SPEER ELECTRONICS, INC.
TELEPHONE: 814-362-5536 FAX: 814-362-8883
14
SR73 H 2B T 1ROO F
TYPE TEMPCO SIZE CODE PACKAGING NOMINAL RESISTANCE TOLERANCE
H: ± 100 ppm (See Page 7) (See Appendix A) ± 1%: 3 Significant F: ± 1%
K: ± 200 ppm 2A: 0805 T: Punched Paper Figures + Multiplier G: ± 2%
K: ± 500 ppm 2B: 1206 TE: Embossed Plastic ± 2%/5%: J: ± 5%
K: ± 800 ppm 2E: 1210 TDD: 10” Punched Paper 2 Significant Figures
Depending on 2H: 2010 TED: 10” Embossed Plastic + Multiplier
resistance value 3A: 2512 R indicates decimal
point
ORDERING & SPECIFYING INFORMATION*
FLAT CHIP RESISTORS
SR73
LO-OHM 1% AND 5% CURRENT SENSE RESISTORS
FLAT CHIP RESISTOR - LOW OHMIC VALUE
- Thick Film Resistor Element
- Anti-Leaching Nickel Barrier Terminations
- 90/10 Solder Plated Terminations, Standard
- Meets or Exceeds EIA 575, EIA PDP - 100,
MIL - R - 55342F
- White Three or Four Digit Marking on Indigo
Protective Coat.
*Please Note: KSE’s Part Numbers Do Not Contain any Spaces or Hyphens.
FLAT CHIP
RESISTORS
±100 0.1Ω - 9.76Ω
125mW ±200 0.1Ω - 9.1Ω
±500 0.051~0.091
±800 0.030~0.047
±100 0.1Ω - 9.76Ω
250mW ±200 0.1Ω - 9.1Ω
±500 0.056~0.091
±800 0.030~0.051
±100 0.1Ω - 9.76Ω
500mW ±200 0.1Ω - 9.1Ω
±500 0.036~0.043
±800 0.024~0.033
±100 0.1Ω - 9.76Ω
750mW ±200 0.1Ω - 9.1Ω
±500 0.056~0.091
±800 0.033~0.051
±100 0.1Ω - 9.76Ω
1000mW ±200 0.1Ω - 9.1Ω
±500 0.056~0.091
±800 0.039~0.051
STANDARD APPLICATIONS
1.11V 2.79V
1.58V 3.95V
2.23V 5.59V
2.73V 6.84V
3.16V 7.90V
SR73*2A
(0805 size)
SR73*2B
(1206 size)
SR73*2E
(1210 size)
SR73*2H
(2010 size)
SR73*3A
(2512 size)
-55°C
+175°C
PART POWER TCR RESISTANCE RESISTANCE ABSOLUTE MAXIMUM OPERATING
DESIGNATION RATING (ppm/°C) RANGE RANGE MAXIMUM OVERLOAD TEMPERATURE
@70°C MAX (E-96)*** (E-24)*** WORKING VOLTAGE RANGE
(F±1%) (G±2%) (J±5%) VOLTAGE 5 sec. max.
* Indicates TempCo. “H” must be used for 1% tolerance. “K” must be used for 2% and 5% tolerance.
*** See Appendix A for available decade values.
SPEER ELECTRONICS, INC.
TELEPHONE: 814-362-5536 FAX: 814-362-8883
15
ENVIRONMENTAL APPLICATIONS
FLAT CHIP RESISTORS
SR73
LO -OHM 1% & 5% CURRENT SENSE RESISTORS
100
80
60
40
20
20 40 60 80 100 120 140 160 180
70 175
AMBIENT TEMPERATURE
(°C)
DERATING
→
% RATED POWER
125
100
75
50
25
25 50 75 100
% RATED POWER
TEMPERATURE RISE
(°C)
3A
2A
2H
2E
2B
Pulse Limitation Curves Are Available at www.koaspeer.com
PARAMETER MAXIMUM ∆ R TEST METHOD
Thermal Shock ±1.0% MIL-STD-202, Method 107
-55°C ~ +125°C, 100 cycles
Low Temperature ±1.0% MIL - R - 55342 π 4.7.4 1 Hour @ -55°C
Operation followed by 45 minutes of RCWV**
High Temperature ±1.0% MIL - R - 55342 π 4.7.6
Exposure 1000 Hours @ 125°C
Short Time Overload ±2.0% MIL - R - 55342 π 4.7.5
2.5 X RCWV for 5 seconds
Resistance to ±1.0% MIL - R - 55342 π 4.7.7
Solder Heat 260°C for 10 seconds
Terminal Strength-Bend ±1.0% 2A & 2B 5mm,
2E, 2H & 3A 2mm
Moisture Resistance ±2.0% MIL - STD - 202, Method 103
40oC, 90 - 95%RH, 1000 Hours
Life ±2.0% MIL - STD - 202, Method 108 70°C, 1000
Hours @ RCWV, 1.5 Hr ON, 0.5 Hr OFF
MINIMUM
Terminal Adhesion 15 Grams Axial Pull, One Terminal at a Time
Dielectric Withstanding
Voltage
2A
2B
2E 400V MIL - STD - 202, Method 301
2H
3A
Insulation Resistance 10,000 MΩ
** RCWV - Rated Continuous Working Voltage
FLAT CHIP
RESISTORS
