Protective
Coating Inner
Electrode
Resistive
Film
Ceramic
Substrate
Solder
Plating
Ni
Plating
Lcc
W
t
d
8
RK73B
general purpose 2%, 5% tolerance
thick film chip resistor
features
•RuO2thick film resistor element
•Anti-leaching nickel barrier terminations
•Meets or exceeds EIA 575, EIAJ RC 2690A,
EIA PDP-100, MIL-R-55342F
•Marking: White three-digit on black protective coat
No marking on 1F, 1H and 1E sizes
•Products with lead-free terminations meet EU RoHS
requirements. Pb located in glass material, electrode
and resistor element is exempt per Annex 1, exemption
5 of EU directive 2005/95/EC
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 10/29/08
dimensions and construction Type
L
1H
(0201) .024±.001
(0.6±0.03)
.039 +.004
-.002
(1.0 +0.1 )
-0.05
.01 +.002
-.004
(0.25 +0.05)
-0.1
.012 +.008
-.004
(0.3 +0.2)
-0.1
.016 +.008
-.004
(0.4 +0.2)
-0.1
.016 +.008
-.004
(0.4 +0.2)
-0.1
.012±.001
(0.3±0.03)
.004±.002
(0.1±0.05)
.006±.002
(0.15±0.05)
.009±.001
(0.23±0.03)
.014±.002
(0.35±0.05)
.018±.004
(0.45±0.1)
.012±.004
(0.3±0.1)
.02±.004
(0.5±0.1)
.024±.004
(0.6±0.1)
.008±.004
(0.2±0.1)
.012±.004
(0.3±0.1)
.016±.008
(0.4±0.2)
.02±.012
(0.5±0.3)
.063±.008
(1.6±0.2)
.102±.008
(2.6±0.2)
.098±.008
(2.5±0.2)
.122±.008
(3.1±0.2)
.126±.008
(3.2±0.2)
.049±.004
(1.25±0.1)
.031±.004
(0.8±0.1)
.02±.002
(0.5±0.05)
.063±.008
(1.6±0.2)
.079±.008
(2.0±0.2)
.197±.008
(5.0±0.2)
.248±.008
(6.3±0.2)
1E
(0402)
1J
(0603)
2A
(0805)
2B
(1206)
2H
(2010)
3A
(2512)
(Inch Size Code) Wc d t
Dimensions inches (mm)
ordering information
G: ±2%
J: ±5%
T: Sn
(1F, 1H, 1E,
1J, 2A, 2B, 2E,
2H, 3A)
L: SnPb
(1E, 1J, 2A,
2B, 2E, 2H,3A)
G: Au
(1E, 1J, 2A:
10Ω~ 1MΩ-
Contact factory)
2 significant
figures + 1
multiplier
“R” indicates
decimal on
value <10Ω
1F
1H
1E
1J
2A
2B
2E
2H
3A
W2H
W3A
TBL:01005 only: 2mm pitch pressed paper
TA: 0201 only: 1mm pitch pressed paper
TC: 0201 only: 7" 2mm pitch pressed paper
(TC: 10,000 pcs/reel, TCM: 15,000 pcs/reel)
TCD: 0201 only: 10" 2mm pitch punched paper
TPL:0402 only: 2mm pitch punched paper
TP: 0402, 0603 & 0805: 7" 2mm pitch punched paper
TD: 0603, 0805, 1206 &1210: 7" 2mm pitch punched paper
TDD: 0603, 0805, 1206 &1210: 10" paper tape
TE: 0805, 1206, 1210, 2010 & 2512: 7" punched plastic
TED: 0805, 1206, 1210, 2010 & 2512: 10" punched plastic
For further information on packaging, please refer
to Appendix A
RK73B
Type Size Nominal
Resistance Tolerance
Termination
Material Packaging
New Part # 2B TD 102 JT
2E
(1210)
Derating Curve
100
80
60
40
20
20 40 60 80 100120140160180
12570
Ambient Temperature
(°C)
1F, 1H 1E, 1J, 2A, 2B, 2E, 2H,
00
155
3A, W2H,W3A
resistors
1F
(01005) .015±.001
(0.4±0.02)
.007±.001
(0.2±0.02)
.004±.001
(0.10±0.03)
.004±.001
(0.11±0.03)
.005±.001
(0.13±0.02)
W2H
(2010)
W3A
(2512)
EU
.026±.006
(0.65±0.15)
.026±.006
(0.65±0.15)
RK73B
general purpose 2%, 5% tolerance
thick film chip resistor
9
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 12/09/08
resistors
* Parenthesis indicate EIA package size codes. *** Please contact KOA Speer for the Max. working voltage and the Max. overload voltage.
