SEI Electronics - Company Profile
•
A Little History . . .
SEI Electronics started manufacturing resistors in 1928,
as part of the Stackpole Carbon Company in St. Mary’s
Pennsylvania. To this day, SEI continues to focus on
resistor products – and nothing else.
In 1986, the senior managers of Stackpole’s resistor
business bought the resistor operations from the Stackpole
Corporation and established a separate company under the
name Stackpole Electronics. Following a short transitional
period, the name of the company was changed to SEI
Electronics, Inc. to further establish a clearly independent
identity.
In 1989, SEI strengthened its manufacturing base by
becoming formally affiliated with Akahane Electronics in
Japan, which has (resistor) manufacturing plants in Japan,
Taiwan and mainland China. Today SEI is one of the
largest exclusive resistor suppliers in the world, with
headquarters in Raleigh, North Carolina and a large
distribution facility and customer service center in El Paso,
Texas. In addition, SEI is in the process of building a solid
global presence with a new distribution center in Toronto
(adding to our existing facility in Singapore).
SEI’s products are used in virtually every segment of the
electronics market – including computers and computer
peripherals, telecommunications, automotive, consumer
electronics, industrial controls, medical electronics, and
measurement and testing equipment. The vast majority of
these customers purchase products through SEI’s network
of national and regional electronics distributors. SEI also
sells directly to a select group of original equipment
manufacturers (OEM’s) and to a growing base of contract
electronics manufacturers (CEM’s). Field sales activities
are managed by SEI’s sales staff and supported by an
experienced group of sales representatives throughout
North America.
•
Great Products, Great Quality
We also take pride in our ability to support more
specialized products, including our line of ultra-precision
metal film resistors. Our focus on resistors allows us to
offer inventory and short lead-time programs on these
unique products when others cannot (or are unwilling to do
so). And in case you’re wondering, we are ISO 9002
certified and we’re in the process of pursuing QS 9000
registration.
•
Superior Service
We are proud of the fact that our distributors tell us that
SEI is the best, most service-oriented supplier in the
industry. We’ve earned this reputation by listening to our
customers’ needs, and then working very hard at every
aspect of our business to address those needs. SEI realizes
that success rarely happens by accident, and for that reason,
there are a number of well-designed programs behind every
“ yes” we say to customers. One example is our extensive
inventory (over 2 billion resistors in stock) of the products
that we know the market demands, supported by the
shortest manufacturing lead-times in the industry. We add
to the effectiveness of our inventory by putting the systems
and people in place to process and ship “same day” orders
with ease. We realize that the market demands products
“ off the shelf” , and we deliver, every day.
•
Leading Edge Technology for Our Customers
SEI specializes in fixed resistors, and because of our
specialization, we are able to supply an extensive range of
surface mount and axial-leaded resistor products. We have
significant market share in all of the “high demand” fixed
resistor products, including Thick Film Chip, Thick Film
Chip Arrays, Carbon Film, Metal Film, and Metal Oxide
resistors. In addition, SEI is the only active supplier of
Carbon Composition resistors remaining in North America.
And now SEI is changing the way engineers and buyers
of resistors do business by providing the first truly
functional WEB site in the industry. We were not satisfied
with a web site that simply told a marketing story; we
wanted one that provided real business tools. As a result,
our customers can now do stock checks 24 hours a day, can
access purchase order details right down to who signed for
the shipment, and can review shipment schedules to
guarantee that the products on order are exactly what
production needs. Engineers can access product
specifications fast, without having to click through a maze
of pages of unimportant data. This is how the web should
work! Check it out at www.seielect.com.
When we look at the combination of everything we
offer, we often refer to it as the ResistorPlus Program
because we supply resistors plus all the service and support
needed to effectively manage the supply chain. Give us a
call today and see how we can make your life easier by
servicing all of your resistor needs – no hassles, no
problems. SEI Electronics, your primary source for quality
resistor products.
SEI Electronics Inc.
