型号 | 制造商 | 描述 | 实时库存 | 起订量 | 实时单价 (含税) | 货期 (工作日) | 操作 |
TIP102G | onsemi | TRANS NPN DARL 100V 8A TO-220 | 4870 1起订 | 1+ 50+ 100+ 500+ 1000+ 2000+ 5000+ | ¥26.16 ¥12.66 ¥26.16 ¥9.03 ¥8.28 ¥7.66 ¥7.01 | 6-10天 | 购买 查看资料 |
TIP102 | STMicroelectronics | TRANS NPN DARL 100V 8A TO-220 | 4280 1起订 | 1+ 50+ 100+ 500+ 1000+ 2000+ 5000+ 10000+ | ¥18.69 ¥8.85 ¥18.69 ¥6.19 ¥5.64 ¥5.18 ¥4.68 ¥4.42 | 6-10天 | 购买 查看资料 |
TIP102 | onsemi | TRANS NPN DARL 100V 8A TO-220 | 0 1起订 | 6-10天 | 询价 查看资料 | ||
TIP102TU | onsemi | TRANS NPN DARL 100V 8A TO-220-3 | 0 1起订 | 6-10天 | 询价 查看资料 | ||
TIP102-BP | MCC (MICRO COMMERCIAL COMPONENTS) | TRANS NPN DARL 100V 8A TO-220AB | 0 1起订 | 6-10天 | 询价 查看资料 | ||
TIP102TSTU | onsemi | TRANS NPN DARL 100V 8A TO-220-3 | 0 1000起订 | 1000+ | ¥3.73 | 6-10天 | 询价 查看资料 |
TIP102-PBFREE | Central Semiconductor Corp | TRANS NPN DARL 100V 8A TO-220-3 | 0 1000起订 | 6-10天 | 询价 查看资料 |
型号 | 制造商 | 描述 | 实时库存 | 起订量 | 实时单价 (含税) | 货期 (工作日) | 操作 |
TIP102 | STMicroelectronics | Darlington Transistors NPN Power Darlington | 19238 1起订 | 1+ 10+ 100+ 500+ 1000+ 2000+ 5000+ 10000+ | ¥17.61 ¥8.08 ¥7.24 ¥5.74 ¥5.23 ¥4.91 ¥4.53 ¥4.28 | 6-10天 | 购买 |
TIP102G | onsemi | Darlington Transistors 8A 100V Bipolar Power NPN | 3104 1起订 | 1+ 10+ 100+ 500+ 1000+ 4800+ | ¥23.64 ¥10.23 ¥8.97 ¥7.8 ¥7.04 ¥6.65 | 6-10天 | 购买 |
型号 | 制造商 | 描述 | 实时库存 | 起订量 | 实时单价 (含税) | 货期 (工作日) | 操作 |
TIP102 | onsemi | Trans Darlington NPN 100V 8A 3-Pin(3+Tab) TO-220AB Rail | 0 10起订 | 10+ 25+ 50+ 100+ | ¥16.46 ¥15.05 ¥14.02 ¥12.48 | 1-2周 | 询价 |
型号 | 制造商 | 描述 | 实时库存 | 起订量 | 实时单价 (含税) | 货期 (工作日) | 操作 |
TIP102 | STMicroelectronics | Transistor Darlington NPN 100V 8A 3-Pin TO-220 Tube - Rail/Tube (Alt: TIP102) | 1194 1000起订 | 1000+ 1100+ 2100+ 5000+ 10000+ | ¥3.57 ¥3.42 ¥3.41 ¥3.39 ¥3.37 | 1-2周 | 购买 |
TIP102G | onsemi | Transistor Darlington NPN 100V 8A 3-Pin TO-220AB Rail - Rail/Tube (Alt: TIP102G) | 0 1600起订 | 1600+ 1700+ 3300+ 8000+ 16000+ | ¥7.42 ¥7.14 ¥6.89 ¥6.65 ¥6.43 | 1-2周 | 询价 |
TIP102-S | Bourns Inc | TRANS DARLINGTON NPN 100V 8A 3PIN TO-220 - Rail/Tube (Alt: TIP102-S) | 0 1600起订 | 1-2周 | 询价 |
型号 | 制造商 | 描述 | 实时库存 | 起订量 | 实时单价 (含税) | 货期 (工作日) | 操作 |
TIP102G | onsemi | Trans Darlington NPN 100V 8A 2000mW 3-Pin(3+Tab) TO-220AB Tube | 0 100起订 | 100+ 250+ 500+ 1000+ 2500+ | ¥11.71 ¥10.75 ¥10.59 ¥10.43 ¥9.93 | 1-2周 | 询价 |
TIP102 | STMicroelectronics | Trans Darlington NPN 100V 8A 2000mW 3-Pin(3+Tab) TO-220AB Tube | 0 1000起订 | 1000+ 2000+ 5000+ 10000+ 25000+ | ¥4.18 ¥4.14 ¥4.1 ¥4.06 ¥4.02 | 1-2周 | 询价 |
