Hammond 1540M02 25uH 5.5A High Current Toroid Inductor
Ships from and sold by A5 IT
Exclusive pricing and Net-30 terms. Sign in or create a free account.
Create Free Business AccountKey Features
- 25 uH nominal inductance, +/-15% at 0 A DC
- 5.5 A rated DC current with 12 uH minimum inductance at rated current
- Holds 0.8 Ls at 3.25 A DC
- 0.014 ohm maximum DC resistance
- Toroid construction for EMI/RFI filtering and switching power supply energy storage
- Minimum 0.5 in long leads for P.C. board mounting
- Operating range -20°C to 85°C; storage -20°C to 105°C
- RoHS and REACH compliant
1540M02 is a 1540 Series high current toroid inductor with 25 uH of nominal inductance and a 5.5 A rated DC current. The manufacturer describes it as an RF choke and heavy duty hash choke, and the series is designed for EMI/RFI filtering and energy storage in switching power supplies.
Nominal inductance is 25 uH +/-15%, measured at 0 A DC. At the rated DC current of 5.5 A, the 1540M02 maintains a minimum inductance of 12 uH, and it reaches 0.8 Ls (80% of nominal inductance) at 3.25 A DC. Maximum DC resistance is 0.014 ohms, which helps designers estimate copper losses at their operating current.
The part measures 0.88 in (22 mm) maximum for Dimension A and 0.44 in (11 mm) maximum for Dimension B, with a minimum Dimension C of 0.19 in (5 mm). Typical lead diameter is 0.04 in (1 mm), and shipping weight is 0.1 lbs (0.05 kg). Among the 1540 Series parts sharing the 0.88 in Dimension A body, 1540M02 offers a mid-range inductance value, with that size group spanning 10 to 450 uH.
Leads are a minimum of 0.5 in long for P.C. board mounting. The series is specified for an operating temperature range of -20°C to 85°C and a storage temperature range of -20°C to 105°C. The 1540M02 is RoHS compliant and REACH compliant.
Ideal For
- EMI/RFI filtering
- Energy storage inductors for switching power supplies
- High current DC filter chokes
- P.C. board mounted power circuits
Overview
| Series | 1540 Series |
| Description | Heavy duty hash choke |
| Product Type | High Current Toroid Inductor (RF Choke) |
Dimensions
| Dimension A (Maximum) | 0.88 in (22 mm) |
| Dimension B (Maximum) | 0.44 in (11 mm) |
| Dimension C (Minimum) | 0.19 in (5 mm) |
| Lead Diameter (Typical) | 0.04 in (1 mm) |
Electrical
| Rated DC Current | 5.5 A |
| DC Amps For 0.8 Ls | 3.25 A |
| Inductance Tolerance | +/- 15% |
| DC Resistance (Max) | 0.014 Ohms |
| Minimum Inductance At Rated DC | 12 uH |
| Inductance Ls (+/- 15%) @ 0 A DC | 25 uH |
Identifiers
| UPC | 623980200927 |
| UNSPSC | 39121301 |
| Part Number | 1540M02 |
Packaging & Shipping
| Shipping Weight | 0.1 lbs (0.05 kg) |
Construction & Finish
| Mounting | P.C. board |
| Core Type | Toroid |
| Lead Length | Minimum 0.5 in |
Environmental & Protection
| Storage Temperature | -20°C to 105°C |
| Operating Temperature | -20°C to 85°C |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
Purchasing this for your business?
Business account holders get access to exclusive pricing, volume discounts, and dedicated support. Create a free account to get started.
Frequently Asked Questions
What is the inductance of the 1540M02?▾
Nominal inductance is 25 uH +/-15% at 0 A DC, with a minimum of 12 uH at the rated DC current of 5.5 A.
What is the DC resistance of the 1540M02?▾
Maximum DC resistance is 0.014 ohms.
How is the 1540M02 mounted?▾
It has minimum 0.5 in long leads for P.C. board mounting, with a typical lead diameter of 0.04 in (1 mm).
What temperature range is it rated for?▾
Operating temperature range is -20°C to 85°C and storage temperature range is -20°C to 105°C.
What are the dimensions of the 1540M02?▾
Dimension A is 0.88 in (22 mm) maximum, Dimension B is 0.44 in (11 mm) maximum and Dimension C is 0.19 in (5 mm) minimum. Shipping weight is 0.1 lbs (0.05 kg).
Related Products
Save 52%1540M01 — RF Choke, heavy duty hash choke, inductance 10uH, DC current 7.5A, 1540 series
Hammond Manufacturing · 1540M01
Save 52%1540M03 — RF Choke, heavy duty hash choke, inductance 125uH, DC current 1.5A, 1540 series
Hammond Manufacturing · 1540M03
Save 52%1539M32 — RF Choke, heavy duty hash choke, inductance 10000uH, DC current 1.5A, 1539 series
Hammond Manufacturing · 1539M32
Save 52%1540M04 — RF Choke, heavy duty hash choke, inductance 275uH, DC current 1.3A, 1540 series
Hammond Manufacturing · 1540M04
Save 52%1539M31 — RF Choke, heavy duty hash choke, inductance 5000uH, DC current 2.2A, 1539 series
Hammond Manufacturing · 1539M31