MF-RX300/72-0 Bourns Inc., MF-RX300/72-0 Datasheet - Page 2

• Manufacturer Part Number: MF-RX300/72-0
• Description: FUSE PTC RESET 3.00A HOLD
• Manufacturer: Bourns Inc.
• Series: MF-RXr

Specifications of MF-RX300/72-0

• R Min/max: 0.040 ~ 0.060 Ohm
• Voltage - Max: 72V
• Time To Trip: 19.8s
• Current - Hold (ih) (max): 3A
• Current - Trip (it): 6A
• Current - Max: 40A
• Package / Case: Radial
• Holding Current: 3A
• Tripping Current: 6A
• Initial Resistance Max: 0.06ohm
• Operating Voltage: 72V
• Ptc Fuse Case: Radial Lead
• Initial Resistance Min: 0.04ohm
• Lead Spacing: 10.2mm
• Brand/series: MF-RX/72 Series
• Current, Rating: 3 A
• Dimensions: 0.814x0.122x1.05 "
• Mounting Type: PCB
• Primary Type: Resettable
• Resistance, Dc: 0.04 Ohms
• Termination: Radial
• Voltage, Rating: 72 VDC
• External Depth: 3.1mm
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: MF-RX300/72; MF-RX300/72

Additional Features
■
■
Packaging options:
BULK:
TAPE & REEL: MF-RX020/72-2 ~ MF-RX090/72-2 = 3000 pcs. per reel; MF-RX110/72-2 ~ MF-RX160/72-2 = 1500 pcs. per reel;
AMMO-PACK: MF-RX020/72-AP ~ MF-RX090/72-AP = 2000 pcs. per pack; MF-RX110/72-AP ~ MF-RX160/72-AP = 1000 pcs. per pack;
Style 1
MF-RX020/72
MF-RX025/72
MF-RX030/72
MF-RX040/72
MF-RX050/72
MF-RX065/72
MF-RX075/72
MF-RX090/72
MF-RX110/72
MF-RX135/72
MF-RX160/72
MF-RX185/72
MF-RX250/72
MF-RX300/72
MF-RX375/72
Product Dimensions
Resettable circuit protection
Bulk packaging, tape and reel and Ammo-Pak available on most models
A
MF-RX/72 Series - PTC Resettable Fuses
Model
C
B
D
E
500 pcs. per bag.
MF-RX185/72-2 - MF-RX375/72-2 = 1000 pcs. per reel.
MF-RX185/72-AP - MF-RX375/72-AP = 500 pcs. per pack.
(0.291)
(0.291)
(0.291)
(0.291)
(0.382)
(0.409)
(0.461)
(0.427)
(0.483)
(0.549)
(0.598)
(0.702)
(0.814)
(0.926)
(0.311
10.84
12.26
13.94
15.18
17.84
20.67
23.51
Max.
10.4
11.7
7.4
7.4
7.4
7.4
7.9
9.7
Style 2
A
A
C
(0.528)
(0.539)
(0.539)
(0.598)
(0.630)
(0.657)
(0.662)
(0.718)
(0.785)
(0.833)
(0.938)
(1.050)
(1.161)
16.70
16.84
18.26
19.94
21.18
23.84
26.67
29.51
E
Max.
B
12.7
(0.5)
12.7
(0.5)
13.4
13.7
13.7
15.2
16.0
D
B
(0.201)
(0.201)
(0.201)
(0.201)
(0.201)
(0.402)
(0.201)
(0.201)
(0.201)
(0.201)
(0.201)
(0.201)
(0.402)
(0.402)
(0.402)
Nom.
Represents total content. Layout may vary.
10.2
10.2
10.2
10.2
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
DATE CODE
(FIRST DIGIT =
LAST DIGIT OF YEAR;
NEXT THREE DIGITS =
DAY OF YEAR)
PART
IDENTIFICATION
Typical Part Marking
C
(0.028)
(0.028)
(0.028)
(0.028)
(0.028)
(0.028)
(0.028)
(0.028)
(0.028)
(0.028)
(0.028)
(0.028)
(0.028)
(0.028)
(0.028)
Tol. ±
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
RX110
4180S
(0.30)
(0.30)
(0.30)
(0.30)
(0.30)
(0.30)
(0.30)
(0.30)
(0.30)
(0.30)
(0.30)
(0.30)
(0.30)
(0.30)
(0.30)
Min.
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
D
MANUFACTURER'S
TRADEMARK
LOT NO.
(S = CHINA)
Customers should verify actual device performance in their specifi c applications.
(0.122)
(0.122)
(0.122)
(0.122)
(0.122)
(0.122)
(0.122)
(0.122)
(0.122)
(0.122)
(0.122)
(0.122)
(0.122)
(0.122)
(0.122)
Max.
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
E
Multifuse
Product Designator
Series
Hold Current, Ihold
Maximum Voltage, Vmax
Packaging Options
*Packaged per EIA 486-B
- AP = Ammo-Pak*
RX = Radial Leaded Component
020-375 (0.20 Amps - 3.75 Amps)
72 (72 Volts)
How to Order
Style
- 0 = Bulk Packaging
- 2 = Tape and Reel*
Specifi cations are subject to change without notice.
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
Physical Characteristics
®
Lead Dia.
(0.020)
(0.020)
(0.020)
(0.020)
(0.020)
(0.020)
(0.020)
(0.020)
(0.032)
(0.032)
(0.032)
(0.032)
(0.032)
(0.032)
(0.032)
1 0.51
0.51
0.51
0.51
0.51
0.51
0.51
0.51
0.81
0.81
0.81
0.81
0.81
0.81
0.81
MF - RX 110/72 - 2
DIMENSIONS:
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/CuFe
Material
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
MM
(INCHES)