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Multilayer Ferrite Bead Inductors (TRMA)
DeMint High Current Multilayer Ferrite Bead Inductors lower DC resistance and handle up to 6A. DeMint TRMA series multilayer ferrite bead SMD inductor is one popular high current version of DeMint chips products. Ceramic materials and process technologies have allowed DeMint to lower the DC resistance of its chip ferrite beads, increasing rated current to create the TRMA series.
With a maximum current rating of up to 6A and a wide operating temperature range of between -55°C and +125°C, the TRMA series is ideally suited to applications in harsh environments. The series comes in 0402 size packaging (1 x 0.5 x 0.5 mm), for designers seeking to reduce board space without performance degradation. Low DC resistance also helps reduce power consumption for battery-powered applications.
The TRMA devices give effective EMI and RFI suppression and the range also offers high impedance values over a wide frequency range. Quoted reference values are between 7Ω and 1500Ω at 100MHz. Available in case sizes ranging from 0402, 0603, 0805, 1206, 1210, 1806, to 1812, the ferrite chip beads feature nickel barrier terminations with a solder plate finish to help ensure a good solder joint. Parts are supplied taped and reeled, and are fully compatible with automatic pick and place equipment.
Custom parts are available on request. DeMint will also produce devices outside these specifications to meet specific customer requirements,
please contact our sales for more information.
Download Complete Specification Multilayer Ferrite Bead High Current Inductor (TRMA) PDF (419KB).
Features:
- Low DC Resistance.
- Multiple Size Availability.
- Effective EMI Protection.
- High Soldering Heat Resistance.
Applications:
- Portable Equipment.
- Modem, Personal Computers.
- CD-ROM, Hard Disk, Printers.
| Dimensions (Unit: mm) (TRMA) | ||||||||
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| Type | A | B | C | D | E | F | G | |
| TRMA100505 (0402) | 1.0 ± 0.10 | 0.50 ± 0.10 | 0.5 ± 0.10 | 0.25 ± 0.10 | 0.4 | 1.2~1.4 | 0.4 | |
| TRMA160808 (0603) | 1.6 ± 0.20 | 0.80 ± 0.15 | 0.8 ± 0.15 | 0.30 ± 0.20 | 0.8 | 2.4~3.4 | 0.6 | |
| TRMA201209 (0805) | 2.0 ± 0.20 | 1.25 ± 0.20 | 0.9 ± 0.20 | 0.50 ± 0.30 | 1.2 | 3.0~4.0 | 1.0 | |
| TRMA321611 (1206) | 3.2 ± 0.20 | 1.60 ± 0.20 | 1.1 ± 0.20 | 0.50 ± 0.30 | 2.0 | 4.2~5.2 | 1.2 | |
| TRMA322513 (1210) | 3.2 ± 0.20 | 2.50 ± 0.20 | 1.3 ± 0.20 | 0.50 ± 0.30 | 2.0 | 5.5~6.5 | 1.8 | |
