Trafo-Chips

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An index of Trafo-Chips found in all Box-Models and Accessories. Line Transformers are used to decouple and galvanically isolate external lines from the own circuit. AVM uses them for DSL, ISDN and LAN ports, which all handle symmetrical signals using 1 pair of wires per signal line. Common Mode Chokes are non isolating magnetic counterparts of differential amplifiers which filter out all noise arriving on both wires of a symmetrical line. AVM uses them for the DSL lines and for analog FON ports. ISDN and LAN ports do not need extra common mode chokes since they are typically integrated in their respective line transformers. Have a look at this image of an early ISDN solution, it shows a 4-wire line filter in the middle and two 2-wire transformers left and right, which later were merged into one component. Note that nothing is more exchangeable than magnetic components like signal transformers and chokes. It is normal that you find comparison models from multiple vendors for the same model and revision, depending on prices and availability of components. The Mod. column below just shows a counter for the probes reviewed here, and can never be precise for magnetics.

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FRITZ!Box Trafo-Chips

Selectors >> Components-Selector >> Trafo-Chips   -   See also:   Selectors >> Chips-Selector >> Trafo-Chips

Trafo-Chips	Cat.	Mod.	Family	Codename	Purpose	Altern.	Creator	Vendor	Description
48F-01NW2NL	Trafo	1			ETH-PHY		YDS	YDS	RJ-45 port with 1000 MBit/s Ethernet Transformer
5002X002	Trafo	2			ISDN-PHY		VAC	VAC	Common Mode Choke / Data Line Filter (4-wire)
5002X003	Trafo	2			ISDN-PHY		VAC	VAC	External ISDN S0 Line Transformer
5011X011	Trafo	2			DSL-PHY		VAC	VAC	Common Mode Choke / Data Line Filter
5014X018	Trafo	1			DSL-PHY		VAC	VAC	ADSL Line Transformer
5014X019	Trafo	1			DSL-PHY		VAC	VAC	ADSL Line Transformer
5014X020	Trafo	4			ISDN-PHY		VAC	VAC	External ISDN S0 Line Transformer
5014X023	Trafo	4			ISDN-PHY		VAC	VAC	External ISDN S0 Line Transformer
5024X028	Trafo	2			ISDN-PHY		VAC	VAC	External ISDN S0 Line Transformer
5024X029	Trafo	1			ISDN-PHY		VAC	VAC	External ISDN S0 Line Transformer
5024X040	Trafo	1			ISDN-PHY		VAC	VAC	External ISDN S0 Line Transformer
5024X053	Trafo	2			ISDN-PHY		VAC	VAC	Common Mode Choke / Data Line Filter (4-wire)
5024X062	Trafo	3			ISDN-PHY		VAC	VAC	External ISDN S0 Line Transformer
5024X068	Trafo	3			ISDN-PHY		VAC	VAC	Common Mode Choke / Data Line Filter (4-wire)
503-07-019-00	Trafo	1			DSL-PHY		VOGT	Sumida	VDSL Line Transformer
503-10-001-40	Trafo	3			ISDN-PHY		VOGT	Sumida	Common Mode Choke / Data Line Filter (4-wire)
503-10-015-00	Trafo	4			ISDN-PHY		VOGT	Sumida	External ISDN S0 Line Transformer
503-16-005-00	Trafo	2			ISDN-PHY		VOGT	Sumida	External ISDN S0 Line Transformer
503-16-012-00	Trafo	20			ISDN-PHY		VOGT	Sumida	ISDN S0 Line Transformer
503-16-022-00	Trafo	1			ISDN-PHY		VOGT	Sumida	ISDN S0 Line Transformer
503-20-999-00	Trafo	2			ISDN-PHY		VOGT	Sumida	External ISDN S0 Line Transformer
5034X010	Trafo	1			DSL-PHY		VAC	VAC	Common Mode Choke / Data Line Filter
