35217K5FT

SMD POWER RESISTORS Type 3521 Series Key Features 2 Watts at 70°C Small size to power ratio Supplied on tape Value marked on resistor Available via distribution 500 volt maximum overload TE Connectivity is pleased to introduce this low cost high power device, suitable for auto placement in volume, and for most applications, including high frequency operations, owing to the short lead structure. It is attractively priced and available on 7" reels of 4000 pieces. 250 volt working voltage Characteristics – Electrical Terminal finish matte Sn over Ni Power rating at 70°C Max RCWV* Max overload voltage Resistance Tolerance Resistance range Temperature Coefficient Temperature range Ambient temperature 2W 250V 500V 1% 1R0 - 1M0 1M0 ±200PPM -55°C ~ +155°C 70°C * Rated continuous working voltage (RCWV) shall be determined from RCWV = Rated Power x Resistance Value, or Maximum RCWV listed above, whichever is less **Recommended Circuit Board Design - If this device is anticipated to run at full continuous power then action to improve the cooling should be taken. This can be a metal substrate, copper pad left under the chip, an opening in the PCB or enlarged silver conductor pads each end. 9-1773463-5 CIS WR 02/2015 Dimensions in millimetres unless otherwise specified Dimensions Shown for reference purposes only. Specifications subject to change For Email, phone or live chat, go to: www.te.com/help SMD POWER RESISTORS Power derating curve For resistors operated in ambient temperatures above 70°C, power rating must be derated in accordance with this curve. Dimensions L ± 0.10 6.35 9-1773463-5 CIS WR 02/2015 W ± 0.15 3.20 Dimensions in millimetres unless otherwise specified t ± 0.10 0.55 Dimensions Shown for reference purposes only. Specifications subject to change a ± 0.25 0.60 b ± 0.20 1.80 For Email, phone or live chat, go to: www.te.com/help SMD POWER RESISTORS Marking: Marking for E-96 series in 2512 size: 4 digit marking First three digits are significant figures of resistance and the fourth digit represents the number of following zeros *For ohmic values below 100 Ω, letter"R" is for decimal point. Handling Recommendations When flow soldering - the land width must be smaller than the Chip Resistor width to properly control the solder application. Generally, the land width can be Chip Resistor width (W) x 0.7 to 0.8. When reflow soldering – solder application amount can be adjusted. Thus the land width can be set to W x 1.0 to 1.3. How To Order 3521 Common Part 1K0 Resistance Value F T Tolerance Pack Style 1 ohm 1R0 3521 1K ohm 1000 ohms 1K0 F – 1% T – 4000 reel 1 Meg ohm 1000000 ohms 1M0 9-1773463-5 CIS WR 02/2015 Dimensions in millimetres unless otherwise specified Dimensions Shown for reference purposes only. Specifications subject to change For Email, phone or live chat, go to: www.te.com/help