Datasheet

Lead (Pb)-Free Professional Leaded Resistors
www.vishay.com For technical questions contact: [e-mail]
Document Number: 28724
30 Revision: 20-Sep-05
MRS16, MRS25
Vishay BCcomponents
FEATURES
• Professional resistors in small outlines
• Low noise.
• Lead (Pb)-free solder contacts
• Pure tin plating provides compatibility with lead (Pb)-free
and lead containing soldering processes
• Compatible with “Restriction of the use of Hazardous
Substances” (RoHS) directive 2002/95/EC (issue 2004)
APPLICATIONS
• All general purpose applications.
DESCRIPTION
A homogeneous film of metal alloy is deposited on a high
grade ceramic body. After a helical groove has been cut in
the resistive layer, tinned connecting wires of electrolytic
copper are welded to the end-caps. The resistors are coated
with lacquer which provides electrical, mechanical, and
climatic protection. Four or five colour code rings designate
the resistance value and tolerance according to IEC 60 062.
The resistors are completely lead (Pb)-free, the pure tin
plating provides compatibility with lead (Pb)-free and
lead-containing soldering processes.
Suitable replacements for MRS16 and MRS25 are the
MBA 0204 and MBB 0207 professional.
TECHNICAL SPECIFICATIONS
DESCRIPTION
VALUE
MRS16 MRS25
Resistance range 4.99 Ω to1MΩ 1 Ω to 10 MΩ
Resistance tolerance and series ± 1 %; E24/E96 series
Maximum dissipation at T
amb
=70°C 0.4 W 0.6 W
Thermal resistance (R
th
) 170 K/W 150 K/W
Temperature coefficient ± 50 ppm/K
Maximum permissible voltage (DC or RMS) 200 V 350 V
Basic specifications IEC 60115-1 and 60115-2
Climatic category (IEC 60068) 55/155/56
Max. resistance change for resistance range,
load:
R ≤ 100 kΩ± (0.5 % + 0.05 Ω) ± (0.5 % + 0.05 Ω)
R > 100 kΩ± (1 % + 0.05 Ω) ± (0.5 % + 0.05 Ω)
climatic tests:
R ≤ 100 kΩ± (0.5 % + 0.05 Ω) ± (0.5 % + 0.05 Ω)
R > 100 kΩ± (1 % + 0.05 Ω) ± (0.5 % + 0.05 Ω)
soldering:
R ≤ 100 kΩ± (0.1 % + 0.05 Ω) ± (0.1 % + 0.05 Ω)
R > 100 kΩ± (0.25 % + 0.05 Ω) ± (0.1 % + 0.05 Ω)
short time overload ± (0.25 % + 0.05 Ω) ± (0.25 % + 0.05 Ω)
PACKING
MODEL
REEL BOX
PIECES/REEL CODE PIECES/BOX CODE
MRS16 5 000 RP
1 000
5 000
C1
CT
MRS25 5 000 RP
1 000
5 000
C1
CT