TIP102G | onsemi | Trans Darlington NPN 100V 8A 2000mW 3-Pin(3+Tab) TO-220AB Tube | 0 10起订 | 10+ 100+ 500+ 1000+ 2500+ 4800+ | ¥11.3 ¥10.57 ¥9.21 ¥8.32 ¥7.86 ¥7.56 | 1-2周 | 询价 |
TIP102G | onsemi | Trans Darlington NPN 100V 8A 2000mW 3-Pin(3+Tab) TO-220AB Tube | 0 50起订 | 50+ 100+ 500+ 1000+ 2500+ 4800+ | ¥11.8 ¥10.12 ¥8.82 ¥7.96 ¥7.52 ¥7.24 | 1-2周 | 询价 |
型号 | 制造商 | 描述 | 实时库存 | 起订量 | 实时单价 (含税) | 货期 (工作日) | 操作 |
TIP102 | STMicroelectronics | Transistor: NPN, bipolar, Darlington, 100V, 15A, 80W, TO220AB | 364 1起订 | 1+ 10+ 50+ 100+ 500+ | ¥11.65 ¥9.9 ¥8.25 ¥7.57 ¥7.41 | 1-3周 | 购买 |
TIP102G | onsemi | Transistor: NPN, bipolar, Darlington, 100V, 8A, 2W, TO220AB | 0 1起订 | 1+ 10+ 50+ 100+ 250+ 500+ 1000+ 2000+ 5000+ 10000+ | ¥14.66 ¥12.88 ¥11.15 ¥10.43 ¥9.55 ¥8.94 ¥8.37 ¥7.85 ¥7.22 ¥6.79 | 1-3周 | 询价 |
型号 | 制造商 | 描述 | 实时库存 | 起订量 | 实时单价 (含税) | 货期 (工作日) | 操作 |
TIP102 | Motorola Semiconductor Products | 8 A, 100 V, NPN, SI, POWER TRANSISTOR, TO-220AB | 230 1起订 | 1+ 20+ 76+ | ¥24.34 ¥14.61 ¥12.17 | 1-3周 | 购买 |
TIP102G | onsemi | TRANSISTOR,BJT,DARLINGTON,NPN,100V V(BR)CEO,8A I(C),TO-220AB, LEAD FREE | 100 1起订 | 1+ 15+ 68+ | ¥22.84 ¥13.71 ¥10.66 | 1-3周 | 购买 |
TIP102G | Motorola Semiconductor Products | TRANSISTOR,BJT,DARLINGTON,NPN,100V V(BR)CEO,8A I(C),TO-220AB, LEAD FREE | 55 1起订 | 1+ 3+ 7+ | ¥106.98 ¥71.32 ¥53.49 | 1-3周 | 购买 |
TIP102 | SGS Thomson | 8 A, 100 V, NPN, SI, POWER TRANSISTOR, TO-220AB | 10 1起订 | 1+ 3+ | ¥38.75 ¥31 | 1-3周 | 购买 |
TIP102 | National Semiconductor Corporation | 8 A, 100 V, NPN, SI, POWER TRANSISTOR, TO-220AB | 8 1起订 | 1+ 5+ | ¥21.77 ¥17.41 | 1-3周 | 购买 |
TIP102G | onsemi | TRANSISTOR,BJT,DARLINGTON,NPN,100V V(BR)CEO,8A I(C),TO-220AB, LEAD FREE | 5 1起订 | 1+ 3+ | ¥50.33 ¥37.75 | 1-3周 | 购买 |
TIP102 | Motorola Semiconductor Products | 8 A, 100 V, NPN, SI, POWER TRANSISTOR, TO-220AB | 3 1起订 | 1+ 3+ | ¥38.41 ¥30.73 | 1-3周 | 购买 |
TIP102 | Texas Instruments | 8 A, 100 V, NPN, SI, POWER TRANSISTOR, TO-220AB | 2 1起订 | 1+ | ¥36.58 | 1-3周 | 购买 |
TIP102 | Central Semiconductor Corp | 8 A, 100 V, NPN, SI, POWER TRANSISTOR, TO-220AB | 1 1起订 | 1+ | ¥15.37 | 1-3周 | 购买 |
型号 | 制造商 | 描述 | 操作 |
TIP102 [更多] | STMicroelectronics | TRANS NPN DARL 100V 8A TO-220 RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
TIP102G [更多] | ON Semiconductor | TRANS NPN DARL 100V 8A TO220AB RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
TIP102-BP [更多] | Micro Commercial Components | TRANS NPN DARL 100V 8A TO-220 RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
