页 29 - Signal Transformer 产品 | 深圳黑森尔电子
联系我们
SalesDept@heisener.com +86-0755-87210559 ext.802

Signal Transformer 产品

记录 3,669
页  29/123
图片
零件编号
制造商
描述
封装
库存
数量
80-6
Signal Transformer

XFRMR LAMINATED 480VA CHAS MOUNT

  • Type: Laminated Core
  • Voltage - Primary: 105V, 115V, 125V, 230V
  • Voltage - Secondary (Full Load): Parallel 40V, Series 80V
  • Current - Output (Max): Parallel 12A, Series 6A
  • Primary Winding(s): Single, Multiple Taps
  • Secondary Winding(s): Dual
  • Center Tap: Yes
  • Power - Max: 480 VA
  • Mounting Type: Chassis Mount
  • Termination Style: Solder, Quick Connect
  • Size / Dimension: 133.40mm L x 139.70mm W
  • Height - Seated (Max): 111.10mm
  • Voltage - Isolation: 1500Vrms
  • Weight: 19 lbs (8.6kg)
封装: -
库存7,110
DP-241-8-12
Signal Transformer

XFRMR LAMINATED 100VA CHAS MOUNT

  • Type: Laminated Core
  • Voltage - Primary: 115V, 230V
  • Voltage - Secondary (Full Load): 12.6V
  • Current - Output (Max): 8A
  • Primary Winding(s): Dual
  • Secondary Winding(s): Single
  • Center Tap: Yes
  • Power - Max: 100 VA
  • Mounting Type: Chassis Mount
  • Termination Style: Solder, Quick Connect
  • Size / Dimension: 102.40mm L x 58.50mm W
  • Height - Seated (Max): 67.70mm
  • Voltage - Isolation: 2500Vrms
  • Weight: 2.8 lbs (1.3kg)
封装: -
库存5,544
241-8-56
Signal Transformer

XFRMR LAMINATED 100VA CHAS MOUNT

  • Type: Laminated Core
  • Voltage - Primary: 115V
  • Voltage - Secondary (Full Load): 56V
  • Current - Output (Max): 1.8A
  • Primary Winding(s): Single
  • Secondary Winding(s): Single
  • Center Tap: Yes
  • Power - Max: 100 VA
  • Mounting Type: Chassis Mount
  • Termination Style: Solder, Quick Connect
  • Size / Dimension: 102.40mm L x 58.50mm W
  • Height - Seated (Max): 67.70mm
  • Voltage - Isolation: 2500Vrms
  • Weight: 2.8 lbs (1.3kg)
封装: -
库存5,796
IF-24-40
Signal Transformer

XFRMR SEMI-TORO 24VA THRU HOLE

  • Type: Semi-Toroidal
  • Voltage - Primary: 115V, 230V
  • Voltage - Secondary (Full Load): Parallel 20V, Series 40V
  • Current - Output (Max): Parallel 1.2A, Series 600mA
  • Primary Winding(s): Dual
  • Secondary Winding(s): Dual
  • Center Tap: No
  • Power - Max: 24 VA
  • Mounting Type: Through Hole
  • Termination Style: PC Pin
  • Size / Dimension: 68.00mm L x 57.50mm W
  • Height - Seated (Max): 31.30mm
  • Voltage - Isolation: 4000Vrms
  • Weight: 17 lbs (7.7kg)
封装: -
库存7,128
IF-24-230
Signal Transformer

XFRMR SEMI-TORO 24VA THRU HOLE

  • Type: Semi-Toroidal
  • Voltage - Primary: 115V, 230V
  • Voltage - Secondary (Full Load): Parallel 115V, Series 230V
  • Current - Output (Max): Parallel 210mA, Series 105mA
  • Primary Winding(s): Dual
  • Secondary Winding(s): Dual
  • Center Tap: No
  • Power - Max: 24 VA
  • Mounting Type: Through Hole
  • Termination Style: PC Pin
  • Size / Dimension: 68.00mm L x 57.50mm W
  • Height - Seated (Max): 31.30mm
  • Voltage - Isolation: 4000Vrms
  • Weight: 17 lbs (7.7kg)
封装: -
库存6,354
A41-43-12L
Signal Transformer

XFRMR LAMINATED 43VA CHAS MOUNT

  • Type: Laminated Core
  • Voltage - Primary: 115V, 230V
  • Voltage - Secondary (Full Load): Parallel 6.3V, Series 12.6V
  • Current - Output (Max): Parallel 6.8A, Series 3.4A
  • Primary Winding(s): Dual
  • Secondary Winding(s): Dual
  • Center Tap: No
  • Power - Max: 43 VA
  • Mounting Type: Chassis Mount
  • Termination Style: Wire Leads
  • Size / Dimension: 79.40mm L x 54.40mm W
  • Height - Seated (Max): 68.20mm
  • Voltage - Isolation: 4000Vrms
  • Weight: 1.6 lbs (725.7g)
封装: -
库存3,906
MPC-Y-15
Signal Transformer