•
P.O. Box 58789
•
Raleigh, NC 27658-8789
•
Telephone: (919) 850-9500
•
FAX: (919) 850-9504
Toll Free: (888) SEI-SEI-SEI
•
www.seielect.com
•
email: marketing@seielect.com
•
ISO 9002 Registered
Rev. 07/98
TABLE OF CONTENTS
A – Chip Resistors & Arrays
Thick Film Chip Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High Value Chip Resistors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thick Film Trimmable Chip Resistors. . . . . . . . . . . . . . . . . . . . . . . . .
Thin Film Chip Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Precision Thick Film Chip Resistors . . . . . . . . . . . . . . . . . . . . . . . . . .
Surface Mount Metal Element Resistors . . . . . . . . . . . . . . . . . . . . . . .
Surface Mount Wirewound Resistors . . . . . . . . . . . . . . . . . . . . . . . . .
Chip Resistor Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chip Resistor Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RMC Series . . . . . . . . . . . . . . . . . . . . .
HMC Series . . . . . . . . . . . . . . . . . . . . .
FCR Series. . . . . . . . . . . . . . . . . . . . . .
RNC Series . . . . . . . . . . . . . . . . . . . . .
RGC Series . . . . . . . . . . . . . . . . . . . . .
SRL Series. . . . . . . . . . . . . . . . . . . . . .
SRW Series . . . . . . . . . . . . . . . . . . . . .
RAC Series . . . . . . . . . . . . . . . . . . . . .
RAV Series . . . . . . . . . . . . . . . . . . . . .
A-1/4
A-5
A-6
A-7/8
A-9/10
A-11/12
A-13/14
A-15/16
A-17/18
B – SIP Networks
Thick Film Resistor Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LC & HC Series . . . . . . . . . . . . . . . . . B-1/2
Thick Film Resistor Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MC Series . . . . . . . . . . . . . . . . . . . . . . B-3/4
C – Metal Resistors
Metal Film Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RN Series. . . . . . . . . . . . . . . . . . . . . . .
Metal Film Mini Series Resistors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . RNM Series . . . . . . . . . . . . . . . . . . . . .
Metal Film Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MP Series . . . . . . . . . . . . . . . . . . . . . .
Low Value Metal Film Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LV Series. . . . . . . . . . . . . . . . . . . . . . .
Fusing Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FRN Series . . . . . . . . . . . . . . . . . . . . .
Metal Film Resistor Performance Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Metal Oxide Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RS Series . . . . . . . . . . . . . . . . . . . . . . .
Metal Oxide Mini Series Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . RSM Series . . . . . . . . . . . . . . . . . . . . .
High Resistance Metal Oxide Mini Resistors . . . . . . . . . . . . . . . . . . . RLFS Series . . . . . . . . . . . . . . . . . . . .
Metal Oxide Resistor Performance Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Resistance Metal-Alloy Mini Resistors. . . . . . . . . . . . . . . . . . . . RMF Series . . . . . . . . . . . . . . . . . . . . .
High Resistance Metal (Glaze) Resistors. . . . . . . . . . . . . . . . . . . . . . . RMG Series . . . . . . . . . . . . . . . . . . . . .
Pulse Metal (Glaze) Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CRMG Series . . . . . . . . . . . . . . . . . . .
Jumper Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . JW Series. . . . . . . . . . . . . . . . . . . . . . .
Zero-Ohm Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CD Series. . . . . . . . . . . . . . . . . . . . . . .
C-1
C-2
C-3
C-4
C-5
C-6
C-7
C-8
C-9
C-10
C-11
C-12
C-13
C-14
C-14
D – Carbon Resistors
Carbon Film Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CF Series . . . . . . . . . . . . . . . . . . . . . . .
Carbon Film Mini Series Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . CFM Series . . . . . . . . . . . . . . . . . . . . .
Carbon Film Resistor Performance Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Carbon Composition Resistors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RC Series. . . . . . . . . . . . . . . . . . . . . . .
