Bobbins (9843000104)Part Number: 9843000104
43 BOBBIN RECTANGULAR
Explanation of Part Numbers:
– Digits 1 & 2 = Product Class
– Digits 3 & 4 = Material Grade
– Last digit 8 = Coated Bobbin
Bobbins are an economical and well-proven core design for many applications where relatively low but stable inductance values are required.
For higher frequency designs, use small bobbins in 43 material® .
For power applications, bobbins in 77 material are specified for AL and dc bias limits.
Bobbins in Figures 2-5 can be supplied with a uniform thermo-set plastic coating which can withstand a minimum breakdown of 500Vrms. This coating will change the dimensions a maximum of 0.5 mm (0.020″). The last digit of the thermo-set plastic coated part is an “8”.
For any bobbin requirement not listed in the catalog, please contact our customer service group for availability and pricing.
Weight: 3 (g)
| Dim | mm | mm tol | nominal inch | inch misc. |
| A | 8.05 | ±0.20 | 0.317 | _ |
| B | 19 | ±0.40 | 0.748 | _ |
| D | 12.7 | ±0.25 | 0.5 | _ |
| F | 5.55 | +0.25 | 0.223 | _ |
| G | 2.7 | +0.25 | 0.111 | _ |
| H | 8.05 | ±0.20 | 0.317 | _ |
Chart Legend
AL : Inductance Factor 
, Nl : Value of dc Ampere-turns, AW:Winding Area,
N/AWG : Number of Turns/Wire Size for Test Coil
| Electrical Properties | |
| AL(nH) | 39.0 ±10% |
| N/AWG | 50/28 |
| Aw(cm2) | 0.33 |
Bobbins are tested for AL value at 1kHz < 10 gauss.