上传Bom文件
AiBOM
登录
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
0
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
TPS72615KTT VS TPS72515KTT
TPS72615KTTRG3 VS TPS72515KTT
TPS72615KTTT VS TPS72515KTT
TPS72615KTTR VS TPS72515KTT
TPS72515KTTRG3 VS TPS72515KTT
TPS72515KTTTG3 VS TPS72515KTT
TPS72515KTTR VS TPS72515KTTRG3
TPS72515KTTRG3 VS TPS72615KTT
TPS72615KTTRG3 VS TPS72515KTTRG3
TPS72615KTTT VS TPS72515KTTRG3
TPS72615KTTR VS TPS72515KTTRG3
TPS72515KTTTG3 VS TPS72515KTTRG3
TPS72515KTTR VS TPS72515KTTTG3
TPS72515KTTTG3 VS TPS72615KTT
TPS72615KTTRG3 VS TPS72515KTTTG3
TPS72615KTTT VS TPS72515KTTTG3
TPS72615KTTR VS TPS72515KTTTG3
TPS72515KTTR VS TPS72615KTTRG3
TPS72615KTTRG3 VS TPS72615KTT
TPS72615KTTR VS TPS72615KTTRG3
TPS72515KTTR VS TPS72615KTTR
TPS72615KTTR VS TPS72615KTT
TPS72515KTTR VS TPS72615KTT
TPS72615KTTT VS TPS72615KTT
TPS72515KTTR VS TPS72615KTTT
TNY267PN VS FSDM0265RNB
TOP224YN VS FSDM0265RNB
TOP222YN VS FSDM0265RNB
TNY268PN VS FSDM0265RNB
TOP244YN VS FSDM0265RNB
TNY266PN VS FSDM0265RNB
TNY264PN VS FSDM0265RNB
TPS77012DBVTG4 VS TPS77012DBVT
TPS77012DBVTG4 VS TPS77012DBVRG4
TPS77012DBVR VS TPS77012DBVRG4
TPS77012DBVT VS TPS77012DBVRG4
TN0620N3-G VS 2N6660
TN0620N3-G VS 2N7002,215
TN0620N3-G VS 2N6661
TN0620N3-G VS 2N7002K
TN0620N3-G VS FDN359BN
TN0620N3-G VS 2N7002T
TN0620N3-G VS BSS123
TN0620N3-G VS MMBF170
TN0620N3-G VS BST82,215
TLC2272QPWRQ1 VS TLV2432ID
TLC2272AQPWRQ1 VS TLC2272QPWRQ1
TLC2272IPWR VS TLC2272QPWRQ1
TLC2272ACPWR VS TLC2272QPWRQ1
TLC2272QPWRQ1 VS TLV2432AID
TLC2272QPWRQ1 VS TLC2272ACPW
TLV2432CDR VS TLC2272QPWRQ1
TLC2272QPWRQ1 VS TLC2272IPW
TLC2272QPWRQ1 VS TLC2272CPW
TC32MCZB VS APX823-31W5G-7
TPS3823-30DBVR VS APX823-31W5G-7
TPS3828-50DBVT VS APX823-31W5G-7
TPS3823-30DBVT VS APX823-31W5G-7
TPS3828-50DBVR VS APX823-31W5G-7
TPS79428DGNT VS TPS79428DGNTG4
TPS3809K33DBVT VS V62/06636-01XE
TPS3809K33DBVR VS V62/06636-01XE
TPS3809L30DBVR VS V62/06636-01XE
TPS3705-33D VS V62/06636-01XE
TPS3809I50DBVR VS V62/06636-01XE
TPS3705-33DR VS V62/06636-01XE
TPS3707-33DGN VS V62/06636-01XE
TLV809K33DBVR VS V62/06636-01XE
TPS3809J25DBVR VS V62/06636-01XE