504-13-038-00	Trafo	2			DSL-PHY		VOGT	Sumida	ADSL Line Transformer
504-13-039-00	Trafo	1			DSL-PHY		VOGT	Sumida	ADSL Line Transformer
504-13-041-00	Trafo	2			DSL-PHY		VOGT	Sumida	ADSL Line Transformer
504-13-045-00	Trafo	35			DSL-PHY		VOGT	Sumida	ADSL Line Transformer
504-13-066-00	Trafo	11			DSL-PHY		VOGT	Sumida	ADSL Line Transformer
504-13-XXX-00	Trafo	4			DSL-PHY		VOGT	Sumida	ADSL Line Transformer
513-16-012-00	Trafo	13			ISDN-PHY		VOGT	Sumida	ISDN S0 Line Transformer
513-20-987-00	Trafo	25			ETH-PHY		VOGT	Sumida	100 MBit/s Ethernet Transformer
513-40-914-00	Trafo	20			ETH-PHY		VOGT	Sumida	4x 100 MBit/s Ethernet Transformer
AF-010	Trafo	1			ETH-PHY		Acuwa	Acuwa	100 MBit/s Ethernet Transformer
APL-010	Trafo	1			ETH-PHY		Acuwa	Acuwa	1000 MBit/s Ethernet Transformer
APL-016D	Trafo	4			ETH-PHY		Acuwa	Acuwa	1000 MBit/s Ethernet Transformer
C14119P2	Trafo	2	CEP810		DSL-PHY		Sumida	Sumida	VDSL Line Transformer
E82793C475N	Trafo	17			DSL-PHY		EPCOS	TDK	Common Mode Choke / Data Line Filter
EP13-091	Trafo	1			DSL-PHY		Unknown	Unknown	VDSL Line Transformer
EP13-239	Trafo	4			DSL-PHY		Unknown	Unknown	VDSL Line Transformer
EP7-505	Trafo	1			DSL-PHY		Unknown	Unknown	G.Fast Line Transformer
EPCOS-1967-AC	Trafo	2			DSL-PHY		EPCOS	TDK	VDSL Line Transformer
G2405CG	Trafo	1			ETH-PHY		Mentech	Mentech	1000 MBit/s Ethernet Transformer
G24102MK	Trafo	1			ETH-PHY		FPE	FPE	1000 MBit/s Ethernet Transformer
G2438CG	Trafo	2			ETH-PHY		Mentech	Mentech	1000 MBit/s Ethernet Transformer
G48506MN	Trafo	1			ETH-PHY		FPE	FPE	2x 1000 MBit/s Ethernet Transformer
GT2406SC	Trafo	5			ETH-PHY		Magcom	Magcom	1000 MBit/s Ethernet Transformer
H1183NL	Trafo	1			ETH-PHY		Pulse	Pulse	100 MBit/s Ethernet Transformer
H16101MC	Trafo	2			ETH-PHY		FPE	FPE	100 MBit/s Ethernet Transformer
L4097-X011-80	Trafo	1			ISDN-PHY		VAC	VAC	External ISDN S0 Line Transformer
L4097-X012-80	Trafo	2			ISDN-PHY		VAC	VAC	S2M / ISDN Line Transformer
L5051-X005-80S4	Trafo	2			ISDN-PHY		VAC	VAC	External ISDN S0 Line Transformer
LAL0530	Trafo	5			DSL-PHY		LinkCom	LinkCom	VDSL Line Transformer
LAL0562	Trafo	1			DSL-PHY		LinkCom	LinkCom	VDSL Line Transformer
LAL0575	Trafo	1			DSL-PHY		LinkCom	LinkCom	VDSL Line Transformer
LAL0580	Trafo	2			DSL-PHY		LinkCom	LinkCom	VDSL2 35b Line Transformer
LAL0582	Trafo	1			DSL-PHY		LinkCom	LinkCom	VDSL Line Transformer
LFE8423	Trafo	1			ETH-PHY		Delta	Delta	100 MBit/s Ethernet Transformer
LFE8505	Trafo	7			ETH-PHY		Delta	Delta	100 MBit/s Ethernet Transformer
LFE8731	Trafo	1			ETH-PHY		Delta	Delta	4x 100 MBit/s Ethernet Transformer
LFE9120-R	Trafo	13			ETH-PHY		Delta	Delta	1000 MBit/s Ethernet Transformer
LG24147SN	Trafo	21			ETH-PHY		FPE	FPE	1000 MBit/s Ethernet Transformer
LG24162SN	Trafo	1			ETH-PHY		FPE	FPE	1000 MBit/s Ethernet Transformer
LGT1502	Trafo	1			DSL-PHY		LinkCom	LinkCom	G.Fast Line Transformer
LK24116SN	Trafo	6			ETH-PHY		FPE	FPE	2500 MBit/s Ethernet Transformer
LN16110SN	Trafo	3	LN1611x		ISDN-PHY		FPE	FPE	Internal ISDN S0 Line Transformer
LN16111SN	Trafo	5	LN1611x		ISDN-PHY		FPE	FPE	Internal ISDN S0 Line Transformer
LN20401SN	Trafo	1	LN2040x		ISDN-PHY		FPE	FPE	External ISDN S0 Line Transformer
LN20402SN	Trafo	2	LN2040x		ISDN-PHY		FPE	FPE	External ISDN S0 Line Transformer
