PolySwitch(R) Resettable PPTCs Radial Leaded > RHEF Series RHEF Series RoHS Description Littelfuse PolySwitch radial-leaded devices represent the most comprehensive and complete set of PPTC products available in the industry today. RHEF series offers flatter thermal derating and operating temperatures up to 125C. Features * Resettable and single-use overcurrent devices * Wide range of form factor and termination methods * Devices compatible with high-volume electronics assembly * RoHS compliant, Lead-Free and Halogen-Free Agency Approvals AGENCY AGENCY FILE NUMBER Applications E74889 78165 72161789 * Satellite video receivers * CD-ROMs * Industrial controls * Game machines * Transformers * Battery packs * Computer motherboards * Phones * Modems * Fax machines * USB hubs, ports and peripherals * Analog and digital line cards * Printers * IEEE 1394 ports Additional Information Datasheet Samples Resources Electrical Characteristics Part Number IH IT (A) (A) VMAX (VDC) IMAX (VAC RMS) (DCADC) PD Typ (ACARMS) (W) Max Time-to-trip (A) (s) RMIN RMAX R1MAX () () () Lead Size (mm2/AWG) RHEF* - 30V - High Temperature RHEF050 0.5 0.9 30 -- 40 -- 0.9 2.5 2.5 0.480 0.780 1.10 0.205/24 RHEF070 0.7 1.4 30 -- 40 -- 1.4 3.5 3.2 0.300 0.540 0.80 0.205/24 RHEF100 1.0 1.8 30 -- 40 -- 1.4 5.0 5.2 0.180 0.300 0.43 0.205/24 Notes: IH :Hold current: maximum current device will pass without interruption in 20C still air. RMIN :Minimum resistance of device as supplied at 20C unless otherwise specified. I T :Trip current: minimum current that will switch the device from low resistance to high resistance in 20C still air. RMAX :Maximum resistance of device as supplied at 20C unless otherwise specified. VMAX :Maximum continuous voltage device can withstand without damage at rated current. IMAX :Maximum fault current device can withstand without damage at rated voltage. PD :Power dissipated from device when in the tripped state in 20C still air. R1MAX: Maximum resistance of device when measured one hour post reflow (surface-mount device) or one hour post trip (radial-leaded device) at 20C unless otherwise specified. * Electrical characteristics determined at 25C. (c) 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/22/18 PolySwitch(R) Resettable PTCs Radial Leaded > RHEF Series Electrical Characteristics Part Number IH IT (A) (A) (Cont'd) VMAX (VDC) IMAX PD Typ (VAC RMS) (DCADC) (ACARMS) Max Time-to-trip (W) (A) (s) RMIN RMAX R1MAX () () () Lead Size (mm2/AWG) RHEF* - 16V - High Temperature RHEF200 2.0 3.8 16 -- 100 -- 1.4 10.0 4.3 0.0450 0.07400 0.1100 0.205/24 RHEF300 3.0 6.0 16 -- 100 -- 3.0 15.0 5.0 0.0330 0.05300 0.0790 0.520/20 RHEF400 4.0 7.5 16 -- 100 -- 3.3 20.0 5.0 0.0240 0.04000 0.0600 0.520/20 RHEF450 4.5 7.8 16 -- 100 -- 3.6 22.5 3.0 0.0220 0.03600 0.0540 0.520/20 RHEF550 5.5 