TPS3705-33DGN VS V62/06636-01XE
TLE2021ID VS V62/04755-07XE
TLE2021IDR VS V62/04755-07XE
TLE2021CDR VS V62/04755-07XE
TLE2021QDRG4Q1 VS V62/04755-07XE
TLE2021ACD VS V62/04755-07XE
TLE2021MD VS V62/04755-07XE
TLE2021AID VS V62/04755-07XE
TLE2021CD VS V62/04755-07XE
TC913ACOA VS TLC2652AMJGB
TC913BCOA VS TLC2652AMJGB
TLC2652AMJGB VS TC913BCPA
TLC2652ACP VS TLC2652AMJGB
TLC2652CP VS TLC2652AMJGB
TLC2652AMJGB VS ICL7650SCPA-1Z
TLC2652AI-8D VS TLC2652AMJGB
TC1270SERCTR VS TC1270TERCTR
TPS2310IPWR VS TPS2310IPWRG4
TPS2310IPWR VS TPS2310IPWG4
TLV3402IDGK VS LTC1440IS8
TLV3402CDGKR VS LTC1440IS8
TLV3402IDGKR VS LTC1440IS8
TLV3402CDGK VS LTC1440IS8
TS4436AICT VS ZXRE060AET5TA
TS4436AICT VS ZXRE060H5TA
TS4436ICT VS TS4436AICT
TS4436AICT VS ZXRE060AH5TA
TS4436AICT VS ZXRE060ET5TA
TS4436ICT VS ZXRE060AH5TA
TS4436ICT VS ZXRE060ET5TA
TS4436ICT VS ZXRE060AET5TA
TS4436ICT VS ZXRE060H5TA
TPS3123J18DBVR VS TPS3123J18DBVRG4
TLC549CDR VS TLC549IDR
TLC549CD VS TLC549IDR
TCM811SERCTR VS ADM811SARTZ-REEL
TCM811SERCTR VS ADM811SART-REEL
TLC2652AC-8D VS TLC2652AMJGB
TLV7101828DSET VS TLV7101828QDSERQ1
TPS74001DPTR VS TPS74001DPTT
TPS74001DGKR VS TPS74001DPTR
TLV2781CDBVR VS TLV2781CDBVRG4
TLV2781CDBVR VS TLV2781CDBVTG4
TLV2781CDBVR VS AD8631ARTZ-R2
TLV2781CDBVR VS AD8631ARTZ-REEL
TLV2781CDBVR VS TLV2781IDBVTG4
TLV2781IDBVR VS TLV2781CDBVR
TLV2781CDBVR VS TLV2781IDBVT
TLV2781CDBVR VS TLV2781IDBVRG4
TC7S04F(TE85L) VS NC7S04M5X
TC7S04F(TE85L) VS NC7SU04M5X
TC7S04F VS TC7S04F(TE85L)
TC7S04F(TE85L) VS NC7S04M5
TC7S04F VS NC7S04M5X
TC7S04F VS NC7SU04M5
TC7S04F VS NC7SU04M5X
TC7S04F VS NC7S04M5
TLV431ACLPR VS TLV431AILPR
TLV431AILPR VS TLV431ACLP
TLVH431CLPR VS TLV431AILPR
TLV431ACLPR VS TLV431AILP
TLVH431CLPR VS TLV431ACLPR
TLV431QPK VS TL4050B50QDBZRQ1
TL4050C50QDBZRQ1 VS TL4050B50QDBZRQ1
TLVH431AQPK VS TL4050B50QDBZRQ1
TLV431BQPK VS TL4050B50QDBZRQ1
TLVH432BCPK VS TL4050B50QDBZRQ1
TLVH431BCPK VS TL4050B50QDBZRQ1
TLVH432QPK VS TL4050B50QDBZRQ1
TLVH431BIPK VS TL4050B50QDBZRQ1
TLVH431CLPR VS TLV431ACLP
TLVH431CLPR VS TLV431AILP
TC1413NEPA VS TC1413EPA
THS4141IDR VS THS4141CDR
THS4141IDR VS THS4141CDRG4
THS4141IDR VS THS4141IDRG4
