# Common Mode Choke, 3.5 mH, 2.5 A, 14.6 mm L, 16.5 mm W, 8.9 mm H, SRF1709 Series
**URL**: https://novapart.co/products/SRF1709-352Y/common-mode-choke-35-mh-25-a-146-mm-l-165-w-89-h
**SKU**: SRF1709-352Y
**Manufacturer**: BOURNS
**Category**: Passive Components || EMC / RFI Suppression || Common Mode Chokes / Filters || SMD Common Mode Chokes / Filters
**Price**: €1.9200
**Stock**: 100+
**Lead Time**: 120 days (indicative)
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:4802869RL/)
**MODEL SRF1709** Common Mode Choke
## **Applications**
## **Features**
n Ferrite toroid core for low radiation n Noise suppression - power lines n Current rating: 2.5 A n High inductance: 3.5 mH n RoHS compliant* and halogen free**
## **Sustainability**
n High pallet density for lower CO₂ n Eco-logistics-friendly packing n Corrosion-resistant for longevity n ISO 14001, low impact energy n Responsibly sourced and produced n Meets EU 94/62/EC standards
## ~~ee~~ **Product Overview**
Featuring a ferrite toroid core for low radiation and a high inductance of 3.5 mH, the Model SRF1709 suppresses electromagnetic interference (EMI) coming into or leaving from the system. This
high inductance common mode choke is ideal for power line noise suppression in consumer, industrial, and other electronic applications.
**Electrical Specifications (@ 25 °C Unless Otherwise Noted)** Inductance DCR L1, L2 SRF N1, N2 Irms @ 10 kHz / 0.1 V Tolerance (MHZ) (mW) (A) Bourns Part No. (mH) (%) Typ. Max. Typ. SRF1709-352Y 3.5 ±40 1.15 79.5 2.5 **General Specifications How to Order** ~~es~~ «| Operating Temperature .............................................................. -40 °C to +85 °C **SRF1709 - 352 Y** Storage Temperature ................................................................... -40 °C to +85 °C Model Temperature Rise .....................................................................40 °C at rated Irms Value Code Hi-Pot(N1-N2) ..........................................................................1 kVdc, 3 mA, 1 sec. Tolerance ~~el~~ Moisture Sensitivity Level ....................................................................................... 1 ESD Classification (HBM) ....................................................................................N/A
**SRF1709 - 352 Y**
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eee Electrical Schematic
Materials 4 3
Core ......................................................................................................................Ferrite N2
Wire ...............................................................................................Enameled copper
Terminal finish ................................................................................................SnAgCu LJ
Packaging .......................................................................250 pcs. per 13-inch reel
Typical Part Marking N1
a PIN 1 INDICATOR |
1 2
Contact Information
INDUCTANCE DATE CODE:
CODE YEAR AND WEEK OF MANUFACTURE www.bourns.com Phone Email
• YY: YEAR (LAST TWO DIGITS)
• WW: WEEK NUMBER Asia-Pacific +886-2 2562-4117 asiacus@bourns.com
EXAMPLE:
Europe +36 88 885 877 eurocus@bourns.com
Of y 2506 = YEAR 2025, WEEK 06 ns
Mexico +52 614 478 0400 mexicus@bourns.com
es
The Americas +1-951 781-5500 americus@bourns.com
es
**----- End of picture text -----**
- RoHS Directive 2015/863, Mar 31, 2015 and Annex.
- ** 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.
## **www.bourns.com**
PRODUCT = TECHNICAL We INVENTORY SAMPLES B FOLLOW oy CONTACT © LIBRARY
## **MODEL SRF1709** Common Mode Choke
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**----- Start of picture text -----**
Ln Product Dimensions
K dnt i 7 |,
4 3
8.9
AN & is OA BOTS AD
(.350)
(.575)14.6 MAX. DIMENSIONS: MM
MAX. (INCHES)
bg YYWW Re 13.46 +o i)
(.530) [TYP.] 1 2
16.5
(.650) [MAX.]
