MNR14
Resistors
Chip resistor networks
MNR14 (1608×4 size)
!Features
1) Convex electrodes
Easy to check the fillet after soldering is finished.
2) Small, light, rectangular 4-chip network
Area ratio is 65% smaller than that of MNR34, while weight ratio has been cut 75%.
3) High-density mounting
Can be mounted even more densely than four 1608 chips (MCR03), and mounting costs are lower.
4) Compatible with a wide range of mounting equipment.
Squared corners make it excellent for mounting using image recognition machines.
5) ROHM resistors have approved ISO-9001 certification.
Design and specifications are subject to change without notice. Carefully check the specification sheet supplied with
the product before using or ordering it.
!Ratings
Item
Rated power
Conditions
Specifications
Power must be derated according to the power derating curve in
Figure 1 when ambient temperature exceeds 70°C.
0.063W (1 / 16W)
at 70°C
POWER LOAD (%)
100
80
60
40
20
0
−55
0
70
100
125
AMBIENT TEMPERATURE (°C)
Fig.1
Rated voltage
The voltage rating is calculated by the following equation. If the value
obtained exceeds the limiting element voltage, the voltage rating
is equal to the maximum operating voltage.
E: Rated voltage (V)
E=
P×R
P: Rated power (W)
R: Nominal resistance (Ω)
Nominal resistance
Operating temperature
Limiting element voltage
See Table 1.
−55°C ∼ +125°C
50V
MNR14
Resistors
!External dimensions (Units : mm)
3.2±0.1
a
∗Marking
b
a : 0.6±0.15
b : 0.4±0.15
B
Material
0.25±0.15
0.3±0.2
1.6±0.1
0
1
∗∗0.8
Nickel-coated secondary electrode
External electrode coated with Sn/Pb or Sn
Alumina substrate
6
2
0
1
2
0
1
2
0
1
∗∗0.8
Thick film of silver for primary electrode
3
5
A'
2
4
2
1
A
Thick dielectric glaze of ruthenium
(only silver used for jumper)
Overcoating
∗∗0.8
B'
0.5±0.1
2
6
Cross section A-A'
3
4
1
5
6
Cross section B-B'
1
∗ Marking may change to the one-character type.
∗∗ Pitch of the upper electrode.
5
!Equivalent circuit
R1
R2
R3
R4
R1=R2=R3=R4
!Packaging
Reel
Taping
P0
P2
φD0
P1
E
F
W
02
04
06
08
06
D
04
B
02
A
08
B0
A0
Heat crimp cover / Tape
Chip network
Thick paper (Underside paper tape) resistors
Square punchout hole
mount
T2
C
(Units: mm)
Label
EIAJ ET-7200A compliant
A
B
C
φ60 +1
0
9 +1.0
0
φ13±0.2
E
A0
B0
8.0±0.3
3.5±0.05
1.75±0.1
1.8±0.1
3.4±0.1
P0
P1
P2
T2
φ1.5 +0.1
0
4.0±0.1
4.0±0.1
2.0±0.05
Max. 1.1
D
0
φ180 −3
F
D0
(Units: mm)
W