THS4141CD VS THS4141IDR
TMP175AIDGKTG4 VS TMP75AIDG4
TMP175AIDGKR VS TMP75AIDG4
TCN75-5.0MOA713 VS LM75ADP,118
TLC1541CDWR VS TLC1541CDWG4
TLC1541CDWG4 VS TLC1541IDWRG4
TLC1541IDW VS TLC1541CDWG4
TLC1541CDWG4 VS TLC1541IDWG4
TLC1541CDWRG4 VS TLC1541CDWG4
TLC1541IDWR VS TLC1541CDWG4
TN6726A VS ZTX618
TL062CPSRE4 VS TL062CPSLE
TL062CPSR VS TL062CPSLE
TL062CPSR VS TL062CPSRE4
TL062CPSRG4 VS TL062CPSRE4
TL062CPSRG4 VS TL062CPSLE
TL062CPS VS TL062CPSRE4
TL062CPS VS TL062CPSLE
TL062CPSRG4 VS TL062CPS
TL062CPSR VS TL062CPS
TS3USB221RSER VS TS3USB221ARSERG4
TS3USB221ERSER VS TS3USB221RSER
TS3USB221ARSER VS TS3USB221RSER
TN6726A VS ZTX1049A
TPS71550QDCKRQ1 VS TPS71550DCKRG4
TLC1078ID VS 5962F9553601VXA
THS3062DDARG3 VS THS3062DR
THS3062DDAR VS THS3062DDARG3
THS3062DDAR VS THS3062DR
TLV2221CDBVRG4 VS TLV2221CDBVTG4
TLV2221CDBVRG4 VS TLV2221IDBVRG4
TLV2221CDBVRG4 VS TLV2221IDBVTG4
TLV2221IDBVRG4 VS TLV2221CDBVT
TLV2221IDBVTG4 VS TLV2221CDBVT
TLV2221IDBVRG4 VS TLV2221IDBVTG4
TLV2221IDBVRG4 VS TLV2221CDBVTG4
TLV2221CDBVR VS TLV2221IDBVRG4
TLV2221CDBVTG4 VS TLV2221IDBVTG4
TSV324IYPT VS AD8544ARZ
TSV324IYPT VS MCP6L01UT-E/OT
TLE2024IDW VS NE5532AIP
TPS2046BDR VS TPS2046BDRG4
TCM809LENB713 VS TCM809LVNB713
TCM809LENB713 VS TCM810LVNB713
TCM809LENB713 VS TCM810MENB713
TCM809LENB713 VS TCM809JENB713
TCM809LENB713 VS TCM810MVNB713
TCM809LENB713 VS TCM810LENB713
TC1272AJVNBTR VS TCM809LENB713
TMS320F28032PAGS VS TMS320F28032PAGQ
TPS79401DGNRG4 VS TPS79401DGNTG4
TL3414AIDR VS TL3414AIDG4
TL3414AIDR VS TL3414AIDRG4
TL3414AIDR VS TL3414AIDE4
TSH81ID VS AD8056ARMZ
TSH81ID VS AD8042ARZ
TSH81ID VS AD818ANZ
TDA2030AV VS TDA2030AH
TDA2030AV VS TDA2006H
TDA2030AV VS TDA2030V
TDA2030AV VS TDA2006V
TDA2030AV VS TDA2030H
TDA7052AT/N2,118 VS TDA7052BT/N1,118
TDA7052BT/N1,118 VS TDA7052AT/N2,112
TPS5430MDDAREPG4 VS V62/09625-01XE
TPS73201MDBVREP VS V62/06644-01XE
TL7700CDGKT VS TL7700CDGKRG4
TL7700CPW VS TL7700CDGKRG4
TL7700CDGKRG4 VS TL7700CP
TL7700CPWRG4 VS TL7700CDGKRG4
TL7700CPSR VS TL7700CDGKRG4
TL7700CDGKRG4 VS TL7700CPE4
TL7700CPWRE4 VS TL7700CDGKRG4
TL7700CDGKRG4 VS TL7700CPWE4
TPS54418RTET VS TPS54418RTER
