型号 | 制造商 | 描述 | 操作 |
NRS5020T4R7MMGJ [更多] | TAIYO YUDEN | FIXED IND 4.7UH 2A 72 MOHM SMD RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
NRS5020T1R0NMGJ [更多] | TAIYO YUDEN | FIXED IND 1UH 3.6A 25.2 MOHM SMD RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
NRS5020T1R0NMGJ [更多] | TAIYO YUDEN | FIXED IND 1UH 3.6A 25.2 MOHM SMD RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
NRS5020T1R0NMGJ [更多] | TAIYO YUDEN | FIXED IND 1UH 3.6A 25.2 MOHM SMD RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
BTS50202EKAXUMA2 [更多] | Infineon Technologies AG | IC PWR SW HI-SIDE 2CH DSO14-40 RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
BTS50202EKAXUMA2 [更多] | Infineon Technologies AG | IC PWR SW HI-SIDE 2CH DSO14-40 RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
BTS50202EKAXUMA2 [更多] | Infineon Technologies AG | IC PWR SW HI-SIDE 2CH DSO14-40 RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
NRS5020T4R7MMGJV [更多] | TAIYO YUDEN | FIXED IND 4.7UH 2A 72 MOHM SMD RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
BTS50201EKAXUMA1 [更多] | Infineon Technologies AG | IC SWITCH PWR HISIDE DSO-14 RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
BTS50201EKAXUMA1 [更多] | Infineon Technologies AG | IC SWITCH PWR HISIDE DSO-14 RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
NRS5020T220MMGJV [更多] | TAIYO YUDEN | FIXED IND 22UH 1A 312 MOHM SMD RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
NRS5020T220MMGJV [更多] | TAIYO YUDEN | FIXED IND 22UH 1A 312 MOHM SMD RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
NRS5020T220MMGJV [更多] | TAIYO YUDEN | FIXED IND 22UH 1A 312 MOHM SMD RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
IMS5-02-02 [更多] | Samtec Inc | IMS5 RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
HS50 20R J [更多] | Ohmite Mfg Co | RES CHAS MNT 20 OHM 5% 50W RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
型号 | 制造商 | 描述 | 操作 |
NRS5020T1R0NMGJ [更多] | TAIYO YUDEN | 1UH 3.6A 25.2 MOHM SMD Fixed Inductor RoHS: Compliant | pbFree: Yes | 搜索 |
NRS5020T4R7MMGJ [更多] | TAIYO YUDEN | NRS Series 4.7 uH ?20% Surface Mount Power Inductor RoHS: Compliant | pbFree: Yes | 搜索 |
NRS5020T4R7MMGJV [更多] | TAIYO YUDEN | NRS Series 5020 4.7 uH ?20 % Tolerance 2 A Shielded Surface Mount Power Inductor RoHS: Compliant | pbFree: Yes | 搜索 |
ECS-50-20-7SX-TR [更多] | ECS International Inc | ECX-3SX Series 5 MHz ?30 ppm 20 pF -10 to +70 ?C Surface Mount Quartz Crystal RoHS: Compliant | pbFree: Yes | 搜索 |
NRS5020T6R8MMGJ [更多] | TAIYO YUDEN | NRS Series 6.8 uH 20% 1.65 A Shielded Surface Mount Power Inductor RoHS: Compliant | pbFree: Yes | 搜索 |
