*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
** Bourns follows the prevailing definition of “halogen free” in the industry. Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less;
(b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.
Specifications are subject to change without notice. Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
WARNING Cancer and Reproductive Harm -
www.P65Warnings.ca.gov
Model
SRF1280A Series - Dual-Winding Shielded Power Inductors
Inductance vs. IDC
SRF1280A-470M
50.0
40.0
600.0
900.0
30.0
20.0
10.0
0.0
0.0
L @ 25 °C
L @ 125 °C
800.0
SRF1280A-681M
L @ 25 °C
L @ 125 °C
1200.0
SRF1280A-102M
L @ 25 °C
L @ 125 °C
L (µH)
L (µH)
L (µH)
0.3
0.6
0.9
1.2
400.0
600.0
200.0
300.0
1.1
2.2
3.3
4.4
0.0
0.0
0.0
0.0
0.2
0.4
0.6
0.8
1.0
IDC (A)
Temperature Rise vs. IDC
SRF1280A-470M
100.0
80.0
ΔT
@ 25 °C
100.0
80.0
IDC (A)
IDC (A)
SRF1280A-681M
ΔT
@ 25 °C
100.0
80.0
SRF1280A-102M
ΔT
@ 25 °C
ΔT
(°C)
40.0
20.0
0.0
0.0
1.13
2.25
3.38
4.50
ΔT
(°C)
40.0
20.0
0.0
0.0
0.28
0.55
0.83
1.10
ΔT
(°C)
60.0
60.0
60.0
40.0
20.0
0.0
0.0
0.20
0.40
0.60
0.80
1.00
IDC (A)
IDC (A)
IDC (A)
Temperature
Rising Area
+4.0 °C / sec. max.
Preheat Area
150~200 °C / 60~120 sec.
Reflow Area
+3.0 °C / sec. max.
Forced Cooling Area
-(1.0~5.0) °C / sec. max.
250
217 °C
Temperature (°C)
200
150
60 ~ 120 sec.
60 ~ 150 sec.
60 sec. max.
Peak Temperature:
245 °C max.
Time Above 245 °C:
30 sec. max.
Time Above 217 °C:
60 ~ 150 sec. max.
100
50
0
50
100
150
200
250
Time (Seconds)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific disclaimers as set forth on the last page of this document, and at
www.bourns.com/legal/disclaimer.pdf.
3312 - 2 mm SMD Trimming Potentiometer
SRF1280A Series - Dual-Winding Shielded Power Inductors
330
DIA.
(12.99)
2.0
±
0.5
(.079
±
.020)
30.4
(1.197)
13.0 ± 0.5
(.512 ± .020)
DIA.
50.0 -0
(1.97 -0)
21.0
±
0.8
(.827
±
.031)
13.0
DIA.
(.512)
26 +0
(1.024 +0)
END
24.0
(.945)
4.0
(.157)
20.0
(.787)
START
NO COMPONENT
COMPONENTS
NO COMPONENT
200
(7.87)
400
(15.75)
USER DIRECTION OF FEED
QTY: 400 PCS. PER REEL
DIMENSIONS:
MM
(INCHES)
Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA:
Tel: +36 88 520 390 • Email: eurocus@bourns.com
The Americas:
Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
REV. 05/18
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific disclaimers as set forth on the last page of this document, and at
www.bourns.com/legal/disclaimer.pdf.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns
®
products manufactured by or on behalf of Bourns, Inc. and
Unless otherwise expressly indicated in writing, Bourns
®
products and data sheets relating thereto are subject to change
and complete before placing orders for Bourns
®
products.
The characteristics and parameters of a Bourns
®
product set forth in its data sheet are based on laboratory conditions, and
statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical
requirements in generic applications. The characteristics and parameters of a Bourns
®
®
product with other components
the actual performance of the Bourns
®
®
®
product as meeting the requirements of a particular industry
®
of Bourns products are responsible for ensuring compliance with safety-related requirements and standards applicable to
®
Bourns
®
on a case-by-case basis, use of any Bourns
®
®
®
®
®
Bourns
®
®
standard products that are suitable for use in aircraft
®
standard
the user’s sole risk.
®
and the user for which such Bourns
®
®
custom products shall be negotiated on a case-by-case basis by Bourns
®
also apply to such Bourns custom products.
Users shall not sell, transfer, export or re-export any Bourns
®
Bourns
®
standard products shall
products and Bourns technology and technical data may not under any circumstance be
exported or re-exported to countries subject to international sanctions or embargoes. Bourns
日本贵弥功发布了与该公司以往产品相比寿命延长至2倍的片式铝电解电容器“MHL系列”。在+125℃下可保证工作2000或4000小时，将产品寿命延长到了以往产品“MVH系列”的2倍。
此次的产品面向汽车ECU（Electric Control Unit，电子控制单元）用途，尤其适用于发动机室配备的ECU。据贵弥功介绍，用于发动机室ECU的电容器在耐高温方面有严格要求，车辆行驶时受发...[详细]
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