TPS57112QRTERQ1 VS TPS54418RTER
TLV4111IDGNR VS TLV4111CDGN
TLV4111IDGNR VS TLV4111CDGNG4
TNY264GN VS TNY264G-TL
TPS2057ADR VS TPS2057ADG4
TPS2057ADR VS TPS2057ADRG4
TPS2057ADR VS TPS2057D
TPS2057ADR VS TPS2057DRG4
TPS2057ADR VS TPS2057DG4
TPS2057AD VS TPS2057ADRG4
TPS2057ADG4 VS TPS2057ADRG4
TPS2057D VS TPS2057ADRG4
TPS2057DRG4 VS TPS2057ADRG4
TPS2057DG4 VS TPS2057ADRG4
TPS2057DR VS TPS2057ADRG4
TPS2057ADG4 VS TPS2057D
TPS2057ADG4 VS TPS2057DRG4
TPS2057ADG4 VS TPS2057DG4
TPS2057ADG4 VS TPS2057DR
TPS2057DG4 VS TPS2057D
TPS2057AD VS TPS2057DG4
TPS2057DRG4 VS TPS2057DG4
TPS2057DR VS TPS2057DG4
TPS2057DRG4 VS TPS2057D
TPS2057DR VS TPS2057D
TPS2057DR VS TPS2057DRG4
TPS2057AD VS TPS2057DR
TPS2057AD VS TPS2057DRG4
TPS75933KTTTG3 VS TPS75933KTT
TPS75933KTTTG3 VS TPS75933KTTRG3
TPS75933KTT VS TPS75933KTTRG3
TPS75933KTTR VS TPS75933KTTRG3
TPS75933KTTT VS TPS75933KTTRG3
TC74LVX244FT(EL) VS MC74LVX244DTR2
TC74LVX244FT(EL) VS 74LVX244MTCX
TC74LVX244FT(EL) VS MC74LVX244DT
TC74LVX244FT(EL) VS 74LVX244MTC
TC500ACOE713 VS TC500COE
TDA1517P/N3,112 VS TDA1517PN
TLC071CP VS TLC071AIPE4
TLC071CP VS TLC071AIP
TLC071IP VS TLC071CP
TLC071IP VS TLC071AIPE4
TLC071CPE4 VS TLC071AIPE4
TLC071IP VS TLC071AIP
TLC071AIP VS TLC071CPE4
TLC071IP VS TLC071CPE4
TSV992IYDT VS TSV992ID
TSV992ID VS MCP633-E/SN
TRS213CDBR VS SP211EET-L
TRS213IDBR VS SP211EET-L
TRS213CDBR VS SP211ECA-L
TRS213IDBR VS SP211ECA-L
TS912AID VS TS912AIN
TLV2462AMUB VS 5962-0051206QHA
TLV2462AMUB VS TLV2462MUB
TLV2462MUB VS 5962-0051206QHA
TSV632AIST VS TSV632AILT
TMS320C6747BZKBT3 VS TMS320C6747BZKBA3
TMS320C6747BZKB3 VS TMS320C6747BZKBT3
TMS320C6747CZKB3 VS TMS320C6747BZKBT3
TMS320C6747BZKBT3 VS TMS320C6747CZKBA3
TMS320C6747BZKBT3 VS TMS320C6747CZKBT3
TLV7211IDCKR VS TLV7211IDCKRG4
TMPA910CRAXBG VS AM1808BZWT3
TLC7701IP VS TLC7701QP
TLC7701QP VS TLC7701QPE4
TLC7701QP VS TLC7701IPE4
TPS72516DCQR VS TPS72616DCQR
TPS72516DCQR VS TPS72616DCQ
TPS72516DCQR VS TPS72618DCQ
TPS72516DCQR VS TPS72618DCQR
TPS72516DCQR VS TPS72518DCQ
TPS72516DCQR VS TPS72518DCQRG4
TPS72516DCQR VS TPS72518DCQG4
TPS72516DCQR VS TPS72618DCQRG4
TPS79433DCQRG4 VS TPS79433DCQG4
