SW -For 150KHz Simple Switcher
| SW Series low cost toroidal inductors, designed for use with National Semiconductor's 150kHz Simple SwitcherTM Part Numbers LM259X-L1 through LM259X-L44 and LM258X-L |  |
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Features
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Electrical Specifications at 25°C
| Part Number | National Part Number |
Rated Current (IDC) |
LN (µH) ±20% | ETOP (V-µSec) Max. | DCR (Ohm) |
Energy Storage (µJ) |
Package | |
| "S" | "C" & "T" | |||||||
| SW_-0.13-259 SW_-0.16-178 |
LM-259X-L1 LM-259X-L2 |
0.13 0.16 |
259 187 |
23.1 16.5 |
3.40 2.80 |
2 2 |
S1 | T1 |
| SW_-0.20-118 SW_-0.25-79 SW_-0.30-55 |
LM-259X-L3 LM-259X-L4 LM-259X-L5 |
0.20 0.25 0.30 |
118 79 55 |
13.2 9.9 6.6 |
1.80 1.50 1.00 |
2 2 2 |
||
| SW_-0.34-39 SW_-0.45-26 |
LM-259X-L6 LM-259X-L7 |
0.34 0.45 |
39 26 |
6.6 6.6 |
0.80 0.62 |
2 3 |
||
| SW_-0.20-374 SW_-0.25-256 SW_-0.30-176 |
LM-259X-L8 LM-259X-L9 LM-259X-L 10 |
0.20 0.25 0.30 |
374 256 176 |
75.9 33.0 26.4 |
2.70 2.20 1.40 |
7 8 8 |
S2 | T2 |
| SW_-0.38-118 SW_-0.46-78 SW_-0.56-55 |
LM-259X-L 11 LM-259X-L 12 LM-259X-L 13 |
0.38 0.46 0.56 |
118 78 55 |
19.8 16.5 13.2 |
1.20 0.80 0.50 |
9 8 9 |
||
| SW_-0.68-39 SW_-0.84-26 SW_-1.02-17 |
LM-259X-L 14 LM-259X-L 15 LM-259X-L 16 |
0.68 0.84 1.02 |
39 26 17 |
9.9 6.6 6.6 |
0.30 0.20 0.10 |
9 9 9 |
||
| SW_-0.36-375 SW_-0.44-252 SW_-0.54-173 |
LM-259X-L 17 LM-259X-L 18 LM-259X-L 19 |
0.36 0.44 0.54 |
375 252 173 |
75.9 49.5 36.3 |
1.30 0.90 0.60 |
24 24 25 |
S3 | T3 |
| SW_-0.67-115 SW_-0.82-78 SW_-1.0-54 |
LM-259X-L20 LM-259X-L21 LM-259X-L22 |
0.67 0.82 1.00 |
115 78 54 |
29.7 23.1 16.5 |
0.40 0.30 0.20 |
26 26 27 |
||
| SW_-1.2-38 SW_-1.48-26 SW_-1.81-18 |
LM-259X-L23 LM-259X-L24 LM-259X-L25 |
1.20 1.48 1.81 |
38 26 18 |
13.2 9.9 9.9 |
0.10 0.10 0.06 |
27 28 29 |
||
| SW_-0.68-377 SW_-0.83-248 SW_-1.02-168 |
LM-259X-L26 LM-259X-L27 LM-259X-L28 |
0.68 0.83 1.02 |
377 248 168 |
75.9 72.6 56.1 |
1.00 0.60 0.40 |
87 85 87 |
S4 | T4 |
| SW_-1.26-112 SW_-1.54-77 SW_-1.87-53 |
LM-259X-L29 LM-259X-L30 LM-259X-L31 |
1.26 1.54 1.87 |
112 77 53 |
42.9 33.0 26.4 |
0.30 0.20 0.13 |
89 91 93 |
||
| SW_-2.24-37 | LM-259X-L32 | 2.24 | 37 | 19.8 | 0.10 | 93 | ||
| SW_-2.74-24 | LM-259X-L33 | 2.74 | 24 | 16.5 | 0.07 | 90 | ||
| SW_-3.00-17 | LM-259-L34 | 3.00 | 17 | 13.2 | 0.05 | 77 | S4 | C1 - T4 |
| SW_-1.5-250 SW_-1.81-168 |
LM-259X-L35 LM-259X-L36 |
1.50 1.81 |
250 168 |
72.6 75.9 |
0.23 0.18 |
281 275 |
S6 | C3 |
| SW_-2.22-114 SW_-2.70-77 SW_-3.00-53 |
LM-259X-L37 LM-259X-L38 LM-259X-L39 |
2.22 2.70 3.00 |
114 77 53 |
62.7 52.8 42.9 |
0.10 0.09 0.08 |
281 281 239 |
||
| SW_-3.00-38 | LM-259X-L40 | 3.00 | 38 | 29.7 | 0.05 | 171 | ||
| SW_-3.00-25 | LM-259X-L41 | 3.00 | 25 | 19.8 | 0.04 | 113 | S5 | T5 - C2 |
| SW_-2.50-167 SW_-3.00-110 |
LM-259X-L42 LM-259X-L43 |
2.50 3.00 |
167 110 |
75.9 75.9 |
0.14 0.09 |
522 495 |
S6 | C4 |
| SW_-3.00-77 SW_-4.50-19 |
LM-259X-L44 LM-258X-L |
3.00 4.50 |
77 19 |
59.4 32.0* |
0.08 0.02 |
347 192 |
C3 | |
*Note: ETOP for PIN SW_-4.50-19 is based on a frequency of 100kHz. All other items are rated at 150kHz.
