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:
  1. Low DC Resistance.
  2. Multiple Size Availability.
  3. Effective EMI Protection.
  4. High Soldering Heat Resistance.
Applications:
  1. Portable Equipment.
  2. Modem, Personal Computers.
  3. CD-ROM, Hard Disk, Printers.
Dimensions (Unit: mm) (TRMA)
(TRMA) Recommended Pattern and Dimensions
(TRMA) Recommended Pattern and Dimensions
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 75025 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
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
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
Low Temperature Resistance Temperature: -55 ± 3°C
TR elative Humidity : 0% time: 1000hrs
Measured after exposure in the room condition for 24hrs
Order Codes (TRMA)
TRMA160808 Y TR Y H 100
Part Number
TRMA1005050402
TRMA1608080603
TRMA2012090805
TRMA3216111206
TRMA3225131210
TRMA4516161806
TRMA4532151812
Impedance Tolerance
Y ± 25%
M ± 20%
Package
TR Taping Reel
Design Code
Y ui:200
Q ui:75
Current
H High Current
N General Current
Impedance
100 10 Ω
110 11 Ω
451 450 Ω
152 1500 Ω