MRS16, MRS25

Vishay BCcomponents
Lead (Pb)-Free Professional Leaded Resistors

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 The resistors are completely lead (Pb)-free, the pure tin
grade ceramic body. After a helical groove has been cut in plating provides compatibility with lead (Pb)-free and
the resistive layer, tinned connecting wires of electrolytic lead-containing soldering processes.
copper are welded to the end-caps. The resistors are coated
with lacquer which provides electrical, mechanical, and Suitable replacements for MRS16 and MRS25 are the
climatic protection. Four or five colour code rings designate MBA 0204 and MBB 0207 professional.
the resistance value and tolerance according to IEC 60 062.

TECHNICAL SPECIFICATIONS
VALUE
DESCRIPTION
MRS16 MRS25
Resistance range 4.99 Ω to 1 MΩ 1 Ω to 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,
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
REEL BOX
MODEL
PIECES/REEL CODE PIECES/BOX CODE
MRS16 5 000 RP 1 000 C1
5 000 CT
MRS25 5 000 RP 1 000 C1
5 000 CT

www.vishay.com For technical questions contact: ff3cresistors@vishay.com Document Number: 28724

30 Revision: 20-Sep-05
 MRS16, MRS25
Lead (Pb)-Free Professional Leaded Resistors Vishay BCcomponents

DIMENSIONS
L D

DIMENSIONS - leaded resistor types, mass and relevant physical dimensions

Dmax Lmax dnom Mmin MASS
TYPE
(mm) (mm) (mm) (mm) (mg)
MRS16 1.6 3.6 0.5 5.0 125
MRS25 2.5 6.5 0.6 10.0 220

12NC INFORMATION Last Digit of 12NC Indicating Resistance Decade

• The resistors have a 12-digit numeric code starting with RESISTANCE DECADE LAST DIGIT
2322 15. 1 Ω to 9.76 Ω 8
10 Ω to 97.6 Ω 9
• The subsequent 2 digits indicate the resistor type and 100 Ω to 976 Ω 1
packaging; see the 12NC Ordering Code table. 1 kΩ to 9.76 kΩ 2
• The remaining 4 digits indicate the resistance value: 10 kΩ to 97.6 kΩ 3
100 kΩ to 976 kΩ 4
– The first 3 digits indicate the resistance value. 1 MΩ to 9.76 MΩ 5
– The last digit indicates the resistance decade in 10 MΩ 6
accordance with the 12NC Indicating Resistance Decade 12NC Example
table. The 12NC of a MRS16 resistor, value 750 Ω, on a bandolier
of 1000 units in ammopack is: 2322 157 17501.

12NC - resistors type and packing

ORDERING CODE 2322 15. .....
BANDOLIER IN AMMOPACK BANDOLIER ON REEL
TYPE
1000 5000 5000
UNITS UNITS UNITS
MRS16 7 1.... 7 2.... 7 3....
MRS25 6 1.... 6 2.... 6 3....

PART NUMBER
PART NUMBER: MRS16000C5009FCT
M R S 1 6 0 0 0 C 5 0 0 9 F C T 0 0

MODEL/SIZE SPECIAL CHARACTER TC VALUE TOLERANCE PACKING SPECIAL

MRS1600 0 = neutral C = ± 50 ppm/K 3 digit value F=±1% RP up to 2 digits
MRS2500 1 digit multiplier CT 00 = standard
MULTIPLIER C1
7 = *10-3 2 = *102
8 = *10-2 3 = *103
9 = *10-1 4 = *104
0 = *100 5 = *105
1 = *101 6 = *106

NOTE: Products can be ordered using either the 12NC or the PART NUMBER. The PART NUMBER is shown to facilitate the introduction of a
unified part numbering system. Currently, this PART NUMBER is applicable in the Americas only.

Document Number: 28724 For technical questions contact: ff3cresistors@vishay.com www.vishay.com

Revision: 20-Sep-05 31