B1250T Bourns Inc., B1250T Datasheet - Page 2

• Manufacturer Part Number: B1250T
• Description: FUSE TELECOM 1.25A 600V SMD
• Manufacturer: Bourns Inc.
• Series: Telefuse™r
• Type: Slow Blow Surface Mount Fuser

Specifications of B1250T

• Fuse Type: Power Cross/Barrier Network
• Voltage - Rated: 600VAC
• Current: 1.25A
• Package / Case: Non-Standard SMD
• Size / Dimension: 0.380" L x 0.120" W x 0.120" H (9.65mm x 3.05mm x 3.05mm)
• Mounting Type: Holder/Surface Mount
• Operating Temperature: -55°C ~ 125°C
• Dc Cold Resistance: 0.075 Ohm
• Melting I²t: 14
• Current Rating: 1.25 Amps
• Voltage Rating: 600 Volts
• Fuse Size / Group: 3812
• Termination Style: SMD/SMT
• Body Material: Ceramic
• Dimensions: 9.65 mm L x 3.05 mm W
• Product: Telecommunications Power Fuse
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 55 C to + 125 C
• Resistance: 0.075 Ohms
• Voltage Rating (vac): 600V
• Power Dissipation: 400mW
• Operating Temp Range: -55C to 125C
• Package Type: CSMD
• Mounting: Surface Mount
• Housing Material: Ceramic
• Operating Temperature Classification: Military
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Color: -
• Lead Free Status / Rohs Status: Compliant
• Other names: B1250TTR

Time/Current Characteristic Curve
Solder Profile - 260 °C for 3 Seconds
Telefuse
1000
0.01
100
0.1
10
1
0.01
™
SMD Power Cross Protection Fuse
0.1
300
267
233
200
167
133
100
67
33
0
0
1
PREHEAT
48
Time (Seconds)
10
95
100
143
ZONE 2
190
1000
SECONDS
ZONE 3
238
10000
B2000T
B1250T
B0500T
286
Customers should verify actual device performance in their specific applications.
REFLOW
333
381
COOL
Product Dimensions
Recommended Pad Layout
Specifications are subject to change without notice.
429
(.16)
4.06
9.65 ± .254
(.38 ± .01)
(.120 ± .005)
3.05 ± .127
DIMENSIONS:
(.15)
3.81
(.120 ± .005)
3.05 ± .127
(.20)
5.08
(INCHES)
(.080 ± .004)
2.03 ± .102
MM