RUEF400-2 TE Connectivity, RUEF400-2 Datasheet - Page 27

• Manufacturer Part Number: RUEF400-2
• Description: FUSE, PTC RESET, 30V, 4A, RADIAL
• Manufacturer: TE Connectivity
• Series: RUEFr

Specifications of RUEF400-2

• Holding Current: 4A
• Tripping Current: 8A
• Initial Resistance Max: 0.03ohm
• Operating Voltage: 30V
• Ptc Fuse Case: Radial Leaded
• Initial Resistance Min: 0.01ohm
• Resistance R1: 0.05ohm
• Rohs Compliant: Yes
• Hold Current: 4A
• Trip Current: 8A
• Initial Resistance (min): 10mOhm
• Initial Resistance (max): 30mOhm
• Voltage Rating Max: 30V
• Trip Time (max): 12.7@20As
• Power Dissipation (typ): 2.5W
• Post Trip Resistance (max): 50mOhm
• Wire Form: Straight
• Agency Approvals: CSA/TUV/UL
• Operating Temperature Min Deg. C: -40C
• Operating Temperature Max Deg. C: 85C
• Ul File Number: E74889
• Csa File Number: A78165
• Vmax (v): 30
• Imax (a): 100
• Ih (room Temperature) (a): 4
• It (room Temperature) (a): 8.00
• Rmin (?): 0.01
• Rmax (?): 0.030
• R1 Max [post Trip] (?): 0.05
• Power Dissipation (typical) (w): 2.50
• Construction: Radial
• Lead Type: Straight
• Family Name: RUEF
• Coating: Coated
• Rohs/elv Compliance: RoHS compliant, ELV compliant
• Lead Free Solder Processes: Wave solder capable to 240°C, Wave solder capable to 260°C, Wave solder capable to 265°C
• Rohs/elv Compliance History: Always was RoHS compliant
• Tuv Certificate No.: Available on request (per IEC 60730-1)
• Operating Temperature (max.) (°c): 85
• Application: Radial
• Packaging Method: Tape & Reel
• Lead Free Status / Rohs Status: Compliant

WARNING:
Operation beyond the maximum ratings or improper use may result in device damage and possible electrical arcing and flame.
The devices are intended for protection against occasional overcurrent or overtemperature fault conditions and should not be
used when repeated fault conditions or prolonged trip events are anticipated.
Contamination of the PPTC material with certain silicon based oils or some aggressive solvents can adversely impact the
performance of the devices.
Device performance can be impacted negatively if devices are handled in a manner inconsistent with recommended electronic,
thermal, and mechanical procedures for electronic components.
Operation in circuit with a large inductance can generate a circuit voltage (L
/
) above the rated voltage of the
di
dt
PolySwitch resettable device.
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