MUJ-100B-501	Trafo	2			ISDN-PHY		Talema	Talema	ISDN S0 Line Transformer
N4021-X003-80	Trafo	1			ISDN-PHY		VAC	VAC	Common Mode Choke / Data Line Filter
OWTR-MS1544	Trafo	1			DSL-PHY		Ole Wolff	Ole Wolff	Common Mode Choke / Data Line Filter
T085-H332	Trafo	2			FON-PHY		Unknown	Unknown	Common Mode Choke / Data Line Filter
TG110-S050N2	Trafo	1			ETH-PHY		Halo	Halo	100 MBit/s Ethernet Transformer
TS21C-HF	Trafo	2			ETH-PHY		Bothhand	UMEC	100 MBit/s Ethernet Transformer
UE-40ST1041AX-LF	Trafo	3	40ST1041AX		ETH-PHY		Bothhand	UMEC	4x 100 MBit/s Ethernet Transformer
UE-40ST1041AXU	Trafo	1	40ST1041AX		ETH-PHY		Bothhand	UMEC	4x 100 MBit/s Ethernet Transformer
UE-40ST1041AXU-LF	Trafo	11	40ST1041AX		ETH-PHY		Bothhand	UMEC	4x 100 MBit/s Ethernet Transformer
UT21615	Trafo	1			ISDN-PHY		UMEC	UMEC	External ISDN S0 Line Transformer
UT21711	Trafo	4			ISDN-PHY		UMEC	UMEC	External ISDN S0 Line Transformer
UT21712	Trafo	1			ISDN-PHY		UMEC	UMEC	S2M / ISDN Line Transformer
UT28103	Trafo	4			ISDN-PHY		UMEC	UMEC	Common Mode Choke / Data Line Filter (4-wire)
UT28142-TS	Trafo	1			ISDN-PHY		UMEC	UMEC	External ISDN S0 Line Transformer
UT28428-TS	Trafo	2			ISDN-PHY		UMEC	UMEC	External ISDN S0 Line Transformer
UT28430-TS	Trafo	3			ISDN-PHY		UMEC	UMEC	Common Mode Choke / Data Line Filter (4-wire)
UTB01930S	Trafo	3			DSL-PHY		UMEC	UMEC	VDSL Line Transformer
UTB02037S	Trafo	1			DSL-PHY		UMEC	UMEC	VDSL Line Transformer
VOGT-5052	Trafo	10			FON-PHY		VOGT	Sumida	Common Mode Choke / Data Line Filter
VOGT-5203	Trafo	49			DSL-PHY		VOGT	Sumida	Common Mode Choke / Data Line Filter
VOGT-5472	Trafo	43			FON-PHY		VOGT	Sumida	Common Mode Choke / Data Line Filter
VOGT-952602	Trafo	2			DSL-PHY		VOGT	Sumida	VDSL Line Transformer
WE-100	Trafo	1			DSL-PHY		Würth	Würth	Common Mode Choke / Data Line Filter
WE-202	Trafo	11			DSL-PHY		Würth	Würth	Common Mode Choke / Data Line Filter
WE-40799-LF1	Trafo	21			FON-PHY		Würth	Würth	Common Mode Choke / Data Line Filter
WE-472	Trafo	4			FON-PHY		Würth	Würth	Common Mode Choke / Data Line Filter
WE-501	Trafo	1			DSL-PHY		Würth	Würth	Common Mode Choke / Data Line Filter
WE-52413-LF1	Trafo	10			ISDN-PHY		Würth	Würth	ISDN S0 Line Transformer
WE-7490200141	Trafo	11			ETH-PHY		Würth	Würth	1000 MBit/s Ethernet Transformer
WE-750510274	Trafo	1			ISDN-PHY		Würth	Würth	External ISDN S0 Line Transformer
WE-750510456	Trafo	2			DSL-PHY		Würth	Würth	ADSL Line Transformer
WE-750510460	Trafo	2			DSL-PHY		Würth	Würth	ADSL Line Transformer
WE-BC510164	Trafo	1			DSL-PHY		Würth	Würth	VDSL Line Transformer
WE-BC510165	Trafo	1			DSL-PHY		Würth	Würth	VDSL Line Transformer
WE-BC510173	Trafo	2			DSL-PHY		Würth	Würth	VDSL Line Transformer
WE-BC510174	Trafo	2			DSL-PHY		Würth	Würth	VDSL Line Transformer

References

Bob-Smith-Termination

See the external SMD stuff near the LAN transformer and the circuit diagram:

• https://boxmatrix.info/w/images/8/84/FRITZ%21Box_SL-Image6.jpg
• https://e2e.ti.com/support/interface-group/interface/f/interface-forum/958671/bob-smith-termination
• https://resources.altium.com/sites/default/files/inline-images/bob-smith-1.png
• https://i.stack.imgur.com/ldv4l.jpg
• https://i.stack.imgur.com/aHas8.jpg