BTS50201EKAXUMA1 [更多] | Infineon Technologies AG | BTS50201EKA Series 28 V 20 mOhm Smart High-Side Power Switch - PG-DSO-14-47-EP RoHS: Compliant | pbFree: Yes | 搜索 |
BTS50201EKAXUMA1 [更多] | Infineon Technologies AG | BTS50201EKA Series 28 V 20 mOhm Smart High-Side Power Switch - PG-DSO-14-47-EP RoHS: Compliant | pbFree: Yes | 搜索 |
NRS5020T3R3NMGJ [更多] | TAIYO YUDEN | NRS Series 5020 3.3 uH ?30% Tolerance 2.4A Shielded Surface Mount Power Inductor RoHS: Compliant | pbFree: Yes | 搜索 |
IDCS5020ER6R8M [更多] | Vishay Intertechnologies | IDCS Series 5020 6.8 uH ?20 % Tol. 2.2 A Shielded Surface Mount Power Inductor RoHS: Compliant | pbFree: Yes | 搜索 |
ECS-50-20-5PX-TR [更多] | ECS International Inc | CSM-7X Series 50 MHz ?30 ppm 20 pF -10 to +70 ?C Surface Mount Quartz Crystal RoHS: Compliant | pbFree: Yes | 搜索 |
BTS50202EKAXUMA2 [更多] | Infineon Technologies AG | BTS50202EKA Series 18 V 5 A Smart High-Side Power Switch - PG-DSO-14-40-EP RoHS: Compliant | pbFree: Yes | 搜索 |
BTS50202EKAXUMA2 [更多] | Infineon Technologies AG | BTS50202EKA Series 18 V 5 A Smart High-Side Power Switch - PG-DSO-14-40-EP RoHS: Compliant | pbFree: Yes | 搜索 |
NRS5020T220MMGJ [更多] | TAIYO YUDEN | NRS Series 22uH 20% 1A 312 MOHM SMD Wirewound Inductor RoHS: Compliant | pbFree: Yes | 搜索 |
型号 | 制造商 | 描述 | 操作 |
S502-01M [更多] | Tripp Lite | Computer Cables Tripp Lite 1M Internal SAS Cable 4-in-1 32Pin SFF-8484 to 4 x 7Pin 3ft RoHS: Compliant | 搜索 |
HS50 20R J [更多] | Ohmite Mfg Co | Wirewound Resistors - Chassis Mount 50W 20 Ohms 5% RoHS: Compliant | 搜索 |
BTS5020-1EKA [更多] | Infineon Technologies AG | Power Switch ICs - Power Distribution PROFET RoHS: Compliant | 搜索 |
TYS5020220M-10 [更多] | LAIRD PLC | Fixed Inductors 22uH 20% -40C +125C RoHS: Compliant | 搜索 |
BTS5020-2EKA [更多] | Infineon Technologies AG | Power Switch ICs - Power Distribution PROFET +12V Smart Hi Side Pwr SW Dual RoHS: Compliant | 搜索 |
BTS50202EKAXUMA2 [更多] | Infineon Technologies AG | Power Switch ICs - Power Distribution PROFET +12V Smart Hi Side Pwr SW Dual RoHS: Compliant | 搜索 |
HS50 200R F [更多] | Ohmite Mfg Co | Wirewound Resistors - Chassis Mount 50W 200 OHM1% RoHS: Compliant | 搜索 |
ECS-50-20-7SX-TR [更多] | ECS International Inc | Crystals 5MHz 20pF 30ppm -10C +70C RoHS: Compliant | 搜索 |
BTS50201EKAXUMA1 [更多] | Infineon Technologies AG | Power Switch ICs - Power Distribution PROFET RoHS: Compliant | 搜索 |
TYS50203R6N-10 [更多] | LAIRD PLC | Fixed Inductors 3.6uH 30% -40C + 125C RoHS: Compliant | 搜索 |
