SM/SMH Series
Surface Mount Wirewound Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Features:
•
•
•
•
•
High temperature molded encapsulation
Flex termination for absorbing thermal expansion
All welded construction
Non-inductive winding available (contact Stackpole with
requirements)
RoHS compliant / lead-free
Electrical Specifications
Type / Code
Power Rating
(Watts)
@ 70ºC
1W
Maximum
Working
Voltage
25V
Dielectric
Withstanding
Voltage
>500V
Resistance
Temperature
Coefficient
±75 ppm/ºC
±100 ppm/ºC
±20 ppm/ºC
±75 ppm/ºC
±100 ppm/ºC
±20 ppm/ºC
±75 ppm/ºC
±100 ppm/ºC
±20 ppm/ºC
±75 ppm/ºC
±75 ppm/ºC
±75 ppm/ºC
±100 ppm/ºC
±20 ppm/ºC
±75 ppm/ºC
±100 ppm/ºC
±20 ppm/ºC
Ohmic Range (Ω) and Tolerance
0.1%
0.5%
-
3 - 10
1%
1 - 10
10.2 - 400
5%
0.01 - 0.098
0.1 - 10
11 - 400
SM2615
SM4124
2W
50V
>500V
SM4527
SM4527…-LP
SMH4527
SM6227
2W
2W
3W
3W
60V
60V
60V
100V
>500V
>500V
>500V
>500V
5 - 10
10.1 - 400
-
5 - 10
3 - 10
10.1 - 1K
-
5 - 10
3 -10
10.1 - 1K
-
-
-
10.1 - 3K
-
10.1 - 5K
SM8035
4W
100V
>500V
0.05 - 0.098
0.01 - 0.098
0.1 - 10
10.2 - 1K
11 - 1K
0.05 - 0.098
0.01 - 0.098
0.1 - 10
10.2 - 1K
11 - 1K
0.01 - 0.05
0.01 - 0.05
0.05 - 0.098
1 - 10
10.2 - 3K
11 - 3K
0.05 - 0.098
1 - 10
10.2 - 5K
11 - 5K
Performance Characteristics
Test
Moisture Resistance
Thermal Shock
Load Life @ 70ºC - 1,000 hrs.
Resistance to Soldering Heat
Terminal Strength
Dielectric Withstanding Voltage
Short Time Overload
Operating Temperature Range: -55ºC to +275ºC
Test Specifications
±1%
±0.5%
±1%
±1
±0.5%
±0.001% / V
±0.2%
Power Derating Curve:
Percent Rated Power (%)
-55ºC
70ºC
100
80
60
40
20
0
-60
-40
0
40
80
120
160
200
240
280
320
275
°C
Ambient Temperature (ºC)
Rev Date: 12/21/2016
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
1
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marketing@seielect.com
SM/SMH Series
Surface Mount Wirewound Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Mechanical Specifications
A
Type / Code
Body
Length
SM2615
SM4124
SM4527
SM4527…-LP
SMH4527
SM6227
SM8035
0.260 ± 0.015
6.60 ± 0.38
0.410 ± 0.015
10.41 ± 0.38
0.455 ± 0.015
11.56 ± 0.38
0.455 ± 0.015
11.56 ± 0.38
0.455 ± 0.015
11.56 ± 0.38
0.625 ± 0.015
15.88 ± 0.38
0.800 ± 0.015
20.32 ± 0.38
B
Total
Length
0.280 ± 0.032
7.11 ± 0.81
0.430 ± 0.032
10.92 ± 0.81
0.475 ± 0.032
12.07 ± 0.81
0.475 ± 0.032
12.07 ± 0.81
0.475 ± 0.032
12.07 ± 0.81
0.645 ± 0.032
16.38 ± 0.81
0.825 ± 0.032
20.96 ± 0.81
C
Body
Height
0.140 ± 0.015
3.56 ± 0.38
0.180 ± 0.015
4.57 ± 0.38
0.215 ± 0.015
5.46 ± 0.38
0.150 ± 0.015
3.81 ± 0.38
0.150 ± 0.015
3.81 ± 0.38
0.250 ± 0.015
6.35 ± 0.38
0.362 ± 0.015
9.19 ± 0.38
D
Body
Width
0.150 ± 0.015
3.81 ± 0.38
0.240 ± 0.015
6.10 ± 0.38
0.270 ± 0.015
6.86 ± 0.38
0.270 ± 0.015
6.86 ± 0.38
0.270 ± 0.015
6.86 ± 0.38
0.275 ± 0.015
6.99 ± 0.38
0.350 ± 0.015
8.89 ± 0.38
E
Termination
Width
0.100 ± 0.015
2.54 ± 0.38
0.122 ± 0.015
3.10 ± 0.38
0.122 ± 0.015
3.10 ± 0.38
0.122 ± 0.015
3.10 ± 0.38
0.122 ± 0.015
3.10 ± 0.38
0.122 ± 0.015
3.10 ± 0.38
0.122 ± 0.015
3.10 ± 0.38
F
Termination
Length
0.090 ± 0.015
2.29 ± 0.38
0.090 ± 0.015
2.29 ± 0.38
0.105 ± 0.015
2.67 ± 0.38
0.105 ± 0.015
2.67 ± 0.38
0.105 ± 0.015
2.67 ± 0.38
0.130 ± 0.015
3.30 ± 0.38
0.122 ± 0.015
3.10 ± 0.38
0.138
3.51
0.181
4.60
0.169
4.29
0.169
4.29
0.169
4.29
0.236
5.99
0.340
8.64
0.130
3.30
0.157
3.99
0.157
3.99
0.157
3.99
0.157
3.99
0.157
3.99
0.157
3.99
0.350
8.89
0.583
14.81
0.587
14.91
0.587
14.91
0.587
14.91
0.850
21.59
