What is the typical lifespan of this product?

The product is designed for long-term industrial use, with a typical lifespan of over 50,000 hours.

Do you support OEM or custom specifications?

Yes, we support OEM, ODM, and custom technical specifications based on project requirements.

What certifications are available?

Certifications vary by model and may include CE, RoHS, LM-80, and ISO-compliant manufacturing.

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Queendom 3535 LED chip high lumen ceramic substrate SMD LED for medical instruments

3535 infrared LEDs

Name: 3535 infrared LEDs
Brand: QUEENDOM

Technical Specifications

3535 Infrared (IR) LEDs

Package Type: SMD (3535 size)
Package Dimensions: 3.5 mm × 3.5 mm
Available Wavelengths:
- 730 nm (730–750 nm)
- 850 nm (830–860 nm)
- 880 nm (870–890 nm)
- 940 nm (930–950 nm)
Forward Voltage (V_F): 1.4 V – 2.0 V (typical @ rated current)
Operating Current: 300 mA / 500 mA / 800 mA / 1200 mA (depending on rank)
Viewing Angle: 130° ± 5°
Optical Power Output: ~1 W – 3 W (estimated from radiant intensity and beam angle)
Substrate: High-thermal-conductivity ceramic (AlN or Al₂O₃)
Lens Material: Clear silicone (IR-transparent)
Operating Temperature: −40°C to +85°C
Storage Temperature: −40°C to +100°C
Absolute Maximum Ratings:
- Junction Temperature (T_j): +150°C
- ESD Withstand Voltage: ≥2 kV (HBM)
Compliance: RoHS 3, REACH, IEC/EN 62471 (Photobiological Safety – Risk Group 1)

Category: Infrared Emitters Tags: 3535, IR Emitter

Description

3535 Infrared (IR) LEDs

OVERVIEW

High-power SMD infrared LEDs in 3535 package (3.5 mm × 3.5 mm), designed for surveillance, industrial sensing, and machine vision.
Available at 730 nm, 850 nm, 880 nm, and 940 nm with radiant intensity up to 1670 mW/sr.
Ceramic substrate ensures excellent thermal dissipation for stable long-term operation.

Absolute Maximum Ratings (T_A = 25°C)

Table 1. Typical optical and electrical characteristics (T_j = 25°C)

Parameter	Symbol	Rating	Unit
Continuous Forward Current	I_F	1200	mA
Peak Forward Current (Pulse, ≤100μs, Duty ≤1%)	I_FP	1500	mA
Reverse Voltage	V_R	5	V
Junction Temperature	T_j	150	°C
Operating Temperature	T_OPR	−40 to +85	°C
Storage Temperature	T_STG	−40 to +100	°C
ESD Withstand Voltage (HBM)	—	≥2000	V

Note: Soldering temperature: 260°C ±10°C for 3–5 seconds.

Available Models & Part Numbers

Table 2. Typical Optical and Electrical Characteristics (T_j = 25°C).

Model	Rank Code	Color Type	Wavelength (nm)		Radiant Intensity (mW/sr）		Forward Voltage VF (V)		Viewing Angle	Test Current	Part Number
Device Model	Rank	Typical λ (nm)	Min	Max	Min	Max	Min	Max	(2θ½, °)	(mA)	P/N
HP3535IF2WE	SMDIL0800	730	730	750	150	230	1.40	2.00	130	300	8541401000SMDIL0800
HP3535IH2WE	SMDIL0801	850	830	860	180	290	1.40	2.00	130	300	8541401000SMDIL0801
HP3535IK2WE	SMDIL0802	880	870	890	150	180	1.40	2.00	130	300	8541401000SMDIL0802
HP3535IQ2WE	SMDIL0803	940	930	950	130	160	1.40	2.00	130	300	8541401000SMDIL0803
HP3535IF2WF	SMDIL0804	730	730	750	330	670	1.40	2.00	130	500	8541401000SMDIL0804
HP3535IH2WF	SMDIL0805	850	830	860	150	330	1.40	2.00	130	500	8541401000SMDIL0805
HP3535IK2WF	SMDIL0806	880	870	890	150	330	1.40	2.00	130	500	8541401000SMDIL0806
HP3535IF2WF	SMDIL0807	730	730	750	670	1070	1.40	2.00	130	800	8541401000SMDIL0807
HP3535IQ2WF	SMDIL0808	940	930	950	150	290	1.40	2.00	130	500	8541401000SMDIL0808
HP3535IH2WF	SMDIL0809	850	830	860	670	1070	1.40	2.00	130	800	8541401000SMDIL0809
HP3535IK2WF	SMDIL0810	880	870	890	670	1070	1.40	2.00	130	800	8541401000SMDIL0810
HP3535IQ2WF	SMDIL0811	940	930	950	490	870	1.40	2.00	130	800	8541401000SMDIL0811
HP3535IF2WG	SMDIL0812	730	730	750	1070	1670	1.40	2.00	130	1200	8541401000SMDIL0812
HP3535IH2WG	SMDIL0813	850	830	860	1070	1670	1.40	2.00	130	1200	8541401000SMDIL0813
HP3535IK2WG	SMDIL0814	880	870	890	1070	1670	1.40	2.00	130	1200	8541401000SMDIL0814
HP3535IQ2WG	SMDIL0815	940	930	950	870	1470	1.40	2.00	130	1200	8541401000SMDIL0815

APPLICATION

Security & Surveillance: Night-vision illumination for CCTV cameras (850 nm with faint red glow; 940 nm fully covert)
Industrial Sensing: Proximity detection, object counting, level sensing
Machine Vision: High-speed inspection, barcode reading, optical sorting
Automotive: In-cabin monitoring, gesture recognition, LiDAR auxiliary lighting
Consumer Electronics: Face ID, biometric sensors, smart home presence detection

ℹ️ APPLICATION NOTE:
These IR LEDs are ideal for night-vision security cameras, proximity sensors, industrial inspection, and optical switches.
• 850 nm: Visible faint red glow, high camera sensitivity
• 940 nm: Completely covert (no visible glow)
Use constant-current drivers and ensure adequate thermal management for long-term reliability.