D-1
D-2
D-3/4
D-5/6
E – Wirewound Resistors
Wirewound Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . WRF Series . . . . . . . . . . . . . . . . . . . . . E-1/2
Wirewound Ceramic Resistors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NSP1 Series. . . . . . . . . . . . . . . . . . . . . E-3
Vertical Mount Ceramic Wirewound Resistors. . . . . . . . . . . . . . . . . . NSM Series . . . . . . . . . . . . . . . . . . . . . E-4
F – Packaging & Technical Information
Axial Lead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radial Lead. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chip Resistors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead Forming Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Product Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Resistor Selection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F-1
F-2
F-3
F-4
F-5/6
F-7/8
SEI Electronics Inc.
•
P.O. Box 58789
•
Raleigh, NC 27658-8789
•
Telephone: (919) 850-9500
•
FAX: (919) 850-9504
Toll Free: (888) SEI-SEI-SEI
•
www.seielect.com
•
email: marketing@seielect.com
•
ISO 9002 Registered
Rev. 07/98
Page A-1
Thick Film Chip Resistors
SEI
Type RMC
•
•
•
•
•
Surface Mount Devices (SMD)
Tolerances of
±1%
and
±5%
Temperature Coefficients as Low as
±100ppm/°C
Precision Performance – Space Saving Construction
Available from 0.02 ohm to 20 megohms
PERFORMANCE CHARACTERISTICS (TESTED PER MIL-STD-202)
ELECTRICAL(Operating Temperature Range: -55°C to +125°C)
TYPE
RMC 1/16S
Package Size
0402
Power Rating
(Watts)
1/16 @ 70°C
1/16
1
@ 70°C
Maximum
Working
Voltage
50V
Maximum
Overload
Voltage
100V
Resistance
Temperature
Coefficient
±350ppm/°C
±200ppm/°C
±200ppm/°C
±350ppm/°C
±200ppm/°C
±350ppm/°C
±100ppm/°C
±350ppm/°C
±200ppm/°C
±350ppm/°C
±350ppm/°C
±100ppm/°C
±350ppm/°C
±350ppm/°C
±200ppm/°C
±500ppm/°C
±350ppm/°C
±100ppm/°C
±350ppm/°C
±350ppm/°C
±200ppm/°C
±350ppm/°C
±100ppm/°C
±350ppm/°C
±200ppm/°C
±100ppm/°C
±350ppm/°C
±200ppm/°C
±100ppm/°C
Resistance
Range
2.2Ω – 9.1Ω
10Ω – 10M
10Ω – 1M
1.0Ω – 9.1Ω
10Ω – 1M
1.1M – 20M
10Ω – 3.24M
0.02Ω – 9.1Ω
10Ω – 1M
1.1M – 20M
1.0Ω – 9.76Ω
10Ω – 1M
1.02M – 3.24M
0.02Ω – 9.1Ω
10Ω – 1M
1.1M – 33M
1.0Ω – 9.76Ω
10Ω – 1M
1.02M – 20M
1.0Ω – 9.1Ω
10Ω – 1M
1.1M – 10M
10Ω – 1M
0.02Ω – 9.1Ω
10Ω – 1M
10Ω – 1M
0.02Ω – 9.1Ω
10Ω – 8.2M
10Ω – 1M
Tolerance
±5%
±5%
±1%
±5%
±5%
±5%
±1%
±5%
±5%
±5%
±1%
±1%
±1%
±5%
±5%
±5%
±1%
±1%
±1%
±5%
±5%
±5%
±1%
±5%
±5%
±1%
±5%
±5%
±1%
Current Rating
of Jumper
5
1A max.
RMC 1/16
0603
50V
100V
1A max.
RMC 1/10
0805
1/10
2
@ 70°C
150V
300V
2A max.
RMC 1/8
1206
1/8
3
@ 70°C
200V
400V
2A max.
RMC 1/4
1210
1/4
4
@ 70°C
200V
400V
3A max.