10.0 16 -- 100 -- 3.5 27.5 6.0 0.0150 0.02500 0.0370 0.520/20 RHEF600 6.0 10.8 16 -- 100 -- 4.1 30.0 5.0 0.0130 0.02150 0.0320 0.520/20 RHEF650 6.5 12.0 16 -- 100 -- 4.1 32.5 5.5 0.0110 0.01750 0.0260 0.520/20 RHEF700 7.0 13.0 16 -- 100 -- 4.0 35.0 7.0 0.0100 0.01640 0.0250 0.520/20 RHEF750 7.5 13.1 16 -- 100 -- 4.5 37.5 7.0 0.0094 0.01530 0.0220 0.520/20 RHEF800 8.0 15.0 16 -- 100 -- 4.2 40.0 8.0 0.0080 0.01350 0.0200 0.520/20 RHEF900 9.0 16.5 16 -- 100 -- 5.0 45.0 10.0 0.0074 0.01200 0.0170 0.520/20 RHEF1000 10.0 18.5 16 -- 100 -- 5.3 50.0 9.0 0.0062 0.01050 0.0150 0.520/20 RHEF1100 11.0 20.0 16 -- 100 -- 5.5 55.0 11.0 0.0055 0.00900 0.0130 0.520/20 RHEF1300 13.0 24.0 16 -- 100 -- 6.9 65.0 13.0 0.0041 0.00690 0.0100 0.823/18 RHEF1400 14.0 27.0 16 -- 100 -- 6.9 70.0 13.0 0.0030 0.00600 0.0090 0.823/18 RHEF1500 15.0 28.0 16 -- 100 -- 7.0 75.0 20.0 0.0032 0.00613 0.0092 0.823/18 Notes: IH :Hold current: maximum current device will pass without interruption in 20C still air. RMIN :Minimum resistance of device as supplied at 20C unless otherwise specified. I T :Trip current: minimum current that will switch the device from low resistance to high resistance in 20C still air. RMAX :Maximum resistance of device as supplied at 20C unless otherwise specified. VMAX :Maximum continuous voltage device can withstand without damage at rated current. IMAX :Maximum fault current device can withstand without damage at rated voltage. PD R1MAX: Maximum resistance of device when measured one hour post reflow (surface-mount device) or one hour post trip (radial-leaded device) at 20C unless otherwise specified. * Electrical characteristics determined at 25C. :Power dissipated from device when in the tripped state in 20C still air. Typical Time-to-Trip Curves at 20C 1000 C K= RHEF700 L= RHEF750 M= RHEF800 N= RHEF900 O= RHEF1000 P= RHEF1100 Q= RHEF1300 R= RHEF1400 S= RHEF1500 D E F G H I JKLMNO P QRS 100 B Time-to-Trip (s) RHEF (data at 25C) A= RHEF050 B= RHEF070 C= RHEF100 D= RHEF200 E= RHEF300 F= RHEF400 G= RHEF450 H= RHEF550 I=RHEF600 J= RHEF650 A 10 S R PQ O N M L K J I H 1 0.1 0.01 1 10 A Fault Current (A) (c) 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/22/18 B C D G F E 100 PolySwitch(R) Resettable PPTCs Radial Leaded > RHEF Series Temperature Rerating Maximum Ambient Temperature -40C -20C 0C 20C 25C 40C 50C 60C 70C 85C 125C Hold Current (A) RHEF - 30V - High Temperature RHEF050 0.68 0.62 0.56 0.51 0.50 0.44 0.40 0.36 0.34 0.28 0.12 RHEF070 0.95 0.87 0.79 0.72 0.70 0.62 0.56 0.51 0.47 0.39 0.17 RHEF100 1.36 1.24 1.13 1.03 1.00 0.89 0.80 0.73 0.67 0.56 0.24 1.11 0.49 RHEF - 16V - High Temperature RHEF200 2.71 2.49 2.26 2.06 2.00 1.77 1.60 1.46 1.34 RHEF300 RHEF400 4.07 3.74 3.41 3.09 3.00 2.65 2.40 2.21 2.00 1.66 0.74 5.57 5.11 4.65 4.22 4.00 3.62 3.29 3.01 2.73 2.27 1.01 