Where to buy X28HC256SM-15
X28HC256SM-15 256k, 32k x 8-Bit, 5V, Byte Alterable EEPROM |
Series X28HC256: X28HC256D-12 X28HC256D-90 X28HC256DI-12 X28HC256DI-15 More
X28HC256DI-90 X28HC256DM-12 X28HC256DM-15 X28HC256DM-90 X28HC256DMB-12 X28HC256DMB-15 X28HC256DMB-70 X28HC256DMB-90 X28HC256EI X28HC256EI-12 X28HC256EM-12 X28HC256EM-90 X28HC256EMB-12 X28HC256EMB-15 X28HC256EMB-90 X28HC256FI-90 X28HC256FM-90 X28HC256FMB-12 X28HC256FMB-15 X28HC256FMB-90 X28HC256J-12 X28HC256J-12T1 X28HC256J-15 X28HC256J-15T1 X28HC256J-15T2 X28HC256J-90 X28HC256J-90T1 X28HC256JI-12 X28HC256JI-12T1 X28HC256JI-15 X28HC256JI-15T1 X28HC256JI-15T2 X28HC256JI-20 X28HC256JI-90 X28HC256JI-90T1 X28HC256JIZ-12 X28HC256JIZ-12T1 X28HC256JIZ-15 X28HC256JIZ-15T1 X28HC256JIZ-90 X28HC256JIZ-90T1 X28HC256JM-15 X28HC256JM-15T1 X28HC256JM-90 X28HC256JM-90T1 X28HC256JM-90T2 X28HC256JZ-12 X28HC256JZ-12T1 X28HC256JZ-15 X28HC256JZ-15T1 X28HC256JZ-90 X28HC256JZ-90T1 X28HC256KI-12 X28HC256KI-15 X28HC256KM-12 X28HC256KM-15 X28HC256KM-90 X28HC256KMB-12 X28HC256KMB-15 X28HC256KMB-90 X28HC256P-12 X28HC256P-15 X28HC256P-90 X28HC256PI X28HC256PI-12 X28HC256PI-15 X28HC256PI-90 X28HC256PIZ-12 X28HC256PIZ-15 X28HC256PIZ-90 X28HC256PM-15 X28HC256PZ-12 X28HC256PZ-15 X28HC256PZ-90 X28HC256S-12 X28HC256S-12T1 X28HC256S-90 X28HC256S-90T1 X28HC256SI X28HC256SI-12 X28HC256SI-12T1 X28HC256SI-15 X28HC256SI-15T1 X28HC256SI-20T1 X28HC256SI-90 X28HC256SI-90T1 X28HC256SIZ-12 X28HC256SIZ-15 X28HC256SIZ-90 X28HC256SM-12 X28HC256SM-12T1 X28HC256SM-12T2 X28HC256SZ-12
2000 offers from 5 suppliers
| N Provider Headquarters Delivery Location | |
|---|---|
Photo Product Manufacturer Urgency of price list Description | Price Pricing conditions Delivery time Stock |
| 1 ChipWorker China All over the world | |
, DO-15 15.3V 400W | 0.15 $ 2-5 days stock 4000 pcs |
| 2 Lixinc Electronics China All over the world | |
TVS DIODE 15.3V 25.2V DO15 | 0.18 $ от 1000 шт 7 дней 6026 шт |
| 3 ChipWorker China All over the world | |
Телевизионные диоды, STMICROELECTRONICS BZW06-15 TVS Diode, BZW06 ... Next BZW06-15Телевизионные диоды, STMICROELECTRONICS BZW06-15 TVS Diode, BZW06 Series, Unidirectional, 15.3V, 32.5V, DO-15, 2Pins | 0.18 $ 2-5 days stock 168 pcs |
| 4 Lixinc Electronics China All over the world | |
TVS DIODE 15.3V 25.2V DO15 | 0.52 $ от 1 шт 7 дней 6026 шт |
| 5 ChipWorker China All over the world | |
D-Субминиатюрные Контакты, Conn IP67 D-Sub SKT 15POS Solder Cup ST ... Next A-HDF 15 LL/ZD-Субминиатюрные Контакты, Conn IP67 D-Sub SKT 15POS Solder Cup ST Panel Mount 15 Terminal 1Port Tray | 0.69 $ 2-5 days stock 1572 pcs |
D-Субминиатюрные Контакты, Conn D-Subminiature M 15POS Solder Cup ST ... Next A-DS 15 LL/ZD-Субминиатюрные Контакты, Conn D-Subminiature M 15POS Solder Cup ST Panel Mount 15 Terminal 1Port | 0.76 $ 2-5 days stock 2420 pcs |
D-Субминиатюрные Контакты, Conn D-Subminiature F 15POS Solder Cup ST ... Next A-DF 15 LL/ZD-Субминиатюрные Контакты, Conn D-Subminiature F 15POS Solder Cup ST Panel Mount 15 Terminal 1Port | 0.76 $ 2-5 days stock 169 pcs |
| 8 EIS Components China All over the world | |
new in stock for immediate delivery | 0.80 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
new in stock for immediate delivery | 0.80 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