XFRMR LAMINATED 24VA THRU HOLE

  • Type: Laminated Core
  • Voltage - Primary: 115V
  • Voltage - Secondary (Full Load): Parallel 5V, Series 15V
  • Current - Output (Max): Parallel 360mA, Series 130mA
  • Primary Winding(s): Single
  • Secondary Winding(s): Dual
  • Center Tap: Yes
  • Power - Max: 24 VA
  • Mounting Type: Through Hole
  • Termination Style: PC Pin
  • Size / Dimension: 41.30mm L x 57.20mm W
  • Height - Seated (Max): 34.90mm
  • Voltage - Isolation: 1500Vrms
  • Weight: 0.75 lb (340.19g)
封装: -
库存2,898
DST-2-48
Signal Transformer

XFRMR LAMINATED 1.1VA THRU HOLE

  • Type: Laminated Core
  • Voltage - Primary: 115V, 230V
  • Voltage - Secondary (Full Load): Parallel 24V, Series 48V
  • Current - Output (Max): Parallel 46mA, Series 23mA
  • Primary Winding(s): Dual
  • Secondary Winding(s): Dual
  • Center Tap: No
  • Power - Max: 1.1 VA
  • Mounting Type: Through Hole
  • Termination Style: PC Pin
  • Size / Dimension: 34.90mm L x 28.60mm W
  • Height - Seated (Max): 24.60mm
  • Voltage - Isolation: 2500Vrms
  • Weight: 0.17 lb (77.11g)
封装: -
库存6,246
241-4-20
Signal Transformer

XFRMR LAMINATED 6VA CHAS MOUNT

  • Type: Laminated Core
  • Voltage - Primary: 115V
  • Voltage - Secondary (Full Load): 20V
  • Current - Output (Max): 300mA
  • Primary Winding(s): Single
  • Secondary Winding(s): Single
  • Center Tap: Yes
  • Power - Max: 6 VA
  • Mounting Type: Chassis Mount
  • Termination Style: Solder, Quick Connect
  • Size / Dimension: 60.30mm L x 33.30mm W
  • Height - Seated (Max): 36.20mm
  • Voltage - Isolation: 2500Vrms
  • Weight: 0.44 lb (199.58g)
封装: -
库存3,526
ST-5-16
Signal Transformer

XFRMR LAMINATED 12VA THRU HOLE

  • Type: Laminated Core
  • Voltage - Primary: 115V
  • Voltage - Secondary (Full Load): Parallel 8V, Series 16V
  • Current - Output (Max): Parallel 1.6A, Series 800mA
  • Primary Winding(s): Single
  • Secondary Winding(s): Dual
  • Center Tap: No
  • Power - Max: 12 VA
  • Mounting Type: Through Hole
  • Termination Style: PC Pin
  • Size / Dimension: 47.80mm L x 39.60mm W
  • Height - Seated (Max): 36.90mm
  • Voltage - Isolation: 2500Vrms
  • Weight: 0.7 lb (317.51g)
封装: -
库存9,996
SCRH62B-390
Signal Transformer

FIXED IND 39UH 790MA 490 MOHM

  • Type: -
  • Material - Core: -
  • Inductance: 39µH
  • Tolerance: ±20%
  • Current Rating: 790mA
  • Current - Saturation: 540mA
  • Shielding: Shielded
  • DC Resistance (DCR): 490 mOhm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 100kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.256" L x 0.252" W (6.50mm x 6.40mm)
  • Height - Seated (Max): 0.126" (3.20mm)
封装: Nonstandard
库存3,906
SCB63C-680
Signal Transformer

FIXED IND 68UH 800MA 473 MOHM

  • Type: -
  • Material - Core: -
  • Inductance: 68µH
  • Tolerance: ±20%
  • Current Rating: 800mA
  • Current - Saturation: 270mA
  • Shielding: Shielded
  • DC Resistance (DCR): 473 mOhm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 1kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.244" L x 0.244" W (6.20mm x 6.20mm)
  • Height - Seated (Max): 0.118" (3.00mm)
封装: Nonstandard
库存5,868
SC3DM-472
Signal Transformer

FIXED IND 4.7MH 120MA 18.1 OHM

  • Type: -
  • Material - Core: -
  • Inductance: 4.7mH
  • Tolerance: ±30%
  • Current Rating: 120mA
  • Current - Saturation: 4mA
  • Shielding: Shielded
  • DC Resistance (DCR): 18.1 Ohm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 100kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.256" L x 0.173" W (6.50mm x 4.40mm)
  • Height - Seated (Max): 0.122" (3.10mm)
封装: Nonstandard
库存4,212
SCR105B-390
Signal Transformer

