www.vishay.com For technical questions, contact: ff3dresistors@vishay.com Document Number: 28724
32 Revision: 18-Oct-07
MRS16, MRS25
Vishay BCcomponents
Professional Leaded Resistors
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.
Suitable replacements for MRS16 and MRS25 are
MBA/SMA 0204 and MBB/SMA 0207 professional.
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.
TECHNICAL SPECIFICATIONS
DESCRIPTION VALUE
MRS16 MRS25
Resistance range 4.99 Ωto1MΩ1Ωto 10 MΩ
Resistance tolerance and series ± 1 %; E24/E96 series
Maximum dissipation at Tamb =70°C 0.4 W 0.6 W
Thermal resistance (Rth) 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,
ΔR max., after:
load:
R≤100 kΩ± (0.5 % R +0.05Ω) ± (0.5 % R +0.05Ω)
R>100kΩ± (1 % R +0.05Ω) ± (0.5 % R +0.05Ω)
climatic tests:
R≤100 kΩ± (0.5 % R +0.05Ω) ± (0.5 % R +0.05Ω)
R>100kΩ± (1 % R +0.05Ω) ± (0.5 % R +0.05Ω)
soldering:
R≤100 kΩ± (0.1 % R +0.05Ω) ± (0.1 % R +0.05Ω)
R>100kΩ± (0.25 % R +0.05Ω) ± (0.1 % R +0.05Ω)
short time overload ± (0.25 % R +0.05Ω) ± (0.25 % R +0.05Ω)
PACKAGING
MODEL REEL BOX
PIECES/REEL CODE PIECES/BOX CODE
MRS16 5000 RP 1000
5000
C1
CT
MRS25 5000 RP 1000
5000
C1
CT
Document Number: 28724 For technical questions, contact: ff3dresistors@vishay.com www.vishay.com
Revision: 18-Oct-07 33
MRS16, MRS25
Professional Leaded Resistors Vishay BCcomponents
DIMENSIONS
12NC INFORMATION
•The resistors have a 12-digit numeric code starting with
2322 15.
•The subsequent 2 digits indicate the resistor type and
packaging; see the 12NC Ordering Code table.
•The remaining 4 digits indicate the resistance value:
– The first 3 digits indicate the resistance value.
– The last digit indicates the resistance decade in
accordance with the 12NC Indicating Resistance
Decade table.
Last Digit of 12NC Indicating Resistance Decade
12NC Example
The 12NC of a MRS16 resistor, value 750 Ω, on a bandolier
of 1000 units in ammopack is: 2322 157 17501.
Note:
(1) Please refer packaging table.
The PART NUMBER is shown to facilitate the introduction of a unified part numbering system for ordering products.
DIMENSIONS - leaded resistor types, mass and relevant physical dimensions
TYPE Dmax
(mm)
Lmax
(mm)
dnom
(mm)
Mmin
(mm)
MASS
(mg)
MRS16 1.6 3.6 0.5 5.0 125
MRS25 2.5 6.3 0.6 10.0 220
L
d
D
M
RESISTANCE DECADE LAST DIGIT
1 Ωto 9.76 Ω8
10 Ωto 97.6 Ω9
100 Ωto 976 Ω1
1 kΩto 9.76 kΩ2
10 kΩto 97.6 kΩ3
100 kΩto 976 kΩ4
1 MΩto 9.76 MΩ5
10 MΩ6
12NC - resistors type and packaging
TYPE
ORDERING CODE 2322 15. .....
BANDOLIER IN AMMOPACK BANDOLIER ON REEL
1000 UNITS 5000 UNITS 5000 UNITS
MRS16 7 1.... 7 2.... 7 3....
MRS25 6 1.... 6 2.... 6 3....
PART NUMBER AND PRODUCT DESCRIPTION
PART NUMBER: MRS16000C5119FCT
MRS16000C5119FCT00
MODEL/SIZE SPECIAL CHARACTER TCR VALUE TOLERANCE PACKAGING SPECIAL
MRS1600
MRS2500
0 = neutral
C =
± 50 ppm/K
3 digit value
1 digit multiplier
MULTIPLIER
F = ± 1 % RP
CT
C1
up to 2 digits
00 = standard
7 = *10-3
8 = *10-2
9 = *10-1
0 = *100
1 = *101
2 = *102
3 = *103
4 = *104
5 = *105
6 = *106
PRODUCT DESCRIPTION: MRS 16-50 1% CT 51R1
MRS16 50 1 % CT 51R1
MODEL/SIZE TCR TOLERANCE PAC KAG IN G (1) RESISTANCE VALUE
MRS16
MRS25
± 50 ppm/K ± 1 %
RP
CT
C1
51R1 = 51.1 Ω
1K = 1 kΩ
Legal Disclaimer Notice
Vishay
Document Number: 91000 www.vishay.com
Revision: 08-Apr-05 1
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