RHEF450 6.10 5.60 5.10 4.60 4.50 4.00 3.60 3.30 3.00 2.50 1.10 RHEF550 7.47 6.86 6.24 5.66 5.50 4.85 4.41 4.04 3.66 3.05 1.36 RHEF600 8.20 7.50 6.80 6.20 6.00 5.30 4.90 4.40 4.00 3.30 1.50 RHEF650 8.80 8.10 7.40 6.70 6.50 5.70 5.30 4.80 4.30 3.60 1.60 RHEF700 9.51 8.73 7.95 7.20 7.00 6.17 5.61 5.15 4.66 3.88 1.73 RHEF750 10.20 9.40 8.60 7.70 7.50 6.60 6.10 5.60 5.00 4.10 1.90 RHEF800 10.87 9.98 9.08 8.23 8.00 7.06 6.41 5.88 5.33 4.43 1.97 RHEF900 12.21 11.19 10.16 9.26 9.00 7.97 7.20 6.56 6.04 5.01 2.19 RHEF1000 13.60 12.50 11.40 10.30 10.00 8.80 8.10 7.40 6.60 5.50 2.50 RHEF1100 14.94 13.72 12.49 11.31 11.00 9.70 8.82 8.09 7.32 6.09 2.71 RHEF1300 17.70 16.30 14.80 13.40 13.00 11.40 10.50 9.60 8.60 7.20 3.30 RHEF1400 19.01 17.46 15.89 14.40 14.00 12.35 11.22 10.29 9.32 7.76 3.45 RHEF1500 20.40 18.80 17.10 15.50 15.00 13.20 12.10 11.10 9.90 8.30 3.80 Temperature Rerating Curve % of Rated Hold and Trip Current 200 150 100 50 0 -40 -20 0 20 40 60 80 100 120 Ambient Temperature (C) (c) 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/22/18 PolySwitch(R) Resettable PTCs Radial Leaded > RHEF Series Physical Specifications RHEF050 to RHEF200 : Tin-plated Copper-clad Steel, 0.205mm2 (24AWG), o0.51mm/0.020in Lead Material RHEF300 to RHEF1100 : Tin-plated Copper, 0.52mm2 (20AWG), o0.81mm/0.032in RHEF1300 to RHEF1500 : Tin-plated Copper, 0.82mm2 (18AWG), o1.0mm/0.04in Soldering Characteristics Solderability per ANSI/J-STD-002 Category 3 Solder Heat Withstand per IEC 68-2-20, Test Tb, Method 1a, Condition b; Can Wthstand 10s at 260C 5C Insulating Material Cured, Flame-retardant Epoxy Polymer; Meets UL 94V-0 Operation Temperature -40C~125C Note: Devices are not designed to be placed through a reflow process. Environmental Specifications Test Conditions Resistance Change 70C, 1000 hrs 5% 85C, 1000 hrs 5% Humidity Aging 85C, 85% R.H., 1000 hrs 5% Thermal Shock 125C, -40C (10 Times) 5% Solvent Resistance MIL-STD-202, Method 215F No change Moisture Resistance Level Level 1, J-STD-020 Storage Conditions 40C max, 70% RH max; devices should remain in original sealed bags prior to use. Devices may not meet specified values if these storage conditions are exceeded. Passive Aging (c) 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/22/18 E A E A A E A C B B D D E A C (R) CL CL PolySwitch Resettable PPTCs B B to B CL to CL B E F CL CL B E D CL B Radial Leaded > RHEF Series D C F to CL CL CL CL CL E F CL B CL C F to CL CL CL CL CL to C L C CL to CL C D E A D D C CLBto CL F CL CL D A D C F CL to CLCL CL C F CL CL CL to CL F CL CL B C F CL to CL CL CL A E CL Dimension Figures E A A E E A E A DA E A C B B D E J F CL CL B CL to CL B B B E C F CL CL J CL to CL B E B CL Figure 4 D F CL CL CL D D D C CL to CL C CL to CL F CL CL D D C F CL to CLCL CL Figure 1 F C CL to CL CL CL J C