Isolators

TLP291(Y-TP,SE

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ISOLATORS AND SOLID STATE RELAYS FOR ENHANCED SAFETY AND EFFICIENCY | TOSHIBA, PHOTOCOUPLER (PHOTOTRANSISTOR OUTPUT), DC INPUT, 3750 VRMS, SO4

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DocumentsTLP291(Y-TP,SE | Datasheet TLP291(SE Data sheet/Japanese +5

Isolators

TLP291(Y-TP,SE

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Toshiba Semiconductor and Storage

ISOLATORS AND SOLID STATE RELAYS FOR ENHANCED SAFETY AND EFFICIENCY | TOSHIBA, PHOTOCOUPLER (PHOTOTRANSISTOR OUTPUT), DC INPUT, 3750 VRMS, SO4

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DocumentsTLP291(Y-TP,SE | Datasheet TLP291(SE Data sheet/Japanese +5

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	TLP291(Y-TP,SE

Current - DC Forward (If) (Max) [Max]	50 mA
Current - Output / Channel [custom]	50 mA
Current Transfer Ratio (Max)	150 %
Current Transfer Ratio (Min)	50 %
Input Type	DC
Mounting Type	Surface Mount
Number of Channels [custom]	1
Operating Temperature [Max]	110 °C
Operating Temperature [Min]	-55 C
Output Type	Transistor
Package / Case	0.179 in, 4.55 mm
Package / Case	4-SOIC
Rise / Fall Time (Typ)	2 µs, 3 µs
Supplier Device Package	4-SO
Turn On / Turn Off Time (Typ)	3 µs
Vce Saturation (Max) [Max]	300 mV
Voltage - Forward (Vf) (Typ)	1.25 V
Voltage - Isolation	3750 Vrms

TLP291(SE Series

Part	Input Type	Current Transfer Ratio (Min)	Turn On / Turn Off Time (Typ)	Supplier Device Package	Vce Saturation (Max) [Max]	Rise / Fall Time (Typ)	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Package / Case	Output Type	Number of Channels [custom]	Current - DC Forward (If) (Max) [Max]	Current - Output / Channel [custom]	Current Transfer Ratio (Max) [Max]	Mounting Type	Voltage - Isolation	Voltage - Forward (Vf) (Typ)	Current Transfer Ratio (Min) [Min]	Current Transfer Ratio (Max)
Toshiba Semiconductor and Storage TLP291(BL-TP,SE	DC	200 %	3 µs	4-SO	300 mV	2 µs 3 µs	-55 C	110 °C	0.179 in 4.55 mm	4-SOIC	Transistor	1	50 mA	50 mA	600 %	Surface Mount	3750 Vrms	1.25 V
Toshiba Semiconductor and Storage TLP291(GB-TP,SE	DC		3 µs	4-SO	300 mV	2 µs 3 µs	-55 C	110 °C	0.179 in 4.55 mm	4-SOIC	Transistor	1	50 mA	50 mA	600 %	Surface Mount	3750 Vrms	1.25 V	100 %
Toshiba Semiconductor and Storage TLP291(TP,SE	DC	50 %	3 µs	4-SO	300 mV	2 µs 3 µs	-55 C	110 °C	0.179 in 4.55 mm	4-SOIC	Transistor	1	50 mA	50 mA	600 %	Surface Mount	3750 Vrms	1.25 V
Toshiba Semiconductor and Storage TLP291(GRH-TP,SE	DC	150 %	3 µs	4-SO	300 mV	2 µs 3 µs	-55 C	110 °C	0.179 in 4.55 mm	4-SOIC	Transistor	1	50 mA	50 mA	300 %	Surface Mount	3750 Vrms	1.25 V
Toshiba Semiconductor and Storage TLP291(GRL-TP,SE	DC		3 µs	4-SO	300 mV	2 µs 3 µs	-55 C	110 °C	0.179 in 4.55 mm	4-SOIC	Transistor	1	50 mA	50 mA	200 %	Surface Mount	3750 Vrms	1.25 V	100 %
Toshiba Semiconductor and Storage TLP291(BLL-TP,SE	DC	200 %	3 µs	4-SO	300 mV	2 µs 3 µs	-55 C	110 °C	0.179 in 4.55 mm	4-SOIC	Transistor	1	50 mA	50 mA		Surface Mount	3750 Vrms	1.25 V		400 %
Toshiba Semiconductor and Storage TLP291(V4GRTP,SE	DC		3 µs	4-SO	300 mV	2 µs 3 µs	-55 C	110 °C	0.179 in 4.55 mm	4-SOIC	Transistor	1	50 mA	50 mA	300 %	Surface Mount	3750 Vrms	1.25 V	100 %
Toshiba Semiconductor and Storage TLP291(YH-TP,SE	DC		3 µs	4-SO	300 mV	2 µs 3 µs	-55 C	110 °C	0.179 in 4.55 mm	4-SOIC	Transistor	1	50 mA	50 mA		Surface Mount	3750 Vrms	1.25 V	75 %	150 %
Toshiba Semiconductor and Storage TLP291(Y-TP,SE	DC	50 %	3 µs	4-SO	300 mV	2 µs 3 µs	-55 C	110 °C	0.179 in 4.55 mm	4-SOIC	Transistor	1	50 mA	50 mA		Surface Mount	3750 Vrms	1.25 V		150 %
Toshiba Semiconductor and Storage TLP291(V4GBTP,SE	DC		3 µs	4-SO	300 mV	2 µs 3 µs	-55 C	110 °C	0.179 in 4.55 mm	4-SOIC	Transistor	1	50 mA	50 mA	600 %	Surface Mount	3750 Vrms	1.25 V	100 %

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	22475	$ 0.47

Description

General part information

TLP291(SE Series

ISOLATORS AND SOLID STATE RELAYS FOR ENHANCED SAFETY AND EFFICIENCY | TOSHIBA, PHOTOCOUPLER (PHOTOTRANSISTOR OUTPUT), DC INPUT, 3750 VRMS, SO4

Documents

Technical documentation and resources

TLP291(Y-TP,SE

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TLP291(Y-TP,SE

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Technical Specifications

TLP291(SE Series

Pricing

Description

TLP291(SE Series

Documents

TLP291(Y-TP,SE | Datasheet

TLP291(SE Data sheet/Japanese

Application note for phototransistor coupler

Glossary of Photocoupler and Photorelay Terms

Photocouplers and Photorelays

Safety standards for photocouplers

Selection Guide Isolators and Solid State Relays 2025Rev1.0

TLP291(SE Series