new in stock for immediate delivery | 0.80 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
new in stock for immediate delivery | 0.80 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
new in stock for immediate delivery | 0.80 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
new in stock for immediate delivery | 0.80 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
new in stock for immediate delivery | 0.80 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
new in stock for immediate delivery | 0.80 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
| 16 ChipWorker China All over the world | |
D-Субминиатюрные Контакты, Conn High Density D-Sub M 15POS ST 15 ... Next A-HDS 15 LL/ZD-Субминиатюрные Контакты, Conn High Density D-Sub M 15POS ST 15 Terminal 1Port | 0.81 $ 2-5 days stock 7261 pcs |
| 17 Lixinc Electronics China All over the world | |
IC 4.125V 15% TO92-3 | 0.89 $ от 100 шт 7 дней 15216 шт |
| 18 AllElco Electronics China All over the world | |
IC DRAM 1GBIT SSTL 15 78VFBGA | 0.96 $ от 242 5-7 days stock 43654 pcs |
| 19 EIS Components China All over the world | |
new in stock for immediate delivery | 1.00 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
| 20 Lixinc Electronics China All over the world | |
IC 4.125V 15% TO92-3 | 1.02 $ от 25 шт 7 дней 15216 шт |
| 21 EIS Components China All over the world | |
new in stock for immediate delivery | 1.04 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
| 22 Lixinc Electronics China All over the world | |
IC 4.125V 15% TO92-3 | 1.12 $ от 10 шт 7 дней 15216 шт |
| 23 EIS Components China All over the world | |
new in stock for immediate delivery | 1.24 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
new in stock for immediate delivery | 1.39 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
| 25 Lixinc Electronics China All over the world | |
IC 4.125V 15% TO92-3 | 1.41 $ от 1 шт 7 дней 15216 шт |
IC 2.72V 15% SOT223 | 1.47 $ от 1 шт 7 дней 13279 шт |
IC 4.125V 15% SOT223-3 | 1.61 $ от 150 шт 7 дней 12831 шт |
| 28 ChipWorker China All over the world | |
Телевизионные диоды, STMICROELECTRONICS BZW50-15 TVS Diode, BZW50 ... Next BZW50-15Телевизионные диоды, STMICROELECTRONICS BZW50-15 TVS Diode, BZW50 Series, Unidirectional, 15V, 35V, R6, 2Pins | 1.66 $ 2-5 days stock 714 pcs |
| 29 Lixinc Electronics China All over the world | |
IC 4.125V 15% SOT223-3 | 1.73 $ от 75 шт 7 дней 12831 шт |
2.03 $ от 10 шт 7 дней 12831 шт | |
| 31 EIS Components China All over the world | |
new in stock for immediate delivery | 2.40 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
| 32 AiPCBA China All over the world | |
2.44 $ 2-7 days stock 86 pcs | |
| 33 Lixinc Electronics China All over the world | |
IC 4.125V 15% SOT223-3 | 2.56 $ от 1 шт 7 дней 12831 шт |
| 34 EIS Components China All over the world | |
new in stock for immediate delivery | 2.81 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
new in stock for immediate delivery | 3.17 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
new in stock for immediate delivery | 3.59 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
new in stock for immediate delivery | 3.59 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
new in stock for immediate delivery | 3.93 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
| 39 AiPCBA China All over the world | |
