Switching Controllers – Mouser Denmark

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Buck Converters for Power Over Ethernet

A buck converter is a power efficient voltage step-down converter that changes a higher voltage to a lower voltage. Whereas a linear regulator can achieve the same purpose, regulators can waste more energy via conversion of excess energy to heat. For this reason, a buck DC/DC converter is the preferred choice for power-efficient designs. A DC/DC boost converter, also known as a step-up converter, is a semiconductor device or electrical circuit that has an output DC voltage that is greater than the DC input voltage.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (DKK) Filter the results in the table by unit price based on your quantity.	Qty.	Topology	Number of Outputs	Switching Frequency	Duty Cycle - Max	Output Voltage	Output Current	Minimum Operating Temperature	Maximum Operating Temperature	Mounting Style	Package/Case	Qualification	Packaging
Switching Controllers 16V Input Step-Down DCDC Controller XC9220D093MR-G Torex Semiconductor 1: 8,73 kr. 100In Stock	Mfr. Part No. XC9220D093MR-G Mouser Part No 865-XC9220D093MR-G	Torex Semiconductor	Switching Controllers 16V Input Step-Down DCDC Controller Learn More about Torex Semiconductor torex xc92x dc dc step down controller ics	Datasheet	100In Stock	Cut Tape 8,73 kr. 6,34 kr. 5,75 kr. 5,09 kr. Reel 4,24 kr. View 4,78 kr. 4,59 kr. 4,46 kr. 4,15 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	300 kHz	100 %	Adjustable	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-25-5		Reel, Cut Tape, MouseReel
Switching Controllers 16V Input Step-Down DCDC Controller XC9220D095MR-G Torex Semiconductor 1: 8,73 kr. 30In Stock	Mfr. Part No. XC9220D095MR-G Mouser Part No 865-XC9220D095MR-G	Torex Semiconductor	Switching Controllers 16V Input Step-Down DCDC Controller Learn More about Torex Semiconductor torex xc92x dc dc step down controller ics	Datasheet	30In Stock	Cut Tape 8,73 kr. 6,34 kr. 5,75 kr. 5,09 kr. Reel 4,24 kr. View 4,78 kr. 4,59 kr. 4,46 kr. 4,15 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	500 kHz	100 %	Adjustable	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-25-5		Reel, Cut Tape, MouseReel
Switching Controllers 16V Step-Down DCDC Controller XC9221A095MR-G Torex Semiconductor 1: 8,73 kr. 100In Stock	Mfr. Part No. XC9221A095MR-G Mouser Part No 865-XC9221A095MR-G	Torex Semiconductor	Switching Controllers 16V Step-Down DCDC Controller Learn More about Torex Semiconductor torex xc92x dc dc step down controller ics	Datasheet	100In Stock	Cut Tape 8,73 kr. 6,34 kr. 5,75 kr. 5,09 kr. Reel 4,24 kr. View 4,78 kr. 4,59 kr. 4,46 kr. 4,15 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	500 kHz	100 %	900 mV	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-25-5		Reel, Cut Tape, MouseReel
Switching Controllers 16V Input Step-Down DCDC Controller XC9221A09AER-G Torex Semiconductor 1: 11,12 kr. 100In Stock	Mfr. Part No. XC9221A09AER-G Mouser Part No 865-XC9221A09AER-G	Torex Semiconductor	Switching Controllers 16V Input Step-Down DCDC Controller Learn More about Torex Semiconductor torex xc92x dc dc step down controller ics	Datasheet	100In Stock	Cut Tape 11,12 kr. 8,13 kr. 7,45 kr. 6,61 kr. Reel 5,52 kr. View 6,20 kr. 5,96 kr. 5,94 kr. 5,41 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	1 MHz	100 %	Adjustable	3 A	- 40 C	+ 85 C	SMD/SMT	USP-6C		Reel, Cut Tape, MouseReel