| TRMA451616 (1806) | 4.5 ± 0.25 | 1.60 ± 0.20 | 1.6 ± 0.20 | 0.50 ± 0.30 | 3.0 | 5.5~6.5 | 1.2 | |
| TRMA453215 (1812) | 4.5 ± 0.25 | 3.20 ± 0.20 | 1.5 ± 0.20 | 0.50 ± 0.30 | 3.0 | 5.5~6.5 | 2.4 | |
| Standard Electrical Specifications (TRMA100505) - EIA 0402 Size | |||||
| Part Number | Impedance (Ω) |
Tolerance (± %) |
Freq. (MHz) |
DCR (Ω)(max) |
IDC (mA)(max) |
| TRMA100505 - YTRYH100 | 10 | 25 | 100 | 0.030 | 1000 |
| Standard Electrical Specifications (TRMA160808) - EIA 0603 Size | |||||
| Part Number | Impedance (Ω) |
Tolerance (± %) |
Freq. (MHz) |
DCR (Ω)(max) |
IDC (mA)(max) |
| TRMA160808 - YTRYH100 | 10 | 25 | 100 | 0.020 | 4000 |
| TRMA160808 - YTRYH110 | 11 | 25 | 100 | 0.020 | 4000 |
| TRMA160808 - YTRYH150 | 15 | 25 | 100 | 0.030 | 3000 |
| TRMA160808 - YTRYH170 | 17 | 25 | 100 | 0.030 | 3000 |
| TRMA160808 - YTRYH190 | 19 | 25 | 100 | 0.030 | 3000 |
| TRMA160808 - YTRYH200 | 20 | 25 | 100 | 0.030 | 3000 |
| TRMA160808 - YTRYH220 | 22 | 25 | 100 | 0.030 | 3000 |
| TRMA160808 - YTRYH250 | 25 | 25 | 100 | 0.030 | 3000 |
| TRMA160808 - YTRYH300 | 30 | 25 | 100 | 0.030 | 3000 |
| TRMA160808 - YTRYH310 | 31 | 25 | 100 | 0.030 | 3000 |
| TRMA160808 - YTRYH320 | 32 | 25 | 100 | 0.035 | 3000 |
| TRMA160808 - YTRYH330 | 33 | 25 | 100 | 0.035 | 3000 |
| TRMA160808 - YTRYH400 | 40 | 25 | 100 | 0.035 | 3000 |
| TRMA160808 - YTRYH470 | 47 | 25 | 100 | 0.040 | 3000 |
| TRMA160808 - YTRYH500 | 50 | 25 | 100 | 0.040 | 3000 |
| TRMA160808 - YTRYH560 | 56 | 25 | 100 | 0.040 | 3000 |
| TRMA160808 - YTRYH600 | 60 | 25 | 100 | 0.040 | 3000 |
| TRMA160808 - YTRYH680 | 68 | 25 | 100 | 0.050 | 2500 |
| TRMA160808 - YTRYH700 | 70 | 25 | 100 | 0.050 | 2500 |
| TRMA160808 - YTRYH750 | 75 | 25 | 100 | 0.050 | 2500 |
| TRMA160808 - YTRYH800 | 80 | 25 | 100 | 0.050 | 2500 |
| TRMA160808 - YTRYH900 | 90 | 25 | 100 | 0.050 | 2500 |
| TRMA160808 - YTRYH101 | 100 | 25 | 100 | 0.050 | 2500 |
| TRMA160808 - YTRYH121 | 120 | 25 | 100 | 0.080 | 2500 |
| TRMA160808 - YTRYH151 | 150 | 25 | 100 | 0.085 | 2000 |
| TRMA160808 - YTRYH181 | 180 | 25 | 100 | 0.090 | 2000 |
| TRMA160808 - YTRYH201 | 200 | 25 | 100 | 0.095 | 2000 |
| TRMA160808 - YTRYH221 | 220 | 25 | 100 | 0.100 | 2000 |
| TRMA160808 - YTRYH241 | 240 | 25 | 100 | 0.120 | 1500 |
| TRMA160808 - YTRYH301 | 300 | 25 | 100 | 0.120 | 1500 |
| TRMA160808 - YTRYH331 | 330 | 25 | 100 | 0.120 | 1500 |
| TRMA160808 - YTRYH401 | 400 | 25 | 100 | 0.120 | 1500 |
| TRMA160808 - YTRYH451 | 450 | 25 | 100 | 0.150 | 1500 |