4.27 $ 2-7 days stock 299 pcs | |
| 40 EIS Components China All over the world | |
new in stock for immediate delivery | 4.75 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5275 pcs |
new in stock for immediate delivery | 5.22 $ От 1 шт. Оплата рубли, юани,... Next От 1 шт. Оплата рубли, юани, USD. 5-7 days stock 5010 pcs |
| 42 AiPCBA China All over the world | |
5.80 $ 2-7 days stock 86 pcs | |
| 43 AllElco Electronics China All over the world | |
STP-15 TEST PIECE 60MM | 6.60 $ от 1 5-7 days stock 37329 pcs |
| 44 ChipWorker China All over the world | |
, 15 Pin Male 180° High Density Water Proof D-Sub Connectors | 7.86 $ 2-5 days stock 170 pcs |
| 45 AllElco Electronics China All over the world | |
ULTRA COMPACT 15 WATT CONVERTER | 9.87 $ от 10 5-7 days stock 34232 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 9.87 $ от 10 5-7 days stock 37208 pcs |
9.95 $ от 5 5-7 days stock 37208 pcs | |
ULTRA COMPACT 15 WATT CONVERTER | 9.95 $ от 5 5-7 days stock 34232 pcs |
10.0 $ от 1 5-7 days stock 34232 pcs | |
ULTRA COMPACT 15 WATT CONVERTER | 10.0 $ от 1 5-7 days stock 37208 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 10.3 $ от 10 5-7 days stock 43310 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 10.4 $ от 10 5-7 days stock 42985 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 10.4 $ от 5 5-7 days stock 43310 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 10.4 $ от 5 5-7 days stock 42985 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 10.5 $ от 1 5-7 days stock 43310 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 10.5 $ от 1 5-7 days stock 42985 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 10.7 $ от 10 5-7 days stock 28855 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 10.7 $ от 10 5-7 days stock 31883 pcs |
10.8 $ от 5 5-7 days stock 31883 pcs | |
ULTRA COMPACT 15 WATT CONVERTER | 10.8 $ от 5 5-7 days stock 28855 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 10.8 $ от 10 5-7 days stock 41605 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 10.8 $ от 10 5-7 days stock 28894 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 10.9 $ от 1 5-7 days stock 28855 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 10.9 $ от 1 5-7 days stock 31883 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 10.9 $ от 5 5-7 days stock 41605 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 10.9 $ от 5 5-7 days stock 28894 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 11.0 $ от 1 5-7 days stock 41605 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 11.0 $ от 1 5-7 days stock 28894 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 11.2 $ от 10 5-7 days stock 42763 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 11.2 $ от 10 5-7 days stock 43592 pcs |
11.3 $ от 5 5-7 days stock 43592 pcs | |
ULTRA COMPACT 15 WATT CONVERTER | 11.3 $ от 5 5-7 days stock 42763 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 11.4 $ от 1 5-7 days stock 43592 pcs |
ULTRA COMPACT 15 WATT CONVERTER | 11.4 $ от 1 5-7 days stock 42763 pcs |
DIN Rail Mounting Adapter for 15 | 12.2 $ от 1 5-7 days stock 28796 pcs |
| 76 ChipWorker China All over the world | |
, ITW MCMURDO MP643-15 D Sub Contact, D Sub Connectors, Socket, Copper ... Next MP643-15, ITW MCMURDO MP643-15 D Sub Contact, D Sub Connectors, Socket, Copper Alloy, Gold Plated Contacts, 24AWG, 28AWG | 13.0 $ 2-5 days stock 161 pcs |