** See Appendix D for available decade values.
Absolute
Maximum
Working
Voltage
Resistance
Range
E-24**
(J±5%)
Resistance
Range
E-24**
(G±2%)
Part
Designation*
Absolute
Maximum
Overload
Voltage
Operating
Temperature
Range
Power
Rating
@ 70°C
T.C.R.
(ppm/°C)
Max.
applications and ratings
RK73B1H
(0201)
RK73B1E
(0402)
1/20W (.05W)
1/16W (.063W)
RK73B1J
(0603) 1/10W (.10W)
RK73B2A
(0805) 1/8W (.125W)
RK73B2B
(1206)
RK73B2E
(1210)
1/4W (.25W)
±200 10Ω- 10MΩ10Ω- 10MΩ
25V 50V
50V 100V
150V 200V
200V 400V
-55°C to +125°C
-55°C to +155°C
±200 1Ω- 1MΩ
±400
1Ω- 10MΩ
RK73B2H/W2H
(2010)
RK73B3A/W3A
(2512)
3/4W (.75W)
1W
±200 1Ω- 10MΩ1Ω- 10MΩ
11MΩ- 22MΩ
1Ω- 1MΩ
1.1MΩ- 10MΩ
1Ω- 5.6MΩ
6.2MΩ- 22MΩ
6.2MΩ- 22MΩ
6.2MΩ- 22MΩ
—
1Ω- 1MΩ
1.1MΩ- 10MΩ
1Ω- 5.6MΩ
10Ω- 1KΩ
1.1KΩ- 5.6MΩ
10Ω- 5.6MΩ1Ω- 5.6MΩ
1Ω- 5.6MΩ10Ω- 5.6MΩ
1Ω- 1KΩ
1.1KΩ- 5.6MΩ
6.2MΩ- 10MΩ
6.2MΩ- 10MΩ
±200
±400
±200
±200
±400
1/2W (.50W)
1/3W (.33W)
1/3W (.33W)
±400
—
—
—
±200
±400
±200
±400
±400 — 1Ω- 9.1Ω
±250 6.8KΩ- 1MΩ6.8KΩ- 1MΩ
1/32W (.03W)
RK73B1F
(01005) 15V 30V
400V
(500V***)
200V
(500V***)
±300 10Ω- 6.2K 10Ω- 6.2K
Performance Characteristics
Parameter
Requirement ∆R
Limit Typical Test Method
Resistance
T.C.R.
25°C
+25°C/-55°C and +25°C/+125°C
Within regulated
tolerance
Within specified
T.C.R.
—
—
Overload (Short time) Rated Voltage x 2.5 for 5 seconds
(2B: Rated Voltage x 2 for 5 seconds)
±2% ±1%: 1F
±0.5%: Another
Resistance to Solder Heat 260°C ± 5°C, 10 seconds ± 1 second
±1%, ±3%* ±0.75%, ±1%,
±0.5%**
Rapid Change of Temperature -55°C (30 minutes), +125°C (30 minutes), 100 cycles
±1%: 1F
±0.5%: Another
±0.5%: 1F
±0.3%: Another
Moisture Resistance 40°C ± 2°C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
±2%: 1J, 2A, 2B
±3%: Another
±0.75%: 1J, 2A,
2B; ±1.5%
1F, ±0.5%: Another
Endurance at 70°C 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
±2%: 1J, 2A, 2B
±3%: Another
±0.75%: 1J, 2A, 2B
±1%: Another
High Temperature Exposure +125°C, 1000 hours: 1F, 1H
+155°C, 1000 hours: 1E, 1J, 2A, 2B, 2E, W2H, W3A
±1% ±0.5%: 1F
±0.3%: Another
*±1%: 1F~W3A (10Ω≤R≤1MΩ); ±3%: 1H~W3A (R<10Ω, R>1MΩ)
** ±0.75%: 1F, 1H (10Ω≤R≤1MΩ); ±1%: 1J ~W3A (R<10Ω, R>1MΩ); ±0.5%: Another
environmental applications
For Surface Temperature Rise Graph see Terms & Definitions. Additional environmental applications can also be found at www.koaspeer.com
