5600 ohm Fixed Resistors 123

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Part	Manufacturer	Resistor Type	Mounting Type	Resistance	Rated Power Dissipation (P)	Maximum Operating Temperature	Tolerance	Diameter (Lead)	Rated Temperature	Technology	Shape (Package)	Construction	Packing Method	Size Code	No. of Terminals	Package Style (Meter)	Terminal Shape	Sub-Category	Dimensions	Minimum Operating Temperature	Temperature Coef (ppm/Cel)	Terminal Finish	Height (Package)	Operating Voltage	Additional Features	Length (Package)	JESD-609 Code	Diameter (Package)	Reference Standard	Width (Package)
RC0603JR-075K6L	Yageo	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	155 Cel	5 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	0603	2	SMT	WRAPAROUND			-55 Cel	100	Matte Tin (Sn) - with Nickel (Ni) barrier	.45 mm	75 V	LASER TRIMMABLE	1.6 mm	e3			.8 mm
RC0603FR-075K6L	Yageo	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	0603	2	SMT	WRAPAROUND			-55 Cel	100	Matte Tin (Sn) - with Nickel (Ni) barrier	.45 mm	75 V	LASER TRIMMABLE	1.6 mm	e3			.8 mm
232270465602	Yageo	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE	Chip	TR, PAPER, 7 INCH	0603	2	SMT	WRAPAROUND	Fixed Resistors		-55 Cel	100	Matte Tin (Sn) - with Nickel (Ni) barrier	.45 mm	75 V	LASER TRIMMABLE	1.6 mm	e3			.8 mm
RC0402FR-075K6L	Yageo	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.0625 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	0402	2	SMT	WRAPAROUND			-55 Cel	100	Matte Tin (Sn) - with Nickel (Ni) barrier	.35 mm	50 V	LASER TRIMMABLE	1 mm	e3			.5 mm
RC0805FR-075K6L	Yageo	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.125 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	0805	2	SMT	WRAPAROUND			-55 Cel	100	Matte Tin (Sn) - with Nickel (Ni) barrier	.5 mm	150 V	LASER TRIMMABLE	2 mm	e3			1.25 mm
CRCW06035K60FKEA	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	0603	2	SMT	WRAPAROUND			-55 Cel	100	MATTE TIN OVER NICKEL	.45 mm	75 V	LASER TRIMMABLE, RATED AC VOLTAGE (V): 75	1.55 mm	e3		AEC-Q200	.85 mm
CRCW04025K60FKED	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.063 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	0402	2	SMT	WRAPAROUND			-55 Cel	100	MATTE TIN OVER NICKEL	.35 mm	50 V	LASER TRIMMABLE, RATED AC VOLTAGE (V): 50	1 mm	e3		AEC-Q200	.5 mm
CRCW06035K60FKEAHP	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.33 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE	Rectangular	TR, PAPER, 7 INCH	0603	2	SMT	WRAPAROUND			-55 Cel	100	MATTE TIN OVER NICKEL	.45 mm	75 V	RATED AC VOLTAGE: 75V	1.6 mm	e3		AEC-Q200	.85 mm
ERJPA3F5601V	Panasonic	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.25 W	155 Cel	1 %		105 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE	Rectangular	TR, PUNCHED, 7 INCH	0603	2	SMT	WRAPAROUND			-55 Cel	100	MATTE TIN OVER NICKEL	.45 mm	150 V	HIGH PRECISION, IEC60115-8	1.6 mm	e3		AEC-Q200	.8 mm
CRCW04025K60FKEDHP	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.2 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE	Rectangular	TR, PAPER, 7 INCH	0402	2	SMT	WRAPAROUND			-55 Cel	100	MATTE TIN OVER NICKEL	.3 mm	50 V	RATED AC VOLTAGE: 50V	1 mm	e3		AEC-Q200	.5 mm
HSA255K6J	TE Connectivity	FIXED RESISTOR	CHASSIS MOUNT	5600 ohm	25 W		5 %		25 Cel	WIRE WOUND	RECTANGULAR PACKAGE	Rectangular	BULK, TRAY		2	Chassis Mount	LUG		51mm x 28mm x 15mm		30		15 mm	550 V	RATED AC VOLTAGE (V): 550	29 mm				28 mm
CRCW04025K60FKEDC	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.063 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	0402	2	SMT	WRAPAROUND			-55 Cel	100	MATTE TIN OVER NICKEL	.3 mm	50 V	RATED AC COLTAGE(V): 50	1 mm	e3			.5 mm