CL to CL F CL CL Figure 2 D F C CL to CL CL CL J A E B J Part Number C CL to CL RHEF050 F CL CL -- E RHEF070 -- A B RHEF100 H C-- 7.4 (0.29) -- 6.9 (0.27) 9.7 (0.38) E C Max Min D Max 4.3 (0.17) 5.8 (0.23) -- 10.8 (0.43) 4.3 (0.17) 5.8 (0.23) -- 13.6 (0.54) 4.3 (0.17) 5.8 (0.23) A A B H -- CL D Min CRHEF CL to CL 12.7 (0.50) A E A B E E E Max F H J Typ Typ Typ 1.2 (0.05) -- -- D(0.12) C Max BC CL to L Min D H D C Figure CL to CL Device Mass (g) (Only for Reference) C CL to CL - 30V - FHigh Temperature 7.6 (0.30) E 7.6 (0.30) CL CL -- -- E 1,4,5 0.177 -- C -- CL to CL 3.0 (0.12) 1.2 (0.05) 1.24 (0.049) 1.2 (0.05) 2,4,5 0.259 -- -- 3.0 (0.12) -- -- -- 1,4,5 0.312 B 7.6 (0.30) 3.0 RHEF - 16V - High Temperature D RHEF200 Figure 5 F CL CL C B J Dimensions in MillimetersA(Inches) Min E C CL to CL H B B B Max A E C E A D Min J E E A Dimensions and Weights C F CL CL Figure 3 A A D A 9.4 (0.37) -- 14.4 (0.57) 4.3 C (0.17) CL to CL D 5.8 (0.23) C CL to CL D 7.6 (0.30) -- -- 3.1 (0.12) -- -- -- 1,4,5 0.278 RHEF300 -- 8.8 (0.35) -- 13.8 4.3 (0.55) (0.17) 5.8 (0.23) 7.6 (0.30) -- -- 3.0 (0.12) 1.2 (0.05) -- -- 3,4,5 0.433 RHEF400 -- 10.0 (0.39) -- 15.0 (0.59) 4.3 (0.17) 5.8 (0.23) 7.6 (0.30) -- -- 3.0 (0.12) 1.2 (0.05) 1.24 (0.049) 1.6 (0.06) 3,4,5 0.509 RHEF450 -- 10.4 (0.41) -- 15.6 (0.61) 4.3 (0.17) 5.8 (0.23) 7.6 (0.30) -- -- 3.0 (0.12) 1.2 (0.05) 1.24 (0.049) 1.6 (0.06) 3,4,5 0.605 RHEF550 -- 11.2 (0.44) -- 18.9 4.3 (0.74) (0.17) 5.8 (0.23) 7.6 (0.30) -- -- 3.0 (0.12) 1.2 (0.05) -- -- 3,4,5 0.704 RHEF600 -- 11.2 (0.44) -- 21.0 (0.83) 4.3 (0.17) 5.8 (0.23) 7.6 (0.30) -- -- 3.0 (0.12) 1.2 (0.05) 1.24 1.7 (0.049) (0.067) 3,4,5 0.792 RHEF650 -- 12.7 (0.50) -- 22.2 (0.88) 4.3 (0.17) 5.8 (0.23) 7.6 (0.30) -- -- 3.0 (0.12) 1.2 (0.05) 1.24 (0.049) 1.8 (0.07) 3,4,5 0.952 RHEF700 -- 14.0 (0.55) -- 21.9 (0.86) 4.3 (0.17) 5.8 (0.23) 7.6 (0.30) -- -- 3.0 (0.12) 1.2 (0.05) -- -- 3,4,5 0.850 (c) 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/22/18 D CL A E B A E D C F to CL CL CL CL B C F to CL CL CL CL CL to C L C CL to CL F CL BCL A D E D D C CL to CL A C B Radial Leaded > RHEF Series D A E (R) PolySwitch Resettable PTCs B B D C CL to CL A E A C CL to CL B B D A D C CLBto CL F CL CL E C F CL to CLCL CL C B E D F CL CL CL to CL F CL CL E F CL CL C CL to CL B F CL Dimension Figures A E A A E A E A E DA E A C B B D E J F CL CL B CL to CL B B B E A C E F CL CL J CL to CL B B Figure 4 D C CL to CL D D F CL CL D C CL to CL C CL to CL F CL CL D D C F CL to CLCL CL Figure 1 F C CL to CL CL CL J C CL to CL F CL CL Figure 2 D F C CL to CL CL CL J A E Dimensions and Weights B J Part Number C CL to CL RHEF750 A F CL CL -- E RHEF800 A B J -- C CL to CL 14.0 (0.55) -- 16.5 (0.65) C Min D Max C RHEF CL to CL 23.5 (0.93) 4.3 (0.17) 5.8 (0.23) -- 22.5 (0.88) 4.3 (0.17) 5.8 (0.23) -- 25.7 (1.01) 