MODELS SMA and OMA
Metal Film Resistors
Semi-Precision, Zero Ohm Jumpers (OMA)
FEATURES
•Leads are electroplated, high purity copper
•Dual rated parts provide high density board mounting
• Temperature coefficient for SMA 0207S, ± 1% is ± 50PPM/°C
•Green, multilayer liquid epoxy system provides excellent moisture and
mechanical protection
STANDARD ELECTRICAL SPECIFICATIONS
WATTAGE RATING
MODEL
SMA 0204
SMA 0207S
SMA 0207S
SMA 0309S
SMA 0309S
OMA 0207
OMA 0204
DUAL
DIMENSIONAL CONFIGURATIONS [Numbers in brackets indicate millimeters]
* 1000 hours ∆R for Dual Rating is ± 1%. ** Resistance Values: 1 ohm to 10 ohm ∆R ± (2.5% + 0.05 ohm). 1 Megohm to 5.1 Megohm ∆R ± (1% + 0.05 ohm).
ENVIRONMENTAL PERFORMANCE
MAXIMUM ∆R
TEST
Thermal Shock
Short Time Overload
Low Temperature Operation
Moisture Resistance
Shock
Vibration
Load Life (1000 hours standard rating)
Terminal Strength
Dielectric Withholding Voltage
Effect Solder Heat
TEMPERATURE
COEFFICIENT
PPM/°C
100
50
100
100
100
STANDARD
@ + 70°C
1/8
1/4
1/4
1/2
1/2
@ + 125°C
1/10
1/8
1/8
1/4
1/4
@ + 70°C
1/2
1/2
1/2
1
1
VOLTAGE
RATING
200
300
300
350
350
RESISTANCE
RANGE
(Ohms)
1 - 1M
1 - 5.1M
1 - 5.1M
1 - 2.21M
1 - 5.1M
STANDARD
TOLERANCE
± 1%, ± 5%
± 1%
± 2%, ± 5%
± 1%
± 2%, ± 5%
(Zero Ohm Jumper)
(Zero Ohm Jumper)
SMA 0204
± 0.25%
± 0.25%
± 0.25%
± 1.0%
± 0.1%
± 0.1%
± 0.5%*
± 0.1%
± 0.1%
± 0.1%
SMA 0207S
± 0.25%
± 0.25%
± 0.25%
± 0.5%**
± 0.1%
± 0.1%
± 0.5%*
± 0.1%
± 0.1%
± 0.1%
SMA 0207S
± 0.25%
± 0.25%
± 0.25%
± 0.5%**
± 0.1%
± 0.1%
± 0.5%*
± 0.1%
± 0.1%
± 0.1%
SMA 0309S
± 0.25%
± 0.25%
± 0.25%
± 0.5%**
± 0.1%
± 0.1%
± 0.5%*
± 0.1%
± 0.1%
± 0.1%
SMA 0309S
± 0.25%
± 0.25%
± 0.25%
± 0.5%**
± 0.1%
± 0.1%
± 0.5%*
± 0.1%
± 0.1%
± 0.1%
OMA 0207
Zero Ohm
Jumper
OMA 0204
Zero Ohm
Jumper
MODEL
SMA 0204/
OMA 0204
SMA 0207S/
OMA 0207
SMA 0309S
D
.020
[.508]
.024
[.610]
.026
[.660]
C
.160 [4.06]
(Max.)
.281
[7.14]
.375
[9.53]
A
.142 ± .010
[3.61 ± .254]
.235 ± .020
[5.97 ± .508]
.303 ± .020
[7.70 ± .508]
B
.071 [1.80]
(Max.)
.090 ± .008
[2.29 ± .203]
.110 ± .008
[2.79 ± .203]
A
C
1.10 [27.94]
Min.
D
B
Vishay Dale 2300 Riverside Blvd., Norfolk, NE 68701-2242 • Phone (402) 371-0080 • Fax 402-644-4206 • Internet www.vishay.com
Major Vishay Brands Dale • Draloric • Foil Resistors • Measurements Group • Roederstein • Sfernice • Sprague • Thin Film • Vitramon
MODELS SMA and OMA
Manufactured in Germany
PART MARKING
Note: OMA 0204 and OMA 0207 zero ohm type resistors are marked with a single black color band. All band widths and spacing shown are for reference only.
± 2.5% ToleranceCommercial
1, 2, 4, 5
Commercial ± 1.0% Tolerance
1, 2, 3, 4, 5
DERATING
For Zero Ohm Resistors, OMA 0204 or OMA 0207 is sufficient callout.
SMA
MODEL ± 1%
TOLERANCE
± 1%
± 2%
± 5%
1. 1st Significant Figure
2. 2nd Significant Figure
3. 3rd Significant Figure
4. Multiplier
5. Tolerance
100
80
60
40
20
0 50 70 90 110 130 150 170
AMBIENT TEMP. DEG. CENTIGRADE
% OF RATED POWER
+ 70°C+ 165°C
HOW TO ORDER
100k
RESISTANCE
100k = 100,000Ω
0207S
SIZE
Vishay Dale 2300 Riverside Blvd., Norfolk, NE 68701-2242 • Phone (402) 371-0080 • Fax 402-644-4206 • Internet www.vishay.com
Major Vishay Brands Dale • Draloric • Foil Resistors • Measurements Group • Roederstein • Sfernice • Sprague • Thin Film • Vitramon
