QBLP601-IR2 Infrared Emitter 880nm Equivalent & Substitute Parts

Part Overview

The QBLP601-IR2 is an infrared (IR) emitter manufactured by QT Brightek (QTB) operating at 880nm wavelength with a maximum forward current of 50mA. This component is classified as Active product status and is RoHS3 compliant. The 0603 (1608 Metric) surface mount package makes it suitable for compact circuit designs requiring infrared emission in the 880nm spectrum.

Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility permits component interchangeability within specified electrical and mechanical parameters. The following equivalent parts maintain compatibility based on critical electrical characteristics and package specifications.

Substiute Parts

QBLP601-IR2

QT Brightek (QTB)In Stock: 4149QBLP601-IR2 Datasheet

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AP1608SF4C

KingbrightIn Stock: 2825AP1608SF4C Datasheet

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APT1608F3C

KingbrightIn Stock: 1982APT1608F3C Datasheet

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APT1608SF4C-PRV

KingbrightIn Stock: 10828APT1608SF4C-PRV Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QBLP601-IR2 is determined by the following critical parameters:

Primary Substitution Criteria:

• Wavelength: 880nm (exact match required for spectral compatibility)
• Current - DC Forward (If) Max: 50mA (identical rating)
• Voltage - Forward (Vf) Typical: 1.3V (identical rating)
• Package / Case: 0603 (1608 Metric) (identical form factor)
• Viewing Angle: 120° (identical beam pattern)
• Operating Temperature Range: -40°C to 85°C (identical thermal range)
• Mounting Type: Surface Mount (identical mounting method)
• RoHS Status: ROHS3 Compliant (identical compliance)

Acceptable Variation Parameter:

• Radiant Intensity (Ie) Min @ If: Substitute parts may exceed the minimum specification of 0.5mW/sr @ 20mA, as higher radiant intensity represents improved performance without circuit redesign requirements.

Parts that deviate from wavelength, current rating, voltage rating, package type, viewing angle, or temperature range are not considered direct substitutes and require circuit re-evaluation.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (880nm Wavelength):

AP1608SF4C and APT1608SF4C-PRV are direct electrical and mechanical substitutes for QBLP601-IR2. Both parts maintain identical wavelength (880nm), current rating (50mA), voltage rating (1.3V), viewing angle (120°), package type (0603/1608 Metric), and operating temperature range (-40°C to 85°C). Both are manufactured by Kingbright, carry Active product status, and maintain ROHS3 compliance with identical MSL ratings. The radiant intensity specification is higher in both substitutes (0.8mW/sr @ 20mA versus 0.5mW/sr @ 20mA), representing improved optical output without requiring circuit modification.

Conditional Substitute (940nm Wavelength):

APT1608F3C operates at 940nm wavelength, which differs from the QBLP601-IR2 specification of 880nm. This part is not a direct substitute due to wavelength deviation. Selection of APT1608F3C requires application-level verification that 940nm wavelength is acceptable for the intended infrared detection or transmission function. The forward voltage is also lower (1.2V versus 1.3V), which may affect circuit biasing. The viewing angle is wider (150° versus 120°), which represents a different beam pattern. This part should only be selected when the application explicitly permits 940nm operation.

Packaging Consideration:

APT1608F3C is supplied in Cut Tape (CT) & Digi-Reel® packaging, while QBLP601-IR2, AP1608SF4C, and APT1608SF4C-PRV are supplied in Tape & Reel (TR) format. Packaging selection depends on assembly process requirements and volume specifications.

Frequently Asked Questions (FAQ)

Q: Can AP1608SF4C be used as a direct replacement for QBLP601-IR2?

A: Yes. AP1608SF4C meets all critical electrical and mechanical specifications: 880nm wavelength, 50mA maximum forward current, 1.3V typical forward voltage, 120° viewing angle, 0603 (1608 Metric) package, and -40°C to 85°C operating temperature range. The radiant intensity is higher (0.8mW/sr @ 20mA versus 0.5mW/sr @ 20mA), which represents improved performance. Both parts are ROHS3 compliant with identical MSL ratings.

Q: What is the difference between APT1608SF4C-PRV and AP1608SF4C?

A: Both parts are electrically and mechanically identical: 880nm wavelength, 50mA current, 1.3V voltage, 0.8mW/sr radiant intensity, 120° viewing angle, and 0603 package. The primary difference is packaging format: APT1608SF4C-PRV is supplied in Tape & Reel (TR), while AP1608SF4C is also supplied in Tape & Reel (TR). Both are manufactured by Kingbright and carry Active product status.

Q: Why is APT1608F3C listed as a substitute if it operates at 940nm?

A: APT1608F3C is listed as a substitute option due to identical current rating (50mA), package type (0603/1608 Metric), mounting method (Surface Mount), and operating temperature range (-40°C to 85°C). However, the 940nm wavelength represents a spectral deviation from the 880nm specification. Selection of APT1608F3C requires application-level confirmation that 940nm wavelength is functionally acceptable. The forward voltage is also lower (1.2V), which may affect circuit design.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. QBLP601-IR2, AP1608SF4C, APT1608F3C, and APT1608SF4C-PRV are all ROHS3 compliant with identical Moisture Sensitivity Level (MSL) ratings of 3 (168 Hours).

Q: What is the impact of higher radiant intensity in substitute parts?

A: AP1608SF4C and APT1608SF4C-PRV specify 0.8mW/sr @ 20mA radiant intensity, compared to 0.5mW/sr @ 20mA for QBLP601-IR2. Higher radiant intensity indicates greater optical output power in the specified direction. This represents improved performance and does not require circuit redesign when substituting into applications designed for the QBLP601-IR2.

Q: Can packaging format affect component selection?

A: Yes. QBLP601-IR2, AP1608SF4C, and APT1608SF4C-PRV are supplied in Tape & Reel (TR) format suitable for automated assembly. APT1608F3C is supplied in Cut Tape (CT) & Digi-Reel® format. Packaging selection depends on assembly equipment compatibility and volume requirements. Tape & Reel format is standard for high-volume surface mount production.

Q: What are the compliance certifications for these parts?

A: All parts carry ROHS3 compliance, REACH Unaffected status, and ECCN classification of EAR99. HTSUS code is 8541.41.0000 for all parts. MSL rating is 3 (168 Hours) for all parts.