Hammond 1539M24 2500uH 2.2A Ferrite Bobbin EMI/RFI Choke
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Create Free Business AccountKey Features
- 2500 uH inductance, +/-10% tolerance, measured at 1 kHz with 0 A DC
- 2.2 A maximum DC current rating
- 0.499 ohm maximum DC resistance
- Minimum Fo of 0.34 MHz
- Typical inductance change under 5% at twice rated current
- High saturation flux density ferrite bobbin construction
- 1 in long leads, tinned to within 1/8 in of the body
- RoHS and REACH compliant
The Hammond 1539M24 is a 2500 uH RF choke from the 1539 Series of EMI/RFI chokes, described by the manufacturer as a heavy duty hash choke. It is wound on a high saturation flux density ferrite bobbin and is intended for engineers, OEM designers and repair technicians who need a through-lead inductor for filtering or energy storage duty at up to 2.2 A DC.
Electrically, the 1539M24 is specified at 2500 uH with a +/-10% tolerance, a maximum DC resistance of 0.499 ohms, a maximum DC current of 2.2 A and a minimum Fo of 0.34 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 1.11 in maximum envelope (Dimension A 1.50 in (38 mm), Dimension B 1.11 in (28 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 1.11 in body, 1539M24 carries a mid-range inductance value, with siblings spanning 50 to 5000 uH.
Connections are made through 1 in long leads, tinned to within 1/8 in of the body, ready for soldering. The 1539M24 is RoHS compliant and REACH compliant.
Ideal For
- EMI/RFI noise filtering
- Energy storage inductors
- Hash (noise) suppression chokes
- DC filtering up to 2.2 A
Overview
| Series | 1539 Series |
| Description | Heavy duty hash choke |
| Product Type | RF Choke (EMI/RFI Choke) |
Dimensions
| Dimension A (Maximum) | 1.50 in (38 mm) |
| Dimension B (Maximum) | 1.11 in (28 mm) |
| Dimension C (Typical) | 1.32 in (34 mm) |
| Dimension D (Typical) | 0.05 in (1 mm) |
Electrical
| Fo Minimum | 0.34 MHz |
| Inductance Change | Typically less than 5% at twice rated current |
| Inductance Tolerance | +/- 10% |
| Inductance L (+/- 10%) | 2500 uH |
| DC Current (I - DC Max) | 2.2 A |
| Inductance Test Condition | Measured at 1 kHz with 0 A DC current |
| DC Resistance (R - DC Max) | 0.499 Ohms |
Identifiers
| UPC | 623980300467 |
| UNSPSC | 39121301 |
| Part Number | 1539M24 |
Packaging & Shipping
| Shipping Weight | 0.3 lbs (0.14 kg) |
Construction & Finish
| Core | High saturation flux density ferrite bobbin |
| Leads | 1 in long, tinned to within 1/8 in of body |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
What is the inductance and tolerance of the 1539M24?▾
The 1539M24 is rated at 2500 uH with a +/-10% tolerance, measured at 1 kHz with 0 A DC current.
How much DC current can the 1539M24 carry?▾
Its maximum DC current is 2.2 A, and its maximum DC resistance is 0.499 ohms.
Does the inductance drop under DC load?▾
According to the 1539 Series data, typical inductance change is less than 5% at twice rated current.
What size is the 1539M24?▾
Maximum Dimension A is 1.50 in (38 mm) and maximum Dimension B is 1.11 in (28 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).
What kind of leads does it have?▾
It has 1 in long leads, tinned to within 1/8 in of the body.
Is it RoHS and REACH compliant?▾
Yes, the part is listed as both RoHS compliant and REACH compliant.
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