4.3 (0.17) 5.8 (0.23) -- 26.5 (1.04) 9.4 (0.37) A D Min A E E E Max C Figure H J Typ Typ Typ D(0.12) 1.2 (0.05) 1.24 (0.049) 2.0 (0.08) 3,4,5 1.054 C Max BC CL to L Min CL CL -- E Device Mass (g) (Only for Reference) F CL to CL C CL to CL 3.0 -- C -- CL to CL 3.0 (0.12) 1.2 (0.05) -- -- 3,4,5 1.073 7.6 (0.30) -- -- 3.0 (0.12) 1.2 (0.05) -- -- 3,4,5 1.516 10.9 D (0.43) 7.6 D (0.30) -- -- 3.0 (0.12) 1.2 (0.05) 1.24 (0.049) 1.5 (0.06) 3,4,5 1.791 B 7.6 (0.30) B C-- 16.5 (0.65) RHEF1000 -- 17.5 (0.69) RHEF1100 -- 21.0 (0.83) -- 26.1 (1.03) C 9.4 CL to CL (0.37) 10.9 C (0.43) CL to CL 7.6 (0.30) -- -- 3.0 (0.12) 1.2 (0.05) -- -- 3,4,5 1.570 RHEF1300 -- 23.5 (0.925) -- 28.7 (1.13) 9.4 (0.37) 10.9 (0.43) 7.6 (0.30) -- -- 3.6 (0.14) 1.4 (0.06) 1.45 (0.057) 1.9 (0.084) 3,4,5 2.257 RHEF1400 -- 23.5 (0.925) -- 28.6 (1.13) 9.4 (0.37) 10.9 (0.43) 7.6 (0.30) -- -- 3.6 (0.14) 1.4 (0.06) -- -- 3,4,5 2.051 RHEF1500 -- 23.5 (0.925) -- 28.7 (1.13) 9.4 (0.37) 10.9 (0.43) 7.6 (0.30) -- -- 3.6 (0.14) 1.4 (0.06) 1.45 (0.057) 1.9 (0.084) 3,4,5 2.257 H (c) 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/22/18 E B D H D E -- A (Cont'd) - 16V - FHigh Temperature 7.6 (0.30) F CL C A RHEF900 E D B J Dimensions in MillimetersA(Inches) Max Figure 5 C H Min E C CL to CL H B B B Max A E C E A D Min J E E A J C F CL CL Figure 3 A A D A D PolySwitch(R) Resettable PPTCs Radial Leaded > RHEF Series Packaging and Marking Information Part Number Bag Quantity Tape and Reel Quantity Ammo Pack Quantity Standard Package Quantity Part Marking Agency Recognition RHEF - 30V - High Temperature RHEF050 RHEF050-2 RHEF070 RHEF070-2 RHEF100 RHEF100-2 500 -- -- 10,000 H0.5 UL, CSA, TUV -- 2,500 -- 12,500 H0.5 UL, CSA, TUV 500 -- -- 10,000 H0.7 UL, CSA, TUV -- 2,500 -- 12,500 H0.7 UL, CSA, TUV 500 -- -- 10,000 H1 UL, CSA, TUV -- 2,500 -- 12,500 H1 UL, CSA, TUV RHEF - 16V - High Temperature 500 -- -- 10,000 H2 UL, CSA, TUV RHEF200-2 RHEF200 -- 2,500 -- 12,500 H2 UL, CSA, TUV RHEF200-AP -- -- 2,500 12,500 H2 UL, CSA, TUV RHEF300 RHEF300-2 RHEF300-AP 500 -- -- 10,000 H3 UL, CSA, TUV -- 2,000 -- 10,000 H3 UL, CSA, TUV -- -- 2,000 10,000 H3 UL, CSA, TUV 500 -- -- 10,000 H4 UL, CSA, TUV RHEF400-2 -- 1,500 -- 7,500 H4 UL, CSA, TUV RHEF400-AP -- -- 1,500 7,500 H4 UL, CSA, TUV 500 -- -- 10,000 H4.5 UL, CSA, TUV RHEF450-2 -- 1,500 -- 7,500 H4.5 UL, CSA, TUV RHEF450-AP -- -- 1,500 7,500 H4.5 UL, CSA, TUV RHEF400 RHEF450 500 -- -- 10,000 H5.5 UL, CSA, TUV RHEF550-2 RHEF550 -- 2,000 -- 10,000 H5.5 UL, CSA, TUV RHEF550-AP -- -- 2,000 10,000 H5.5 UL, CSA, TUV RHEF600 RHEF600-2 RHEF600-AP 500 -- -- 10,000 H6 UL, CSA, TUV -- 2,000 -- 10,000 H6 UL, CSA, TUV -- -- 2,000 10,000 H6 UL, CSA, TUV 500 -- -- 10,000 H6.5 UL, CSA, TUV RHEF650-2 -- 1,500 -- 7,500 H6.5 UL, CSA, TUV RHEF650-AP -- -- 1,500 7,500 H6.5 UL, CSA, TUV 500 -- -- 