SDP8436-001 Equivalent & Substitute Parts

Part Overview

The SDP8436-001 is a 900nm phototransistor manufactured by Honeywell Sensing and Productivity Solutions, designed for side view radial applications with through-hole mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The optical sensor operates across an industrial temperature range of -40°C to 85°C and is RoHS compliant.

Substiute Parts

SDP8436-001

Honeywell Sensing and Productivity SolutionsIn Stock: 956SDP8436-001 Datasheet

Current PartRFQ

PT928-6B-F

Everlight Electronics Co LtdIn Stock: 844PT928-6B-F Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SDP8436-001 is determined by the following critical parameters:

Mechanical Compatibility:

• Mounting Type: Through Hole, Right Angle
• Orientation: Side View
• Package / Case: Radial

Electrical Compatibility:

• Voltage - Collector Emitter Breakdown (Max): 30 V
• Current - Dark (Id) (Max): 100 nA
• Power - Max: 100 mW

Optical Characteristics:

• Wavelength: 900nm (near-infrared spectrum)
• Viewing Angle: 18°

Environmental & Compliance:

• Operating Temperature Range: -40°C ~ 85°C
• RoHS Compliance Status
• Moisture Sensitivity Level: 1 (Unlimited)

The PT928-6B-F from Everlight Electronics Co Ltd qualifies as a substitute based on matching mechanical form factor (through-hole radial side view), identical electrical ratings (30V breakdown, 100nA dark current), and compatible environmental specifications. The wavelength difference (940nm vs 900nm) represents a minor shift within the near-infrared spectrum and falls within acceptable tolerance for most optical sensing applications utilizing side-view phototransistors.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: PT928-6B-F

The PT928-6B-F from Everlight Electronics Co Ltd is the designated substitute for the obsolete SDP8436-001. This component maintains electrical and mechanical equivalence across all critical parameters. The PT928-6B-F is currently in active production status with 808 units available in inventory, ensuring supply chain continuity.

Compliance Considerations:

Both components meet RoHS requirements. The SDP8436-001 carries RoHS Compliant status, while the PT928-6B-F carries ROHS3 Compliant status and is REACH Unaffected, providing enhanced regulatory alignment for new designs.

Temperature Range Consideration:

The PT928-6B-F operates across -25°C to 85°C, compared to the SDP8436-001 range of -40°C to 85°C. Applications requiring operation below -25°C must evaluate this specification difference against system requirements.

Wavelength Specification:

The PT928-6B-F operates at 940nm versus the SDP8436-001 at 900nm. Both wavelengths fall within the near-infrared spectrum. System designs utilizing 900nm-specific optical filters or light sources require validation of 940nm compatibility.

Frequently Asked Questions (FAQ)

Q: Can the PT928-6B-F directly replace the SDP8436-001 in existing PCB designs?

A: Yes, the PT928-6B-F maintains identical mechanical form factor (through-hole radial side view) and electrical ratings (30V breakdown, 100nA dark current). No PCB layout modifications are required. Verify that optical system components (light sources, filters) are compatible with 940nm wavelength operation.

Q: What is the significance of the wavelength difference between 900nm and 940nm?

A: Both wavelengths operate in the near-infrared spectrum. The 40nm difference may affect optical coupling efficiency depending on the specific light source and optical filter characteristics in the application. System-level optical performance testing is necessary to confirm functional equivalence in the target application.

Q: Why is the operating temperature range different?

A: The PT928-6B-F specifies -25°C to 85°C, while the SDP8436-001 specifies -40°C to 85°C. If the application requires operation below -25°C, the PT928-6B-F may not be suitable. Verify minimum operating temperature requirements before selection.

Q: Are there any packaging differences between these components?

A: Both components use radial through-hole packages with right-angle side view orientation. The SDP8436-001 is specified as radial packaging, while the PT928-6B-F is specified as radial side view packaging. These designations describe the same physical form factor.

Q: What is the inventory status for these parts?

A: The SDP8436-001 (obsolete) has 860 units in stock. The PT928-6B-F (active) has 808 units in stock, ensuring availability for immediate procurement and future reorders.

Q: Are both components RoHS compliant?

A: Yes. The SDP8436-001 is RoHS Compliant. The PT928-6B-F is ROHS3 Compliant and REACH Unaffected, meeting current regulatory standards for new product designs.