FIXED IND 39UH 2.14A 120 MOHM

  • Type: -
  • Material - Core: -
  • Inductance: 39µH
  • Tolerance: ±20%
  • Current Rating: 2.14A
  • Current - Saturation: 1.1A
  • Shielding: Shielded
  • DC Resistance (DCR): 120 mOhm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 2.52kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.413" L x 0.374" W (10.50mm x 9.50mm)
  • Height - Seated (Max): 0.217" (5.50mm)
封装: Nonstandard
库存7,506
SCRH125B-181
Signal Transformer

FIXED IND 180UH 1.44A 340 MOHM

  • Type: -
  • Material - Core: -
  • Inductance: 180µH
  • Tolerance: ±20%
  • Current Rating: 1.44A
  • Current - Saturation: 900mA
  • Shielding: Shielded
  • DC Resistance (DCR): 340 mOhm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 1kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.492" L x 0.492" W (12.50mm x 12.50mm)
  • Height - Seated (Max): 0.244" (6.20mm)
封装: Nonstandard
库存3,978
SCRH105RY-3R3
Signal Transformer

FIXED IND 3.3UH 8.2A 11 MOHM SMD

  • Type: -
  • Material - Core: -
  • Inductance: 3.3µH
  • Tolerance: ±30%
  • Current Rating: 8.2A
  • Current - Saturation: 8.8A
  • Shielding: Shielded
  • DC Resistance (DCR): 11 mOhm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 100kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.413" L x 0.406" W (10.50mm x 10.30mm)
  • Height - Seated (Max): 0.201" (5.10mm)
封装: Nonstandard
库存2,502
SCRH127-681
Signal Transformer

FIXED IND 680UH 750MA 1.46 OHM

  • Type: -
  • Material - Core: -
  • Inductance: 680µH
  • Tolerance: ±20%
  • Current Rating: 750mA
  • Current - Saturation: 670mA
  • Shielding: Shielded
  • DC Resistance (DCR): 1.46 Ohm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 1kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.492" L x 0.492" W (12.50mm x 12.50mm)
  • Height - Seated (Max): 0.315" (8.00mm)
封装: Nonstandard
库存2,100
SCRH64B-821
Signal Transformer

FIXED IND 820UH 150MA 8.24 OHM

  • Type: -
  • Material - Core: -
  • Inductance: 820µH
  • Tolerance: ±20%
  • Current Rating: 150mA
  • Current - Saturation: 150mA
  • Shielding: Shielded
  • DC Resistance (DCR): 8.24 Ohm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 1kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.256" L x 0.252" W (6.50mm x 6.40mm)
  • Height - Seated (Max): 0.205" (5.20mm)
封装: Nonstandard
库存7,128
SCRH124-270
Signal Transformer

FIXED IND 27UH 2.7A 80 MOHM SMD

  • Type: -
  • Material - Core: -
  • Inductance: 27µH
  • Tolerance: ±20%
  • Current Rating: 2.7A
  • Current - Saturation: 2.8A
  • Shielding: Shielded
  • DC Resistance (DCR): 80 mOhm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 100kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.492" L x 0.492" W (12.50mm x 12.50mm)
  • Height - Seated (Max): 0.177" (4.50mm)
封装: Nonstandard
库存2,574
SCRH123-100
Signal Transformer

FIXED IND 10UH 3.5A 67 MOHM SMD

  • Type: -
  • Material - Core: -
  • Inductance: 10µH
  • Tolerance: ±20%
  • Current Rating: 3.5A
  • Current - Saturation: 5A
  • Shielding: Shielded
  • DC Resistance (DCR): 67 mOhm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 100kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.492" L x 0.492" W (12.50mm x 12.50mm)
  • Height - Seated (Max): 0.150" (3.80mm)
封装: Nonstandard
库存3,132
SCMS5D25-3R3
Signal Transformer

FIXED IND 3.3UH 2.46A 42 MOHM

  • Type: -
  • Material - Core: -
  • Inductance: 3.3µH
  • Tolerance: ±30%
  • Current Rating: 2.46A
  • Current - Saturation: 1.8A
  • Shielding: Shielded
  • DC Resistance (DCR): 42 mOhm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 100kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.205" L x 0.205" W (5.20mm x 5.20mm)
  • Height - Seated (Max): 0.110" (2.80mm)
封装: Nonstandard
库存3,454
SCRH62-6R3
Signal Transformer

FIXED IND 6.3UH 1.62A 100 MOHM

  • Type: -
  • Material - Core: -
  • Inductance: 6.3µH
  • Tolerance: -20%, +40%
  • Current Rating: 1.62A
  • Current - Saturation: 1.3A
  • Shielding: Shielded
  • DC Resistance (DCR): 100 mOhm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 100kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.280" L x 0.256" W (7.10mm x 6.50mm)
  • Height - Seated (Max): 0.118" (3.00mm)
封装: Nonstandard
库存7,578
SCRH1035R-391
Signal Transformer