TIP102 [更多] | Central Semiconductor Corp | THROUGH-HOLE TRANSISTOR BIPOLAR RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
TIP102TU [更多] | ON Semiconductor | TRANS NPN DARL 100V 8A TO-220 RoHS: Compliant | pbFree: Yes | 搜索 查看资料 |
型号 | 制造商 | 描述 | 操作 |
TIP102G [更多] | ON Semiconductor | Darlington Transistors 8A 100V Bipolar Power NPN RoHS: Compliant | 搜索 |
TIP102 [更多] | STMicroelectronics | Darlington Transistors NPN Power Darlington RoHS: Compliant | 搜索 |
TIP102 [更多] | Central Semiconductor Corp | Darlington Transistors 100Vcbo 100Vceo 5.0V IC 9A 80W RoHS: Compliant | 搜索 |
TIP102 [更多] | ON Semiconductor | Darlington Transistors NPN Epitaxial Sil Darl RoHS: Compliant | 搜索 |
TIP 102 [更多] | B&K Precision Corporation | Test Probes INSULATED ALLIGATOR RoHS: Compliant | 搜索 |
TIP102-S [更多] | Bourns Inc | Darlington Transistors NPN DARLINGTON 100V 8A
| 搜索 |
TIP101G [更多] | ON Semiconductor | Darlington Transistors 8A 80V Bipolar Power NPN RoHS: Compliant | 搜索 |
TIP102TU [更多] | ON Semiconductor | Darlington Transistors NPN Epitaxial Sil Darl RoHS: Compliant | 搜索 |
TIP102-BP [更多] | Micro Commercial Components | Bipolar Transistors - BJT NPN 100V 8A 80W RoHS: Compliant | 搜索 |
TIP102TSTU [更多] | ON Semiconductor | Darlington Transistors Short Leads RoHS: Compliant | 搜索 |
型号 | 制造商 | 描述 | 操作 |
TIP102 [更多] | STMicroelectronics | Trans Darlington NPN 100V 8A 2000mW 3-Pin(3+Tab) TO-220 Tube RoHS: Compliant | 搜索 |
TIP102G [更多] | ON Semiconductor | Trans Darlington NPN 100V 8A 2000mW Automotive 3-Pin(3+Tab) TO-220AB Tube RoHS: Compliant | 搜索 |
TIP102G [更多] | ON Semiconductor | Trans Darlington NPN 100V 8A 2000mW Automotive 3-Pin(3+Tab) TO-220AB Tube RoHS: Compliant | 搜索 |
型号 | 制造商 | 描述 | 操作 |
TIP102 [更多] | ON Semiconductor | Trans Darlington NPN 100V 8A 3-Pin(3+Tab) TO-220AB Bulk - Bulk (Alt: TIP102) RoHS: Compliant | 搜索 |
TIP102 [更多] | STMicroelectronics | Trans Darlington NPN 100V 8A 3-Pin(3+Tab) TO-220 Tube (Alt: TIP102) RoHS: Compliant | 搜索 |
TIP102 [更多] | STMicroelectronics | Trans Darlington NPN 100V 8A 3-Pin(3+Tab) TO-220 Tube - Rail/Tube (Alt: TIP102) RoHS: Compliant | 搜索 |
TIP102 [更多] | STMicroelectronics | Trans Darlington NPN 100V 8A 3-Pin(3+Tab) TO-220 Tube (Alt: TIP102) RoHS: Compliant | 搜索 |
TIP102 [更多] | Central Semiconductor Corp | Darlington Power Transistor NPN 100V 15A 3-Pin TO-220 Box - Boxed Product (Development Kits) (Alt: TIP102) RoHS: Not Compliant | 搜索 |
