 less 10%;
25-49 less 16%;
50-99 less 23%;
100-499 less 30%

Ordering Instructions:

No minimum.
Net 30 days F.O.B. Pelham, NY
Delivery--Sample orders typically ship within two weeks.

Features

Extreme resistance to thermal shock
Ultra Miniature size
PICO is approved QPL source (MIL-PRF-27)
Magnetic shields available
Electrostatic shielding can be added
Variation of standards designs available
Primary and secondary windings can be used either as input or output
Every unit in this catalog can be made with a 300 thermal cycle guarantee using PICO's special SR construction. Contact factory for details.

Schematics
for Transformers
with Electrostatic Shield

Schematics
for Transformers
with Split Secondaries

Schematics

Land Pattern

Click Here for Thru Hole Version of These Units

For immediate engineering assistance or to place an order:
Call Toll Free: 800-431-1064

PICO Electronics, Inc.

143 Sparks Ave. Pelham, NY 10803-1810
Tel: 914-738-1400 or Fax: 914-738-8225

Go back to Surface Mount Transformers and Inductors menu

Audio Transformers:

2 Ohm to 100K Ohm; 300Hz to 75KHz; 600 milliwatt at 1KHz

PICO Electronics, Inc.

Pico Electronics Inc.