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Surface Mount Resistors

Surface mount resistors, also reffered to as SMD, are the most widely used resistors as they reduce the flow of the electrical current in circuits. Similar to water flowing along a pipe, the tap controls the flow of water, a resistor controls the flow of current. They work to a fixed value the resistance does not change in temperature or voltage.

These resistors offer advantages in space saving on Printed Circuit Boards (PCB's). Some common package sizes are 0201,0402,0603,0805,1206,1210,2020,2512.

Resistors are used in large volumes and are the preferred choice in electronics equipment due to their small size and high reliability. SMD resistors are particularly used in telecommunication, automotive (AEC Q200 qualified) and medical equipment, they also found in personal devices, displays and advanced technology research instruments. Check out our handy LED Resistor Value calculator to determine what resistor value you require for your LED lighting.

Types of surface mount resistors

Thin Film Resistors have a higher precision than the thick film
Thick Film Resistors are used for general use due to a lower price point
Moulded Wirewound Resistors offer higher power
Foil Resistors for ultra-high precision and really low-Temperature coefficient of resistance
Shunts (current sense) Low ohmic values for where current measurement is critica
Melf (cylindrical) offering superb pulse load capability

What are surface mount fixed resistors used for?

SMD fixed resistors are very compact and used in most electronic board design. Due to their compact size and the continuous development of ever smaller footprints, this has allowed for the development of ever smaller PCB designs and the ability to get more from the board. The resistors can assist in the reduction of component count on the board.

What is the difference between Thin Film Resistors and Thick Film Resistors?

The main difference being that the thick film resistors have a paste fired on to the manufacturers chosen substrate. Thin film resistors as the name suggests has an extremely thin metal film that is generally vacuum deposited on to the manufacturers chosen substrate.

