1539M31 is a heavy duty hash choke in Hammond's 1539 Series EMI/RFI line, offering 5000 uH of inductance with a 2.2 A maximum DC current rating. Built on a high saturation flux density ferrite bobbin, it suits OEM engineers and technicians designing power-line filters, noise suppression stages or energy storage inductors.
Electrically, the 1539M31 is specified at 5000 uH with a +/-10% tolerance, a maximum DC resistance of 0.714 ohms, a maximum DC current of 2.2 A and a minimum Fo of 0.19 MHz. Inductance is measured at 1 kHz with 0 A DC current, and the typical inductance change is less than 5% at twice rated current, so the part holds its value well under DC bias.
The part occupies a 1.50 x 1.50 in maximum envelope (Dimension A 1.50 in (38 mm), Dimension B 1.50 in (38 mm)), with a typical Dimension C of 1.32 in (34 mm) and a typical Dimension D of 0.05 in (1 mm). It ships at 0.3 lbs (0.14 kg). Within the 1539 Series parts sharing this 1.50 x 1.50 in body, 1539M31 carries a mid-range inductance value, with siblings spanning 100 to 10000 uH.
Connections are made through 1 in long leads, tinned to within 1/8 in of the body, ready for soldering. The 1539M31 is RoHS compliant and REACH compliant.
| Series | 1539 Series |
| Description | Heavy duty hash choke |
| Product Type | RF Choke (EMI/RFI Choke) |
| Dimension A (Maximum) | 1.50 in (38 mm) |
| Dimension B (Maximum) | 1.50 in (38 mm) |
| Dimension C (Typical) | 1.32 in (34 mm) |
| Dimension D (Typical) | 0.05 in (1 mm) |
| Fo Minimum | 0.19 MHz |
| Inductance Change | Typically less than 5% at twice rated current |
| Inductance Tolerance | +/- 10% |
| Inductance L (+/- 10%) | 5000 uH |
| DC Current (I - D.C. Max) | 2.2 A |
| Inductance Test Condition | Measured at 1 kHz with 0 A DC current |
| DC Resistance (R - D.C. Max) | 0.714 Ohms |
| UPC | 623980300658 |
| UNSPSC | 39121301 |
| Part Number | 1539M31 |
| Shipping Weight | 0.3 lbs (0.14 kg) |
| Core | High saturation flux density ferrite bobbin |
| Leads | 1 in long, tinned to within 1/8 in of body |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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The 1539M31 is rated at 5000 uH with a +/-10% tolerance, measured at 1 kHz with 0 A DC current.
Its maximum DC current is 2.2 A, and its maximum DC resistance is 0.714 ohms.
According to the 1539 Series data, typical inductance change is less than 5% at twice rated current.
Maximum Dimension A is 1.50 in (38 mm) and maximum Dimension B is 1.50 in (38 mm); typical Dimension C is 1.32 in (34 mm) and typical Dimension D is 0.05 in (1 mm). Shipping weight is 0.3 lbs (0.14 kg).
It has 1 in long leads, tinned to within 1/8 in of the body.
Yes, the part is listed as both RoHS compliant and REACH compliant.
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