ERJ3EKF5601V	Panasonic	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE	Rectangular	TR, PUNCHED, 7 INCH	0603	2	SMT	WRAPAROUND			-55 Cel	100	MATTE TIN OVER NICKEL	.45 mm	75 V	PRECISION, STANDARD: IEC60115-8	1.6 mm	e3		AEC-Q200	.8 mm
CRCW08055K60JNTA	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.125 W	155 Cel	5 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	0805	2	SMT	WRAPAROUND			-55 Cel	200	TIN LEAD OVER NICKEL	.45 mm	150 V	LASER TRIMMABLE, RATED AC VOLTAGE (V):150	2 mm	e0		AEC-Q200	1.25 mm
CRCW06035K60FKEAC	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	0603	2	SMT	WRAPAROUND			-55 Cel	100	MATTE TIN OVER NICKEL	.45 mm	75 V	RATED AC COLTAGE(V): 75	1.6 mm	e3			.8 mm
CRCW08055K60FKEAHP	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.5 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE	Rectangular	TR, PAPER, 7 INCH	0805	2	SMT	WRAPAROUND			-55 Cel	100	TIN OVER NICKEL	.5 mm	150 V	RATED AC VOLTAGE: 150V	2 mm	e3		AEC-Q200	1.25 mm
ERA3AEB562V	Panasonic	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	155 Cel	.1 %		85 Cel	THIN FILM	RECTANGULAR PACKAGE	Rectangular	TR, PUNCHED, 7 INCH	0603	2	SMT	WRAPAROUND			-55 Cel	25	MATTE TIN OVER NICKEL	.45 mm	75 V	IEC60115-8	1.6 mm	e3		AEC-Q200	.8 mm
CRCW08055K60FKEA	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.125 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	0805	2	SMT	WRAPAROUND			-55 Cel	100	MATTE TIN OVER NICKEL	.45 mm	150 V	LASER TRIMMABLE, RATED AC VOLTAGE (V): 150	2 mm	e3		AEC-Q200	1.25 mm
ERJ12ZYJ562U	Panasonic	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.75 W	155 Cel	5 %		70 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE	Rectangular	TR, EMBOSSED, 7 INCH	2010	2	SMT	WRAPAROUND			-55 Cel	200	MATTE TIN OVER NICKEL	.6 mm	200 V	IEC60115-8	5 mm	e3		AEC-Q200	2.5 mm
ERA6AEB562V	Panasonic	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.125 W	155 Cel	.1 %		85 Cel	THIN FILM	RECTANGULAR PACKAGE	Rectangular	TR, PUNCHED, 7 INCH	0805	2	SMT	WRAPAROUND			-55 Cel	25	MATTE TIN OVER NICKEL	.5 mm	100 V	IEC60115-8	2 mm	e3		AEC-Q200	1.25 mm
HSA505K6J	TE Connectivity	FIXED RESISTOR	CHASSIS MOUNT	5600 ohm	50 W		5 %		25 Cel	WIRE WOUND	RECTANGULAR PACKAGE	Rectangular	BULK, TRAY		2	Chassis Mount	LUG		72.5mm x 30mm x 17mm		30		17 mm	1250 V	RATED POWER DISSIPATED USING HEAT SINK: 50W, RATED AC VOLTAGE (V): 1250	51 mm				30 mm
RK73H1JTTD5601F	Koa Speer Electronics	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE	Rectangular	TR, PUNCHED PAPER, 7 INCH	0603	2	SMT	WRAPAROUND			-55 Cel	100	MATTE TIN OVER NICKEL	.45 mm	75 V	PRECISION	1.6 mm	e3		AEC-Q200	.8 mm
CRG1206F5K6	TE Connectivity	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.25 W	155 Cel	1 %		70 Cel	THICK FILM	RECTANGULAR PACKAGE	Rectangular	TR	1206	2	SMT	WRAPAROUND		3.1mm x 1.55mm x .55mm	-55 Cel	100	MATTE TIN OVER NICKEL	.55 mm	200 V	LASER TRIMMABLE	3.1 mm	e3			1.55 mm
CRCW08055K60FKEAC	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.125 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	0805	2	SMT	WRAPAROUND			-55 Cel	100	MATTE TIN OVER NICKEL	.5 mm	150 V	RATED AC COLTAGE(V): 150	2 mm	e3			1.25 mm
ERA2AEB562X	Panasonic	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.063 W	155 Cel	.1 %		85 Cel	THIN FILM	RECTANGULAR PACKAGE	Rectangular	TR, PUNCHED, 7 INCH	0402	2	SMT	WRAPAROUND			-55 Cel	25	MATTE TIN OVER NICKEL	.35 mm	50 V	IEC60115-8	1 mm	e3		AEC-Q200	.5 mm