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In Stock RS PRO RS 200 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W RS Stock No. 804-9022 Subtotal (1 reel of 5000 units) £10.00(exc. VAT) £0.002/unit Quantity	Surface Mount Resistor	200kΩ	0603	General Purpose	Thick Film	±1 %	Tape & Reel	0.1W	-100 ppm/°C, +100 ppm/°C	75V	-	No	-	1.6mm	-	0.45mm	-55°C	-	RS	155°C	IEC 60115-1, JIS C 5201-1	Solder Pad	0.8mm	-	-
In Stock RS PRO 680 kΩ, 1206 Thick Film Resistor 1 % 7 W - RSPHVRC06FTEO6803 RS Stock No. 257-2986 Subtotal (1 tape of 10 units) £0.60(exc. VAT) £0.06/unit Quantity	Resistor	680kΩ	1206	-	Thick Film	1 %	-	7W	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
In Stock RS PRO 3.3 mΩ, 1206 Thin Film Resistor ±0.1 % 1.8 W - RSPARM06BTC3304A RS Stock No. 256-7551P Subtotal 5 units (supplied on a continuous strip) £0.84(exc. VAT) £0.168/unit Quantity	Resistor	3.3mΩ	1206	-	Thin Film	±0.1 %	-	1.8W	±25 ppm/°C	-	-	AEC-Q200	-	-	-	-	-55°C	-	-	155°C	-	-	-	-	-
In Stock RS PRO 10 mΩ, 1206 Thick Film Resistor ±1 % 0.25 W - RSPHVR06FTFV1005 RS Stock No. 256-7771 Subtotal (1 tape of 25 units) £2.70(exc. VAT) £0.108/unit Quantity	Resistor	10mΩ	1206	-	Thick Film	±1 %	-	0.25W	±200 ppm/°C	-	-	-	-	-	-	-	-55°C	-	-	155°C	-	-	-	-	-
In Stock RS PRO RSTN 330 Ω, 0805 Thin Film Resistor 0.1 % 0.4 W RS Stock No. 243-0670 Subtotal (1 tape of 10 units) £4.04(exc. VAT) £0.404/unit Quantity	Resistor	330Ω	0805	-	Thin Film	0.1 %	Tape & Reel	0.4W	±50 to 100 ppm/°C	150V	-	No	-	-	-	-	-55°C	-	RSTN	155°C	No	Solder	-	-	-
In Stock RS PRO RSTN 100 Ω, 2512 Thin Film Resistor 0.1 % 6 W RS Stock No. 243-0547 Subtotal (1 unit) £4.00(exc. VAT) £4.00/unit Quantity	Resistor	100Ω	2512	-	Thin Film	0.1 %	Tape & Reel	6W	50 to 200 ppm/°C	100V	-	No	-	-	-	-	-55°C	-	RSTN	155°C	No	Solder	-	-	-
In Stock RS PRO RS 15 Ω, 0805 Thick Film Surface Mount Resistor ±1 % Surface 0.125 W RS Stock No. 804-6307 Subtotal (1 reel of 5000 units) £20.00(exc. VAT) £0.004/unit Quantity	Surface Mount Resistor	15Ω	0805	General Purpose	Thick Film	±1 %	Tape & Reel	0.125W	-100 ppm/°C, +100 ppm/°C	150V	Surface	No	-	2mm	-	0.5mm	-55°C	-	RS	155°C	IEC 60115-1, JIS C 5201-1	Solder Pad	1.25mm	-	-
In Stock RS PRO 150 kΩ, 1206 Thick Film Resistor 1 % 7 W - RSPHVRC06FTEO1503 RS Stock No. 257-2952 Subtotal (1 tape of 10 units) £0.53(exc. VAT) £0.053/unit Quantity	Resistor	150kΩ	1206	-	Thick Film	1 %	-	7W	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
In Stock RS PRO RS 33 kΩ, 0603 Thick Film Surface Mount Resistor ±5 % 0.1 W RS Stock No. 713-4208 Subtotal (1 reel of 5000 units) £10.00(exc. VAT) £0.002/unit Quantity	Surface Mount Resistor	33kΩ	0603	General Purpose	Thick Film	±5 %	Tape & Reel	0.1W	-200 ppm/°C, +200 ppm/°C	75V	-	No	-	1.6mm	-	0.45mm	-55°C	-	RS	155°C	IEC 60115, JIS C 5201, RoHS	Solder Pad	0.8mm	-	-
In Stock RS PRO 56 kΩ, 2512 Thick Film Resistor 1 % 1 W - RSPHVRC12FTET5602 RS Stock No. 257-3110 Subtotal (1 tape of 10 units) £2.45(exc. VAT) £0.245/unit Quantity	Resistor	56kΩ	2512	-	Thick Film	1 %	-	1W	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