IDCS5020ER330M [更多] | Vishay Intertechnologies | Fixed Inductors 33uH 20% RoHS: Compliant | 搜索 |
IDCS5020ER3R3M [更多] | Vishay Intertechnologies | Fixed Inductors 3.3uH 20% RoHS: Compliant | 搜索 |
TYS50202R2N-10 [更多] | LAIRD PLC | Fixed Inductors 2.2uH 30% -40C +125C RoHS: Compliant | 搜索 |
NRS5020T150MMGJ [更多] | TAIYO YUDEN | Fixed Inductors 5020 15uH 198mOhms +/-20%Tol 1100mA RoHS: Compliant | 搜索 |
NRS5020T2R2NMGJ [更多] | TAIYO YUDEN | Fixed Inductors 5020 2.2uH 42mOhms +/-30%Tol 2900mA RoHS: Compliant | 搜索 |
型号 | 制造商 | 描述 | 操作 |
ECS-50-20-4X [更多] | ECS International Inc | Crystal 5MHz 20pF 2-Pin HC-49/U - Bulk (Alt: ECS-50-20-4X) RoHS: Compliant | 搜索 |
DS07-19S-5020 [更多] | TE Connectivity Ltd | PLUG ASSY - Bulk (Alt: DS07-19S-5020) RoHS: Not Compliant | 搜索 |
NRS5020TR47NMGJ [更多] | TAIYO YUDEN | NRS5020TR47NMGJ - Tape and Reel (Alt: NRS5020TR47NMGJ) RoHS: Compliant | 搜索 |
NRS5020T 2R2NMGJ [更多] | TAIYO YUDEN | Ind Power Shielded Wirewound 2.2uH 30% 100KHz Ferrite 2.9A T/R - Tape and Reel (Alt: NRS5020T2R2NMGJ) RoHS: Compliant | 搜索 |
NRS5020T4R7MMGJV [更多] | TAIYO YUDEN | Ind Power Shielded Wirewound 4.7uH 20% 100KHz Ferrite 2A Embossed T/R - Tape and Reel (Alt: NRS5020T4R7MMGJV) RoHS: Compliant | 搜索 |
NRS5020T 1R0NMGJ [更多] | TAIYO YUDEN | Ind Power Shielded Wirewound 1uH 30% 100KHz Ferrite 3.6A T/R - Tape and Reel (Alt: NRS5020T1R0NMGJ) RoHS: Compliant | 搜索 |
ECS-50-20-5PX-TR [更多] | ECS International Inc | Crystal 5MHz 20pF 2-Pin SMD T/R - Tape and Reel (Alt: ECS-50-20-5PX-TR) RoHS: Compliant | 搜索 |
NRS5020T 3R3NMGJ [更多] | TAIYO YUDEN | Ind Power Shielded Wirewound 3.3uH 30% 100KHz Ferrite 2.4A T/R - Tape and Reel (Alt: NRS5020T3R3NMGJ) RoHS: Compliant | 搜索 |
NRS5020TR47NMGJV [更多] | TAIYO YUDEN | Ind Power Shielded Wirewound 470nH 30% 100KHz Ferrite 5A Embossed T/R - Tape and Reel (Alt: NRS5020TR47NMGJV) RoHS: Compliant | 搜索 |
LM NRS5020T 4R7MMGJ [更多] | TAIYO YUDEN | YTULM NRS5020T 4R7MMGJ (Alt: LM NRS5020T 4R7MMGJ) RoHS: Compliant | 搜索 |
GW P9LRS1.EM-PQPS-40S5-0-200-R18 [更多] | OSRAM Opto Semiconductors | OOSGWP9LRS1.EM-PQPS-40S5-0-200-R18 Q6511 (Alt: GWP9LRS1.EM-PQPS-40S5-0-200-R18) RoHS: Compliant | 搜索 |
GW P9LRS1.EM-PPPR-27S5-0-200-R18 [更多] | OSRAM Opto Semiconductors | OOSGWP9LRS1.EM-PPPR-27S5-0-200-R18 Q6511 (Alt: GWP9LRS1.EM-PPPR-27S5-0-200-R18) RoHS: Compliant | 搜索 |
IMS5-02-02 [更多] | Samtec Inc | Conn Housing SKT 2 POS 5mm ST Cable Mount Bulk (Alt: IMS5-02-02) RoHS: Compliant | 搜索 |
IDCS5020ER181M [更多] | Vishay Intertechnologies | Ind High Current Shielded Wirewound 180uH 20% 100KHz Ferrite 500mA T/R - Tape and Reel (Alt: IDCS5020ER181M) RoHS: Compliant | 搜索 |
