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SMD POWER RESISTORS AEC-Q200 QUALIFIED Type 3521 Series Key Features 2 Watts at 70°C Small size to power ratio Supplied on tape Value marked on resistor 500 volt maximum overload 250 volt maximum working voltage Terminal finish matte Sn over Ni AEC-Q200 Qualified TE Connectivity is pleased to announce that our 3521 series high power Thick Film Chip Resistor is now AEC-Q200 Qualified. This low cost device, suitable for auto placement in volume, and for most applications, including high frequency operations, owing to the short lead structure, is attractively priced and available on 7" reels of 4000 pieces. Characteristics – Electrical Power Rating Resistance Range Tolerance Max. Working Voltage Max. Overload Voltage Dielectric Withstanding Voltage Temperature Range Ambient Temperature 2W 0.1Ω ~ 10MΩ ±1% ±5% 250V 500V 500V -55°C ～ +155°C 70°C Resistors shall have a power rating based on continuous load operation at an ambient temperature of 70 ℃ . For temperature in excess of 70 ℃ , The load shall be derated as shown below: 9-1773463-5 Rev G 02/2020 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 AEC-Q200 QUALIFIED Voltage Rating: Resistors shall have a rated direct-current (DC) continuous working voltage or an approximate sine-wave root-mean-square (RMS) alternating-current (AC) continuous working voltage at commercial line frequency and waveform corresponding to the power rating , as determined from the following formula: RCWV = √P x R Where: RCWV = Rated DC or RMS AC continuous working voltage at commercial-line frequency and waveform (volt) P = Power Rating (watt) R = Nominal Resistance (ohm) In no case shall the rated DC or RMS AC continuous working voltage be greater than the applicable maximum value. Construction & Dimensions: Dimensions: (mm) L W 6.35±0.10 3.20±0.20 9-1773463-5 Rev G 02/2020 Dimensions in millimetres unless otherwise specified H 0.55±0.10 Dimensions Shown for reference purposes only. Specifications subject to change ℓ 0.60±0.25 ℓ 0.50±0.20 For Email, phone or live chat, go to: www.te.com/help SMD POWER RESISTORS AEC-Q200 QUALIFIED Recommended solder pad A Width (mm) 3.0 B Pad (mm) 1.5 C Spacing (mm 5.0 4 layers PCB specification: 1) Outside 2 layers (Top and Bottom) with copper foil thickness at 2oz. 2) Inside 2 layers (Middle layers) with copper foil thickness at 4 oz. Marking: For E24 series Values three digit marking, the first two digits are significant figures and the third denoting number of zeros. E.G. For Oh i Values elo E.G. 333 KΩ 3R3 . Ω Ω For E96 Values four digit marking, the first three showing significant figures and the fourth showing number of zeros. As previously letter R is for decimal point. E.G. 9-1773463-5 Rev G 02/2020 4992 Dimensions in millimetres unless otherwise specified Dimensions Shown for reference purposes only. Specifications subject to change 49K9Ω For Email, phone or live chat, go to: www.te.com/help SMD POWER RESISTORS AEC-Q200 QUALIFIED Performance Specification: Characteristics Limits Operational life ± %+ . Ω < Test Methods a Ω . Ω