| TRMA160808 - YTRYH471 | 470 | 25 | 100 | 0.150 | 1500 |
| TRMA160808 - YTRYH501 | 500 | 25 | 100 | 0.150 | 1500 |
| TRMA160808 - YTRYH601 | 600 | 25 | 100 | 0.200 | 1000 |
| TRMA160808 - YTRYH701 | 700 | 25 | 100 | 0.250 | 800 |
| TRMA160808 - YTRYH751 | 750 | 25 | 100 | 0.250 | 800 |
| TRMA160808 - YTRYH801 | 800 | 25 | 100 | 0.250 | 800 |
| TRMA160808 - YTRYH102 | 1000 | 25 | 100 | 0.250 | 800 |
| TRMA160808 - YTRYH152 | 1500 | 25 | 100 | 0.400 | 500 |
| Standard Electrical Specifications (TRMA201209) - EIA 0805 Size | |||||
| Part Number | Impedance (Ω) |
Tolerance (± %) |
Freq. (MHz) |
DCR (Ω)(max) |
IDC (mA)(max) |
| TRMA201209 - YTRYH110 | 11 | 25 | 100 | 0.010 | 6000 |
| TRMA201209 - YTRYH130 | 13 | 25 | 100 | 0.020 | 5000 |
| TRMA201209 - YTRYH150 | 15 | 25 | 100 | 0.020 | 5000 |
| TRMA201209 - YTRYH170 | 17 | 25 | 100 | 0.020 | 5000 |
| TRMA201209 - YTRYH190 | 19 | 25 | 100 | 0.020 | 4000 |
| TRMA201209 - YTRYH220 | 22 | 25 | 100 | 0.020 | 4000 |
| TRMA201209 - YTRYH260 | 26 | 25 | 100 | 0.020 | 4000 |
| TRMA201209 - YTRYH280 | 28 | 25 | 100 | 0.020 | 4000 |
| TRMA201209 - YTRYH300 | 30 | 25 | 100 | 0.020 | 4000 |
| TRMA201209 - YTRYH310 | 31 | 25 | 100 | 0.020 | 4000 |
| TRMA201209 - YTRYH320 | 32 | 25 | 100 | 0.020 | 4000 |
| TRMA201209 - YTRYH390 | 39 | 25 | 100 | 0.020 | 3000 |
| TRMA201209 - YTRYH400 | 40 | 25 | 100 | 0.020 | 3000 |
| TRMA201209 - YTRYH420 | 42 | 25 | 100 | 0.025 | 3000 |
| TRMA201209 - YTRYH500 | 50 | 25 | 100 | 0.025 | 3000 |
| TRMA201209 - YTRYH600 | 60 | 25 | 100 | 0.030 | 3000 |
| TRMA201209 - YTRYH700 | 70 | 25 | 100 | 0.040 | 3000 |
| TRMA201209 - YTRYH750 | 75 | 25 | 100 | 0.040 | 3000 |
| TRMA201209 - YTRYH800 | 80 | 25 | 100 | 0.040 | 3000 |
| TRMA201209 - YTRYH900 | 90 | 25 | 100 | 0.040 | 3000 |
| TRMA201209 - YTRYH101 | 100 | 25 | 100 | 0.040 | 3000 |
| TRMA201209 - YTRYH121 | 120 | 25 | 100 | 0.040 | 3000 |
| TRMA201209 - YTRYH131 | 130 | 25 | 100 | 0.050 | 2500 |
| TRMA201209 - YTRYH151 | 150 | 25 | 100 | 0.050 | 2500 |
| TRMA201209 - YTRYH181 | 180 | 25 | 100 | 0.050 | 2500 |
| TRMA201209 - YTRYH201 | 200 | 25 | 100 | 0.050 | 2500 |
| TRMA201209 - YTRYH221 | 220 | 25 | 100 | 0.080 | 2000 |
| TRMA201209 - YTRYH241 | 240 | 25 | 100 | 0.080 | 2000 |
| TRMA201209 - YTRYH251 | 250 | 25 | 100 | 0.080 | 2000 |
| TRMA201209 - YTRYH301 | 300 | 25 | 100 | 0.080 | 2000 |
| TRMA201209 - YTRYH331 | 330 | 25 | 100 | 0.080 | 2000 |
| TRMA201209 - YTRYH391 | 390 | 25 | 100 | 0.100 | 2000 |
| TRMA201209 - YTRYH401 | 400 | 25 | 100 | 0.100 | 2000 |
