SFH 4248-Z Equivalent & Substitute Parts

Part Overview

The SFH 4248-Z is an Infrared (IR) Emitter operating at 950nm wavelength, designed for surface mount applications in 4-PLCC packaging. This component delivers 100mW/sr radiant intensity at 100mA forward current with a 30° viewing angle and 1.5V typical forward voltage. The part is manufactured by ams-OSRAM USA INC. as part of the Power TOPLED® series.

The SFH 4248-Z is classified as Obsolete. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this infrared emitter specification.

Substiute Parts

SFH 4248-Z

ams-OSRAM USA INC.In Stock: 1114SFH 4248-Z Datasheet

Current PartRFQ

SFH 4248-VBW

ams-OSRAM USA INC.In Stock: 910SFH 4248-VBW Datasheet

MFR RecommendedRFQ

AREQ-93C0-QR000

Broadcom LimitedIn Stock: 1094AREQ-93C0-QR000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SFH 4248-Z are qualified based on the following electrical and mechanical parameters:

Primary Compatibility Criteria:

• Package / Case: 4-PLCC (identical form factor and pinout)
• Mounting Type: Surface Mount (identical assembly process)
• Current - DC Forward (If) (Max): 100mA (identical maximum operating current)
• Viewing Angle: 30° (identical optical field)
• Operating Temperature Range: -40°C ~ 100°C (identical thermal operating window)

Secondary Compatibility Criteria:

• Wavelength: 950nm ± tolerance (near-infrared spectrum compatibility)
• Voltage - Forward (Vf) (Typ): 1.5V nominal (circuit design compatibility)
• Radiant Intensity (Ie) Min @ If: Minimum 71mW/sr @ 100mA (functional output threshold)

Substitutes meeting all primary criteria and operating within secondary parameter tolerances are electrically and mechanically compatible with the SFH 4248-Z in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

SFH 4248-VBW (ams-OSRAM USA INC.)

The SFH 4248-VBW is the manufacturer-recommended substitute for the obsolete SFH 4248-Z. Both parts are manufactured by ams-OSRAM USA INC. within the Power TOPLED® series. The SFH 4248-VBW maintains identical electrical specifications (100mA maximum forward current, 1.5V typical forward voltage, 950nm wavelength, 30° viewing angle) and mechanical compatibility (4-PLCC package, surface mount, -40°C to 100°C operating range). The primary difference is packaging format: SFH 4248-VBW is supplied in Tape & Reel (TR) configuration versus Cut Tape (CT) for the original part. Both parts are ROHS3 Compliant with MSL 2 rating and REACH Unaffected status. The SFH 4248-VBW is currently Active in production status, ensuring long-term supply availability.

AREQ-93C0-QR000 (Broadcom Limited)

The AREQ-93C0-QR000 is a cross-manufacturer substitute manufactured by Broadcom Limited. This part operates at 940nm wavelength (10nm shorter than the SFH 4248-Z) with 1.6V typical forward voltage (0.1V higher). The AREQ-93C0-QR000 maintains identical maximum forward current (100mA), viewing angle (30°), operating temperature range (-40°C to 100°C), and 4-PLCC package configuration. Radiant intensity is 71.5mW/sr @ 100mA, which is lower than the original 100mW/sr specification. The AREQ-93C0-QR000 carries MSL 3 rating (168 Hours) compared to MSL 2 for the original part, requiring stricter moisture control during storage and assembly. This part is currently Active in production status. The wavelength and forward voltage differences require circuit-level evaluation for applications with strict spectral or voltage tolerance requirements.

Frequently Asked Questions (FAQ)

Q: Can the SFH 4248-VBW be used as a direct replacement for the SFH 4248-Z?

A: Yes. The SFH 4248-VBW is electrically and mechanically compatible with the SFH 4248-Z. Both parts share identical wavelength (950nm), maximum forward current (100mA), typical forward voltage (1.5V), viewing angle (30°), operating temperature range (-40°C to 100°C), and 4-PLCC package configuration. The primary difference is packaging format (Tape & Reel versus Cut Tape), which does not affect component performance. The SFH 4248-VBW is the manufacturer-recommended substitute.

Q: What are the key differences between the SFH 4248-Z and AREQ-93C0-QR000?

A: The AREQ-93C0-QR000 differs in three parameters: wavelength (940nm versus 950nm), forward voltage (1.6V versus 1.5V), and radiant intensity (71.5mW/sr versus 100mW/sr at 100mA). All other electrical and mechanical specifications remain compatible. The AREQ-93C0-QR000 also has a higher Moisture Sensitivity Level (MSL 3 versus MSL 2), requiring more stringent moisture control during storage and assembly.

Q: Is the 10nm wavelength difference between the SFH 4248-Z (950nm) and AREQ-93C0-QR000 (940nm) significant?

A: The 10nm difference places both parts within the near-infrared spectrum but at different points. Applications with wavelength-specific requirements (such as sensor calibration or optical filter matching) must evaluate whether 940nm operation is acceptable. Applications with broader spectral tolerance may accommodate this difference without performance impact.

Q: What does the MSL 3 rating on the AREQ-93C0-QR000 mean compared to MSL 2 on the SFH 4248-Z?

A: MSL 3 (168 Hours) indicates stricter moisture sensitivity than MSL 2 (1 Year). The AREQ-93C0-QR000 must be stored in controlled humidity conditions and has a shorter shelf life after packaging is opened. MSL 2 allows longer storage periods under standard conditions. Assembly processes must account for the shorter moisture exposure window for the AREQ-93C0-QR000.

Q: Are both substitute parts currently available in production?

A: Yes. Both the SFH 4248-VBW and AREQ-93C0-QR000 are classified as Active in production status, ensuring ongoing supply availability. The original SFH 4248-Z is Obsolete and no longer manufactured.

Q: Do both substitute parts meet RoHS and REACH compliance requirements?

A: The SFH 4248-VBW is ROHS3 Compliant and REACH Unaffected. The AREQ-93C0-QR000 is REACH Unaffected; RoHS status is not specified in available documentation. Both parts carry EAR99 ECCN classification and HTSUS code 8541.41.0000.

Q: Can the SFH 4248-VBW and AREQ-93C0-QR000 be used interchangeably in the same circuit?

A: Both parts are mechanically compatible (4-PLCC package, surface mount) and share identical maximum forward current (100mA), viewing angle (30°), and operating temperature range. However, the differences in wavelength (950nm versus 940nm), forward voltage (1.5V versus 1.6V), and radiant intensity (100mW/sr versus 71.5mW/sr) require circuit-level evaluation. Applications with strict spectral or output intensity requirements must assess whether these differences are acceptable for the intended function.