RSMF21781% datasheet, PDF - EEWORLD Datasheet

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RSMF21781%: DescriptionFixed Resistor, Metal Oxide Film, 2W, 178ohm, 350V, 1% +/-Tol, 200ppm/Cel, Through Hole Mount, AXIAL LEADED; CategoryPassive components The resistor; File Size71KB，2 Pages; ManufacturerSEI(Stackpole Electronics Inc.); Websitehttps://www.seielect.com/; Environmental Compliance

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RSMF21781% Overview

Fixed Resistor, Metal Oxide Film, 2W, 178ohm, 350V, 1% +/-Tol, 200ppm/Cel, Through Hole Mount, AXIAL LEADED

RSMF21781% Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	SEI(Stackpole Electronics Inc.)
package instruction	AXIAL LEADED
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	FLAME PROOF
JESD-609 code	e3
Manufacturer's serial number	RSM
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	200 °C
Minimum operating temperature	-55 °C
Package shape	TUBULAR PACKAGE
method of packing	BULK
Rated power dissipation(P)	2 W
Rated temperature	70 °C
resistance	178 Ω
Resistor type	FIXED RESISTOR
surface mount	NO
technology	METAL OXIDE FILM
Temperature Coefficient	200 ppm/°C
Terminal surface	Matte Tin (Sn)
Terminal shape	WIRE
Tolerance	1%
Operating Voltage	350 V

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Page 26

Metal Oxide Mini Series Resistors

SEI

Type RSM

•

Ideal Substitute Where Size Restraints Apply

•

Low Cost Alternative for Power Carbon Composition

and Wirewounds

•

Flameproof – Meets Overload Test of UL #1412

•

Meets Solvent Test of Method 215 of MIL-STD-202

•

Temperature Coefficient of

±200ppm/°C

•

Green Body Color

•

Coating Meets UL 94V-0

RSM 1/2

1/2 @70°C

200°C

√PR

or 250V

whichever is less

-55°C to +200°C

±5%, ±2%

and

±1%

0.1Ω – 47K (±5%)

0.1Ω – 47K (±2%)

0.1Ω – 47K (±1%)

400 volts RMS

400V

10,000 meg min.

100 meg min.

±1.5%

±1%

±2%

±0.5%

±(0.5%+0.05Ω)

±0.5%

.001%/V

±(0.5%+0.05Ω)

±0.5%

PERFORMANCE CHARACTERISTICS (TESTED PER MIL-R-22684)

ELECTRICAL

Power Rating (Watts)

Derated to 0 Load at

Maximum Working Voltage

Operating Temperature Range

Tolerance

Resistance Range

RSM 1

1 @70°C

200°C

√PR

or 350V

whichever is less

-55°C to +200°C

±5%, ±2%

and

±1%

0.1Ω – 75K (±5%)

0.1Ω – 75K (±2%)

0.1Ω – 75K (±1%)

600 volts RMS

750V

10,000 meg min.

100 meg min.

±1.5%

±1%

±2%

±0.5%

±(0.5%+0.05Ω)

±0.5%

.001%/V

±(0.5%+0.05Ω)

±0.5%

RSM 2

2 @70°C

200°C

√PR

or 350V

whichever is less

-55°C to +200°C

±5%, ±2%

and

±1%

0.1Ω – 100K (±5%)

0.1Ω – 100K (±2%)

0.1Ω – 100K (±1%)

600 volts RMS

750V

10,000 meg min.

100 meg min.

±1.5%

±1%

±2%

±0.5%

±(0.5%+0.05Ω)

±0.5%

.001%/V

±(0.5%+0.05Ω)

±0.5%

RSM 3

3 @70°C

200°C

√PR

or 350V

whichever is less

-55°C to +200°C

±5%, ±2%

and

±1%

0.1Ω – 120K (±5%)

0.1Ω – 120K (±2%)

0.1Ω – 120K (±1%)

600 volts RMS

750V

10,000 meg min.

100 meg min.

±1.5%

±1%

±2%

±0.5%

±(0.5%+0.05Ω)

±0.5%

.001%/V

±(0.5%+0.05Ω)

±0.5%

RSM 5

5 @70°C

200°C

√PR

or 500V

whichever is less

-55°C to +200°C

±5%, ±2%

and

±1%

1Ω – 150K (±5%)

100Ω – 4.99K (±2%)

100Ω – 4.99K (±1%)

800 volts RMS

1000V

10,000 meg min.

100 meg min.

±1.5%

±1%

±2%

±0.5%

±(0.5%+0.05Ω)

±0.5%

.001%/V

±(0.5%+0.05Ω)

±0.5%

Dielectric Withstand Voltage

Maximum Pulse Voltage

Insulation Resistance

(Dry)

(Wet)

Moisture Resistance

Thermal Shock

Load Life @ 70°C — 1,000 hrs

Shock and Vibration

Resistance to Soldering Heat

Terminal Strength

Voltage Coefficient

Short Time Overload

Low Temperature Operation

ENVIRONMENTAL (Operating Temperature Range: -55°C to +200°C)

DIMENSIONS:

FEATURE

A – Lead Length (typ.)

B – Body Length

C – Lead Diameter

D – Body Diameter

Inches (mm)

RSM 2

RSM 3

RSM 5

RSM 1/2

RSM 1

1.10

±.08

(28.0

±2.0)

1.10

±.08

(28.0

±2.0)

1.10

±.08

(28.0

±2.0)

1.50

±.12

(38.0

±3.0)

1.50

±.12

(38.0

±3.0)

.98

±.08

(25.0

±2.0)

.59

±.02

(15.0

±0.5)

.43

±.02

(11.0

±0.5)

.35

±.02

(9.0

±0.5)

.24

±.01

(6.0

±0.3)

.024±.002 (0.60±0.05) .028±.002 (0.70±0.05) .031±.002 (0.80±0.05) .031±.002 (0.80±0.05) .031±.002(0.80±0.05)

.34

±.06

(8.5

±1.5)

.22

±.04

(5.5

±1.0)

.16

±.02

(4.0

±0.5)

.12

±.01

(3.0

±0.3)

.09

±.01

(2.3

±0.2)

ORDERING INFORMATION

RSM

1/2

NOTES

1. SEI Type RSM is smaller than the industry standard.

2. E96 values for 1%, E24 values for 5%

±0.5%

4. After moisture resistance.

5. Available with swaged leads (see page 45).

6. Dimensions are for bulk packaged product only.

Type

Wattage

Resistance

Tolerance

SEI Electronics Inc.

•

P.O. Box 58789

•

Raleigh, NC 27658-8789

•

Telephone: (919) 850-9500

•

FAX: (919) 850-9504

Toll Free: (888) SEI-SEI-SEI

•

www.seielect.com

•

email: marketing@seielect.com

•

ISO 9002 / QS 9000 Registered

Rev. 12/00

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