Switching Controllers 16V Input Step-Down DCDC Controller XC9221C093MR-G Torex Semiconductor 1: 8,73 kr. 100In Stock	Mfr. Part No. XC9221C093MR-G Mouser Part No 865-XC9221C093MR-G	Torex Semiconductor	Switching Controllers 16V Input Step-Down DCDC Controller Learn More about Torex Semiconductor torex xc92x dc dc step down controller ics	Datasheet	100In Stock	Cut Tape 8,73 kr. 6,34 kr. 5,75 kr. 5,09 kr. Reel 4,24 kr. View 4,78 kr. 4,59 kr. 4,41 kr. 4,15 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	300 kHz	100 %	Adjustable	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-25-5		Reel, Cut Tape, MouseReel
Switching Controllers 16V Input Step-Down DCDC Controller XC9221C095MR-G Torex Semiconductor 1: 8,73 kr. 100In Stock	Mfr. Part No. XC9221C095MR-G Mouser Part No 865-XC9221C095MR-G	Torex Semiconductor	Switching Controllers 16V Input Step-Down DCDC Controller Learn More about Torex Semiconductor torex xc92x dc dc step down controller ics	Datasheet	100In Stock	Cut Tape 8,73 kr. 6,34 kr. 5,75 kr. 5,09 kr. Reel 4,24 kr. View 4,78 kr. 4,59 kr. 4,46 kr. 4,15 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	500 kHz	100 %	Adjustable	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-25-5		Reel, Cut Tape, MouseReel
Switching Controllers 16V Input Step-Down DCDC Controller XC9221C09AMR-G Torex Semiconductor 1: 8,73 kr. 87In Stock	Mfr. Part No. XC9221C09AMR-G Mouser Part No 865-XC9221C09AMR-G	Torex Semiconductor	Switching Controllers 16V Input Step-Down DCDC Controller Learn More about Torex Semiconductor torex xc92x dc dc step down controller ics	Datasheet	87In Stock	Cut Tape 8,73 kr. 6,34 kr. 5,75 kr. 5,09 kr. Reel 4,24 kr. View 4,78 kr. 4,59 kr. 4,46 kr. 4,15 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	1 MHz	100 %	Adjustable	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-25-5		Reel, Cut Tape, MouseReel
Switching Controllers 16V Input Step-Down DCDC Controller XC9221D09AMR-G Torex Semiconductor 1: 8,73 kr. 100In Stock	Mfr. Part No. XC9221D09AMR-G Mouser Part No 865-XC9221D09AMR-G	Torex Semiconductor	Switching Controllers 16V Input Step-Down DCDC Controller Learn More about Torex Semiconductor torex xc92x dc dc step down controller ics	Datasheet	100In Stock	Cut Tape 8,73 kr. 6,34 kr. 5,75 kr. 5,09 kr. Reel 4,24 kr. View 4,78 kr. 4,59 kr. 4,46 kr. 4,15 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	1 MHz	100 %	Adjustable	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-25-5		Reel, Cut Tape, MouseReel
Switching Controllers 30V Low Quiescent CurrentDCDCConverter XC9252A08AVR-G Torex Semiconductor 1: 21,78 kr. 25In Stock	Mfr. Part No. XC9252A08AVR-G Mouser Part No 865-XC9252A08AVR-G	Torex Semiconductor	Switching Controllers 30V Low Quiescent CurrentDCDCConverter Learn More about Torex Semiconductor torex xc92x dc dc step down controller ics	Datasheet	25In Stock	Cut Tape 21,78 kr. 16,41 kr. 14,99 kr. 13,50 kr. View Reel 11,56 kr. 12,83 kr. 12,68 kr. 12,31 kr. 11,56 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	280 kHz to 550 kHz	100 %	1.5 V to 30 V	1 mA	- 40 C	+ 105 C	SMD/SMT	TSSOP-16		Reel, Cut Tape, MouseReel