| TRMA201209 - YTRYH451 | 450 | 25 | 100 | 0.100 | 2000 |
| TRMA201209 - YTRYH471 | 470 | 25 | 100 | 0.100 | 2000 |
| TRMA201209 - YTRYH501 | 500 | 25 | 100 | 0.100 | 2000 |
| TRMA201209 - YTRYH601 | 600 | 25 | 100 | 0.100 | 2000 |
| TRMA201209 - YTRYH751 | 750 | 25 | 100 | 0.120 | 1500 |
| TRMA201209 - YTRYH102 | 1000 | 25 | 100 | 0.120 | 1500 |
| TRMA201209 - YTRYH152 | 1500 | 25 | 100 | 0.300 | 1000 |
| Standard Electrical Specifications (TRMA321611) - EIA 1206 Size | |||||
| Part Number | Impedance (Ω) |
Tolerance (± %) |
Freq. (MHz) |
DCR (Ω)(max) |
IDC (mA)(max) |
| TRMA321611 - YTRYH070 | 7 | 25 | 100 | 0.015 | 6000 |
| TRMA321611 - YTRYH080 | 8 | 25 | 100 | 0.015 | 6000 |
| TRMA321611 - YTRYH110 | 11 | 25 | 100 | 0.015 | 6000 |
| TRMA321611 - YTRYH190 | 19 | 25 | 100 | 0.015 | 6000 |
| TRMA321611 - YTRYH260 | 26 | 25 | 100 | 0.015 | 6000 |
| TRMA321611 - YTRYH300 | 30 | 25 | 100 | 0.015 | 4000 |
| TRMA321611 - YTRYH310 | 31 | 25 | 100 | 0.015 | 4000 |
| TRMA321611 - YTRYH320 | 32 | 25 | 100 | 0.015 | 4000 |
| TRMA321611 - YTRYH350 | 35 | 25 | 100 | 0.015 | 4000 |
| TRMA321611 - YTRYH400 | 40 | 25 | 100 | 0.015 | 4000 |
| TRMA321611 - YTRYH420 | 42 | 25 | 100 | 0.015 | 4000 |
| TRMA321611 - YTRYH480 | 48 | 25 | 100 | 0.020 | 4000 |
| TRMA321611 - YTRYH500 | 50 | 25 | 100 | 0.020 | 4000 |
| TRMA321611 - YTRYH520 | 52 | 25 | 100 | 0.020 | 4000 |
| TRMA321611 - YTRYH600 | 60 | 25 | 100 | 0.020 | 4000 |
| TRMA321611 - YTRYH680 | 68 | 25 | 100 | 0.020 | 4000 |
| TRMA321611 - YTRYH700 | 70 | 25 | 100 | 0.020 | 4000 |
| TRMA321611 - YTRYH750 | 75 | 25 | 100 | 0.025 | 3000 |
| TRMA321611 - YTRYH800 | 80 | 25 | 100 | 0.025 | 3000 |
| TRMA321611 - YTRYH900 | 90 | 25 | 100 | 0.030 | 3000 |
| TRMA321611 - YTRYH101 | 100 | 25 | 100 | 0.030 | 2500 |
| TRMA321611 - YTRYH121 | 120 | 25 | 100 | 0.030 | 2500 |
| TRMA321611 - YTRYH151 | 150 | 25 | 100 | 0.040 | 2000 |
| TRMA321611 - YTRYH201 | 200 | 25 | 100 | 0.050 | 2000 |
| TRMA321611 - YTRYH221 | 220 | 25 | 100 | 0.050 | 2000 |
| TRMA321611 - YTRYH121 | 120 | 25 | 100 | 0.030 | 2500 |
| TRMA321611 - YTRYH151 | 150 | 25 | 100 | 0.040 | 2000 |
| TRMA321611 - YTRYH201 | 200 | 25 | 100 | 0.050 | 2000 |
| TRMA321611 - YTRYH221 | 220 | 25 | 100 | 0.050 | 2000 |
| TRMA321611 - YTRYH301 | 300 | 25 | 100 | 0.060 | 2000 |
| TRMA321611 - YTRYH331 | 330 | 25 | 100 | 0.060 | 2000 |
| TRMA321611 - YTRYH391 | 390 | 25 | 100 | 0.060 | 2000 |
| TRMA321611 - YTRYH401 | 400 | 25 | 100 | 0.100 | 2000 |