RMC 1/2
2010
1/2 @ 70°C
200V
400V
3A max.
RMC 1
2512
1 @ 70°C
200V
400V
3A max.
DIMENSIONS:
FEATURE
L – Body Length
W – Body Width
H – Body Height
a – Top Termination
b – Bottom Termination
Inches (mm)
RMC 1/10
.078
RMC 1/16S
.039 +.004/-.002 (1.00 +0.10/-0.05)
.020 +.004/-.002 (0.50 +0.10/-0.05)
.014
.063
RMC 1/16
±
.004 (1.60
±
0.10)
±
.004 (0.45
±
0.10)
±
.004 (0.25
±
0.10)
.031 +.006/-.002 (0.80 +0.15/-0.05)
.018
.010
RMC 1/8
.122
±
.002 (0.35
±
0.05)
.008
±
.004 (0.20
±
0.10)
.010 +.008/-.004 (0.25 +0.20/-0.10)
±
.008 (2.00
±
0.20)
.049
±
.008 (1.25
±
0.20)
.018
±
.004 (0.45
±
0.10)
.016
±
.008 (0.40
±
0.20)
.012 +.008/-.004 (0.30 +0.20/-0.10)
±
.004 (3.10
±
0.10)
.061
±
.004 (1.55
±
0.10)
.021 +.004/-.002 (0.55 +0.10/-0.05)
.018
±
.008 (0.45
±
0.20)
.012 +.008/-.004 (0.30 +0.20/-0.10)
.012 +.008/-.004 (0.30 +0.20/-0.10)
FEATURE
L – Body Length
W – Body Width
H – Body Height
a – Top Termination
b – Bottom Termination
.122
.100
RMC 1/4
±
.004 (3.10
±
0.10)
±
.004 (2.55
±
0.10)
±
.008 (0.45
±
0.20)
.197
.098
RMC 1/2
±
.008 (5.00
±
0.20)
±
.008 (2.50
±
0.20)
.021
±
.004 (0.55
±
0.10)
.020
±
.008 (0.50
±
0.20)
.020
±
.008 (0.50
±
0.20)
.248
.124
RMC 1
±
.008 (6.30
±
0.20)
±
.008 (3.15
±
0.20)
.021
±
.004 (0.55
±
0.10)
.020
±
.008 (0.50
±
0.20)
.020
±
.008 (0.50
±
0.20)
.021 +.004/-.002 (0.55 +0.10/-0.05)
.018
.012 +.008/-.004 (0.30 +0.20/-0.10)
SEI Electronics Inc.
•
P.O. Box 58789
•
Raleigh, NC 27658-8789
•
Telephone: (919) 850-9500
•
FAX: (919) 850-9504
Toll Free: (888) SEI-SEI-SEI
•
www.seielect.com
•
email: marketing@seielect.com
•
ISO 9002 Registered
Rev. 07/98
Page A-2
Thick Film Chip Resistors
SEI
Type RMC
PERFORMANCE CHARACTERISTICS
ENVIRONMENTAL
Moisture Resistance, Thermal Shock
Low Temperature Exposure
Load Life
Load Life in Moisture
Vibration
Resistance to Soldering Heat
Solderability
Heat
Adhesion Curing
Resistance
Dry Heat
Terminal
Strength
Pull
Board Bending
Specification Requirement
±(1%
+0.05Ω), No Mechanical Damage
±(3%
+0.1Ω), No Mechanical Damage
<1meg
±(3%
+0.1Ω),
≥1meg ±5%
<1meg
±(3%
+0.1Ω),
≥1meg ±5%
±(1%
+0.05Ω), No Mechanical Damage
±(1%
+0.05Ω), No Mechanical Damage
min. 95% coverage
±(1%
+0.05Ω)
±(3%
+0.1Ω), No Mechanical Damage
±(1%
+0.05Ω), No Mechanical Damage
±(1%
+0.05Ω), No Mechanical Damage
No insulation breakdown
±(1%
+0.05Ω), No evidence of arc
1,000 meg minimum
+0/-100ppm/V (above 1K±)
Tested per EIA J-RC-2690A
-55°C to +125°C, 5 cycles
-55°C, 1,000 hours
70°C, rated voltage, 1.5hr on/0.5hr off, 1000 hrs
40°C, 95% R.H., 1.5hr on/0.5hr off, 1,000 hrs