TL084MFK VS TL084MFKB
TL034CD VS TL034CDRG4
TL034ID VS TL034CDRG4
TL034IDRG4 VS TL034CDRG4
TL034AIDR VS TL034CDRG4
TL034CDR VS TL034CDRG4
TL034AID VS TL034CDRG4
TL034IDR VS TL034CDRG4
TL034ACDR VS TL034CDRG4
TL034ACD VS TL034CDRG4
TL034IDG4 VS TL034CDRG4
TL034AIDR VS TL034IDRG4
TL034ID VS TL034AIDR
TL034CDR VS TL034AIDR
TL034AIDR VS TL034CD
TL034AIDR VS TL034IDR
TL034AIDR VS TL034ACDR
TL034AIDR VS TL034ACD
TL034AIDR VS TL034IDG4
TL034AID VS TL034IDRG4
TL034CDR VS TL034IDRG4
TL034CD VS TL034IDRG4
TL034ACDR VS TL034IDRG4
TL034ACD VS TL034IDRG4
TL034IDRG4 VS TL034IDG4
TL034CDR VS TL034ID
TL034CDR VS TL034AID
TL034CDR VS TL034IDR
TL034CDR VS TL034ACDR
TL034CDR VS TL034ACD
TL034CDR VS TL034IDG4
TL034AID VS TL034IDG4
TL034CD VS TL034IDG4
TL034ACDR VS TL034IDG4
TL034ACD VS TL034IDG4
TL034ID VS TL034ACDR
TL034AID VS TL034ACDR
TL034ACDR VS TL034CD
TL034IDR VS TL034ACDR
TL034ID VS TL034ACD
TL034AID VS TL034ACD
TL034CD VS TL034ACD
TL034IDR VS TL034ACD
TL034AID VS TL034IDR
TL034IDR VS TL034CD
TC14433AEPG VS TC14433EPG
TLC7135CN VS TC14433EPG
TC14433EPG VS ICL7135CPIZ
TLV1117-18IDRJR VS TLV1117-18IDRJRG4
TLE2082AIDRG4 VS TLE2082AIDG4
TMPA910CRAXBG VS AM1808BZCE4
TPS79915QDDCRQ1 VS LK112M15TR
TPS79915QDDCRQ1 VS NCV8560SN150T1G
TPS79915QDDCRQ1 VS ADP130AUJZ-1.5-R7
TC1017R-2.5VLTTR VS STLQ50C25R
TPS79915QDDCRQ1 VS ADP170AUJZ-1.5-R7
TPS76718QDR VS TPS76718QDG4
TPS76718QDG4 VS TPS76718QDRG4
TPS76718QDR VS TPS76718QDRG4
TPS76718QD VS TPS76718QDRG4
TPS650250RHBT VS TPS650250QRHBRQ1
TPS2054BD VS ST2054BD
TPS2054BD VS ST2054BDR
TPS2054BDG4 VS ST2054BDR
TPS2054BDR VS ST2054BDR
TPS2054BDG4 VS TPS2054BDRG4
TPS2054BDRG4 VS ST2054BD
TPS2054BDG4 VS ST2054BD
TPS2054BDR VS ST2054BD
TPA3007D1PWRG4 VS TPA3007D1PWG4
TPS51221RTVR VS TPS51221RTVRG4
TD9944TG-G VS TD9944TG
TLV70734DQNR VS BU34TD2WNVX-TL
TLV70734DQNR VS TLV70734PDQNT
TLV70734DQNR VS TLV70734PDQNR
TPS2065D VS TPS2065DGNR-1
TPS2065D VS TPS2065DGN-1
TPS2065D VS TPS2065DBVR
TPS2065DBVT VS TPS2065D
TPS2065D VS TPS2065QDGNRQ1
TPS2065D VS TPS2065DGN
TPS2065D VS TPS2065DGNR
TPS2065D VS TPS2065DGNR-1G4
TPS2065DBVR VS TPS2065DGN-1
TPS2065DBVT VS TPS2065DGN-1