LM NRS5020T 3R3NMGJ [更多] | TAIYO YUDEN | YTULM NRS5020T 3R3NMGJ (Alt: LM NRS5020T 3R3NMGJ) RoHS: Compliant | 搜索 |
型号 | 制造商 | 描述 | 操作 |
HS50 20K F [更多] | Ohmite Mfg Co | Wirewound Resistors - Chassis Mount 50W 20K OHM1% RoHS: Compliant | pbFree: Pb-Free | 搜索 |
HS50 20R F [更多] | Ohmite Mfg Co | Wirewound Resistors - Chassis Mount 50W 20 OHM1% RoHS: Compliant | pbFree: Pb-Free | 搜索 |
HS50 200R F [更多] | Ohmite Mfg Co | Wirewound Resistors - Chassis Mount 50W 200 OHM1% RoHS: Compliant | pbFree: Pb-Free | 搜索 |
HS50 20R J [更多] | Ohmite Mfg Co | Wirewound Resistors - Chassis Mount 50W 20 Ohms 5%
| 搜索 |
HS50 20R FL [更多] | Ohmite Mfg Co | Wirewound Resistors - Chassis Mount 20 OHM 1% 50W HS50 20R 1%L
| 搜索 |
型号 | 制造商 | 描述 | 操作 |
S50-200 [更多] | RAM Meter Inc | Shunt, 200A, 50MV RoHS: Compliant | 搜索 查看资料 |
ESBF-BS-50-200-10P [更多] | Festo | Drive, electrical, ESBF-BS-50-200-10P RoHS: Not Compliant | 搜索 查看资料 |
HS50 200R F [更多] | Arcol | Resistor, Wirewound, 200 Ohms, 50 W, 1%, Lug, TCR 100 ppm/DegC, Aluminum Housed RoHS: Not Compliant | 搜索 查看资料 |
ESBF-BS-50-200-20P [更多] | Festo | Drive, electrical, ESBF-BS-50-200-20P RoHS: Not Compliant | 搜索 查看资料 |
HS50 20R F [更多] | Arcol | Resistor, Wirewound, 20 Ohms, 50 W, 1%, Lug, TCR 100 ppm/DegC, Aluminum Housed RoHS: Not Compliant | 搜索 查看资料 |
HS50 20R J [更多] | Arcol | HS50 Al house wirewound resistor,20R 50W RoHS: Compliant | 搜索 查看资料 |
S502-01M [更多] | Tripp Lite | Tripp Lite 1M Internal SAS Cable 4-in-1 32Pin SFF-8484 to 4 x 7Pin 3ft RoHS: Compliant | 搜索 查看资料 |
ESBF-BS-50-200-5P [更多] | Festo | Drive, electrical, ESBF-BS-50-200-5P RoHS: Not Compliant | 搜索 查看资料 |
TCS-5020 [更多] | Quest Technology International Inc | 2-blade standard coax stripper for RG58/59/62/6 RoHS: Compliant | 搜索 查看资料 |
型号 | 制造商 | 描述 | 操作 |
NRS5020T150MMGJV [更多] | TAIYO YUDEN | Inductor Power Shielded Wirewound 15uH 20% 100KHz Ferrite 1.1A 198mOhm DCR Automotive T/R RoHS: Compliant | 搜索 |
NRS5020T4R7MMGJ [更多] | TAIYO YUDEN | Inductor Power Shielded Wirewound 4.7uH 20% 100KHz Ferrite 2A 72mOhm DCR T/R RoHS: Compliant | pbFree: Yes | 搜索 |
NRS5020T4R7MMGJ [更多] | TAIYO YUDEN | Inductor Power Shielded Wirewound 4.7uH 20% 100KHz Ferrite 2A 72mOhm DCR T/R RoHS: Compliant | pbFree: Yes | 搜索 |
NRS5020T4R7MMGJV [更多] | TAIYO YUDEN | Inductor RoHS: Compliant | 搜索 |
NRS5020T6R8MMGJ [更多] | TAIYO YUDEN | Inductor Power Shielded Wirewound 6.8uH 20% 100KHz Ferrite 1.65A 108mOhm DCR T/R RoHS: Compliant | pbFree: Yes | 搜索 |
BTS50201EKAXUMA1 [更多] | Infineon Technologies AG | Power Switch Hi Side 1-OUT 6.5A 0.02Ohm Automotive 14-Pin DSO EP T/R RoHS: Compliant | 搜索 |
