A250 Series Resettable Fuses Current Overload Protection PTC
Resettable Fuses
A250.pdf
A250 Series is designed to protect against short duration high
voltage fault currents (power cross or power induction surge)
typically found in telecom applications (250Vrms). The series can
be used to help telecom networking equipment meet the protection
requirements specified in ITU K.20 and K.21.
0.03 - 1.0A hold current range, 60VDC operating
voltage
250VAC interrupt rating
Fast time-to-trip
Binned and sorted narrow resistance ranges available
RoHS compliant, Lead-Free and Halogen-Free*
Customer Premises Equipment (CPE)
Central Office (CO)/telecom centers
LAN/WAN equipment
Access equipment
Performance Specification
| Model |
I hold |
I trip | Vmax | Vmax | Imax | P d Typ. | Maximum Time To Trip | Resistance |
| Current | Time | Rimin | Rimax | R1max |
| (A) | (A) | (Vdc) | (Vrms) | (A) | (W) | (A) | (Sec) | (Ω) | (Ω) | (Ω) |
| A250-030 | 0.03 | 0.06 | 60 | 250 | 3.0 | 1.00 | 0.15 | 0.40 | 40.0 | 120 | 180.0 |
| A250-040 | 0.04 | 0.08 | 60 | 250 | 3.0 | 1.00 | 0.20 | 0.45 | 30.0 | 65 | 100 |
| A250-050 | 0.05 | 0.10 | 60 | 250 | 3.0 | 1.00 | 0.25 | 0.45 | 24.0 | 60 | 90 |
| A250-060 | 0.06 | 0.12 | 60 | 250 | 3.0 | 1.00 | 0.30 | 0.50 | 20.0 | 60 | 90 |
| A250-080 | 0.08 | 0.16 | 60 | 250 | 3.0 | 1.00 | 0.40 | 3.00 | 12.0 | 22 | 33 |
| A250-090 | 0.09 | 0.18 | 60 | 250 | 3.0 | 1.00 | 0.45 | 3.00 | 10.0 | 20 | 31 |
| A250-110 | 0.11 | 0.22 | 60 | 250 | 3.0 | 1.00 | 0.50 | 0.75 | 6.00 | 12 | 17 |
| A250-120 | 0.12 | 0.24 | 60 | 250 | 3.0 | 1.00 | 0.60 | 0.75 | 6.00 | 12 | 18 |
| A250-145 | 0.145 | 0.29 | 60 | 250 | 3.0 | 1.00 | 0.725 | 2.50 | 3.50 | 6.5 | 14 |
A250-180 | 0.18 | 0.36 | 60 | 250 | 10.0 | 1.00 | 0.90 | 15.0 | 0.80 | 4.0 | 6.0 |
| A250-200 | 0.20 | 0.40 | 60 | 250 | 10.0 | 1.50 | 1.00 | 15.0 | 1.50 | 6.0 | 9.0 |
| A250-300 | 0.30 | 0.60 | 60 | 250 | 10.0 | 1.50 | 1.50 | 1.50 | 1.00 | 5.0 | 9.0 |
| A250-400 | 0.40 | 0.80 | 60 | 250 | 10.0 | 2.50 | 2.00 | 10.0 | 0.75 | 3.0 | 6.0 |
| A250-500 | 0.50 | 1.00 | 60 | 250 | 10.0 | 2.50 | 2.50 | 1.50 | 0.50 | 2.5 | 5.0 |
| A250-600 | 0.60 | 1.20 | 60 | 250 | 10.0 | 3.00 | 3.00 | 10.0 | 0.5 | 2.0 | 5.0 |
| A250-800 | 0.80 | 1.60 | 60 | 250 | 10.0 | 3.50 | 4.00 | 8.00 | 0.45 | 1.0 | 3.0 |
| A250-1000 | 1.00 | 2.00 | 60 | 250 | 10.0 | 4.00 | 5.00 | 10.0 | 0.28 | 0.8 | 2.5 |
Physical Dimensions(mm.)
FAQ
Q: Can I have a sample order?
A: Yes, we welcome sample order to test and check quality. Mixed
samples are acceptable.
Q: Can we have our logo or company name to be printed on your
products or the package?
A: Yes, for container order, we have OEM packing service, you need
to inform us your logo or company information in details. For bulk
cargo, we will use neutral packing.
Q: What adventages do you have?
A: Fast delivery and good service.
Stable quality with competitive price.
Strict management system.
Please tell me:
What product specifications do you need? when you ask for a
quotation.I will give you the most competitive price per as your
requirements. And we have many types for you to choose.
P.S.:If you can't find any products to meet your requirements.
welcome to send us the details drawings so that we can provide us
our professional & best service to you.