TPS2065DGN-1 VS TPS2065QDGNRQ1
TPS2065DBVR VS TPS2065DGNR-1
TPS2065DBVT VS TPS2065DGNR-1
TPS2065DGNR-1 VS TPS2065QDGNRQ1
TPS2065DGNR-1 VS TPS2065DGNRG4
TPS2065DBVR VS TPS2065QDGNRQ1
TPS2065DBVT VS TPS2065QDGNRQ1
TPS2065DGN VS TPS2065QDGNRQ1
TPS2065DGNR VS TPS2065QDGNRQ1
TPS2065QDGNRQ1 VS TPS2065DGNR-1G4
TPS2065DBVR VS TPS2065DGNR
TPS2065DBVT VS TPS2065DGNR
TPS2065DGNR VS TPS2065DGNR-1G4
TPS2065DBVT VS TPS2065DGN
TPS2065DBVT VS TPS2065DGNR-1G4
TPS2065DGN-1 VS TPS2065DGNR-1G4
TPS2065DGNR-1 VS TPS2065DGNR-1G4
TPS2065DBVR VS TPS2065DGNR-1G4
TPS2065DGN VS TPS2065DGNR-1G4
TPS2065DGNRG4 VS TPS2065DGNR-1G4
TPS70451PWPR VS TPS70451PWPG4
TPS2065DBVR VS TPS2065DGN
TPS54880PWPR VS TPS54880PWPG4
TPS54880PWPG4 VS TPS54880PWPRG4
TPS54880PWPR VS TPS54880PWPRG4
TPSMC13A VS SMCJ11A
TPS715A33DRBR VS TPS715A33DRBTG4
TPS715A33DRBR VS TPS715A33DRBRG4
TLV341IDRLR VS TLV341IDRLRG4
TPS7A4533KTTR VS LT1963AEQ-3.3#PBF
TC7662ACPA VS LT1054IN8
TC7662AEPA VS LT1054IN8
TC1044SEOA VS LT1054IN8
TC7660EOA VS LT1054IN8
TC7660CPA VS LT1054IN8
TC7662BEOA VS LT1054IN8
TC7660COA VS LT1054IN8
TLC2252QDG4 VS TLC2252QDRG4
TLC2252AIDRG4 VS TLC2252QDRG4
TLC2252AIDG4 VS TLC2252QDRG4
TLC2252AQDR VS TLC2252QDRG4
TLC2252AQD VS TLC2252QDRG4
TLC2252AIDRG4 VS TLC2252QDG4
TLC2252AIDG4 VS TLC2252QDG4
TLC2252AQDR VS TLC2252QDG4
TLC2252AQD VS TLC2252QDG4
TLC2252AIDRG4 VS TLC2252AIDG4
TLC2252AIDRG4 VS TLC2252AQDR
TLC2252AIDRG4 VS TLC2252AQD
TLC2252AQDR VS TLC2252AIDG4
TLC2252AQDR VS TLC2252AQD
TLC2252AIDG4 VS TLC2252AQD
TOP233GN VS TOP233G
TPS54541DPRR VS TPS54540QDDAQ1
TPS54541DPRR VS TPS54540DDA
TPS54541DPRR VS TPS54540QDDARQ1
TPS54541DPRR VS TPS54560QDDARQ1
TPS54541DPRR VS TPS54561DPRT
TPS54541DPRR VS TPS54561DPRR
TPS54540DDA VS TPS54540QDDAQ1
TPS54540QDDAQ1 VS TPS54541DPRT
TPS54540QDDAQ1 VS TPS54560QDDARQ1
TPS54540QDDAQ1 VS TPS54561DPRT
TPS54540QDDAQ1 VS TPS54561DPRR
TPS54540QDDARQ1 VS TPS54540DDA
TPS54540QDDARQ1 VS TPS54541DPRT
TPS54540QDDARQ1 VS TPS54560QDDARQ1
TPS54540QDDARQ1 VS TPS54561DPRT
关注
关注采芯网
回复型号,查元件信息
采芯网 FindIC 用户意见反馈
尊敬的用户您好!采芯网一直致力于持续提升网站的服务质量,我们希望您能提供使用网站时遇到问题和建议!
问题类型
网站页面问题或建议
数据问题或错误
元器件采购询价
其他
意见建议
联系方式
反馈和联系