NRS5020T2R2NMGJ [更多] | TAIYO YUDEN | Inductor Power Shielded Wirewound 2.2uH 30% 100KHz Ferrite 2.9A 42mOhm DCR T/R RoHS: Compliant | pbFree: Yes | 搜索 |
NRS5020T150MMGJ [更多] | TAIYO YUDEN | Inductor Power Shielded Wirewound 15uH 20% 100KHz Ferrite 1.2A 198mOhm DCR T/R RoHS: Compliant | pbFree: Yes | 搜索 |
NRS5020T1R5NMGJ [更多] | TAIYO YUDEN | Inductor Power Shielded Wirewound 1.5uH 30% 100KHz Ferrite 3.2A 31.2mOhm DCR T/R RoHS: Compliant | pbFree: Yes | 搜索 |
NRS5020T1R5NMGJ [更多] | TAIYO YUDEN | Inductor Power Shielded Wirewound 1.5uH 30% 100KHz Ferrite 3.2A 31.2mOhm DCR T/R RoHS: Compliant | pbFree: Yes | 搜索 |
ECS-50-20-4X [更多] | ECS | Crystal unit RoHS: Compliant | 搜索 |
NRS5020T3R3NMGJ [更多] | TAIYO YUDEN | Inductor Power Shielded Wirewound 3.3uH 30% 100KHz Ferrite 2.4A 57.6mOhm DCR T/R RoHS: Compliant | pbFree: Yes | 搜索 |
NRS5020T100MMGJ [更多] | TAIYO YUDEN | Inductor Power Shielded Wirewound 10uH 20% 100KHz Ferrite 1.45A 144mOhm DCR T/R RoHS: Compliant | pbFree: Yes | 搜索 |
NRS5020T100MMGJ [更多] | TAIYO YUDEN | Inductor Power Shielded Wirewound 10uH 20% 100KHz Ferrite 1.45A 144mOhm DCR T/R RoHS: Compliant | pbFree: Yes | 搜索 |
ECS-50-20-5PX-TR [更多] | ECS | Crystal unit RoHS: Compliant | 搜索 |
型号 | 制造商 | 描述 | 操作 |
S5020 [更多] | Hubbell Premise Wiring |
| 搜索 |
NRS5020T4R7MMGJ [更多] | TAIYO YUDEN |
| 搜索 |
HS5020KF [更多] | Ohmite Mfg Co |
| 搜索 |
型号 | 制造商 | 描述 | 操作 |
BTS5020-1EKA [更多] | Infineon Technologies AG | Power Switch Hi Side 6.5A Automotive 14-Pin DSO EP RoHS: Compliant | pbFree: Yes | 搜索 |
BTS50201EKAXUMA1 [更多] | Infineon Technologies AG | RoHS: Not Compliant | pbFree: No | 搜索 |
型号 | 制造商 | 描述 | 操作 |
NRS5020T150MMGJV [更多] | TAIYO YUDEN | RoHS: Compliant | 搜索 |
NRS5020T4R7MMGJ [更多] | TAIYO YUDEN | RoHS: Compliant | 搜索 |
NRS5020T220MMGJV [更多] | TAIYO YUDEN | RoHS: Compliant | 搜索 |
NRS5020T4R7MMGJV [更多] | TAIYO YUDEN | RoHS: Compliant | 搜索 |
NRS5020T4R7MMGJV [更多] | TAIYO YUDEN | RoHS: Compliant | 搜索 |
NRS5020T1R0NMGJV [更多] | TAIYO YUDEN | RoHS: Compliant | 搜索 |
NRS5020T1R5NMGJV [更多] | TAIYO YUDEN | RoHS: Compliant | 搜索 |
NRS5020T6R8MMGJ [更多] | TAIYO YUDEN | RoHS: Compliant | 搜索 |
BTS50201EKAXUMA1 [更多] | Infineon Technologies AG | Power Switch Hi Side 6.5A Automotive 14-Pin DSO EP T/R RoHS: Compliant | 搜索 |
BTS50201EKAXUMA1 [更多] | Infineon Technologies AG | Power Switch Hi Side 6.5A Automotive 14-Pin DSO EP T/R RoHS: Compliant | 搜索 |
NRS5020T2R2NMGJ [更多] | TAIYO YUDEN | RoHS: Compliant | 搜索 |
NRS5020T2R2NMGJ [更多] | TAIYO YUDEN | RoHS: Compliant | 搜索 |
