littelfuse.com
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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for
surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse
product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages
arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless
otherwise agreed by Littelfuse.
High Current Fuses
MIDI®, Clear MIDI®, and One Hole MIDI® Style Bolt-down Fuse
Rated 32V
This MIDI® style fuse offers a bolt-on space saving fuse for high current wiring protection
and provides time delay characteristics with “Diffusion Pill Technology”. The MIDI® was
designed and patented by Littelfuse.
MIDI® Fuses
Clear MIDI® Fuses
(transparent nylon
composite cover)
One Hole MIDI® Fuses
Specifications
Interrupting Rating: 1000A @ 32 VDC
Voltage Rating: 32 VDC
Operating Temperature Range: -40˚C to + 125˚C
Black Housing Material: PA-GF25FR
Clear Housing Material: PA-6/66
Terminal: Tin plated Copper
Mounting Torque M5: 4.5 Nm +/- 1Nm
Mounting Torque M6: 6.0 Nm +/- 1Nm
Complies with: ISO 8820-5:2003, UL 248 Special Purpose Fuses
Ordering Information
Part Number Package
Size
Housing
Color
Bolt
Size
Bolt Hole
Qty Mfg Location
0498xxx.M 1000 Black M5 2Mexico
0498xxx.M-CN 1000 Black M5 2 China
0498xxx.H 100 Black M5 2Mexico
0498xxx.MXM6 1000 Black M6 2Mexico
0498xxx.MXM6-CN 1000 Black M6 2 China
0498xxx.MX1M5 1000 Black M5 1Mexico
0498xxx.MX1M5-CN 1000 Black M5 1 China
0498xxx.MX1M6 1000 Black M6 1 China
0498xxx.MX1M6-CN 1000 Black M6 1 China
0498xxx.MXT 1000 Clear M5 2Mexico
0498xxx.MXT-CN 1000 Clear M5 2 China
0498xxx.MXTM6 1000 Clear M6 2 Mexico
0498xxx.MXTM6-CN 1000 Clear M6 2 China
* Materials manufactured in Asia are produced to the same specifications as materials manufactured in North America, and
meets the same test requirements. Multiple production locations are for capacity expanison only.
Ratings
Part Number Current
Rating
(A)
Font
Color
Typ. Voltage Drop
max. (mV)
Cold Resistance
(mΩ)
I2t
(A2s)
0498023._223 90 3.43 1,800
0498030._230 65 2.06 4,200
0498040._ 40 65 1.398 10,000
0498050._ 50 65 1.025 13,000
0498060._ 60 68 0.865 21,700
0498070._ 70 70 0.72 24,000
0498080._ 80 58 0.541 24,600
0498100._ 100 60 0.457 51,300
0498125._2125 71 0.394 73,200
0498150._1,2 150 77 0.323 81,900
0498175._1,2 175 77 0.285 100,000
0498200._1,2 200 77 0.261 125,000
Time-Current Characteristics
% of Rating
Opening Time Min / Max (s)
23-125A 150-200A
75 – / – 360,000 s / –
100 360,000 s / – – / –
110 14,400 s / – – / –
150 90 s / 3,600 s – / –
200 3 s / 100 s 1 s / 15 s
300
350
0.3 s / 3 s
– / –
– / –
0.3 s / 5 s
500 0.1 s / 1 s 0.1 s / 1 s
Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for
surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse
product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages
arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless
otherwise agreed by Littelfuse.
littelfuse.com 26
Dimensions
Dimensions in mm
Part
Number
“A”
mm (inch)
“B”
mm (inch)
“C”
mm (inch)
0498023._ 0.41 (0.016) 4.0 (0.157) 8.0 (0.315)
0498030._ 0.41 (0.016) 4.0 (0.157) 8.0 (0.315)
0498040._ 0.41 (0.016) 4.0 (0.157) 8.0 (0.315)
0498050._ 0.41 (0.016) 4.0 (0.157) 8.0 (0.315)
0498060._ 0.41 (0.016) 4.0 (0.157) 8.0 (0.315)
0498070._ 0.41 (0.016) 4.0 (0.157) 8.0 (0.315)
0498080._ 0.41 (0.016) 4.0 (0.157) 8.0 (0.315)
0498100._ 0.63 (0.025) 4.3 (0.169) 8.3 (0.327)
0498125._ 0.63 (0.025) 4.3 (0.169) 8.3 (0.327)
0498150._ 0.63 (0.025) 4.3 (0.169) 8.3 (0.327)
0498175._ 0.63 (0.025) 4.3 (0.169) 8.3 (0.327)
0498200._ 0.63 (0.025) 4.3 (0.169) 8.3 (0.327)
MIDI®, Clear MIDI®, and One Hole MIDI® Style Bolt-down Fuse Rated 32V
MIDI Rerating Curve
85
90
95
100
105
110
115
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120
Ambient Temperature (C)
Rerating Factor (% Rated Current)
Temperature Rerating Curve
Time-Current Characteristic Curves
0.01
0.1
1
10
100
1000
10 100 1000 10000
Time (s)
Current (A)
23
30
40
50
60
70
80
100
125
150
175
200
High Current Fuses