The Win Source Electronics part number 1274613-SDR1045-681K is a fixed inductor from the SDR1045 series, featuring a drum core and wirewound construction. It has an inductance value of 680 ¬µH with a tolerance of ¬±10%. The inductor is designed for surface mount technology (SMD) applications and has a maximum height of 4.80 mm. It operates effectively within a temperature range of -40 ¬8C to +125 ¬8C. This component has a self-resonant frequency of 3.6 MHz and a quality factor (Q) of 13 at 796 kHz. The DC resistance (DCR) is specified at a maximum of 3.3 Ohms. The inductor can handle a rated current of 430 mA and a saturation current of 460 mA. It is packaged in tape and reel format, with 700 pieces per reel, making it suitable for automated assembly processes. The core material is ferrite, and the product is RoHS compliant.
Win Source Part Number: 1274613-SDR1045-681K
Category: Inductors, Coils, Chokes>Fixed Inductors
Series: SDR1045
Type: Drum Core, Wirewound
Package: Tape & Reel (TR)
Shielding: Unshielded
Inductance: 680 µH
Height - Seated (Max): 0.189" (4.80mm)
Standard Package: 700
Mounting: SMD (SMT)
Tolerance: ±10%
Material - Core: Ferrite
Q @ Freq: 13 @ 796kHz
Frequency - Self Resonant: 3.6MHz
Package / Case: Nonstandard
DC Resistance (DCR): 3.3Ohm Max
Temperature Range - Operating: -40°C ~ 125°C
Dimension: 0.394" L x 0.394" W (10.00mm x 10.00mm)
ECCN: EAR99
Fake Threat In the Open Market: 73 pct.
MSL Level: 1 (Unlimited)
Current Rating (Amps): 430 mA
Inductance Frequency - Test: 100 kHz
REACH Status: REACH Unaffected
HTSUS: 8504.50.4000
Mfr: Bourns Inc.
Base Product Number: SDR1045
Current - Saturation (Isat): 460mA
680µH Unshielded Wirewound Inductor 430mA 3.3Ohm Max Nonstandard
FIXED IND 680UH 430MA 3.3OHM SMD Product overview: SDR1045-681K from Bourns, Inc. is an Inductor and Choke for power conversion, EMI filtering, RF circuits, signal conditioning, and energy storage in switching supplies. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include SMD, 680UH, 430MA, 3.3OHM. Search-friendly keywords include inductor, choke, ferrite bead, power conversion, EMI, SMD, 680UH, 430MA, 3.3OHM, Inductor and Choke. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 71-SDR1045-681K can be used for catalog matching and distributor lookup.
| Win Source Electronics | DigiKey | ERSAELECTRONICS PTE. LTD. | |
|---|---|---|---|
| Product Category | Inductors, Coils, and Chokes | Inductors, Coils, and Chokes | Inductors, Coils, and Chokes |
| Product Number | 1274613-SDR1045-681K | SDR1045-681K-ND | 71-SDR1045-681K |
| Product Name | Inductors, Coils, Chokes - Fixed Inductors | Fixed Inductors | SMD 680UH 430MA 3.3OHM Inductor and Choke |
| Operating Temperature | -40 to 125 C (-40 to 257 F) | -40 to 125 C (-40 to 257 F) | -40 to 125 C (-40 to 257 F) |
| Mounting Option | Surface Mount Technology | Surface Mount Technology | Surface Mount |
| Technology | Standard; Wirewound | Drum Core, Wirewound | |
| Core Material | Ferrite | Ferrite; Drum Core, Wirewound | Ferrite |
| Application | RF Choke |