FIXED IND 390UH 450MA 1.79 OHM

  • Type: -
  • Material - Core: -
  • Inductance: 390µH
  • Tolerance: ±30%
  • Current Rating: 450mA
  • Current - Saturation: 580mA
  • Shielding: Shielded
  • DC Resistance (DCR): 1.79 Ohm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 100kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.413" L x 0.406" W (10.50mm x 10.30mm)
  • Height - Seated (Max): 0.122" (3.10mm)
封装: Nonstandard
库存3,222
SCRH1035R-100
Signal Transformer

FIXED IND 10UH 3A 69 MOHM SMD

  • Type: -
  • Material - Core: -
  • Inductance: 10µH
  • Tolerance: ±30%
  • Current Rating: 3A
  • Current - Saturation: 3.4A
  • Shielding: Shielded
  • DC Resistance (DCR): 69 mOhm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 100kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.413" L x 0.406" W (10.50mm x 10.30mm)
  • Height - Seated (Max): 0.122" (3.10mm)
封装: Nonstandard
库存5,256
SC10F-681
Signal Transformer

FIXED IND 680UH 540MA 1.9 OHM

  • Type: Wirewound
  • Material - Core: -
  • Inductance: 680µH
  • Tolerance: ±10%
  • Current Rating: 540mA
  • Current - Saturation: 380mA
  • Shielding: Unshielded
  • DC Resistance (DCR): 1.9 Ohm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 100kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.453" L x 0.382" W (11.50mm x 9.70mm)
  • Height - Seated (Max): 0.197" (5.00mm)
封装: Nonstandard
库存3,204
SCB75C-471
Signal Transformer

FIXED IND 470UH 420MA 1.9 OHM

  • Type: -
  • Material - Core: -
  • Inductance: 470µH
  • Tolerance: ±20%
  • Current Rating: 420mA
  • Current - Saturation: 250mA
  • Shielding: Shielded
  • DC Resistance (DCR): 1.9 Ohm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 1kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.291" L x 0.291" W (7.40mm x 7.40mm)
  • Height - Seated (Max): 0.217" (5.50mm)
封装: Nonstandard
库存3,276
SCMS5D12-680
Signal Transformer

FIXED IND 68UH 410MA 2.37 OHM

  • Type: -
  • Material - Core: -
  • Inductance: 68µH
  • Tolerance: ±20%
  • Current Rating: 410mA
  • Current - Saturation: 290mA
  • Shielding: Shielded
  • DC Resistance (DCR): 2.37 Ohm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 100kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.205" L x 0.205" W (5.20mm x 5.20mm)
  • Height - Seated (Max): 0.049" (1.25mm)
封装: Nonstandard
库存2,304
SC1606-150
Signal Transformer

FIXED IND 15UH 880MA 400 MOHM

  • Type: -
  • Material - Core: -
  • Inductance: 15µH
  • Tolerance: ±20%
  • Current Rating: 880mA
  • Current - Saturation: 800mA
  • Shielding: Unshielded
  • DC Resistance (DCR): 400 mOhm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 100kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.256" L x 0.220" W (6.50mm x 5.60mm)
  • Height - Seated (Max): 0.071" (1.80mm)
封装: Nonstandard
库存5,040
SC54-680
Signal Transformer

FIXED IND 68UH 780MA 460 MOHM

  • Type: Wirewound
  • Material - Core: -
  • Inductance: 68µH
  • Tolerance: ±20%
  • Current Rating: 780mA
  • Current - Saturation: 610mA
  • Shielding: Unshielded
  • DC Resistance (DCR): 460 mOhm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 2.52MHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.240" L x 0.217" W (6.10mm x 5.50mm)
  • Height - Seated (Max): 0.189" (4.80mm)
封装: Nonstandard
库存7,416
SC53-681
Signal Transformer

FIXED IND 680UH 200MA 6.7 OHM

  • Type: Wirewound
  • Material - Core: -
  • Inductance: 680µH
  • Tolerance: ±20%
  • Current Rating: 200mA
  • Current - Saturation: 180mA
  • Shielding: Unshielded
  • DC Resistance (DCR): 6.7 Ohm Max
  • Q @ Freq: -
  • Frequency - Self Resonant: -
  • Ratings: -
  • Operating Temperature: -40°C ~ 125°C
  • Frequency - Test: 1kHz
  • Features: -
  • Mounting Type: Surface Mount
  • Package / Case: Nonstandard
  • Supplier Device Package: -
  • Size / Dimension: 0.240" L x 0.217" W (6.10mm x 5.50mm)
  • Height - Seated (Max): 0.130" (3.30mm)
封装: Nonstandard
库存6,210