Star LED Point Source LEDs | Products

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Dec 21, 2020 Products

Daido Steel has developed a surface mount device (SMD) with a high-power red point source LED for photoelectric sensors and optical encoders

We are a leading manufacturer of point source LEDs.

Over 20 years of experience in manufacturing and selling the point source LEDs for high-end industrial machinery and high precision sensors
Top-class market share in Japan
Widely sold in Europe, the United States and Asia

Star LED Features

High reliability

Small size light emitting window

Stable Lambertian light distribution

Product line up

Infrared Point source LEDs

Wave Length (nm)	Model name	Appearance	Dimenssion (μm)		Light Output (mW)	Cutoff Frequency (MHz)	Imax (mA) (DC,RT)	Operating temperature (℃)	Low stray light	Features	Catalog
Wave Length (nm)	Model name	Appearance	Light emitting window	Die size L x W x T	@50mA	@50mA ±20mA	Imax (mA) (DC,RT)	Operating temperature (℃)	Low stray light	Features	Catalog
855	MED8P51		170×50	590×370×250	2.0	-	80	-20~80	✕	Oval shape window	PDF:315KB
	MED8P53		φ60	370×270×250	2.0	45.0	80	-20~80	✕	Small window	PDF:318KB
	MED8P54		φ160	490×310×250	2.4	25.0	100	-20~80	✕	High reliability	PDF:315KB
	MED8P56A		φ160	510×350×250	2.4	25.0	100	-20~80	◯	Low stray light	PDF:358KB
	MED8P62		φ60	590×370×250	2.0	45.0	80	-20~80	✕	Ball lens mountable	PDF:322KB
	MED8P67A		φ60	400×300×250	2.0	45.0	80	-20~80	◯	Small window Low stray light	PDF:315KB
	MED8P73		φ60	370×270×250	2.0	45.0	80	-40~105	✕	105℃ operation	PDF:271KB
	MED8P74		φ160	490×310×250	2.4	25.0	100	-40~105	✕	105℃ operation	PDF:270KB
	MED8P75A		φ60	370×270×250	1.5	-	70	-40～125	◯	Small window、Low stray light、125℃ operation	【Preparation】
	MED8P77A		φ160	490×310×250	1.8	-	150	-40～125	◯	High reliability、Low stray light、125℃ operation	【Preparation】
Wave Length (nm)	Model name	Appearance	Dimenssion (μm)		Light Output (mW)	Cutoff Frequency (MHz)	Imax (mA) (DC,RT)	Operating temperature (℃)	Low stray light	Features	Catalog
Wave Length (nm)	Model name	Appearance	Light emitting window	Die size L x W x T	@20mA	@50mA ±20mA	Imax (mA) (DC,RT)	Operating temperature (℃)	Low stray light	Features	Catalog
855	MED8P59		φ35	370×270×250	0.7	-	30	-20~80	✕	Ultra small window	PDF:370KB
855	MED8P76A		φ45	370x270x250	0.6	-	55	-40~125	◯	Ultra small window、Low stray light、125℃ operation	【Preparation】

MED8P51	MED8P53	MED8P54	MED8P56A	MED8P62	MED8P67A	MED8P73	MED8P74	MED8P75A	MED8P77A	MED8P59	MED8P76A

Red Point source LEDs

Wave Length (nm)	Model name	Appearance	Dimenssion (μm)		Light Output (mW)	Cutoff Frequency (MHz)	Imax (mA) (DC,RT)	Operating temperature (℃)	Low stray light	Features	Catalog
Wave Length (nm)	Model name	Appearance	Light emitting window	Die size L x W x T	@20mA	@20mA ±10mA	Imax (mA) (DC,RT)	Operating temperature (℃)	Low stray light	Features	Catalog
650	MED7P2		φ160	490×310×250	1.0	-	50	-40~85	✕	High reliability	PDF:285KB
	MED7P4		150x40	490×310×250	0.9	-	25	-40~85	✕	Oval shape window	PDF:321KB
	MED7P5		φ150	370×220×180	0.9	-	50	-40~85	✕	High reliability	PDF:282KB
	MED7P7		φ80	320×220×200	0.9	45.0	25	-40~85	✕	Small window、High Speed	PDF:288KB
	MED7P14		φ160	520×340×150	2.0	-	50	-40~85	✕	High output	PDF:289KB
	MED7P14C		φ160	520×340×150	2.0	-	50	-40~85	◯	High output、Low stray light	PDF:362KB
Wave Length (nm)	Model name	Appearance	Dimenssion (μm)		Light Output (mW)	Cutoff Frequency (MHz)	Imax (mA) (DC,RT)	Operating temperature (℃)	Low stray light	Features	Catalog
Wave Length (nm)	Model name	Appearance	Light emitting window	Die size L x W x T	@60mA	@20mA ±10mA	Imax (mA) (DC,RT)	Operating temperature (℃)	Low stray light	Features	Catalog
650	MED7P25		φ170	520×340×150	9.0	-	80	-40~85	◯	High output、Low stray light	PDF:1,337KB

MED7P2	MED7P4	MED7P5	MED7P7	MED7P14	MED7P14C	MED7P25

LED Package

Type	Model name	Wave Length (nm)	Beam angle	Output power(mW)		Remarks	Catalog
Type	Model name	Wave Length (nm)	FWHM(°)	@20mA	@50mA	Remarks	Catalog
Surface Mount	MED7P14-SMF-1	650	130	5.7	-	Thin	PDF:359KB
	MED7P14-SMF-4		130	5.7	-	Lambertian light Distribution	PDF:387KB
	MED7P14C-SMF-5		130	5.7	-	Small package 、Lambertian light Distribution	PDF:402KB
	MED7P14C-SMF-7		130	4.5	-	Lambertian light Distribution	PDF:391KB
Can	MED8P53-M18F-2	855	120	-	2.0	TO-18 flat lens	-
	MED8P54-M46F-5		100	-	2.8	TO-46 flat lens	-
	MED8P54-M46L-2		4	-	4.0	TO-46 dome lens	-

<Surface moment>

Variety Line up

Wide Temperature budget

MED8P73
MED8P74
MED8P75A【Development】
MED8P77A【Development】
MED8P76A【Development】

Up to 125℃ operation is available

A comparison of derating curves

Low stray light

MED8P56A
MED8P67A
MED8P75A【Development】
MED8P77A【Development】
MED8P76A【Development】

Stray light suppression by a die side coating structure
Suitable for reflective encoders

Normal type

Low stray light type

High Power

MED7P14
MED7P14C
MED7P25

Wafer Bonding Technology

The MED7P14 and MED7P14C have improved the extraction efficiency of light by attaching a metal mirror to the lower layer of the emitting layer. They achieve twice the light output compared to previous products. Furthermore, we have developed the MED7P25, which offers even higher light output.
The new product MED7P25 has twice the output power of our current product MED7P14 and MED7P14C.
According to our measurement, MED7P25 has higher output power than other Point Source LED from major manufacturer.

I-L characteristics

l-V characteristics

Applications

The Star LED offers high reliability emitters for various industrial applications.
It enables higher resolution for optical encoders and high accuracy for photoelectric sensors.