Simple SwitcherTM is a trademark of National Semiconductor Corporation.
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| Mounting Style | Size Code | Dimensions - Inches ±0.010 (mm ±0.25)) | ||||
| A | B | C | D | E | ||
| "S" SMD |
S1 | 0.339 (8.60) |
0.339 (8.60) |
0.185 (4.70) |
0.268 (6.80) |
0.378 (9.60) |
| S2 | 0.394 (10.0) |
0.394 (10.0) |
0.256 (6.50) |
0.339 (8.60) |
0.402 (10.2) |
|
| S3 | 0.503 (12.8) |
0.503 (12.8) |
0.276 (7.00) |
0.449 (11.4) |
0.512 (13.0) |
|
| S4 | 0.591 (15.0) |
0.591 (15.0) |
0.315 (8.00) |
0.508 (12.9) |
0.551 (14.0) |
|
| S5 | 0.669 (17.0) |
0.701 (17.8) |
0.390 (9.91) |
0.591 (15.0) |
0.591 (15.0) |
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| S6 | 0.925 (23.5) |
0.925 (23.5) |
0.496 (12.6) |
0.827 (21.0) |
0.689 (17.5) |
|
| "T" TH |
T1 | 0.339 (8.60) |
0.339 (8.60) |
0.216 (5.50) |
0.250 (6.35) |
0.250 (6.35) |
| T2 | 0.394 (10.0) |
0.394 (10.0) |
0.287 (7.30) |
0.300 (7.62) |
0.300 (7.62) |
|
| T3 | 0.503 (12.8) |
0.503 (12.8) |
0.307 (7.80) |
0.375 (9.52) |
0.375 (9.52) |
|
| T4 | 0.591 (15.0) |
0.591 (15.0) |
0.346 (8.80) |
0.500 (12.70) |
0.299 (7.62) |
|
| T5 | 0.669 (17.0) |
0.701 (17.8) |
0.422 (10.71) |
0.600 (15.24) |
0.400 (10.16) |
|
| Mounting Style | Size Code | Dimensions - Inches ±0.01 (mm ±0.25) | |||
| C | D | E | X = Coil O.D. + | ||
| "C" Vertical Clip Mount |
C1 | 0.580 (14.73) |
0.340 (8.64) |
0.220 (5.58) |
0.110 (2.80) |
| C2 | 0.650 (16.5) |
0.449 (11.4) |
0.299 (7.60) |
0.110 (2.80) |
|
| C3 | 0.827 (21.0) |
0.449 (11.4) |
0.299 (7.60) |
0.110 (2.80) |
|
| C4 | 0.949 (24.1) |
0.598 (15.2) |
0.449 (11.4) |
0.110 (2.80) |
|
| C5 | 1.252 (31.8) |
0.701 (17.8) |
0.500 (12.7) |
0.130 (3.30) |
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SW Series Cross Reference for National's 150kHz Simple SwitcherTM
Pulse Engineering - Talema Electronic
| Pulse Part Number | National Part Number | Specified L(µH) | Idc (Amps) | Talema Part Number | |||
| THT | SMD | SMD | TH-Flat | TH-Vertical | |||
| PE-53801 PE-53802 |
PE-53801S PE-53802S |
LM259X-L1 LM259X-L2 |
259 178 |
0,13 0,16 |
SWS-0.13-259 SWS-0.16-178 |
SWT-0.13-259 SWT-0.16-178 |
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| PE-53803 PE-53804 PE-53805 |
PE-53803S PE-53804S PE-53805S |
LM259X-L3 LM259X-L4 LM259X-L5 |
118 79 55 |
0,20 0,25 0,30 |
SWS-0.20-118 SWS-0.25-79 SWS-0.30-55 |
SWT-0.20-118 SWT-0.25-79 SWT-0.30-55 |
|
| PE-53806 PE-53807 |
PE-53806S PE-53807S |
LM259X-L6 LM259X-L7 |
39 26 |
0,34 0,45 |
SWS-0.34-39 SWS-0.45-26 |
SWT-0.34-39 SWT-0.45-26 |
|
| PE-53808 PE-53809 PE-53810 |
PE-53808S PE-53809S PE-53810S |
LM259X-L8 LM259X-L9 LM259X-L10 |
374 256 |
0,20 | SWS-0.20-374 SWS-0.25-256 SWS-0.30-176 |