| TRMA321611 - YTRYH501 | 500 | 25 | 100 | 0.100 | 2000 |
| TRMA321611 - YTRYH601 | 600 | 25 | 100 | 0.100 | 2000 |
| TRMA321611 - YTRYH102 | 1000 | 25 | 50 | 0.150 | 1200 |
| TRMA321611 - YTRYH122 | 1200 | 25 | 50 | 0.180 | 1000 |
| TRMA321611 - YTRYH152 | 1500 | 25 | 50 | 0.200 | 800 |
| Standard Electrical Specifications (TRMA322513) - EIA 1210 Size | |||||
| Part Number | Impedance (Ω) |
Tolerance (± %) |
Freq. (MHz) |
DCR (Ω)(max) |
IDC (mA)(max) |
| TRMA322513 - YTRYH190 | 19 | 25 | 100 | 0.025 | 4000 |
| TRMA322513 - YTRYH320 | 32 | 25 | 100 | 0.025 | 4000 |
| TRMA322513 - YTRYH600 | 60 | 25 | 100 | 0.025 | 4000 |
| TRMA322513 - YTRYH900 | 90 | 25 | 100 | 0.025 | 3000 |
| Standard Electrical Specifications (TRMA451616) - EIA 1806 Size | |||||
| Part Number | Impedance (Ω) |
Tolerance (± %) |
Freq. (MHz) |
DCR (Ω)(max) |
IDC (mA)(max) |
| TRMA451616 - YTRYH190 | 19 | 25 | 100 | 0.020 | 6000 |
| TRMA451616 - YTRYH400 | 40 | 25 | 100 | 0.020 | 6000 |
| TRMA451616 - YTRYH500 | 50 | 25 | 100 | 0.020 | 6000 |
| TRMA451616 - YTRYH600 | 60 | 25 | 100 | 0.020 | 5000 |
| TRMA451616 - YTRYH700 | 70 | 25 | 100 | 0.025 | 5000 |
| TRMA451616 - YTRYH750 | 75 | 25 | 100 | 0.025 | 5000 |
| TRMA451616 - YTRYH800 | 80 | 25 | 100 | 0.025 | 4000 |
| TRMA451616 - YTRYH900 | 90 | 25 | 100 | 0.100 | 2000 |
| TRMA451616 - YTRYH101 | 100 | 25 | 100 | 0.100 | 2000 |
| TRMA451616 - YTRYH151 | 150 | 25 | 100 | 0.100 | 2000 |
| TRMA451616 - YTRYH191 | 190 | 25 | 100 | 0.100 | 2000 |
| TRMA451616 - YTRYH301 | 300 | 25 | 100 | 0.100 | 2000 |
| TRMA451616 - YTRYH471 | 470 | 25 | 100 | 0.100 | 2000 |
| TRMA451616 - YTRYH601 | 600 | 25 | 100 | 0.100 | 2000 |
| TRMA451616 - YTRYH851 | 850 | 25 | 100 | 0.100 | 2000 |
| TRMA451616 - YTRYH102 | 1000 | 25 | 100 | 0.100 | 2000 |
| TRMA451616 - YTRYH132 | 1300 | 25 | 100 | 0.100 | 2000 |
| Standard Electrical Specifications (TRMA453215) - EIA 1812 Size | |||||
| Part Number | Impedance (Ω) |
Tolerance (± %) |
Freq. (MHz) |
DCR (Ω)(max) |
IDC (mA)(max) |
| TRMA453215 - YTRYH190 | 19 | 25 | 100 | 0.030 | 6000 |
| TRMA453215 - YTRYH300 | 30 | 25 | 100 | 0.030 | 6000 |
| TRMA453215 - YTRYH470 | 47 | 25 | 100 | 0.030 | 6000 |
| TRMA453215 - YTRYH500 | 50 | 25 | 100 | 0.030 | 6000 |
| TRMA453215 - YTRYH600 | 60 | 25 | 100 | 0.030 | 6000 |
| TRMA453215 - YTRYH700 | 70 | 25 | 100 | 0.030 | 6000 |
| TRMA453215 - YTRYH800 | 80 | 25 | 100 | 0.030 | 4000 |
| TRMA453215 - YTRYH900 | 90 | 25 | 100 | 0.030 | 4000 |
| TRMA453215 - YTRYH121 | 120 | 25 | 100 | 0.030 | 4000 |