MCT06030C5601FP500	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	125 Cel	1 %		70 Cel	THIN FILM	RECTANGULAR PACKAGE	Rectangular	TR, PAPER, 7 INCH	0603	2	SMT	WRAPAROUND	FIXED RESISTOR		-55 Cel	50	MATTE TIN OVER NICKEL	.45 mm	75 V	ANTI-SULFUR, LASER TRIMMABLE, RATED AC VOLTAGE (V): 75	1.55 mm	e3		CECC40401-801	.85 mm
RC1206FR-075K6L	Yageo	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.25 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	1206	2	SMT	WRAPAROUND			-55 Cel	100	Matte Tin (Sn) - with Nickel (Ni) barrier	.55 mm	200 V	LASER TRIMMABLE	3.1 mm	e3			1.6 mm
CRGCQ0603F5K6	TE Connectivity	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W		1 %			THICK FILM	RECTANGULAR PACKAGE		TR	0603	2		WRAPAROUND		1.6mm x .8mm x .45mm		100			75 V
MRS16000C5601FCT00	Vishay Intertechnology	FIXED RESISTOR	THROUGH HOLE MOUNT	5600 ohm	.4 W	155 Cel	1 %	.5 mm	70 Cel	THIN FILM	TUBULAR PACKAGE	Tubular	BULK		2	Axial	WIRE	FIXED RESISTOR		-55 Cel	50	Matte Tin (Sn)		200 V	RATED AC VOLTAGE (V): 200	3.6 mm	e3	1.6 mm
CRG0603F5K6	TE Connectivity	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	155 Cel	1 %		70 Cel	THICK FILM	RECTANGULAR PACKAGE	Rectangular	TR	0603	2	SMT	WRAPAROUND		1.6mm x .8mm x .45mm	-55 Cel	100	MATTE TIN OVER NICKEL	.45 mm	75 V	LASER TRIMMABLE	1.6 mm	e3			.8 mm
35225K6FT	TE Connectivity	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	3 W		1 %			THICK FILM	RECTANGULAR PACKAGE		TR	2512	2		WRAPAROUND		6.35mm x 3.2mm x .55mm		100
CRCW12065K60FKEA	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.25 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	1206	2	SMT	WRAPAROUND			-55 Cel	100	MATTE TIN OVER NICKEL	.55 mm	200 V	LASER TRIMMABLE, RATED AC VOLTAGE (V): 200	3.2 mm	e3		AEC-Q200	1.6 mm
PR01000105601JR500	Vishay Intertechnology	FIXED RESISTOR	THROUGH HOLE MOUNT	5600 ohm	1 W	200 Cel	5 %	.58 mm	70 Cel	METAL FILM	TUBULAR PACKAGE	Tubular	TR		2	Axial	WIRE	FIXED RESISTOR		-55 Cel	250	MATTE TIN		350 V		6.5 mm	e3	2.5 mm	AEC-Q200
RC0402JR-075K6L	Yageo	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.0625 W	155 Cel	5 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	0402	2	SMT	WRAPAROUND			-55 Cel	100	Matte Tin (Sn) - with Nickel (Ni) barrier	.35 mm	50 V	LASER TRIMMABLE	1 mm	e3			.5 mm
RC0805JR-075K6L	Yageo	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.125 W	155 Cel	5 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	0805	2	SMT	WRAPAROUND			-55 Cel	100	Matte Tin (Sn) - with Nickel (Ni) barrier	.5 mm	150 V	LASER TRIMMABLE	2 mm	e3			1.25 mm
RT0402BRD075K6L	Yageo	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.0625 W	155 Cel	.1 %		70 Cel	THIN FILM		Rectangular	TR, PAPER, 7 INCH	0402	2	SMT	WRAPAROUND			-55 Cel	25	Matte Tin (Sn) - with Nickel (Ni) barrier	.3 mm	50 V	HIGH PRECISION, LASER TRIMMABLE	1 mm	e3			.5 mm
CR0603-JW-562ELF	Bourns	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	155 Cel	5 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, Paper, 7 Inch	0603	2	SMT	WRAPAROUND			-55 Cel	200	TIN OVER NICKEL	.45 mm	75 V		1.6 mm	e3			.8 mm
ERJ6ENF5601V	Panasonic	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.125 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE	Rectangular	TR, PUNCHED, 7 INCH	0805	2	SMT	WRAPAROUND			-55 Cel	100	MATTE TIN OVER NICKEL	.6 mm	150 V	PRECISION, STANDARD: IEC60115-8	2 mm	e3		AEC-Q200	1.25 mm
ERJU03F5601V	Panasonic	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PUNCHED, 7 INCH	0603	2	SMT	WRAPAROUND			-55 Cel	100	TIN	.45 mm	75 V	ANTI-SULFUR, IEC60115-8	1.6 mm	e3		AEC-Q200	.8 mm
ERJ2GEJ562X	Panasonic	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	155 Cel	5 %		70 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE	Rectangular	TR, PUNCHED, 7 INCH	0402	2	SMT	WRAPAROUND			-55 Cel	200	MATTE TIN OVER NICKEL	.35 mm	50 V	IEC60115-8	1 mm	e3		AEC-Q200	.5 mm