SWT-0.20-374 SWT-0.25-256 SWT-0.30-176 |
|
| PE-53811 PE-53812 PE-53813 |
PE-53811S PE-53812S PE-53813S |
LM259X-L11 LM259X-L12 LM259X-L13 |
118 78 55 |
0,38 0,46 0,56 |
SWS-0.38-118 SWS-0.46-78 SWS-0.56-55 |
SWT-0.38-118 SWT-0.46-78 SWT-0.56-55 |
|
| PE-53814 PE-53815 PE-53816 |
PE-53814S PE-53815S PE-53816S |
LM259X-L14 LM259X-L15 LM259X-L16 |
39 26 17 |
0,68 0,84 1,02 |
SWS-0.68-39 SWS-0.84-26 SWS-1.02-17 |
SWT-0.68-39 SWT-0.84-26 SWT-1.02-17 |
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| PE-53817 PE-53818 PE-53819 |
PE-53817S PE-53818S PE-53819S |
LM259X-L17 LM259X-L18 LM259X-L19 |
375 252 173 |
0,36 0,44 0,54 |
SWS-0.36-375 SWS-0.44-252 SWS-0.54-173 |
SWT-0.36-375 SWT-0.44-252 SWT-0.54-173 |
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| PE-53820 PE-53821 PE-53822 |
PE-53820S PE-53821S PE-5322S |
LM259X-L20 LM259X-L21 LM259X-L22 |
115 78 54 |
0,67 0,82 1,00 |
SWS-0.67-115 SWS-0.82-78 SWS-1.00-54 |
SWT-0.67-115 SWT-0.82-78 SWT-1.00-54 |
|
| PE-53823 PE-53824 PE-53825 |
PE-53823S PE-53824S PE-53825S |
LM259X-L23 LM259X-L24 LM259X-L25 |
38 26 18 |
1,20 1,48 1,81 |
SWS-1.20-38 SWS-1.48-26 SWS-1.81-18 |
SWT-1.20-38 SWT-1.48-26 SWT-1.81-18 |
|
| PE-53826 PE-53827 PE-53828 |
PE-53826S PE-53827S PE-53828S |
LM259X-L26 LM259X-L27 LM259X-L28 |
377 248 168 |
0,68 0,83 1,02 |
SWS-0.68-377 SWS-0.83-248 SWS-1.02-168 |
SWT-0.68-377 SWT-0.83-248 SWT-1.02-168 |
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| PE-53829 PE-53830 PE-53831 |
PE-53829S PE-53830S PE-53831S |
LM259X-L29 LM259X-L30 LM259X-L31 |
112 77 53 |
1,26 1,54 1,87 |
SWS-1.26-112 SWS-1.54-77 SWS-1.87-53 |
SWT-1.26-112 SWT-1.54-77 SWT-1.87-53 |
|
| PE-53932 PE-53933 PE-53934 |
PE-53932S PE-53933S PE-53934S |
LM259X-L32 LM259X-L33 LM259X-L34 |
37 24 17 |
2,24 2,74 3,00 |
SWS-2.24-37 SWS-2.74-24 SWS-3.00-17 |
SWT-2.24-37 SWT-2.74-24 SWT-3.00-17 |
SWC-3.00-17 |
| PE-53935 PE-54036 |
PE-53935S PE-54036S |
LM259X-L35 LM259X-L36 |
250 168 |
1,50 1,81 |
SWS-1.50-250 SWS-1.81-168 |
SWC-1.50-250 SWC-1.81-168 |
|
| PE-54037 PE-54038 PE-54039 |
PE-54037S PE-54038S PE-54039S |
LM259X-L37 LM259X-L38 LM259X-L39 |
114 77 53 |
2,22 2,70 3,00 |
SWS-2.22-114 SWS-2.70-77 SWS-3.00-53 |
SWC-2.22-114 SWC-2.70-77 SWC-3.00-53 |
|
| PE-54040 PE-54041 |
PE-54040S PE-54041S |
LM259X-L40 LM259X-L41 |
38 25 |
3,00 3,00 |
SWS-3.00-38 SWS-3.00-25 |
SWT-3.00-25 |
SWC-3.00-38 SWC-3.00-25 |
| PE-54042 PE-54043 |
- - |
LM259X-L42 LM259X-L43 |
167 110 |
2,50 3,00 |
SWS-2.50-167 SWS-3.00-110 |
SWC-2.50-167 SWC-3.00-110 |
|
| PE-54044 PE-53900 |
PE-54044S - |
LM259X-L44 LM258X-L |
77 19 |
3,00 4,50 |
SWS-3.00-77 SWS-4.50-19 |
SWC-3.00-77 SWC-4.50-19 |
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