| 77 AiPCBA China All over the world | |
15.8 $ 2-7 days stock 3 pcs | |
15.9 $ 2-7 days stock 67 pcs | |
15.9 $ 2-7 days stock 240 pcs | |
| 80 ChipWorker China All over the world | |
ПреобразовательAC-AC, TDK-LAMBDA LS25-15 AC-DC Enclosed Power Supply, ... Next LS25-15ПреобразовательAC-AC, TDK-LAMBDA LS25-15 AC-DC Enclosed Power Supply, Adjustable, Fixed, 1Outputs, 88V, 264V, 25W, 15V | 18.1 $ 2-5 days stock 260 pcs |
| 81 AiPCBA China All over the world | |
18.6 $ 2-7 days stock 15 pcs | |
| 82 ChipWorker China All over the world | |
Преобразователь AC-DC, TDK LAMBDA LS50-15 AC-DC Enclosed Power Supply, ... Next LS50-15Преобразователь AC-DC, TDK LAMBDA LS50-15 AC-DC Enclosed Power Supply, Compact, Adjustable, Fixed, 1Outputs, 88V, 264V, 51W, 15V | 21.8 $ 2-5 days stock 116 pcs |
Датчики Давления, Millivolt Output Medium Pressure Sensors 0-15 psia ... Next 15 PSI-A-CGRADE-MVДатчики Давления, Millivolt Output Medium Pressure Sensors 0-15 psia 90mV 1% 16VDC supply | 29.0 $ 2-5 days stock 131 pcs |
Датчики Давления, Millivolt Output Medium Pressure Sensors 0-15 psia ... Next 15 PSI-A-HGRADE-MVДатчики Давления, Millivolt Output Medium Pressure Sensors 0-15 psia 90mV 0.5% 16VDC supply | 30.1 $ 2-5 days stock 174 pcs |
Датчики Давления, Millivolt Output Medium Pressure Sensors 0-15 psid ... Next 15 PSI-D-HGRADE-MVДатчики Давления, Millivolt Output Medium Pressure Sensors 0-15 psid 90mV 0.5% 16VDC supply | 35.9 $ 2-5 days stock 154 pcs |
| 86 AiPCBA China All over the world | |
42.0 $ 2-7 days stock 15 pcs | |
42.3 $ 2-7 days stock 3 pcs | |
49.7 $ 2-7 days stock 206 pcs | |
51.3 $ 2-7 days stock 235 pcs | |
56.9 $ 2-7 days stock 212 pcs | |
60.6 $ 2-7 days stock 3 pcs | |
| 92 ChipWorker China All over the world | |
, 15&s; GLOW ROD KIT 3/16 DIAMETER | 63.3 $ 2-5 days stock 182 pcs |
| 93 AiPCBA China All over the world | |
70.6 $ 2-7 days stock 277 pcs | |
71.8 $ 2-7 days stock 298 pcs | |
| 95 ChipWorker China All over the world | |
Датчики Давления, Millivolt Output Medium Pressure Sensors 0-15 psia ... Next 15 PSI-A-PRIME-MVДатчики Давления, Millivolt Output Medium Pressure Sensors 0-15 psia 90mV 0.25% 16VDC supply | 72.9 $ 2-5 days stock 134 pcs |
| 96 AiPCBA China All over the world | |
73.1 $ 2-7 days stock 220 pcs | |
114 $ 2-7 days stock 95 pcs | |
| 98 AllElco Electronics China All over the world | |
3LM5M.15 LOGIC MOD. MULTIBEAM | 131 $ от 1 5-7 days stock 38693 pcs |
| 99 AiPCBA China All over the world | |
136 $ 2-7 days stock 6 pcs | |
141 $ 2-7 days stock 15 pcs | |
| 101 ChipWorker China All over the world | |
Преобразователь DC/DC, TDK-LAMBDA CN100A110-15 Isolated Board Mount DC ... Next CN100A110-15Преобразователь DC/DC, TDK-LAMBDA CN100A110-15 Isolated Board Mount DC-DC Converter, Baseplate, Fixed, Adjustable, 1 Output, 60V, 160V, 100. ... | 156 $ 2-5 days stock 134 pcs |
ПреобразовательAC-AC, TDK-LAMBDA SWS300-15 AC-DC Enclosed Power Supply ... Next SWS300-15ПреобразовательAC-AC, TDK-LAMBDA SWS300-15 AC-DC Enclosed Power Supply, Active PFC, Adjustable, Fixed, 1Outputs, 85V, 265V, 300W, 15V | 157 $ 2-5 days stock 115 pcs |
| 103 AiPCBA China All over the world | |
158 $ 2-7 days stock 230 pcs | |
| 104 AllElco Electronics China All over the world | |