In Stock RS PRO RS 3.3 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W RS Stock No. 804-8877 Subtotal (1 reel of 5000 units) £15.00(exc. VAT) £0.003/unit Quantity	Surface Mount Resistor	3.3kΩ	0603	General Purpose	Thick Film	±1 %	Tape & Reel	0.1W	-100 ppm/°C, +100 ppm/°C	75V	-	No	-	1.6mm	-	0.45mm	-55°C	-	RS	155°C	IEC 60115-1, JIS C 5201-1	Solder Pad	0.8mm	-	-
In Stock RS PRO 100 Ω, 0805 Polymer Resistor 5 % 0.25 W - RSPSWR05JTFV1000 RS Stock No. 257-3146 Subtotal (1 tape of 100 units) £3.30(exc. VAT) £0.033/unit Quantity	Resistor	100Ω	0805	-	Polymer	5 %	-	0.25W	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
In Stock RS PRO RSTN 2.2 kΩ, 1206 Thin Film Resistor 0.1 % 2 W RS Stock No. 243-0527P Subtotal 5 units (supplied on a continuous strip) £5.99(exc. VAT) £1.198/unit Quantity	Resistor	2.2kΩ	1206	-	Thin Film	0.1 %	Tape & Reel	2W	50 to 200 ppm/°C	100V	-	No	-	-	-	-	-55°C	-	RSTN	155°C	No	Solder	-	-	-
In Stock RS PRO RSTN 4.7 kΩ, 2512 Thin Film Resistor 0.1 % 6 W RS Stock No. 243-0569 Subtotal (1 unit) £4.14(exc. VAT) £4.14/unit Quantity	Resistor	4.7kΩ	2512	-	Thin Film	0.1 %	Tape & Reel	6W	50 to 200 ppm/°C	100V	-	No	-	-	-	-	-55°C	-	RSTN	155°C	No	Solder	-	-	-
In Stock RS PRO TRSTNF 620 Ω, 0402 Thin Film Resistor 0.1 % 0.06 W RS Stock No. 243-0717P Subtotal 10 units (supplied on a continuous strip) £3.49(exc. VAT) £0.349/unit Quantity	Resistor	620Ω	0402	-	Thin Film	0.1 %	Tape & Reel	0.06W	±50 to 100 ppm/°C	50V	-	AEC-Q200	-	1mm	-	0.3mm	-55°C	-	TRSTNF	155°C	IEC 60115-1 4.8, UL	Solder	0.5mm	-	-
In Stock RS PRO TRSTNF 620 Ω, 0402 Thin Film Resistor 0.1 % 0.06 W RS Stock No. 243-0717 Subtotal (1 tape of 10 units) £3.49(exc. VAT) £0.349/unit Quantity	Resistor	620Ω	0402	-	Thin Film	0.1 %	Tape & Reel	0.06W	±50 to 100 ppm/°C	50V	-	AEC-Q200	-	1mm	-	0.3mm	-55°C	-	TRSTNF	155°C	IEC 60115-1 4.8, UL	Solder	0.5mm	-	-
In Stock RS PRO RSTN 220 Ω, 1206 Thin Film Resistor 0.1 % 2 W RS Stock No. 243-0525P Subtotal 5 units (supplied on a continuous strip) £6.20(exc. VAT) £1.24/unit Quantity	Resistor	220Ω	1206	-	Thin Film	0.1 %	Tape & Reel	2W	50 to 200 ppm/°C	100V	-	No	-	-	-	-	-55°C	-	RSTN	155°C	No	Solder	-	-	-
In Stock RS PRO RS 100 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W RS Stock No. 804-9000 Subtotal (1 reel of 5000 units) £10.00(exc. VAT) £0.002/unit Quantity	Surface Mount Resistor	100kΩ	0603	General Purpose	Thick Film	±1 %	Tape & Reel	0.1W	-100 ppm/°C, +100 ppm/°C	75V	-	No	-	1.6mm	-	0.45mm	-55°C	-	RS	155°C	IEC 60115-1, JIS C 5201-1	Solder Pad	0.8mm	-	-
Last RS stock RS PRO TCS 1 Ω, 2512 Thin Film Surface Mount Resistor ±0.5 % 3 W RS Stock No. 241-4954 Subtotal (1 tape of 10 units) £6.75(exc. VAT) £0.675/unit Quantity	Surface Mount Resistor	1Ω	2512	-	Thin Film	±0.5 %	Tape & Reel	3W	±50 ppm/°C	-	-	No	-	-	-	-	-55°C	-	TCS	155°C	No	Solder	-	-	-
In Stock RS PRO RSTN 10 kΩ, 0805 Thin Film Resistor 0.1 % 0.4 W RS Stock No. 243-0652 Subtotal (1 tape of 10 units) £4.08(exc. VAT) £0.408/unit Quantity	Resistor	10kΩ	0805	-	Thin Film	0.1 %	Tape & Reel	0.4W	±50 to 100 ppm/°C	150V	-	No	-	-	-	-	-55°C	-	RSTN	155°C	No	Solder	-	-	-