NRS5020T150MMGJ [更多] | TAIYO YUDEN | RoHS: Compliant | 搜索 |
NRS5020T1R5NMGJ [更多] | TAIYO YUDEN | RoHS: Compliant | 搜索 |
ECS-50-20-4X [更多] | ECS International Inc | RoHS: Compliant | 搜索 |
型号 | 制造商 | 描述 | 操作 |
NRS5020T4R7MMGJ [更多] | TAIYO YUDEN | POWER INDUCTOR,4.7UH,2A,20%,37MHZ
| 搜索 |
NRS5020T4R7MMGJ [更多] | TAIYO YUDEN | POWER INDUCTOR,4.7UH,2A,20%,37MHZ
| 搜索 |
BTS50201EKAXUMA1 [更多] | Infineon Technologies AG | POWER LOAD SW, AEC-Q100, 13.5V, SOIC-14
| 搜索 |
HS50 200R F [更多] | Arcol | RESISTOR, WIREWOUND, 200R, 1%, AXIAL
| 搜索 |
HS50 20R F [更多] | Arcol | RESISTOR, WIREWOUND, 20R, 1%, AXIAL
| 搜索 |
TYS50201R0N-10 [更多] | LAIRD PLC | INDUCTOR, 1H, SMD
| 搜索 |
TYS50201R0N-10 [更多] | LAIRD PLC | INDUCTOR, 1H, SMD
| 搜索 |
NRS5020T100MMGJ [更多] | TAIYO YUDEN | INDUCTOR, SHIELDED, 10UH, 1.3A, SMD
| 搜索 |
HS50 200R F. [更多] | Arcol | RESISTOR, WIREWOUND, 200 OHM, 1%, AXIAL
| 搜索 |
TYS5020100M-10 [更多] | LAIRD PLC | INDUCTOR, 10H, SMD
| 搜索 |
TYS5020100M-10 [更多] | LAIRD PLC | INDUCTOR, 10H, SMD
| 搜索 |
TYS5020220M-10 [更多] | LAIRD PLC | INDUCTOR, 22H, SMD
| 搜索 |
TYS5020220M-10 [更多] | LAIRD PLC | INDUCTOR, 22H, SMD
| 搜索 |
BTS50202EKAXUMA2 [更多] | Infineon Technologies AG | POWER LOAD SW, HIGH SIDE, 28V, SOIC-14
| 搜索 |
BTS50202EKAXUMA2 [更多] | Infineon Technologies AG | POWER LOAD SW, HIGH SIDE, 28V, SOIC-14
| 搜索 |
型号 | 制造商 | 描述 | 操作 |
DCS-5020L/E [更多] | D-Link Corporation | Wireless camera CAT Catalogue Description 3: This wireless camera can be remotely controlled to pan and tilt, making it perfect for monitoring larger areas. Thanks to its built-in infrared LEDs, the camera produces clear, distinct shots even in the dark. CAT Catalogue Description 4: Compact, wireless PT network camera (802.11n/g/b)Ideal for monitoring your home, holiday home, office, shop etc.Easy access to live video from anywhere via Internetmydlink app for live video on iPhone, iPad and AndroidRemote-controlled panning and tilting (PT), also via app640 x 480 resolution, 30 frames per second Clear shots even in the dark, thanks to integrated infrared LEDsNoise and motion detection to trigger notificationsBuilt-in repeater increases WiFi range and coverage Angle of view: 66.22° Focal width: 2.2 mm LAN ports: 1x 10/100 Light sensitivity: 1 lux & IR mode Luminous intensity: F2.0 Special feature: Integrated WiFi repeater Zoom: -
| 搜索 查看资料 |
RWS5020JK-13 10R [更多] | YAGEO Corporation | Precision resistor, SMD Dimensions L x W x H: 12 x 5 x 4.5 mm Resistance technical notation: 10R Temperature range: -55...+200 °C Construction form: 5020 Resistor type: Wire resistor Resistance: 10 Ohm
| 搜索 查看资料 |