0.950
24.13
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
W
H
L
Unit
SM Series Hot Spot Temperature
Rev Date: 12/21/2016
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
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marketing@seielect.com
SM/SMH Series
Surface Mount Wirewound Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
RoHS Compliance
Stackpole Electronics has joined the worldwide effort to reduce the amount of lead in electronic components and to
meet the various regulatory requirements now prevalent, such as the European Union’s directive regarding “Restrictions
on Hazardous Substances” (RoHS 2). As part of this ongoing program, we periodically update this document with the
status regarding the availability of our compliant components. All our standard part numbers are compliant to EU
Directive 2011/65/EU of the European Parliament.
RoHS Compliance Status
Standard
Product
Series
Description
Package /
Termination
Type
Standard
Series
RoHS
Compliant
YES
Lead-Free Termination
Composition
Lead-Free
Mfg. Effective Date
(Std Product Series)
Lead-Free
Effective Date
Code
(YY/WW)
06/01
SM
Surface Mount - General Purpose and
Precision Wirewound Resistor
SMD
100% Matte Sn
Jan-06
“Conflict Metals” Commitment
We at Stackpole Electronics, Inc. are joined with our industry in opposing the use of metals mined in the “conflict region”
of the Eastern Democratic Republic of the Congo (DRC) in our products. Recognizing that the supply chain for metals
used in the electronics industry is very complex, we work closely with our own suppliers to verify to the extent possible
that the materials and products we supply do not contain metals sourced from this conflict region. As such, we are in
compliance with the requirements of Dodd-Frank Act regarding Conflict Minerals.
Compliance to “REACH”
We certify that all passive components supplied by Stackpole Electronics, Inc. are SVHC (Substances of Very High
Concern) free and compliant with the requirements of EU Directive 1907/2006/EC, “The Registration, Evaluation,
Authorization and Restriction of Chemicals”, otherwise referred to as REACH. Contact us for complete list of REACH
Substance Candidate List.
Environmental Policy
It is the policy of Stackpole Electronics, Inc. (SEI) to protect the environment in all localities in which we operate. We
continually strive to improve our effect on the environment. We observe all applicable laws and regulations regarding
the protection of our environment and all requests related to the environment to which we have agreed. We are
committed to the prevention of all forms of pollution.
How to Order
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S
M
4
1
2
4
F
T
1
K
0
0
-
L
P
Product Series
SM
Standard
SMH High Power
NSM Non-inductive
Size
Power
2615
1W
4124
2W
2W
4527
(H)4527 3W
6227
3W
8035
4W
Tolerance
Code
Tol
B
0.1%
D
0.5%
F
1%
J
5%
Code
T
Packaging
Size
Quantity
2615
1,500
4527(-LP), H4527 1,200
13" Reel
4527
900
Plastic Tape
4124
800
6227
750
8035
350
Description
Resistance Value
Four characters with the
multiplier used as the
decimal holder.
"L" used as multiplier
-3
of 10 for any value
under 0.1 ohm.
0.01 ohm = 10L0
0.1 ohm = R100
1 Kohm = 1K00
Code
(blank)
-LP
Special
Description
Standard
Low Profile
Rev Date: 12/21/2016
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
3
www.seielect.com
marketing@seielect.com
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