RXEF185 TE Connectivity, RXEF185 Datasheet - Page 15

• Manufacturer Part Number: RXEF185
• Description: FUSE, PTC RESET, 72V, 1.85A, RADIAL
• Manufacturer: TE Connectivity
• Series: RXEFr

Specifications of RXEF185

• Holding Current: 1.85A
• Tripping Current: 3.7A
• Initial Resistance Max: 0.12ohm
• Operating Voltage: 72V
• Ptc Fuse Case: Radial Leaded
• Initial Resistance Min: 0.08ohm
• Resistance R1: 0.19ohm
• Rohs Compliant: Yes
• Hold Current: 1.85A
• Trip Current: 3.7A
• Initial Resistance (min): 80mOhm
• Initial Resistance (max): 120mOhm
• Voltage Rating Max: 72V
• Trip Time (max): 12.6@9.25As
• Power Dissipation (typ): 2.1W
• Post Trip Resistance (max): 190mOhm
• Wire Form: Straight
• Agency Approvals: CSA/TUV/UL
• Operating Temperature Min Deg. C: -40C
• Operating Temperature Max Deg. C: 85C
• Brand/series: PolySwitch®/RXEF Series
• Current, Rating: 1.85 A
• Dimensions: 0.69x0.12x0.88 "
• Material, Body: Epoxy Polymer
• Mounting Type: PCB
• Primary Type: Resettable
• Resistance, Dc: 0.12 Ohms
• Termination: Radial
• Voltage, Rating: 72 VDC
• Agency Recognition: UL, CSA, TUV
• Ul File Number: E74889
• Csa File Number: A78165
• Vmax (v): 72
• Imax (a): 40
• Ih (room Temperature) (a): 1.85
• It (room Temperature) (a): 3.70
• Rmin (?): 0.08
• Rmax (?): 0.120
• R1 Max [post Trip] (?): 0.19
• Power Dissipation (typical) (w): 2.10
• Construction: Radial
• Lead Type: Straight
• Family Name: RXEF
• 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: Bulk
• Lead Free Status / Rohs Status: Compliant

Figures R17-R23 - Typical Time-to-trip curves at 20°C for Radial-leaded Devices
RGEF (data at 25°C)
A = RGEF250
B = RGEF300
C = RGEF400
D = RGEF500
E = RGEF600
F = RGEF700
G = RGEF800
RHEF (data at 25°C)
A = RHEF050
B = RHEF070
C = RHEF100
D = RHEF200
E = RHEF300
F = RHEF400
G = RHEF450
H = RHEF550
I = RHEF600
J = RHEF650
RUSBF
A = RUSBF075
B = RUSBF090
C = RUSBF110
D = RUSBF120
E = RUSBF135
H = RGEF900
I = RGEF1000
J = RGEF1100
K = RGEF1200
L = RGEF1400
K = RHEF700
L = RHEF750
M = RHEF800
N = RHEF900
O = RHEF1000
P = RHEF1100
Q = RHEF1300
R = RHEF1400
S = RHEF1500
F = RUSBF155
G = RUSBF160
H = RUSBF185
I = RUSBF250
Figure R21
Figure R22
Figure R23
1000
1000
0.01
.001
.001
100
100
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0.1
.01
0.1
.01
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.1
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C
B
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D
C D E F G H I
E
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F G H I JKLM NO P QR S
B
C D E FG
Fault current (A)
Fault current (A)
Fault current (A)
10
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H
A
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J
K L
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Cont'd
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