| TRMA453215 - YTRYH125 | 125 | 25 | 100 | 0.030 | 4000 |
| TRMA453215 - YTRYH151 | 150 | 25 | 100 | 0.030 | 4000 |
| TRMA453215 - YTRYH191 | 190 | 25 | 100 | 0.030 | 4000 |
| Environmental Characteristics (TRMA Series) | ||
| Item | Specification | Test Methods |
| Flexure Strength | The forces applied on the right conditions must not damage the terminal electrode and the ferrite | Test device shall be soldered on the substrate Substrate Dimension:100×40×1.6mm  Deflection: 2.0mm Keeping Time: 30sec For 0402, substrate dimension is 100×40×0.8mm |
| Vibration | Test device shall be soldered on the substrate Oscillation Frequency : 10 to 55 to 10Hz for 1min Amplitude : 1.5mm Time : 2hrs for each axis (X,Y&Z), total 6hrs |
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| Resistance to Soldering Heat | Appearance: No damage More than 75% of the terminal electrode should be covered with solder. Impedance: within± 30% of initial value |
Pre-heating: 150°C, 1min Solder Temperature: 260 ± 5°C Immersion Time: 10 ± 1sec |
| Solderability | The electrodes shall be at least 90% covered with new solder coating | Pre-heating: 150°C, 1min Solder Temperature: 245 ± 5°C Immersion Time: 4 ± 1sec |
| Terminal Strength Test | 0402 series : ≥0.2kg 0603 series : ≥0.5kg 0805 series : ≥1.0kg other series : ≥ 2.0kg |
 Test device shall be soldered on the substrate |
| Temperature Cycle | Appearance: No damage Impedance: within ± 30% of initial value | One cycle: One cycle/step1: -55 ± 3°C for 30min step2: 25 ± 2°C for 3.0min step3:125 ± 3°C for 30min step4:25 ± 2°C for 3.0min Total: 100cycles Measured after exposure in the room condition for 24hrs |
| Humidity Resistance | Temperature: 40 ± 2°C Relative Humidity: 90 ~ 95% time: 1000hrs Measured after exposure in the room condition for 24hrs |
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| High Temperature Resistance | Temperature: 125 ± 3°C Relative Humidity : 0% Applied Current: Rated Current time: 1000hrs Measured after exposure in the room condition for 24hrs |
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| Low Temperature Resistance | Temperature: -55 ± 3°C TR elative Humidity : 0% time: 1000hrs Measured after exposure in the room condition for 24hrs |
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| Order Codes (TRMA) | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| TRMA160808 | Y | TR | Y | H | 100 | ||||||||||||||||||||||||||||||||||||||||||||||||
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