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Robust mechanical strength and high power rating in VISHAY RSSD25138C33R0JB04 industrial wirewound resistors

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Robust mechanical strength and high power rating in VISHAY RSSD25138C33R0JB04 industrial wirewound resistors

Resistance : 33Ω

Power(Watts) : 140W

Tolerance : ±5%

Description : 33Ω 140W ±5% Through Hole Adjustable Power Resistor RoHS

Mfr. Part # : RSSD25138C33R0JB04

Model Number : RSSD25138C33R0JB04

Package : Through Hole

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Product Overview

The Vishay Sfernice RSSD series offers industrial high-power vitreous tubular wirewound resistors with adjustable capabilities. Designed for demanding applications, these resistors provide high power ratings from 16 W to 600 W at 25 C, excellent withstanding of thermal shock, and robust mechanical strength. They are particularly noted for their ability to withstand heavy transient and severe shock and vibration conditions, complementing lower ohmic values. Standard RSSD resistors feature a single adjustable collar for tapping, with options for multiple tappings on larger models.

Product Attributes

Brand: Vishay Sfernice
Material: WELDED STAINLESS STEEL 304 L COLLARS, SCREWED STAINLESS STEEL 304 L COLLARS
Resistive Element: Nickel alloy wire
Mechanical Protection: Vishay Sfernice special cement
Certifications: NF F 16101, 10/1988 and 16102, 04/1992: Not applicable
Material Categorization: Refer to www.vishay.com/doc?99912 for compliance definitions.

Technical Specifications

Model	Size	Resistance Range ()	Rated Power P25 C (W)	Tolerance (%)	Approx. Average Unit Weight (g)	Dimensions (mm) L x	Max. Number of Additional Tapping	Reduction % of Ohmic Value by Tapping
RSSD 8 x 34	0834	0.12 to 10	16	5, 10, 20	10	34 x 8	0	23
RSSD 10 x 50	1050	0.12 to 22	25	5, 10, 20	22	50 x 10	1	21
RSSD 13 x 70	1370	0.12 to 43	42	5, 10, 20	38	70 x 13	1	14
RSSD 16 x 94	1694	0.33 to 75	70	5, 10, 20	55	94 x 16	1	11
RSSD 20 x 117	20117	0.22 to 100	100	5, 10, 20	80	117 x 20	1	10
RSSD 25 x 138	25138	0.10 to 150	140	5, 10, 20	90	138 x 25	1	8
RSSD 25 x 168	25168	0.12 to 220	200	5, 10, 20	115	168 x 25	2	6.5
RSSD 30 x 250	30250	0.22 to 360	280	5, 10, 20	240	250 x 30	2	6
RSSD 40 x 370	40370	0.47 to 470	450	5, 10, 20	845	370 x 40	4	5.7
RSSD 50 x 373	50373	0.68 to 560	600	5, 10, 20	1270	373 x 50	4	5.7

Performance Tests

Test	Conditions	Requirements	Typical Values and Drifts
Short Time Overload	10 Pr during 5 s	2 %	1 %
Climatic Sequence	-55 C, +200 C, 5 cycles	3 %	1 %
Thermal Shock	Load at 100 % Pr followed by cold -55 C / 15 min	2 % or 0.05	1 %
Load Life	90 / 30 cycle, 1000 h at Pr at +25 C	5 %	5 %

Environmental Specifications

Parameter	Value
Temperature Range	-55 C to +450 C
Climatic Category	-55 C / +200 C / 56 days

2412091029_VISHAY-RSSD25138C33R0JB04_C17694403.pdf

Robust mechanical strength and high power rating in VISHAY RSSD25138C33R0JB04 industrial wirewound resistors Images

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