Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Anti-Sulfurated Chip Resistor Array
43
12
8
1
7
2
6
3
5
4
16
1
15
2
14
3
13
4
12
5
11
6
10
7
9
8
E
1
X
2
B
3
U
4
2
5
8
6
4
7
7
8
2
9
J
10
X
11
Thick Film
Chip Resistor
Networks
Size, Construction
InchCode
Product Code
0402 Array
0603 Array
U2
U3
4
8
H
4 Terminal
8 Terminal
16 Terminal
No. of Terminal
The first two digits are significant figures
of resistance value and the third one
denotes the number of zeros following.
Jumper is expressed by R00
Resistance Value
Example : 222 → 2.2 kΩ
Resistance
Tolerance
J
0
±5 %
Jumper
Anti-Sulfuarted
Convex Terminal
Packaging Methods
Code
X
V
Packaging Part No.
Punched Carrier Taping
2 mm pitch, 10,000 pcs.
Punched Carrier Taping
4 mm pitch, 5,000 pcs.
EXBU24,
U28
EXBU2H,
U34, U38
Protective coating
Electrode
(Inner)
Electrode
(Between)
Electrode
(Outer)
Alumina substrate
Thick film
resistive element
Anti-Sulfurated
Chip Resistor Array
Type: EXB U24, U28, U2H,
U34, U38
Explanation of Part Numbers
Features
● High resistance to sulfurization achieved by adopting an Ag-Pd-based inner electrode
● High density
2 resistors in 1.0 mm × 1.0 mm size / 0404 inch size : EXBU24
4 resistors in 2.0 mm × 1.0 mm size / 0804 inch size : EXBU28
8 resistors in 3.8 mm × 1.6 mm size / 1506 inch size : EXBU2H
2 resistors in 1.6 mm × 1.6 mm size / 0606 inch size : EXBU34
4 resistors in 3.2 mm × 1.6 mm size / 1206 inch size : EXBU38
● Improvement of placement effi ciency
Placement effi ciency of Chip Resistor Array is two, four or eight times of the fl at type chip resistor
● Reference Standard…IEC 60115-9, JIS C 5201-9, EIAJ RC-2129
● AEC-Q200 qualifi ed
● RoHS compliant
■ As for Packaging Methods, Land Pattern, Soldering Conditions and Safety Precautions,
Please see Data Files
Schematics
● Isolated type
EXBU2H
EXBU28, U38EXBU24, U34
8 resistors
4 resistors2 resistors
Construction
Apr. 201504
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Anti-Sulfurated Chip Resistor Array
–60 –40 –20 0 20 40 60 80 100 120 140 160 180
0
20
40
60
80
100
70 °C–55 °C
125 °C
Ambient Temperature (°C)
Rated Load (%)
A1
PTP
L
T
L
BB
G
BB
GG
W
W
G
A1 A2
EXBU24, U34 EXBU28, U38
PT
L
G
W
G
BB
A1 A2 EXBU2H
Dimensions in mm (not to scale)
Power Derating Curve
For resistors operated in ambient temperatures above
70 °C, power rating shall be derated in accordance
with the figure on the right.
Ratings
(1) Rated Continuous Working Voltage (RCWV) shall be de ter mined from RCWV=√Power Rating × Resistance Value, or Limiting Element Voltage listed
above, whichever less.
(2) Overload (Short-time Overload) Test Voltage (SOTV) shall be determined from SOTV=2.5 × RCWV or max. Overload Voltage list ed above whichever less.
Item Specifi cations
Resistance Range 10 Ω to 1 MΩ
E24 series
Resistance Tolerance J: ±5 %
Number of
Terminals
U24, U34
4 terminal
U28, U38
8 terminal
U2H
16 element
Number of
Resistors
U24, U34
2 element
U28, U38
4 element
U2H
8 element
Power Rating
at 70 °C
U24, U28, U34, U38
0.063 W/element
U2H 0.063 W/element
(0.25 W/package)
Item Specifi cations
Limiting Element
Voltage(1)
U2H
25 V
U24, U28, U34, U38
50 V
Max. Overload
Voltage (2)
U2H
50 V
U24, U28, U34, U38
100 V
T.C.R. ±200×10-6/°C
Category Temperature Range
–55 °C to 125 °C
Rated
Current
U24, U28, U2H, U34, U38
1 A
Max. Overload
Current
U24, U28, U2H, U34, U38
2 A
Jumper
Array
Part No.
(inch size)
Dimensions (mm)
Ma
ss (Weight)
[g/1000 pcs.]
L W T A1 A2 B P G
EXBU24 (0402×2) 1.00±0.10 1.00±0.10 0.35±0.10 0.40±0.10 — 0.18±0.10 (0.65) 0.25±0.10 1.2
EXBU28 (0402×4) 2.00±0.10 1.00±0.10 0.35±0.10 0.45±0.10 0.35±0.10 0.20±0.10 (0.50) 0.25±0.10 2.0
EXBU2H (0402×8) 3.80±0.10 1.60±0.10 0.45±0.10 0.35±0.10 0.35±0.10 0.30±0.10 (0.50) 0.30±0.10 9.0
EXBU34 (0603×2) 1.60±0.20 1.60±0.15 0.50±0.10 0.65±0.15 — 0.30±0.20 (0.80) 0.30±0.20 3.5
EXBU38 (0603×4) 3.20±0.20 1.60±0.15 0.50±0.10 0.65±0.15 0.45±0.15 0.30±0.20 (0.80) 0.35±0.20 7.0
( ) Reference
Apr. 201504