ERJ2RKF5601X	Panasonic	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE	Rectangular	TR, PUNCHED, 7 INCH	0402	2	SMT	WRAPAROUND			-55 Cel	100	MATTE TIN OVER NICKEL	.35 mm	50 V	PRECISION, STANDARD: IEC60115-8	1 mm	e3		AEC-Q200	.5 mm
ERJ2RHD5601X	Panasonic	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.063 W	155 Cel	.5 %		70 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE	Rectangular	TR, PUNCHED, 7 INCH	0402	2	SMT	WRAPAROUND			-55 Cel	50	MATTE TIN OVER NICKEL	.35 mm	50 V	PRECISION, STANDARD: IEC60115-8	1 mm	e3		AEC-Q200	.5 mm
TNPW06035K60BEEA	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	125 Cel	.1 %		70 Cel	THIN FILM		Rectangular	TR, PAPER, 7 INCH	0603	2	SMT	WRAPAROUND			-55 Cel	25	MATTE TIN OVER NICKEL	.45 mm	75 V	ANTI-SULFUR; LASER TRIMMABLE; PRECISION; RATED AC VOLTAGE (V): 75	1.55 mm	e3		AEC-Q200	.85 mm
AC0402FR-075K6L	Yageo	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.0625 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	0402	2	SMT	WRAPAROUND			-55 Cel	100	Matte Tin (Sn) - with Nickel (Ni) barrier	.32 mm	50 V	LASER TRIMMABLE	1 mm	e3		AEC-Q200	.5 mm
RC0805JR-135K6L	Yageo	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.125 W	155 Cel	5 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 13 INCH	0805	2	SMT	WRAPAROUND			-55 Cel	100	Matte Tin (Sn) - with Nickel (Ni) barrier	.5 mm	150 V	LASER TRIMMABLE	2 mm	e3			1.25 mm
CRCW08055K60JNEB	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.125 W	155 Cel	5 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 11.25 INCH	0805	2	SMT	WRAPAROUND			-55 Cel	200	MATTE TIN OVER NICKEL	.45 mm	150 V	LASER TRIMMABLE, RATED AC VOLTAGE (V): 150	2 mm	e3		AEC-Q200	1.25 mm
ERA3ARB562V	Panasonic	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	155 Cel	.1 %		85 Cel	THIN FILM	RECTANGULAR PACKAGE	Rectangular	TR, PUNCHED, 7 INCH	0603	2	SMT	WRAPAROUND			-55 Cel	10	MATTE TIN OVER NICKEL	.45 mm	75 V	IEC60115-8	1.6 mm	e3		AEC-Q200	.8 mm
MC0.1W08055%5K6	Multicomp Pro	FIXED RESISTOR	SURFACE MOUNT	5600 ohm	.1 W	155 Cel	5 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular		0805	2	SMT	WRAPAROUND	FIXED RESISTOR		-55 Cel	200		.55 mm	150 V		2 mm				1.25 mm

Fixed Resistors

Fixed resistors are passive electronic components that are used to resist the flow of electric current in a circuit. They have a fixed value of resistance, meaning their resistance cannot be adjusted once they are manufactured. They are commonly used to set the bias of transistors, control the gain of amplifiers, or limit the current flowing through an LED. Fixed resistors come in various sizes, power ratings, and tolerances.

There are two types of fixed resistors: through-hole and surface mount. Through-hole resistors have leads that are inserted into holes on the printed circuit board (PCB), while surface mount resistors have terminals that are soldered directly to the surface of the PCB. Through-hole resistors are larger and easier to work with, but surface mount resistors are smaller and more suitable for miniaturized electronic devices.

Fixed resistors can be made from a variety of materials, including carbon, metal, and wire-wound. Carbon resistors are inexpensive and widely used, but they have a lower tolerance and are more susceptible to noise than other types. Metal film resistors have a higher tolerance and better stability, making them ideal for use in precision circuits. Wire-wound resistors have a higher power rating and are used in high power applications, such as power supplies and amplifiers.