FLOWMETER CDI 5200-15S | 215 $ от 1 5-7 days stock 30082 pcs |
| 105 ChipWorker China All over the world | |
Деталь прибора, JONARD TOOLS GD-15 MEASURING, TENSION GAUGES | 240 $ 2-5 days stock 181 pcs |
| 106 AllElco Electronics China All over the world | |
FUSE CARTRIDGE 31.5A 15.5KVAC | 427 $ от 3 5-7 days stock 42768 pcs |
FUSE CARTRIDGE 20A 15.5KVAC | 428 $ от 3 5-7 days stock 41880 pcs |
| 108 ChipWorker China All over the world | |
ПреобразовательAC-AC, TDK LAMBDA HWS600-15 AC-DC Enclosed Power Supply ... Next HWS600-15ПреобразовательAC-AC, TDK LAMBDA HWS600-15 AC-DC Enclosed Power Supply, Industrial, Adjustable, Fixed, 1Outputs, 85V, 265V, 645W, 15V | 534 $ 2-5 days stock 111 pcs |
| 109 Lixinc Electronics China All over the world | |
FUSE 15.5KV 3.15A OIL VT / VOLTAGE AND AUXILIARY TRANSFORMER FUSE ... Next 15.5OBFN223.15FUSE 15.5KV 3.15A OIL VT / VOLTAGE AND AUXILIARY TRANSFORMER FUSE LINKS | 562 $ от 1 шт 7 дней 13979 шт |
| 110 AllElco Electronics China All over the world | |
FUSE 15.5KV 125A TW 1643 | 686 $ от 1 5-7 days stock 48992 pcs |
| 111 Lixinc Electronics China All over the world | |
FUSE CARTRIDGE 40A 15.5KVAC / 40A 15.5 kV AC DC Fuse Cartridge Surface ... Next 15.5OEFMA40FUSE CARTRIDGE 40A 15.5KVAC / 40A 15.5 kV AC DC Fuse Cartridge Surface Mount | 870 $ от 1 шт 7 дней 15279 шт |
| 112 AllElco Electronics China All over the world | |
FUSE 15.5KV 100A TW | 1 493 $ от 1 5-7 days stock 35276 pcs |
| 113 Lixinc Electronics China All over the world | |
CABLE 15COND 16AWG SLATE 500' / 15 Conductor Multi-Conductor Cable ... Next 5439/15 SL002CABLE 15COND 16AWG SLATE 500' / 15 Conductor Multi-Conductor Cable Slate 16 AWG 500.0' (152.4m) | 11 445 $ от 1 шт 7 дней 6358 шт |
REVERSIBLE BLADE, TORX10/15; Tip 2 type: T 15; Tip 1 type: T 10; ... Next 284 TORX10/15.REVERSIBLE BLADE, TORX10/15; Tip 2 type: T 15; Tip 1 type: T 10; Length, blade: 150mm; Width, external: 6mm RoHS... | запрос stock 12143 pcs |
X28C512JIZ-15 Intersil | запрос stock 3241 pcs |
Conn Miniature Cylindrical SKT 15 POS Solder ST Cable Mount 15 ... Next PT06W14-15SConn Miniature Cylindrical SKT 15 POS Solder ST Cable Mount 15 Terminal 1 Port | запрос stock 5408 pcs |
10GBE Dual Xfi to Xaui Xcvr With Edc/kr And 1588 - Replacement: Use ... Next VSC8488XJU-1510GBE Dual Xfi to Xaui Xcvr With Edc/kr And 1588 - Replacement: Use YJU-15 Partpart Being Replaced By VSC8488YJU-15... | запрос stock 13945 pcs |
Integrated Circuit Memory 28HC64/X28HC64P/15 XICOR EEPROM KX8=8 N28 | запрос stock 26591 pcs |
| 119 AllElco Electronics China All over the world | |
TVS DIODE 15.3VWM 25.2VC DO204AL | запрос 5-7 days |
| 120 Lixinc Electronics China All over the world | |
PEEL? 22CV10A-7/-10/-15/-25 CMOS Programmable Electrically Erasable ... Next PEEL22CV10API-15PEEL? 22CV10A-7/-10/-15/-25 CMOS Programmable Electrically Erasable Logic Device | запрос stock 3377 pcs |
Integrated Circuit Memory 6116/MB8416A/15 FUJITSU Static RAM memory ... Next MB8416A-15Integrated Circuit Memory 6116/MB8416A/15 FUJITSU Static RAM memory prog. volatille KX8=8 N24 | запрос stock 14004 pcs |
EPM7128QC160-15 Altera | запрос stock 15444 pcs |
EPM7160ELI84-15 Altera | запрос stock 5317 pcs |
EPM9560GC280-15 Altera | запрос stock 19949 pcs |
Integrated Circuit Memory 2164/D2164A/15 INTEL DRAM | запрос stock 3977 pcs |
Recommended Subsections
