WE-PoE++ Power over Ethernet Plus Plus Transformer

Size	L (mm)	W (mm)	H (mm)	Mount
EFD20	-	-	-	-
EFD25	27.03	32.45	13.97	SMT
EPW15	15.5	21.69	13.5	SMT
ER19/4/8/15	21.08	23.37	10.5	SMT

Characteristics

Suitable for CCM Flyback or Active Clamp Forward
Different power levels up to 95W
Frequency range: 250-400 kHz
Different output voltages available
Custom designs available

Applications

Telecom
Industrial Applications
WLAN Access Point
Safety cameras
Intelligent LED Lighting Networks

Application Notes

ANP113 Feedback loop compensation of a current-mode Flyback converter with optocoupler
PDF

Products

All

EFD20

EFD25

EPW15

ER19/4/8/15

Order Code	Datasheet	Simulation	Downloads	Status	Version	V_IN	V_Out1 (V)	I_Out1 (A)	V_Out2 (V)	I_Out2 (A)	V_aux (V)	L (µH)	n	I_SAT (A)	V_T (V (AC))	Size	Mount
750318961	SPEC	–	7 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP STP Download_STP_070-5899 (rev1).STEP \| 1.3 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	Active Clamp Forward	33 - 57 V (DC)	5	19	–	–	12	66	4:1:2.5	–	1500	EFD20	SMT
750318962	SPEC	–	7 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP STP Download_STP_070-5899 (rev1).STEP \| 1.3 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	Active Clamp Forward	33 - 57 V (DC)	12	8	–	–	12	66	1.6:1:1:1	–	1500	EFD20	SMT
750319033	SPEC	–	7 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP STP Download_STP_070-5899 (rev1).STEP \| 1.3 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	Active Clamp Forward	33 - 57 V (DC)	5	14.6	–	–	12	66	4:1:2.5	–	1500	EFD20	SMT
750319034	SPEC	–	7 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP STP Download_STP_070-5899 (rev1).STEP \| 1.3 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	Active Clamp Forward	33 - 57 V (DC)	12	6	–	–	12	66	1.6:1:1:1	–	1500	EFD20	SMT
750319020	SPEC		9 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP IGS 070-4476 (rev1).IGS \| 3.3 MB STP 070-4476 (rev1).STEP \| 1.5 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Others ZIP WRL 070-4476 (rev1).wrl \| 201 KB Download all 9 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	CCM Flyback	33 - 57 V (DC)	5	19	–	–	12	17	5:1:2.5	11.4	1500	EFD25	SMT
750319036	SPEC		7 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP STP Download_STP_070-5899 (rev1).STEP \| 1.3 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	CCM Flyback	33 - 57 V (DC)	12	6	–	–	12	16	2.33:1:1	10.4	1500	EFD20	SMT
750319069	SPEC		7 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP STP Download_STP_070-5899 (rev1).STEP \| 1.3 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	CCM Flyback	33 - 57 V (DC)	24	3	–	–	12	16	2:1.86:1	10.4	1500	EFD20	SMT
750319021	SPEC		9 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP IGS 070-4476 (rev1).IGS \| 3.3 MB STP 070-4476 (rev1).STEP \| 1.5 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Others ZIP WRL 070-4476 (rev1).wrl \| 201 KB Download all 9 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	CCM Flyback	33 - 57 V (DC)	12	8	–	–	12	22	2.4:1:1	10.8	1500	EFD25	SMT
750319032	SPEC		9 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP IGS 070-4476 (rev1).IGS \| 3.3 MB STP 070-4476 (rev1).STEP \| 1.5 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Others ZIP WRL 070-4476 (rev1).wrl \| 201 KB Download all 9 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	CCM Flyback	33 - 57 V (DC)	24	4	–	–	12	22	2.4:2:1	10.8	1500	EFD25	SMT
750319035	SPEC		7 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP STP Download_STP_070-5899 (rev1).STEP \| 1.3 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	CCM Flyback	33 - 57 V (DC)	5	14.6	–	–	12	16	4.67:1:2.33	10.4	1500	EFD20	SMT
750310042	SPEC	–	9 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP 3D 3D_070-2609 (rev1).PDF \| 33.3 KB IGS Download_IGS_070-2609 (rev1).IGS \| 1.4 MB STP Download_STP_070-2609 (rev1).STEP \| 622.3 KB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Others ZIP WRL Download_WRL_070-2609 (rev1).wrl \| 96 KB Download all 9 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	Forward	30 - 57 V (DC)	12	5	-12	1.6	12	154	2:1:1:1	–	1500	EFD20	THT
750313355	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 19/05/2025 SPEC Datasheet valid from 20/05/2025 PCN PCN document	–	8 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP 3D 3D_070-5899 (rev1).PDF \| 51 KB STP Download_STP_070-5899 (rev1).STEP \| 1.3 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	Forward	36 - 72 V (DC)	12	5	–	–	12	100	2:1:1	–	1500	EFD20	SMT
