Hard Ferrite Disc Ferrite Magnets with Dimple Hole (D-009)

2024-08-25 20:00:54
Model NO.: Y25
Origin: Ningbo, China
HS Code: 8505190090
Hard Ferrite Disc Ferrite Magnets With Dimple Hole(D-009)

Ceramic (ferrite) magnets are composed of strontium carbonate and iron oxide. Ferrite Magnets are charcoal gray in color and usually appear in the forms of discs, rings, blocks, cylinders, and sometimes arcs for motors.
Least expensive material compared to AlNiCo and rare earth magnets

High intrinsic coercive force

Available in simple shapes only due to manufacturing process

Lower service temperature than AlNiCo, greater than rare earth

Lower energy product than AlNiCo and rare earth magnets

Most common grades of Y25, Y30, Y30H-1, Y30H-2, Y32, Y33 ceramic are 1, 5 and 8 (1-8 possible)
Magnetic properties of Sintered Ferrite Magnets:
                                                                            Chinese standard
Material Br Hcb Hcj (BH)max
mT KGs KA/m KOe KA/m KOe KJ/m 3 MGOe
Y10T 200~235 2.0~2.35 125~160 1.57~2.01 210~280 2.64~3.52 6.5~9.5 0.8~1.2
Y20 320~380 3.2~3.8 135~190 1.70~2.38 140~195 1.76~2.45 18.0~22.0 2.3~2.8
Y22H 310~360 3.1~3.6 220~250 2.77~3.14 280~320 3.52~4.02 20.0~24.0 2.5~3.0
Y23 320~370 3.2~3.7 170~190 2.14~2.38 190~230 2.39~2.89 20.0~25.5 2.5~3.2
Y25 360~380 3.6~4.0 135~170 1.70~2.14 140~200 1.76~2.51 22.5~28.0 2.8~3.5
Y26H 360~390 3.6~3.9 220~250 2.77~3.14 225~255 2.83~3.21 23.0~28.0 2.9~3.5
Y27H 370~400 3.7~4.0 205~250 2.58~3.14 210~255 2.64~3.21 25.0~29.0 3.1~3.7
Y30 370~400 3.7~4.0 175~210 2.20~2.64 180~220 2.26~2.77 26.0~30.0 3.3~3.8
Y30BH 380~390 3.8~3.90 223~235 2.80~2.95 231~245 2.90~3.08 27.0~30.0 3.4~3.7
Y30-1 380~400 3.8~4.0 230~275 2.89~3.46 235~290 2.95~3.65 27.0~32.0 3.4~4.0
Y30H-2 395~415 3.95~4.15 275~300 3.46~3.77 310~335 3.90~4.21 28.5~32.5 3.5~4.0
Y32 400~420 4.0~4.2 160~190 2.01~2.38 165~195 2.07~2.45 30.0~33.5 3.8~4.2
Y33 410~430 4.1~4.3 220~250 2.77~3.14 225~255 2.83~3.21 31.5~35.0 4.0~4.4
Y35 400~410 4.00~4.10 175~195 2.20~2.45 180~200 2.26~2.51 30.0~32.0 3.8~4.0

                                                                        USA standard
Material Br Hcb Hcj (BH)max
mT KGs KA/m KOe KA/m KOe KJ/m 3 MGOe
C1 230 2.3 148 1.86 258 3.5 8.36 1.05
C5 380 3.8 191 2.4 199 2.5 27 3.4
C7 340 3.4 258 3.23 318 4 21.9 2.75
C8(=C8A) 385 3.85 235 2.95 242 3.05 27.8 3.5
C8B 420 4.2 232 2.913 236 2.96 32.8 4.12
C9 380 3.8 280 3.516 320 4.01 26.4 3.32
C10 400 4 288 3.617 280 3.51 30.4 3.82
C11 430 4.3 200 2.512 204 2.56 34.4 4.32

                                                                                  Europe standard
The standard from International Electronics Committee (IEC404-8-1)
O× 100=Y10T=C1    × 300=Y30=C5    O× 330=Y30 BH
Grade Allowed Value (min-typical)
Br Hcb BrHcj (BH)max
mT KGs KA/m KOe KA/m KOe KJ/m 3 MGOe
HF8/22 200-220 2.00-2.20 125-140 1.57-1.76 220-230 2.76-2.89 6.5-6.8 0.8-1.1
HF20/19 320-333 3.20-3.33 170-190 2.14-2.39 190-200 2.39-2.51 20.0-21.0 2.5-2.7
HF20/28 310-325 3.10-3.25 220-230 2.76-2.89 280-290 3.52-3.64 20.0-21.0 2.5-2.7
HF22/30 350-365 3.50-3.65 255-265 3.20-3.33 290-300 3.64-3.77 22.0-23.5 2.8-3.0
HF24/16 350-365 3.50-3.65 155-175 1.95-2.20 160-180 2.01-2.26 24.0-25.5 3.0-3.2
HF24/23 350-365 3.50-3.65 220-230 2.76-2.89 230-240 2.89-3.01 24.0-25.5 3.0-3.2
HF24/35 360-370 3.60-3.70 260-270 3.27-3.39 350-360 4.40-4.52 24.0-25.5 3.0-3.2
HF26/16 370-380 3.70-3.80 155-175 1.95-2.20 160-180 2.01-2.26 26.0-27.0 3.2-3.4
HF26/18 370-380 3.70-3.80 175-190 2.20-2.39 180-190 2.26-2.39 26.0-27.0 3.3-3.4
HF26/24 370-380 3.70-3.80 230-240 2.89-3.01 240-250 3.01-3.14 26.0-27.0 3.3-3.4
HF26/26 370-380 3.70-3.80 230-240 2.89-3.01 260-270 3.27-3.39 26.0-27.0 3.3-3.4
HF26/30 385-395 3.85-3.95 260-270 3.27-3.39 300-310 3.77-3.89 26.0-27.0 3.3-3.4
HF28/26 385-395 3.85-3.95 250-265 3.14-3.33 260-275 3.27-3.45 28.0-30.0 3.5-3.8
HF28/28 385-395 3.85-3.95 260-270 3.27-3.39 280-290 3.50-3.60 28.0-30.0 3.5-3.8
HF30/26 395-405 3.95-4.05 250-260 3.14-3.33 260-270 3.27-3.39 30.0-31.5 3.8-3.9
HF32/17 410-420 4.10-4.20 160-180 2.01-2.26 165-175 2.07-2.20 32.0-33.0 4.0-4.1
HF32/22 410-420 4.10-4.20 215-225 2.70-2.83 220-230 2.76-2.89 32.0-33.0 4.0-4.1
HF32/25 410-420 4.10-4.20 240-250 3.01-3.14 250-260 3.14-3.27 32.0-33.0 4.0-4.1

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