TIP102G [更多] | ON Semiconductor | Trans Darlington NPN 100V 8A 3-Pin(3+Tab) TO-220AB Rail (Alt: TIP102G) RoHS: Compliant | 搜索 |
TIP102G [更多] | ON Semiconductor | Trans Darlington NPN 100V 8A 3-Pin(3+Tab) TO-220AB Rail (Alt: TIP102G) RoHS: Compliant | 搜索 |
TIP102G [更多] | ON Semiconductor | Trans Darlington NPN 100V 8A 3-Pin(3+Tab) TO-220AB Rail - Bulk (Alt: TIP102G) RoHS: Compliant | 搜索 |
TIP102G [更多] | ON Semiconductor | Trans Darlington NPN 100V 8A 3-Pin(3+Tab) TO-220AB Rail - Rail/Tube (Alt: TIP102G) RoHS: Compliant | 搜索 |
TIP102TU [更多] | ON Semiconductor | Trans Darlington NPN 100V 8A 3-Pin(3+Tab) TO-220AB Rail - Rail/Tube (Alt: TIP102TU) RoHS: Compliant | 搜索 |
TIP102TU [更多] | ON Semiconductor | Trans Darlington NPN 100V 8A 3-Pin(3+Tab) TO-220AB Rail (Alt: TIP102TU) RoHS: Compliant | 搜索 |
型号 | 制造商 | 描述 | 操作 |
TIP102 [更多] | ON Semiconductor | TRANSISTOR, BIPOL, NPN, 100V, TO-220AB-3
| 搜索 |
TIP102 [更多] | STMicroelectronics | TRANS NPN DARL 100V 8A TO-220
| 搜索 |
TIP102.. [更多] | ON Semiconductor | DARLINGTON TRANSISTOR, NPN, 100V, TO-220
| 搜索 |
TIP102TU [更多] | ON Semiconductor | DARLINGTON TRANSISTOR, NPN, 100V, TO-220
| 搜索 |
TIP102G [更多] | ON Semiconductor | DARLINGTON TRANSISTOR, TO-220
| 搜索 |
型号 | 制造商 | 描述 | 操作 |
TIP102 [更多] | STMicroelectronics | TIP102 Series NPN 100 V 8 A Complementary Power Darlington Transistor - TO-220-3 RoHS: Compliant | pbFree: Yes | 搜索 |
TIP102 [更多] | STMicroelectronics | TIP102 Series NPN 100 V 8 A Complementary Power Darlington Transistor - TO-220-3 RoHS: Compliant | pbFree: Yes | 搜索 |
TIP102 [更多] | STMicroelectronics | TIP102 Series NPN 100 V 8 A Complementary Power Darlington Transistor - TO-220-3 RoHS: Compliant | pbFree: Yes | 搜索 |
TIP102G [更多] | ON Semiconductor | TIP Series 100 V 8 A NPN Medium Power Darlington Silicon Transistor TO-220AB RoHS: Compliant | pbFree: Yes | 搜索 |
TIP102TU [更多] | ON Semiconductor | TIP Series 100 V 8 A NPN Surface Mount Epitaxial Darlington Transistor-TO-220-3 RoHS: Compliant | pbFree: Yes | 搜索 |
型号 | 制造商 | 描述 | 操作 |
TIP102 [更多] | STMicroelectronics | Bipolar Junction Transistor, Darlington, NPN Type, TO-220AB
| 搜索 |
TIP102 [更多] | Motorola Semiconductor Products | Bipolar Junction Transistor, Darlington, NPN Type, TO-220AB
| 搜索 |
TIP102 [更多] | INCHANGE | Bipolar Junction Transistor, Darlington, NPN Type, TO-220AB
| 搜索 |
TIP102 [更多] | Central Semiconductor Corp | Bipolar Junction Transistor, Darlington, NPN Type, TO-220AB
| 搜索 |
TIP102 [更多] | STMicroelectronics | Bipolar Junction Transistor, Darlington, NPN Type, TO-220AB