750313095	SPEC	–	9 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP 3D 3D_070-4275 (rev1).PDF \| 51.9 KB IGS Download_IGS_070-4275 (rev1).IGS \| 2.7 MB STP Download_STP_070-4275-0169 (rev1).STEP \| 1.3 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Others ZIP WRL Download_WRL_070-4275 (rev1).WRL \| 159.7 KB Download all 9 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	Forward	40 - 57 V (DC)	5	17	–	–	10.75	175	3.5:1:2.25	–	2400	EFD20	SMT
750343164	SPEC	–	10 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP 3D 3D_250-1103 (rev1).PDF \| 35.9 KB IGS Download_IGS_250-1103 (rev1).IGS \| 1.1 MB STP Download_STP_250-1103 (rev1).STEP \| 550.4 KB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Others ZIP WRL Download_WRL_250-1103 (rev1).WRL \| 147 KB Download all 10 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	Forward	40 - 57 V (DC)	5	14	–	–	12	153	4:4:1:1:5	–	2250	ER19/4.8/15	SMT
750316334	SPEC		8 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP IGS Download_IGS_070-6782 (rev1).IGS \| 2.4 MB STP Download_STP_070-6782 (rev1).STEP \| 1.1 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Others ZIP WRL Download_WRL_070-6782 (rev1).wrl \| 416.9 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	Forward	36 - 57 V (DC)	3.3	18	–	–	12	50	7:1:3.5	–	1500	EPW15	SMT
750316335	SPEC		8 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP IGS Download_IGS_070-6782 (rev1).IGS \| 2.4 MB STP Download_STP_070-6782 (rev1).STEP \| 1.1 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Others ZIP WRL Download_WRL_070-6782 (rev1).wrl \| 416.9 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	Forward	36 - 57 V (DC)	5	14	–	–	12	50	4:1:2.33	–	1500	EPW15	SMT
750316336	SPEC		8 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP IGS Download_IGS_070-6782 (rev1).IGS \| 2.4 MB STP Download_STP_070-6782 (rev1).STEP \| 1.1 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Others ZIP WRL Download_WRL_070-6782 (rev1).wrl \| 416.9 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	Forward	36 - 57 V (DC)	12	6	–	–	12	50	2:1:1	–	1500	EPW15	SMT
750343576	SPEC	–	10 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP 3D 3D_250-1103 (rev1).PDF \| 35.9 KB IGS Download_IGS_250-1103 (rev1).IGS \| 1.1 MB STP Download_STP_250-1103 (rev1).STEP \| 550.4 KB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Others ZIP WRL Download_WRL_250-1103 (rev1).WRL \| 147 KB Download all 10 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	Forward	40 - 57 V (DC)	24	3	–	–	12	100	4:4:4:4:4	–	2250	ER19/4.8/15	SMT
750341794	SPEC	–	5 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Download all 5 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	Forward	37 - 57 V (DC)	12	6	–	–	12	153	4:4:2:2:4	–	2250	ER19/4.8/15	SMT
750318938	SPEC	–	8 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP 3D 3D_070-5899 (rev1).PDF \| 51 KB STP Download_STP_070-5899 (rev1).STEP \| 1.3 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	Forward	36 - 72 V (DC)	5	12	–	–	13	150	4:1:2.6	–	1500	EFD20	SMT
750320237	SPEC	–	7 files EDA models: Components ZIP ALT Altium_WE-PoE++ (rev24c).IntLib \| 906.5 KB CDS Cadence_WE-POE++ (rev24c).zip \| 5.4 MB EAG Eagle_WE-POE-Plus-Plus (rev24b).lbr \| 141 KB CAD files ZIP 3D 3D_070-5899 (rev1).PDF \| 51 KB STP Download_STP_070-5899 (rev1).STEP \| 1.3 MB Electric models ZIP LT LTSpice_WE-PoE (rev24b).zip \| 84.5 KB PSP PSpice_WE-PoE (rev24b).zip \| 36 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	Forward	36 - 57 V (DC)	24	2.5	–	–	12	100	2:2:1	1.8	1500	EFD20	SMT

Order Code	Datasheet	Simulation
750318961	SPEC	–
750318962	SPEC	–
750319033	SPEC	–
750319034	SPEC	–
750319020	SPEC
750319036	SPEC
750319069	SPEC
750319021	SPEC
750319032	SPEC
750319035	SPEC
750310042	SPEC	–
750313355	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 19/05/2025 SPEC Datasheet valid from 20/05/2025 PCN PCN document	–
750313095	SPEC	–
750343164	SPEC	–
750316334	SPEC
750316335	SPEC
750316336	SPEC
750343576	SPEC	–
750341794	SPEC	–
750318938	SPEC	–
750320237	SPEC	–

Samples

	Order Code	Datasheet	Simulation	Downloads	Status	Version	V_IN	V_Out1 (V)	I_Out1 (A)	V_Out2 (V)	I_Out2 (A)	V_aux (V)	L (µH)	n	I_SAT (A)	V_T (V (AC))	Size	Mount	Samples

Products of interest

WE-PoEH Power over Ethernet High Power Transformer

Characteristics

Applications

Application Notes

Products

PCN pending

PCN pending

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