10-55 Hz, 3 direction, each 2 hours
270°C, 10 seconds
230°C, 3 seconds, flux applied
1
+150°C, 10 minutes
-125°C, 1,000 hours
500G load, 30 seconds
1/45mm bend, 10 seconds
500V, 1 minute
2 /
2
times rated voltage, 5 seconds
500V, 1 minute
Rated voltage & 1/10 times rated voltage
1
Typical
Within
±0.2%
Within
±0.5%
See graph
See graph
Within
±0.1%
See graph
More than 97%
Within
±0.3%
Within
±0.5%
Within
±0.2%
Within
±0.2%
Above 900V
Within
±0.4%
Above 10
6
meg
Within -90ppm/V
Dielectric Withstanding Voltage
Short Time Overload
Insulation Resistance
Voltage Coefficient
Note 1. Maximum solder flow process “Normal” 275°C, 30 seconds or the “SM10” process @ 310°C for 10 seconds.
MATERIALS
Feature
Substrate
Resistive Film
Coating
Terminations
Material
Alumina Porcelain
Ruthenium-Oxide Film
Boro-Silicated Acid Lead Glass
90/10 Tin-Lead (Electrical Plated) over
Nickel (Electrical Plated) over
AG-PD (Silver-Palladium[Glaze Printed])
Remarks (Reference Only)
Purity 96% min.
20 Microns Thick
20 Microns Thick
3 Microns Thick
3 Microns Thick
8 Microns Thick
MARKING
Marking
5% 3-digit
0603*
0805
1206
1210
2010
2512
1% 4-digit
0805
1206
1210
2010
2512
Resistance value in three-digit designation system is marked
on the glasscoat. Illustrated is a resistor of 15KΩ. Four-digit
resistance designation system is applied to RMC 1/8 and E-96
Series. For example, 1502 designated 15KΩ. (The last digit
specifies the number of zeros.)
* For 1%, a 3-digit alpha-numeric
marking system is used. Contact
factory for details.
ORDERING INFORMATION
RMC
1/16
1K
1%
NOTES
1. RMC 1/16 is Dual Rated at 1/10W.
2. RMC 1/10 is Dual Rated at 1/8W.
3. RMC 1/8 is Dual Rated at 1/4W.
4. RMC 1/4 is Dual Rated at 3/4W.
5. Zero ohm (0.05Ω max.) jumper available in all sizes.
Type
Wattage
Resistance
Tolerance
SEI Electronics Inc.
•
P.O. Box 58789
•
Raleigh, NC 27658-8789
•
Telephone: (919) 850-9500
•
FAX: (919) 850-9504
Toll Free: (888) SEI-SEI-SEI
•
www.seielect.com
•
email: marketing@seielect.com
•
ISO 9002 Registered
Rev. 07/98
Page A-3
Thick Film Chip Resistors
SEI
Type RMC
PERFORMANCE CURVES
Power - Temperature Derating
Current Noise
NOTE: RNC is Thin Film (see page A-7)
Load Life in Moisture (1,000 hrs)
Load Life (1,000 hrs)
High Frequency Characteristics
Resistance to Soldering Heat
SEI Electronics Inc.
•
P.O. Box 58789
•
Raleigh, NC 27658-8789
•
Telephone: (919) 850-9500
•
FAX: (919) 850-9504
Toll Free: (888) SEI-SEI-SEI
•
www.seielect.com
•
email: marketing@seielect.com
•
ISO 9002 Registered
Rev. 07/98