Switching Controllers 30V Low Quiescent Current Step-Down DCDC Controller XC9252B08ADR-G Torex Semiconductor 1: 15,07 kr. 100In Stock	Mfr. Part No. XC9252B08ADR-G Mouser Part No 865-XC9252B08ADR-G	Torex Semiconductor	Switching Controllers 30V Low Quiescent Current Step-Down DCDC Controller Learn More about Torex Semiconductor torex xc92x dc dc step down controller ics	Datasheet	100In Stock	Cut Tape 15,07 kr. 11,26 kr. 10,44 kr. 9,18 kr. Reel 7,68 kr. View 8,65 kr. 8,43 kr. 8,28 kr. 7,53 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	280 kHz to 550 kHz	100 %	1.5 V to 30 V	1 mA	- 40 C	+ 105 C	SMD/SMT	USP-10B		Reel, Cut Tape, MouseReel
Switching Controllers Step-Up & Step-Down 180kHz DCDC Controller XC9301A332MR-G Torex Semiconductor 1: 9,92 kr. 100In Stock	Mfr. Part No. XC9301A332MR-G Mouser Part No 865-XC9301A332MR-G	Torex Semiconductor	Switching Controllers Step-Up & Step-Down 180kHz DCDC Controller Learn More about Torex Semiconductor torex xc930x step up down dc dc controller ics	Datasheet	100In Stock	Cut Tape 9,92 kr. 7,25 kr. 6,61 kr. 5,86 kr. Reel 4,88 kr. View 5,49 kr. 5,28 kr. 5,22 kr. 4,77 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Boost, Buck	1 Output	180 kHz	92 %	3.3 V	250 mA	- 40 C	+ 85 C	SMD/SMT	SOT-25-5		Reel, Cut Tape, MouseReel
Switching Controllers 42V Constant On-Time PFET Switching Cntl A 926-LM25085AMM/NOPB LM25085AMME/NOPB Texas Instruments 1: 17,61 kr. 728In Stock	Mfr. Part No. LM25085AMME/NOPB Mouser Part No 926-LM25085AMME/NOPB	Texas Instruments	Switching Controllers 42V Constant On-Time PFET Switching Cntl A 926-LM25085AMM/NOPB	Datasheet	728In Stock	Cut Tape 17,61 kr. 14,25 kr. 13,06 kr. 11,71 kr. Reel 11,26 kr. View 10,74 kr. 9,92 kr. 9,77 kr. 9,62 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	1 MHz	100 %	900 mV to 42 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	VSSOP-8		Reel, Cut Tape, MouseReel
Switching Controllers 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085ASDE/NOPB LM25085ASD/NOPB Texas Instruments 1: 19,02 kr. 653In Stock	Mfr. Part No. LM25085ASD/NOPB Mouser Part No 926-LM25085ASD/NOPB	Texas Instruments	Switching Controllers 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085ASDE/NOPB	Datasheet	653In Stock	Cut Tape 19,02 kr. 14,25 kr. 13,06 kr. 11,71 kr. Reel 10,29 kr. View 11,04 kr. 10,82 kr. 9,92 kr. 9,77 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Buck	1 Output	1 MHz	100 %	900 mV to 42 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	LLP-8		Reel, Cut Tape, MouseReel
Switching Controllers 42V On-Time PFET Buc k Switch Cntlr A 92 A 926-LM25085MME/NOPB LM25085MM/NOPB Texas Instruments 1: 18,72 kr. 323In Stock 1.000Expected 04/12/2026	Mfr. Part No. LM25085MM/NOPB Mouser Part No 926-LM25085MM/NOPB	Texas Instruments	Switching Controllers 42V On-Time PFET Buc k Switch Cntlr A 92 A 926-LM25085MME/NOPB	Datasheet	323In Stock 1.000Expected 04/12/2026	Cut Tape 18,72 kr. 15,14 kr. 13,95 kr. 12,53 kr. Reel 10,29 kr. View 11,86 kr. 11,71 kr. 10,15 kr. 10,07 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Buck	1 Output	1 MHz	100 %	1.25 V to 42 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	VSSOP-8		Reel, Cut Tape, MouseReel
Switching Controllers 42V Constant PFET Bu ck Switch Cntlr A 9 A 926-LM25085MM/NOPB LM25085MME/NOPB Texas Instruments 1: 20,22 kr. 124In Stock 250Expected 07/06/2027	Mfr. Part No. LM25085MME/NOPB Mouser Part No 926-LM25085MME/NOPB	Texas Instruments	Switching Controllers 42V Constant PFET Bu ck Switch Cntlr A 9 A 926-LM25085MM/NOPB	Datasheet	124In Stock 250Expected 07/06/2027	Cut Tape 20,22 kr. 15,14 kr. 13,95 kr. 12,53 kr. Reel 11,79 kr. View 11,12 kr. 10,74 kr. 10,44 kr. 10,37 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	1 MHz	100 %	1.25 V to 42 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	VSSOP-8		Reel, Cut Tape, MouseReel
