SS-258 R6

AHA 6/20/08

Current Sensing Chip Resistor

UR73 Type

I

Very low resistance, high precision reliability

I

Suitable for reflow and flow soldering

I

Products with lead-free terminations meet RoHS requirements. Pb located in glass material,

electrode and resistor element is exempt per Annex 1, exemption 5 of EU directive 2005/95/EC

I

Utilization of thick film

I

Low T.C.R. achieved (±100 ppm/°C)

1. Features

KOA SPEER ELECTRONICS, INC.

2. Dimensions

Protective

Coating

Inner

Electrode

Resistive

Film

Ceramic

Substrate

Ni

Plating

L

a

a

W

h

b

Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.

PAGE 1 OF 4

3. Type Designation

The type designation shall be in the following form:

Tolerance

Nominal

Resistance

F: ±1%

All values less than 0.1Ω (100mΩ) are

expressed in mΩ with “L” as decimal.

Ex: 20mΩ = 20L0

F

R10

Packaging

TP: 2mm pitch punch paper

(1E: 10,000 pcs/reel)

TD: 7" punched paper tape

(1J, 2A, 2B: 5,000 pcs/reel)

TE: 7" embossed plastic

(2H, 3A: 4,000 pcs/reel)

TD

Termination

Material

T: Sn

T

UR73

Type

Size Code

1E: 0.125W

1J: 0.2 W

2A: 0.25 W

2B: 0.5 W

2H: 0.75W

3A: 1 W

2A

CERTIFIED

CERTIFIED

Protective

Coating

Inner

Electrode

Resistive

Film

Ceramic

Substrate

Ni

Plating

L

a

a

W

h

b

Solder

Plating

UR73

UR73D

UR73

UR73D

Size

Code

.126±.008

(3.2±0.2)

.079±.008

(2.0±0.2)

.024±.004

(0.6±0.1)

.02±.004

(0.55±0.1)

.020±.012

(0.5±0.3)

.016±.008

(0.4±0.2)

.063±.008

(1.6±0.2)

.049±.008

(1.25±0.2)

2A

2B

b

a

h

W

L

Dimensions inches (mm)

-.004

-0.1

-.004

-0.1

30m ~ 100m

33m ~ 100m

Resistance

Range

.079±.008

(2.0±0.2)

.063±.008

(1.6±0.2)

.022±.004

(0.55±0.1)

.02±.004

(0.5±0.1)

.016±.008

(0.4±0.2)

.014±.004

(0.35±0.1)

.049±.008

(1.25±0.2)

-.004

-0.1

D1J

D2A

.022±.004

(0.55±0.1)

10m ~ 16m

18m ~ 30m

10m ~ 27m

30m ~ 100m

.126±.008

(3.2±0.2)

.024±.004

(0.6±0.1)

.020±.008

(0.5±0.2)

.063±.008

(1.6±0.2)

D2B

10m ~ 16m

18m ~ 27m

.014±.004

(0.35±0.1)

.024±.008

(0.6±0.2)

.02±.008

(0.5±0.2)

.039±.008

(1.0±0.2)

.031±.008

(0.8±0.2)

.248±.008

(6.3±0.2)

.024±.004

(0.6±0.1)

.031±.012

(0.8±0.3)

.122±.008

(3.1±0.2)

D3A

10m ~ 30m

33m ~ 100m

.079±.012

(2.0±0.3)

.031±.012

(0.8±0.3)

.197±.008

(5.0±0.2)

.026±.004

(0.65±0.1)

.026±.012

(0.65±0.3)

.098±.008

(2.5±0.2)

D2H

10m ~ 30m

33m ~ 100m

.063±.012

(1.6±0.3)

.026±.012

(0.65±0.3)

-.002

-0.05

.016±.002

(0.4±0.05)

.010±.004

(0.25±0.1)

-.002

-0.05

D1E

.012±.004

(0.3±0.1)

24m ~ 100m