MF-R250-2 Bourns Inc., MF-R250-2 Datasheet - Page 4

• Manufacturer Part Number: MF-R250-2
• Description: FUSE PTC RESET
• Manufacturer: Bourns Inc.
• Series: MF-Rr
• Type: PTC Resettable Fusesr

Specifications of MF-R250-2

• Voltage - Max: 30V
• Current - Max: 40A
• Current - Hold (ih) (max): 2.5A
• Current - Trip (it): 5A
• R Min/max: 0.025 ~ 0.048 Ohm
• Time To Trip: 10.3s
• Package / Case: Radial
• Hold Current: 2.5 Amps
• Trip Current: 5 Amps
• Current Rating (max): 40 Amps
• Resistance: 0.048 Ohms
• Maximum Voltage: 30 VoltsDC
• Termination Style: Radial
• Mounting Style: Through Hole
• Current Rating: 40 Amps
• Dimensions: 12 mm L x 3 mm W x 18.3 mm H x 12 mm D
• Lead Spacing: 5.1 mm
• Operating Temperature Range: - 40 C to + 85 C
• Initial Resistance (min): 25mOhm
• Initial Resistance (max): 48mOhm
• Voltage Rating Max: 30V
• Trip Time (max): 10.3@12.5As
• Power Dissipation (typ): 1.2W
• Post Trip Resistance (max): 70mOhm
• Wire Form: Straight
• Agency Approvals: CSA/TUV/UL
• Operating Temperature Min Deg. C: -40C
• Operating Temperature Max Deg. C: 85C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Typical Time to Trip at 23 ºC
MF-R Series - PTC Resettable Fuses
0.001
0.01
0.001
100
0.1
0.01
10
100
0.1
1
10
1
1
0.1
Fault Current (Amps)
Fault Current (Amps)
1
10
10
100
100
Customers should verify actual device performance in their specifi c applications.
Represents total content. Layout may vary.
MANUFACTURER'S
TRADEMARK
Represents total content. Layout may vary.
PART
IDENTIFICATION
Multifuse
Product Designator
Series
Hold Current, I hold
Packaging Options
Part Number Suffi x Option
*Packaged per EIA486-B
DATE CODE
(FIRST DIGIT =
LAST DIGIT OF YEAR;
NEXT THREE DIGITS =
DAY OF YEAR)
PART
IDENTIFICATION
R = Radial Leaded Component
005-1100 (0.05 Amps - 11.0 Amps)
- __ =
- 0-99 = Bulk Packaging with part
- 2 =
- 2-99 = Tape and Reel with part number
- AP =
- 0-14 = Kinked leads where straight
- 0-17 = Straight leads where kinked
- 99 =
Typical Part Marking: MF-R005 - R025
Typical Part Marking: MF-R030 - R1100
How to Order
Specifi cations are subject to change without notice.
®
Bulk Packaging without part
number suffi x option
number suffi x option
Tape and Reel without part
number suffi x option*
suffi x option
Ammo-Pak*
leads are standard
leads are standard
As of date code April 1, 2005 all
MF-R models are RoHS
compliant. The suffi x “-99”
can be used if a new part
number is required to reference
the RoHS compliance.
Examples:
MF-R110 .................Bulk packaging
MF-R110-0-99.........Bulk packaging
MF-R110-2 ..............Tape and reel
MF-R110-2-99.........Tape and reel
MF-R090-0-9-99 .....Bulk packaging
MF-R250-0-10-99 ...Bulk packaging
MF-R SERIES, REV. X, 04/10
025
0180T
R250
0A
MF - R 110 - 0 - 99
DATE CODE:
WEEK 1 OF 2000 = 0A
(YEAR & WEEK)
WEEK 27 OF 2000 = A0
(WEEK & YEAR)
with part number
suffi x option
packaging
packaging with
part number
suffi x option
with part number
suffi x option
with part number
suffi x option
MANUFACTURER'S
TRADEMARK
LOT NO.
(T = TAIWAN
S = CHINA)