Switching Controllers 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085MME/NOPB LM25085MMX/NOPB Texas Instruments 1: 17,61 kr. 56In Stock 3.500Expected 07/06/2027	Mfr. Part No. LM25085MMX/NOPB Mouser Part No 926-LM25085MMX/NOPB	Texas Instruments	Switching Controllers 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085MME/NOPB	Datasheet	56In Stock 3.500Expected 07/06/2027	Cut Tape 17,61 kr. 13,06 kr. 12,01 kr. 10,52 kr. View Reel 8,95 kr. 9,92 kr. 9,77 kr. 8,95 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.500	Buck	1 Output	1 MHz	100 %	1.25 V to 42 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	VSSOP-8		Reel, Cut Tape, MouseReel
Switching Controllers 42V On-Time PFET Buc k Switch Cntlr A 92 A 926-LM25085MY/NOPB LM25085MYE/NOPB Texas Instruments 1: 19,25 kr. 85In Stock 13.250On Order	Mfr. Part No. LM25085MYE/NOPB Mouser Part No 926-LM25085MYE/NOPB	Texas Instruments	Switching Controllers 42V On-Time PFET Buc k Switch Cntlr A 92 A 926-LM25085MY/NOPB	Datasheet	85In Stock 13.250On Order On Order Ship Dates Mfr. No: LM25085MYE/NOPB Stock: 85 Can Dispatch Immediately On Order: 4.750 Expected 28/10/2027 8.500 Expected 06/01/2028 Factory Lead Time: 26 Weeks	Cut Tape 19,25 kr. 14,40 kr. 13,13 kr. 11,79 kr. Reel 11,26 kr. View 10,74 kr. 10,00 kr. 9,92 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	1 MHz	100 %	1.25 V to 42 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	MSOP-PowerPad-8		Reel, Cut Tape, MouseReel
Switching Controllers 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085MYE/NOPB LM25085MYX/NOPB Texas Instruments 1: 16,11 kr. 102In Stock 17.500On Order	Mfr. Part No. LM25085MYX/NOPB Mouser Part No 926-LM25085MYX/NOPB	Texas Instruments	Switching Controllers 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085MYE/NOPB	Datasheet	102In Stock 17.500On Order On Order Ship Dates Mfr. No: LM25085MYX/NOPB Stock: 102 Can Dispatch Immediately On Order: 3.500 Expected 28/01/2027 7.000 Expected 08/02/2027 7.000 Expected 01/03/2027 Factory Lead Time: 26 Weeks	Cut Tape 16,11 kr. 11,94 kr. 10,89 kr. 9,77 kr. View Reel 8,21 kr. 9,25 kr. 8,95 kr. 8,21 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.500	Buck	1 Output	1 MHz	100 %	1.25 V to 42 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	MSOP-PowerPad-8		Reel, Cut Tape, MouseReel
Switching Controllers 42V Constant On-Time PFET Switching Cntl A 926-LM25085QMY/NOPB LM25085QMYE/NOPB Texas Instruments 1: 22,90 kr. 16In Stock	Mfr. Part No. LM25085QMYE/NOPB Mouser Part No 926-LM25085QMYE/NOPB	Texas Instruments	Switching Controllers 42V Constant On-Time PFET Switching Cntl A 926-LM25085QMY/NOPB	Datasheet	16In Stock	Cut Tape 22,90 kr. 17,23 kr. 15,82 kr. 15,14 kr. Reel 13,13 kr. View 12,83 kr. 12,61 kr. 12,16 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	1 MHz	100 %	1.25 V to 42 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	MSOP-PowerPad-8	AEC-Q100	Reel, Cut Tape, MouseReel
