* Open- loop
* Supply voltage: DC +3.3V
* Capable measurement of currents: DC, AC,pulse with galvanic isolation between primary circuit and secondary circuit.



* AC/DC variable-speed drive
* Uninterruptible Power Supplies (UPS)
* Switched Mode Power Supplies (SMPS)
* Frequency drive control home appliances

Electrical data:(Ta=25ºC,Vc=+3.3VDC,RL=2Kilohm) | ||||||
Parmeter Ref | CHK50BS3S1 | CHK100BS3S1 | CHK200BS3S1 | CHK300BS3S1 | CHK400BS3S1 | CHK600BS3S1 |
Rated input Ipn(A) | 50 | 100 | 200 | 300 | 400 | 600 |
Measuring range Ip(A) | 0~±50 | 0~±100 | 0~±200 | 0~±300 | 0~±400 | 0~±600 |
Output voltage Vo(V) | 1.650±1.250*(IP/IPN) | |||||
Output voltage Vo(V) | @IP=0,T=25°C 1.6500 | |||||
Load resistance RL(Kilohm) | >2.0 | |||||
Supply voltage VC(V) | +3.3 ±5% | |||||
Accuracy XG(%) | @IPN,T=25°C < ±1.0 | |||||
Offset voltage VOE(mV) | @IP=0,T=25°C < ±25 | |||||
Temperature variation of VOE VOT(mV/°C) | @IP=0,-40 ~ +85°C < ±1.0 | |||||
Hysteresis offset voltage VOH(mV) | @IP=0,after 1*IPN < ±10 | |||||
Linearity error εr(%FS) | < 1.0 | |||||
Di/dt accurately followed(A/µs) | > 100 | |||||
Response time tra(µs) | @90% of IPN < 3.0 | |||||
Power consumption IC(mA) | 15 | |||||
Bandwidth Bw(KHZ) | @-3dB, IPN DC-20 | |||||
Insulation voltage Vd(KV) | @50/60Hz, 1min,AC 2.5 |
General data: | |
Parameter | Value |
Operating temperature TA(°C) | -40 ~ +85 |
Storage temperature TS(°C ) | -55~ +125 |
Mass M(g ) | 70 |
Plastic material | PBT G30/G15, UL94- V0; |
Standards | IEC60950-1:2001 |
EN50178:1998 | |
SJ20790-2000 |
Dimensions(mm): | ||
CHK-BS3S1U | CHK-BS3S1M | Connection |
![]() | ![]() | |
General tolerance | ||
General tolerance:< ±0.5mm Primary through-hole:10.5*20.5±0.3 Connection of secondary : 2510-04A (instead of the Molex 5045-04A) |






All our sensors will be well packed with bubble & carton. (Bubble packing→4 small carton→1 big carton)
You can choose your own label(Screen Print or Laser Engraving).
Can be netural packing or OEM.
Shipping
Products are shipped via UPS / DHL/ FedEx / TNT, etc. (door to door), or air & sea shipment for larger qty.
L/T: 3-7 days upon receiving payment if the qty is lower than 1000PCS and it is not customized products.
Shipping via DHL. UPS. FedEx and TNT express usually takes 3~7days dependent on the destination country.

Q1:Can I get sample from you?
A:Yes,we can provide the free samples for your testing,please contact us for free and tell us which product you need.
Q2:Do you accept customization?
A:Yes,customization is acceptable,please contact our sales staffs for consult.
Q3:Can you provide help for technical issues?
A:Yes,we have more than 10 years of research and development in the electronic industry. If you need technical help in the purchase process, please feel free to contact us.
Q4 : Can I get a lower price if I order large quantities?
A : Yes,it's negotiable.
Q5: How about the quality guarantee period ?
A : Our warranty period is one year since from shipping date.
Q6: Can I add or delete items from my order if I change mind?
A : Yes, but you need to tell us asap, if your order has been done in our production line, we cannot change it.