| 搜索 |
TIP102 [更多] | STMicroelectronics | Bipolar Junction Transistor, Darlington, NPN Type, TO-220AB
| 搜索 |
TIP102/ON SEMI [更多] | ON Semiconductor |
| 搜索 |
参考图片 | 型号/品牌 | 描述 / 技术参考 | 操作 |
![]() | TIP102 Fairchild Semiconductor | TRANS NPN DARL 100V 8A TO-220![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102. STMICROELECTRONICS | 原厂原装货 暂无PDF | 查价格库存 查看详细 |
![]() | TIP102-BP Micro Commercial Co | TRANSISTOR NPN 8A 100V TO-220![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102G ON Semiconductor | TRANS DARL NPN 8A 100V TO220AB![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102-S Bourns | 达林顿晶体管 NPN DARLINGTON 100V 8A 暂无PDF | 查价格库存 查看详细 |
![]() | TIP102TSTU Fairchild Semiconductor | TRANS DARL NPN 100V 8A TO-220![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102TU FAIRCHILD | TIP系列 NPN 80 W 100 V 8 A 外延硅 达林顿晶体管 - TO-220-3![]() ![]() | 查价格库存 查看详细 |
产品描述 / 参考图片 | 制造商零件编号 / 制造商 / 库存编号 | 操作 | ||
| 制造商零件编号: TIP102 品牌: STMicroelectronics 库存编号: 102-4095 | 搜索 | ||
| 制造商零件编号: TIP102 品牌: STMicroelectronics 库存编号: 485-9610 | 搜索 | ||
| 制造商零件编号: TIP102G 品牌: ON Semiconductor 库存编号: 545-0494 | 搜索 | ||
| 制造商零件编号: TIP102TU 品牌: Fairchild Semiconductor 库存编号: 808-0489 | 搜索 |
参考图片 | 制造商 / 描述 / 型号 / 仓库库存编号 / 别名 | 操作 | |
![]() | STMicroelectronics TRANS NPN DARL 100V 8A TO-220 详细描述:Bipolar (BJT) Transistor NPN - Darlington 100V 8A 2W Through Hole TO-220AB 型号:TIP102 仓库库存编号:497-2546-5-ND 别名:497-2546-5 | 无铅 | 搜索 |
![]() | Fairchild/ON Semiconductor TRANS NPN DARL 100V 8A TO-220 详细描述:Bipolar (BJT) Transistor NPN - Darlington 100V 8A 2W Through Hole TO-220-3 型号:TIP102 仓库库存编号:TIP102-ND | 无铅 | 搜索 |
![]() | ON Semiconductor TRANS NPN DARL 100V 8A TO220AB 详细描述:Bipolar (BJT) Transistor NPN - Darlington 100V 8A 2W Through Hole TO-220AB 型号:TIP102G 仓库库存编号:TIP102GOS-ND 别名:TIP102GOS | 无铅 | 搜索 |
![]() | Micro Commercial Co TRANS NPN DARL 100V 8A TO-220 详细描述:Bipolar (BJT) Transistor NPN - Darlington 100V 8A 80W Through Hole TO-220 型号:TIP102-BP 仓库库存编号:TIP102-BP-ND 别名:TIP102BP | 无铅 | 搜索 |
![]() | Central Semiconductor Corp THROUGH-HOLE TRANSISTOR BIPOLAR 详细描述:Bipolar (BJT) Transistor NPN - Darlington 4MHz Through Hole TO-220-3 型号:TIP102 仓库库存编号:TIP102CS-ND 别名:TIP102CS | 搜索 | |
![]() | ON Semiconductor TRANS NPN DARL 100V 8A TO220AB 详细描述:Bipolar (BJT) Transistor NPN - Darlington 100V 8A 2W Through Hole TO-220AB 型号:TIP102 仓库库存编号:TIP102OS-ND 别名:TIP102OS | 含铅 | 搜索 |