10,000 H7 UL, CSA, TUV RHEF700-2 -- 1,500 -- 7,500 H7 UL, CSA, TUV RHEF700-AP -- -- 1,500 7,500 H7 UL, CSA, TUV RHEF650 RHEF700 RHEF750 RHEF750-2 RHEF750-AP 500 -- -- 10,000 H7.5 UL, CSA, TUV -- 1,000 -- 5,000 H7.5 UL, CSA, TUV -- -- 1,000 5,000 H7.5 UL, CSA, TUV 500 -- -- 10,000 H8 UL, CSA, TUV RHEF800-2 -- 1,000 -- 5,000 H8 UL, CSA, TUV RHEF800-AP -- -- 1,000 5,000 H8 UL, CSA, TUV RHEF800 (c) 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/22/18 PolySwitch(R) Resettable PTCs Radial Leaded > RHEF Series Packaging and Marking Information Part Number Bag Quantity (Cont'd) Tape and Reel Quantity Ammo Pack Quantity Standard Package Quantity Part Marking Agency Recognition RHEF - 16V - High Temperature RHEF900 250 -- -- 5,000 H9 UL, CSA, TUV RHEF900-2 -- 1,000 -- 5,000 H9 UL, CSA, TUV RHEF900-AP -- -- 1,000 5,000 H9 UL, CSA, TUV 250 -- -- 5,000 H10 UL, CSA, TUV -- 1,000 -- 5,000 H10 UL, CSA, TUV RHEF1000 RHEF1000-2 RHEF1000-AP -- -- 1,000 5,000 H10 UL, CSA, TUV 250 -- -- 5,000 H11 UL, CSA, TUV RHEF1100-2 -- 1,000 -- 5,000 H11 UL, CSA, TUV RHEF1100-AP -- -- 1,000 5,000 H11 UL, CSA, TUV 250 -- -- 5,000 H13 UL, CSA, TUV RHEF1300-2 -- 1,000 -- 5,000 H13 UL, CSA, TUV RHEF1300-AP -- -- 1,000 5,000 H13 UL, CSA, TUV 250 -- -- 5,000 H14 UL, CSA, TUV -- 1,000 -- 5,000 H14 UL, CSA, TUV RHEF1100 RHEF1300 RHEF1400 RHEF1400-2 RHEF1400-AP -- -- 1,000 5,000 H14 UL, CSA, TUV 250 -- -- 5,000 H15 UL, CSA, TUV RHEF1500-2 -- 1,000 -- 5,000 H15 UL, CSA, TUV RHEF1500-AP -- -- 1,000 5,000 H15 UL, CSA, TUV RHEF1500 Part Ordering Number System RHEF 250 U 2 Packaging Blank = Packaged in Bags -1 = 25.4mm (1.0 in) Minimum Lead Length -2 = Tape and Reel -AP = Ammo Pack -X.X = Special Lead Cut Length (in) Modifier K = Standard Kinked Lead B = Special Kinked Lead S = Straight Lead U = Uncoated Device Hold Current Indicator Product Series An "F" at the end of product series indicates Pb-free version of product. Note: Kinked parts are recommended to control the height of the part on the PCB in non-auto PCB applications. (c) 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/22/18 PolySwitch(R) Resettable PPTCs Radial Leaded > RHEF Series Tape and Reel Specifications RHEF devices are available in tape and reel packaging per EIA468-B/IEC60286-2 standards. See Figures 1 and 2 for details. Description EIA Mark Dimension (mm) Tolerance Carrier Tape Width W 18 -0.5/+1.0 Hold-Down Tape Width W4 11 Minimum Top Distance between Tape Edges W6 3 Maximum Sprocket Hole Position W5 9 -0.5/+0.75 Sprocket Hole Diameter D0 4 0.2 Abscissa to Plane (Straight Lead) H 18.5 2.5 Abscissa to Plane (Kinked Lead) (RHEF050 to RHEF1500) H0 16.0 0.5 Abscissa to Top (RHEF050 to RHEF450) H1 32.2 Maximum Abscissa to Top* (RHEF550 to RHEF1500) H1 45.0 Maximum Overall Width with Lead Protrusion (RHEF050 to RHEF450) C1 43.2 