A72 Series PTC Resettable Fuses Current Overload Protection , Low
Breaking Capacity
A72.pdf
A72 Series is designed to provide overcurrent protection to 72Vdc
maximum voltage with a maximum 40A short circuit rating.
72Vdc max voltage w/max 40A short circuit rating
RoHS compliant, Lead-Free and HalogenFree*
Resettable feature
Ideal for a broad range of general electronics using a
low voltage power supply
Performance Specification
| Model | V max | Imax | I hold | I trip | Pd | Maximum Time To Trip | Resistance |
| Current | Time | Rimin | Rimax | R1max |
| (Vdc) | (A) | (A) | (A) | (W) | (A) | (Sec) | (Ω) | (Ω) | (Ω) |
| A72-020 | 72 | 40 | 0.20 | 0.40 | 0.52 | 1.00 | 3.6 | 1.50 | 2.84 | 4.49 |
| A72-025 | 72 | 40 | 0.25 | 0.50 | 0.52 | 1.25 | 3.2 | 1.00 | 1.95 | 3.00 |
| A72-030 | 72 | 40 | 0.30 | 0.72 | 0.59 | 1.50 | 3.0 | 0.76 | 1.38 | 2.20 |
| A72-040 | 72 | 40 | 0.40 | 0.80 | 0.66 | 2.00 | 3.8 | 0.45 | 0.88 | 1.40 |
| A72-050 | 72 | 40 | 0.50 | 1.00 | 0.80 | 2.50 | 4.0 | 0.40 | 0.79 | 1.20 |
| A72-065 | 72 | 40 | 0.65 | 1.30 | 0.90 | 3.25 | 5.3 | 0.27 | 0.50 | 0.74 |
| A72-075 | 72 | 40 | 0.75 | 1.50 | 0.95 | 3.75 | 6.3 | 0.18 | 0.42 | 0.62 |
| A72-090 | 72 | 40 | 0.90 | 1.80 | 1.00 | 4.50 | 7.2 | 0.14 | 0.33 | 0.49 |
| A72-110 | 72 | 40 | 1.10 | 2.20 | 1.51 | 5.50 | 8.2 | 0.14 | 0.27 | 0.40 |
| A72-135 | 72 | 40 | 1.35 | 2.70 | 1.71 | 6.75 | 9.6 | 0.12 | 0.21 | 0.32 |
| A72-160 | 72 | 40 | 1.60 | 3.20 | 1.98 | 8.00 | 11.4 | 0.09 | 0.16 | 0.24 |
| A72-185 | 72 | 40 | 1.85 | 3.70 | 2.10 | 9.25 | 12.6 | 0.08 | 0.14 | 0.21 |
| A72-250 | 72 | 40 | 2.50 | 5.00 | 2.50 | 12.50 | 15.6 | 0.05 | 0.10 | 0.15 |
| A72-300 | 72 | 40 | 3.00 | 6.00 | 2.80 | 15.00 | 19.8 | 0.04 | 0.08 | 0.12 |
| A72-375 | 72 | 40 | 3.75 | 7.50 | 3.20 | 18.75 | 24.0 | 0.03 | 0.06 | 0.10 |
| A72-500 | 72 | 40 | 5.00 | 10.0 | 3.20 | 18.75 | 24.0 | 0.02 | 0.06 | 0.10 |
I hold = Hold Current. Maximum current device will not trip in 25°C
still air.
I trip = Trip Current. Minimum current at which the device will
always trip in 25°C still air.
V max = Maximum operating voltage device can withstand without
damage at rated current (Imax).
I max = Maximum fault current device can withstand without damage
at rated voltage (V max).
Pd = Power dissipation when device is in the tripped state in 25°C
still air environment at rated voltage.
Ri min/max = Minimum/Maximum device resistance prior to tripping at
25°C.
R1max = Maximum device resistance is measured one hour post reflow.
CAUTION : Operation beyond the specified ratings may result in
damage and possible arcing and flame.
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.
