Efuses

Overview

Protects against overcurrent, short circuit, overvoltage, reverse connection and surge events.

The precise and fast design of the eFuses enables real-time detection of faults and isolation of loads. It automatically resumes operation after the state is stable, and can protect against overcurrent, short circuit, overvoltage, reverse connection and surge events. The Silergy eFuses adopts a compact package design, which helps to improve system efficiency, reduce the number of components, and enhance overall stability.

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Product Type	In Production Pre-sample NRND
Application Type	Consumer Industrial Automotive
Vin (min) !(V)		Vin (max) !(V)
Iout (max) !(A)		Enable logic
Protection mode		Package

Products List

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Part number	Vin (min) !(V)	Vin (max) !(V)	Vabs cont. (max) !(V)	Iout (max) !(A)	Protection mode	Over current response	Current limit !(A)	Fault response	Ron (typ) !(mΩ)	Certification recognition	Iq (typ) !(uA)	Enable logic	Soft start	Features	Package	Operating temperature range!(°C)	Datasheet	Online Simulation
Matching parts：32					OVP OCP UVP OTP OCP VCP OTP VCP OVP	Current limiting Circuit breaker	Fixed Adjustable	Latch-off Auto-recovery Auto-Restart		UL2367 IEC62368-1 IEC62368-1 UL-US-2435031-0		Low High	Fixed Adjustable	VIN state indicate Reverse Blocking Prog.I_lim Withstand negative Input Voltage Programmable Current Limit Reverse blocking OCP alert OCP alert Programmable OUT Slew Rate Power good Output discharge，Reverse blocking OCP alert Output discharge Fault indicator 3.3V/5V/9V clamping voltage Programmable Current Limit 3.3V/5V/12V clamping voltage Programmable current limit 3.3V/5V Voltage Clamping	SOT23-6 SOT23-5 QFN5×5-32 QFN3×4-20 QFN2×2-9 QFN2×2-12 QFN2×2-10 DFN3×3-12 DFN3×3-10 DFN2×2-8 DFN2×2-6 DFN2x2-8	-40 to 85 -40 to 125	Y N

SY28892ZDEC	2.5	5.5	7	2	OCP, OTP	Current limiting	Adjustable	Auto-recovery	65		45	High	Fixed	Output discharge，Reverse blocking,OCP alert	DFN2×2-6	-40 to 125	N	Industrial
SY28876AQSC	2.7	18	30	5.3	OVP, OCP, UVP, OTP	Current limiting	Adjustable	Auto-recovery	42	UL2367, IEC62368-1	115	High	Adjustable	Reverse blocking	QFN3×4-20	-40 to 85	N	Consumer
SY28846BQSQ	2.7	18	30	5.3	OVP, OCP, UVP, OTP	Circuit breaker	Adjustable	Latch-off	42	UL2367,IEC62368-1	115	High	Adjustable	Reverse blocking	QFN3×4-20	-40 to 125	N	Industrial
SY28846AQSC	2.7	18	30	5.3	OVP, OCP, UVP, OTP	Current limiting	Adjustable	Auto-recovery	42	UL2367,IEC62368-1	115	High	Adjustable	Reverse blocking	QFN3×4-20	-40 to 125	N	Industrial
SY28481DCD	0.5	13.5	18	24	OCP	Circuit breaker	Adjustable	Latch-off	4.1		230	High	Adjustable	Output discharge	DFN3×3-12	-40 to 125	N	Industrial
SY28481CDCD	3	24	30	20	OCP	Circuit breaker	Adjustable	Latch-off	3.8		190	High	Adjustable	Power good	DFN3×3-12	-40 to 125	N	Industrial
SY28481BDCD	3	24	30	10	OCP	Circuit breaker	Adjustable	Latch-off	5.2		190	High	Adjustable	Power good	DFN3×3-12	-40 to 125	N	Industrial
SY28480QEQ	4.5	18	20	50	OCP, UVP, OTP	Current limiting	Adjustable	Auto-recovery	0.76		1440	High	Adjustable	Fault indicator, OCP alert	QFN5×5-32	-40 to 125	N	Industrial
SY28480BQEQ	4.5	18	20	50	OCP, UVP, OTP	Circuit breaker	Adjustable	Latch-off	0.76		1440	High	Adjustable	OCP alert	QFN5×5-32	-40 to 125	N	Industrial
SY20855CDBC	2.5	6.5	12	5	OCP,VCP,OTP	Current limiting	Fixed	Auto-recovery	40		50	High	Adjustable	3.3V/5V Voltage Clamping	DFN3×3-10	-40 to 85	N	Consumer
SY20855ADBC	2.5	6.5	12	5	OCP,VCP,OTP	Current limiting	Fixed	Auto-recovery	40		50	High	Adjustable	3.3V/5V Voltage Clamping	DFN3×3-10	-40 to 85	N	Consumer
SY20845FDBC	2.5	15	30	5	OCP,VCP,OTP	Current limiting	Adjustable	Auto-recovery	40		200	High	Adjustable	3.3V/5V/12V clamping voltage, Programmable Current Limit	DFN3×3-10	-40 to 85	N	Consumer
SY20845DDBC	2.5	15	30	5	OCP,VCP,OTP	Current limiting	Adjustable	Auto-recovery	40		200	High	Adjustable	3.3V/5V/9V clamping voltage, Programmable Current Limit	DFN3×3-10	-40 to 85	N	Consumer
SY20845CDBC	2.5	15	30	5	OCP,VCP,OTP	Current limiting	Adjustable	Auto-recovery	40		200	High	Adjustable	3.3V/5V/12V clamping voltage, Programmable Current Limit	DFN3×3-10	-40 to 85	N	Consumer
SY20845ADBC	2.5	15	30	5	OCP,VCP,OTP	Current limiting	Adjustable	Auto-recovery	40		200	High	Adjustable	3.3V/5V/12V clamping voltage, Programmable current limit	DFN3×3-10	-40 to 85	N	Consumer
SY20834DBC	2.5	15	30	4	OCP,VCP,OTP	Current limiting	Adjustable	Auto-recovery	50		200	High	Adjustable	3.3V/5V/12V clamping voltage, Programmable Current Limit	DFN3×3-10	-40 to 85	N	Consumer
SY20819ERYC	2.95	6.5	18	5	OCP,VCP,OTP	Current limiting	Adjustable	Auto-recovery	30		50	High	Adjustable	VIN state indicate,Reverse Blocking,Prog.I_lim, Withstand negative Input Voltage	QFN2×2-9	-40 to 85	N	Consumer
SY20818RYC	2.7	5.5	18	5	OCP, VCP, OTP	Current limiting	Adjustable	Auto-recovery	30		50	High	Adjustable	VIN state indicate,Reverse Blocking, Programmable Current Limit	QFN2×2-9	-40 to 85	N	Consumer
SY20817ATLC	2.5	16	18	5	OCP, OTP	Current limiting	Adjustable	Auto-recovery	30		62	High	Adjustable	Programmable OUT Slew Rate	QFN2×2-12	-40 to 85	N	Consumer
SQ24802K2DFD	4.2	16	18	5	OCP, OVP, OTP	Current limiting	Adjustable	Auto-Restart	31		72	High			DFN2x2-8	-40 to 125	N	Industrial

Selection Guide

Title	Date
Automotive_Solutions_Q1_2026	2026-03-06
Silergy_Catalog_Q1_2026	2026-02-09