Maximum Overall Width with Lead Protrusion (RHEF550 to RHEF1500) C1 55 Maximum Overall Width without Lead Protrusion (RHEF050 to RHEF450) C2 42.5 Maximum Overall Width without Lead Protrusion (RHEF550 to RHEF1500) C2 54 Maximum Lead Protrusion L1 1.0 Maximum Protrusion of Cut-out L 11 Maximum Protrusion beyond Hold-down Tape I2 Not Specified -- Sprocket Hole Pitch P0 12.7 0.3 Device Pitch (RHEF050 to RHEF600) -- 25.4 0.61 Device Pitch (RHEF650 to RHEF1500) -- 25.4 0.6 Pitch Tolerance -- 20 Consecutive 1 Tape Thickness T 0.9 Maximum Overall Tape and Lead Thickness* (RHEF050 to RHEF1100) T1 2.0 Maximum Overall Tape and Lead Thickness* (RHEF1300 to RHEF1500) T1 2.3 Maximum Splice Sprocket Hole Alignment -- 0 0.3 Body Lateral Deviation h 0 1.0 Body Tape Plane Deviation p 0 1.3 0.7 Ordinate to Adjacent Component Lead (RHEF050 to RHEF900) P1 3.81 Ordinate to Adjacent Component Lead (RHEF1000 to RHEF1500) P1 7.62 0.7 Lead Spacing* (RHEF050 to RHEF900) F 5.05 0.75 Lead Spacing* (RHEF1000 to RHEF1500) F 10.15 0.75 Reel Width (RHEF050 to RHEF450) W2 56.0 Maximum Reel Width* (RHEF550 to RHEF1500) W2 63.5 Maximum A 370.0 Maximum Space between Flanges* (RHEF050 to RHEF450) W1 48.0 Maximum Space between Flanges* (RHEF550 to RHEF1500) W1 55.0 Maximum C 26.0 12.0 Reel Diameter Arbor Hold Diameter Core Diameter* N 91.0 Maximum Box -- 64/372/362 Maximum Consecutive Missing Places -- None -- Empty Places per Reel -- 0.1% Maximum *Differs from EIA specification. (c) 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/22/18 PolySwitch(R) Resettable PTCs Radial Leaded > RHEF Series Tape and Reel Diagrams h p h p Reference Plane H1 P1 H1 F A L H0 B D4 C2 C1 H W5 W I2 L1 P0 D0 Figure 1 Direction of Unreeling Cross Section A-B t Reel Upper Side n Type a Direction of Unreeling Lower Side c w1 Cross Section w2 Optional Shape: Circular or Polygonal Figure 2 WARNING * Users should independently evaluate the suitability of and test each product selected for their own application. * Operation beyond the maximum ratings or improper use may result in device damage and possible electrical arcing and flame. * These devices are intended for protection against damage caused by 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 silicone-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. * PPTC devices are not recommended for installation in applications where the device is constrained such that its PTC properties are inhibited, for example in rigid potting materials or in rigid housings, which lack adequate clearance to accommodate device expansion. * Operation in circuits with a large inductance can generate a circuit voltage (Ldi/dt) above the rated voltage of the device. Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics. (c) 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/22/18