Switching Controllers 42V Constant On-Time PFET Switching Cntl A 926-LM25085SD/NOPB LM25085SDE/NOPB Texas Instruments 1: 17,38 kr. 282In Stock	Mfr. Part No. LM25085SDE/NOPB Mouser Part No 926-LM25085SDE/NOPB	Texas Instruments	Switching Controllers 42V Constant On-Time PFET Switching Cntl A 926-LM25085SD/NOPB	Datasheet	282In Stock	Cut Tape 17,38 kr. 12,91 kr. 11,79 kr. 10,59 kr. Reel 8,80 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	1 MHz	100 %	1.25 V to 42 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	LLP-8		Reel, Cut Tape, MouseReel
Switching Controllers WIDE RANGE SYNC BUCK CONTROLLER A 926-LM A 926-LM25116MHX/NOPB LM25116MH/NOPB Texas Instruments 1: 44,16 kr. 7In Stock 1.460On Order	Mfr. Part No. LM25116MH/NOPB Mouser Part No 926-LM25116MH/NOPB	Texas Instruments	Switching Controllers WIDE RANGE SYNC BUCK CONTROLLER A 926-LM A 926-LM25116MHX/NOPB	Datasheet	7In Stock 1.460On Order On Order Ship Dates Mfr. No: LM25116MH/NOPB Stock: 7 Can Dispatch Immediately On Order: 511 Expected 23/11/2026 949 Expected 24/05/2027 Factory Lead Time: 26 Weeks	44,16 kr. 33,87 kr. 31,33 kr. 28,42 kr. View 27,08 kr. 26,26 kr. 25,89 kr. 25,59 kr.	Min.: 1 Mult.: 1	Buck	1 Output	590 kHz	85 %	1.215 V to 36 V	10 A	- 40 C	+ 125 C	SMD/SMT	HTSSOP-20		Tube
Switching Controllers Wide Vltg Range Buck Boost Cntrlr A 926- A 926-LM25118MHE/NOPB LM25118MH/NOPB Texas Instruments 1: 41,48 kr. 186In Stock 949On Order	Mfr. Part No. LM25118MH/NOPB Mouser Part No 926-LM25118MH/NOPB	Texas Instruments	Switching Controllers Wide Vltg Range Buck Boost Cntrlr A 926- A 926-LM25118MHE/NOPB Learn More about Texas Instruments ti lm25118 controller	Datasheet	186In Stock 949On Order On Order Ship Dates Mfr. No: LM25118MH/NOPB Stock: 186 Can Dispatch Immediately On Order: 365 Expected 19/11/2026 584 Expected 23/11/2026 Factory Lead Time: 26 Weeks	41,48 kr. 31,85 kr. 27,75 kr. 26,41 kr. View 25,36 kr. 24,99 kr. 24,54 kr.	Min.: 1 Mult.: 1	Boost, Buck	1 Output	500 kHz	80 %	1.23 V to 38 V	3.5 A	- 40 C	+ 125 C	SMD/SMT	HTSSOP-20		Tube
Switching Controllers Wide Vltg Range Buck Boost Cntrlr A 926- A 926-LM25118MHE/NOPB LM25118MHX/NOPB Texas Instruments 1: 39,61 kr. 18In Stock 5.000Expected 10/12/2026	Mfr. Part No. LM25118MHX/NOPB Mouser Part No 926-LM25118MHX/NOPB	Texas Instruments	Switching Controllers Wide Vltg Range Buck Boost Cntrlr A 926- A 926-LM25118MHE/NOPB	Datasheet	18In Stock 5.000Expected 10/12/2026	Cut Tape 39,61 kr. 30,29 kr. 27,98 kr. 25,44 kr. View Reel 21,56 kr. 24,25 kr. 23,20 kr. 23,13 kr. 21,56 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Boost, Buck	1 Output	500 kHz	80 %	1.23 V to 38 V	3.5 A	- 40 C	+ 125 C	SMD/SMT	HTSSOP-20		Reel, Cut Tape, MouseReel
Switching Controllers N-CH FET Sync Buck R eg Cntlr A 926-LM27 A 926-LM2727MTCX/NOPB LM2727MTC/NOPB Texas Instruments 1: 24,17 kr. 488In Stock	Mfr. Part No. LM2727MTC/NOPB Mouser Part No 926-LM2727MTC/NOPB	Texas Instruments	Switching Controllers N-CH FET Sync Buck R eg Cntlr A 926-LM27 A 926-LM2727MTCX/NOPB	Datasheet	488In Stock	24,17 kr. 18,80 kr. 14,99 kr. 14,70 kr. 13,20 kr.	Min.: 1 Mult.: 1	Buck	1 Output	2 MHz	90 %	600 mV to 5 V	20 A	0 C	+ 125 C	SMD/SMT	TSSOP-14		Tube
Switching Controllers Lo Vtg N-Ch MOSFET S ync Buck Reg Cntlr A 926-LM2743MTCX/NOPB LM2743MTC/NOPB Texas Instruments 1: 25,36 kr. 3In Stock	Mfr. Part No. LM2743MTC/NOPB Mouser Part No 926-LM2743MTC/NOPB	Texas Instruments	Switching Controllers Lo Vtg N-Ch MOSFET S ync Buck Reg Cntlr A 926-LM2743MTCX/NOPB	Datasheet	3In Stock	25,36 kr. 18,80 kr. 16,49 kr. 15,14 kr. View 14,55 kr. 14,02 kr.	Min.: 1 Mult.: 1	Buck	1 Output	50 kHz to 1 MHz	80 %	Adjustable	4 A	- 40 C	+ 125 C	SMD/SMT	TSSOP-14		Tube