![]() | Fairchild/ON Semiconductor TRANS NPN DARL 100V 8A TO-220 详细描述:Bipolar (BJT) Transistor NPN - Darlington 100V 8A 2W Through Hole TO-220-3 型号:TIP102TU 仓库库存编号:TIP102TU-ND | 无铅 | 搜索 |
![]() | Fairchild/ON Semiconductor TRANS NPN DARL 100V 8A TO-220 详细描述:Bipolar (BJT) Transistor NPN - Darlington 100V 8A 2W Through Hole TO-220-3 型号:TIP102TSTU 仓库库存编号:TIP102TSTU-ND | 无铅 | 搜索 |
参考图片 | 制造商 / 说明 / 型号 / 仓库库存编号 | 操作 | |
![]() | ON Semiconductor ON Semi TIP102G NPN Darlington Transistor, 8 A 100 V HFE:200, 3-Pin TO-220AB 型号:TIP102G 仓库库存编号:70100074 | ![]() | 搜索 |
参考图片 | 型号/品牌 | 描述 / 技术参考 | 操作 |
![]() | TIP102 Fairchild Semiconductor | TRANS NPN DARL 100V 8A TO-220![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102 STMicroelectronics | TRANS NPN DARL 100V 8A TO-220![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102 ON Semiconductor | TRANS DARL NPN 8A 100V TO220AB![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102-BP Micro Commercial Co | TRANSISTOR NPN 8A 100V TO-220![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102G ON Semiconductor | TRANS DARL NPN 8A 100V TO220AB![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102TSTU Fairchild Semiconductor | TRANS DARL NPN 100V 8A TO-220![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102TU Fairchild Semiconductor | TRANS NPN DARL 100V 8A TO-220![]() ![]() | 查价格库存 查看详细 |
参考图片 | 型号/品牌 | 描述 / 技术参考 | 操作 |
![]() | TIP102-BP Micro Commercial Co | TRANSISTOR NPN 8A 100V TO-220![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102-BP Micro Commercial Components (MCC) | 两极晶体管 - BJT NPN 100V 8A 80W![]() 暂无PDF | 查价格库存 查看详细 |
![]() | TIP102 Fairchild Semiconductor | TRANS NPN DARL 100V 8A TO-220![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102G ON Semiconductor | TRANS DARL NPN 8A 100V TO220AB![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102 MULTICOMP | 达林顿???体管 TO-220![]() | 查价格库存 查看详细 |
![]() | TIP102 ON Semiconductor | 达林顿晶体管,NPN,100V,8A,TO220AB![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102-S Bourns | 达林顿晶体管 NPN DARLINGTON 100V 8A 暂无PDF | 查价格库存 查看详细 |
![]() | TIP102 STMICROELECTRONICS | 达林顿双极晶体管![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102TSTU Fairchild Semiconductor | TRANS DARL NPN 100V 8A TO-220![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102TU FAIRCHILD | TIP系列 NPN 80 W 100 V 8 A 外延硅 达林顿晶体管 - TO-220-3![]() ![]() | 查价格库存 查看详细 |
![]() | TIP102TU Fairchild Semiconductor | TRANS NPN DARL 100V 8A TO-220![]() ![]() | 查价格库存 查看详细 |
进行最后一道重要生产流程所在的国家