TOP VIEW SIDE VIEW BOTTOM VIEW
**----- End of picture text -----**
**==> picture [541 x 318] intentionally omitted <==**
**----- Start of picture text -----**
Recommended Layout Temperature Rise
ee, «= — eee
1.52 60
(.060)
50 ee,
.
40
“8 4.45 8.64 30 Po
(.175)
(.340) 20 seee2e
10
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13.46 0.0 0.5 1.0 1.5 2.0 2.5 3.0
(.530)
IDC (A)
ee Solder Reflow Recommendations
<30 Sec. Profile Feature Pb Free Assembly
245
PE MAX. RAMP UP RATE = 3 °C/SEC. TE, " = TC -5 °C Preheat
MAX. RAMP DOWN RATE = 6 °C/SEC. - Temperature Min. (Tsmin) 150 °C
217 nnn een AE We - Temperature Max. (Tsmax) 200 °C
PREHEAT AREA 60~150Sec. - Time(ts) from Tsmin to Tsmax 60-120 seconds
200 °C Ramp-up Rate (TL to Tp) 3 °C/second max.
Liquidous temperature (TL) 217 °C
150°C
60~120 Time (tL) maintained above TL 60-150 seconds
Sec.
Peak package body temperature (Tp) 245 °C
25 Time 25 °C to Peak Time within 5 °C of Actual Peak Temperature (tp) <30 seconds
8 Minutes Max.
/—— —| Ramp-Down Rate (Tp to TL) 6 °C/second max.
Time (Seconds) Time 25 °C to Peak Temperature 8 minutes max.
T (°C)
Δ
Temperature (°C)
**----- End of picture text -----**
**==> picture [74 x 7] intentionally omitted <==**
**----- Start of picture text -----**
REFLOW TIMES: 3 TIMES MAX.
**----- End of picture text -----**
Tp = Maximum peak package body temperature Tc = The classification temperature Tp should be equal to or less than Tc Refer to IPC/JEDEC J-STD-020E
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.
PRODUCT SU TECHNICAL INVENTORY ua SAMPLES FOLLOW Gi CONTACT © LIBRARY
**www.bourns.com**
**MODEL SRF1709** Common Mode Choke
**==> picture [540 x 422] intentionally omitted <==**
**----- Start of picture text -----**
L Packaging Specifications S
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USER DIRECTION OF FEED
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QTY: 250 PCS. PER REEL
38.4 2.0 ± 0.5 COVER TAPE
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**----- End of picture text -----**
REV. 09/25
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.
PRODUCT Sw TECHNICAL INVENTORY iu SAMPLES & FOLLOW ~~H~~ O CONTACT LIBRARY
**www.bourns.com**
## **Legal Disclaimer Notice**
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Unless otherwise expressly indicated in writing, Bourns[®] products and data sheets relating thereto are subject to change without notice. Users should check for and obtain the latest relevant information and verify that such information is current 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 in a user application may vary from the data sheet characteristics and parameters due to (i) the combination of the Bourns[®] product with other components in the user’s application, or (ii) the environment of the user application itself. The characteristics and parameters of a Bourns[®] product also can and do vary in different applications and actual performance may vary over time. Users should always verify the actual performance of the Bourns[®] product in their specific devices and applications, and make their own independent judgments regarding the amount of additional test margin to design into their device or application to compensate for differences between laboratory and real world conditions.
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_Web Page: http://www.bourns.com/legal/disclaimers-terms-and-policies PDF: http://www.bourns.com/docs/Legal/disclaimer.pdf_
**CALIFORNIA WARNING:** Can expose you to lead, a carcinogen and reproductive toxicant. A See www.P65Warnings.ca.gov
C1753 12/14/23R
**www.bourns.com**
## Links
- [View this product on Novapart](https://novapart.co/products/SRF1709-352Y/common-mode-choke-35-mh-25-a-146-mm-l-165-w-89-h)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/bourns/srf1709-352y/common-mode-filter-3500uh-2-5a/dp/4802869RL)
---
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