Request Quote
(Ships tomorrow)
SDP8604-301 Equivalent & Substitute Parts
Part Overview
The SDP8604-301 is a 935nm optical photo detector with logic output and open collector configuration, manufactured by Honeywell Sensing and Productivity Solutions. This component features a radial, 3-lead side-view package and operates across the temperature range of -40°C to 85°C. The product is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain functional and electrical compatibility for ongoing system support and new designs.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Wavelength | 935nm |
| Type | Photo Detector, Logic Output |
| Output Type | Open Collector |
| Operating Temperature Range | -40°C ~ 85°C |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | RoHS Compliant |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
Substitute Part Grouping Explanation
Substitution of the SDP8604-301 is determined by alignment across the following critical parameters: wavelength (935nm), sensor type (photo detector with logic output), output configuration (open collector), operating temperature range (-40°C to 85°C), and regulatory compliance (RoHS and REACH status).
The substitute parts are grouped into two functional categories:
Category 1: Open Collector Output Configuration Parts with open collector output directly match the SDP8604-301 electrical interface requirements. These include OPL530-OC, OPL550-OCA, and OPL551-OCA. These components maintain identical output logic behavior and are suitable for direct functional replacement in applications requiring open collector signal conditioning.
Category 2: Alternative Output Configurations Parts with push-pull or NPN output types (OPL530, OPL550, OPL550A, OPL551, OPL560, OPL561) operate at the same wavelength and temperature range but feature different output stage topologies. These are applicable in designs where output configuration flexibility exists or where signal conditioning circuitry can accommodate alternative logic levels.
All substitute parts are manufactured by TT Electronics/Optek Technology within the Photologic® series, maintain 935nm wavelength detection, support the identical -40°C to 85°C operating temperature range, and comply with RoHS3 and REACH requirements.
Parameter Comparison
| Part Number | Manufacturer | Wavelength | Type | Output Type | Package / Case | Operating Temperature | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|
| SDP8604-301 | Honeywell Sensing and Productivity Solutions | 935nm | Photo Detector, Logic Output | Open Collector | Radial, 3 Lead, Side View | -40°C ~ 85°C | Obsolete | RoHS Compliant |
| OPL530-OC | TT Electronics/Optek Technology | 935nm | Photo Detector, Logic Output | Open Collector | 3-SIP, Side View | -40°C ~ 85°C | Active | ROHS3 Compliant |
| OPL550-OCA | TT Electronics/Optek Technology | 935nm | Photo Detector, Logic Output | Open Collector | Side View | -40°C ~ 85°C | Active | ROHS3 Compliant |
| OPL551-OCA | TT Electronics/Optek Technology | 935nm | Photo Detector, Logic Output | Open Collector Inverter | Side View | -40°C ~ 85°C | Active | ROHS3 Compliant |
| OPL530 | TT Electronics/Optek Technology | 935nm | Photo Detector, Logic Output | NPN | 3-SIP, Side View | -40°C ~ 85°C | Active | ROHS3 Compliant |
| OPL550 | TT Electronics/Optek Technology | 935nm | Photo Detector, Logic Output | Push-Pull | Side View | -40°C ~ 85°C | Active | ROHS3 Compliant |
| OPL550A | TT Electronics/Optek Technology | 935nm | Photo Detector, Logic Output | Push-Pull | Side View | -40°C ~ 85°C | Active | ROHS3 Compliant |
| OPL551 | TT Electronics/Optek Technology | 935nm | Photo Detector, Logic Output | Push-Pull | Side View | -40°C ~ 85°C | Active | ROHS3 Compliant |
| OPL560 | TT Electronics/Optek Technology | 935nm | Photo Detector, Logic Output | Push-Pull | 3-SIP, Side View | -40°C ~ 85°C | Active | ROHS3 Compliant |
| OPL561 | TT Electronics/Optek Technology | 935nm | Photo Detector, Logic Output | Push-Pull | 3-SIP, Side View | -40°C ~ 85°C | Active | ROHS3 Compliant |
| OPL561-OC | TT Electronics/Optek Technology | 935nm | Photo Detector, Logic Output | Open Collector | 3-SIP, Side View | -40°C ~ 85°C | Active | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Substitutes (Direct Functional Replacement)
OPL530-OC, OPL550-OCA, and OPL551-OCA are the primary substitutes for the SDP8604-301. These components maintain open collector output configuration, matching the electrical interface of the original part. All three are active products with current manufacturing status, ensuring long-term availability and supply chain stability. These parts comply with ROHS3 and REACH requirements, meeting modern regulatory standards.
Secondary Substitutes (Output Configuration Adaptation Required)
OPL530, OPL550, OPL550A, OPL551, OPL560, and OPL561 operate at identical wavelength and temperature specifications but feature alternative output stages (NPN or push-pull). These components are suitable for applications where output signal conditioning circuitry can accommodate different logic levels or where design flexibility permits output stage modification.
Regulatory and Compliance Considerations
All substitute parts maintain REACH Unaffected status and comply with RoHS3 requirements, ensuring compatibility with current environmental and safety regulations. The SDP8604-301 is RoHS Compliant; substitute parts are ROHS3 Compliant, representing enhanced compliance standards. Moisture sensitivity level remains constant at MSL 1 (Unlimited) across all alternatives.
Availability and Supply Chain
All substitute parts are classified as active products with documented inventory levels ranging from 797 to 4804 units in stock, providing reliable component availability for production and design implementation.
Frequently Asked Questions (FAQ)
Q: Can OPL551-OCA directly replace SDP8604-301 in existing designs?
A: OPL551-OCA shares the same wavelength (935nm), operating temperature range (-40°C to 85°C), and open collector output configuration as the SDP8604-301. However, OPL551-OCA features an open collector inverter output, meaning the logic signal is inverted compared to the original part. Direct replacement requires verification that the receiving circuit accommodates inverted logic levels.
Q: What is the difference between OPL550-OCA and OPL551-OCA?
A: Both parts operate at 935nm with open collector output and identical temperature ranges. The primary distinction is the output logic inversion: OPL550-OCA provides standard open collector output, while OPL551-OCA provides open collector inverter output. Selection depends on the logic level requirements of the receiving circuit.
Q: Are all substitute parts available in the same package as SDP8604-301?
A: The SDP8604-301 uses a radial, 3-lead side-view package. Substitute parts employ different package configurations: OPL530-OC and OPL560/OPL561 use 3-SIP side-view packages, while OPL550-OCA and OPL551-OCA use generic side-view packages. Package differences may require PCB layout modifications or mechanical mounting adjustments.
Q: Do all substitute parts meet the same regulatory requirements as SDP8604-301?
A: All substitute parts comply with REACH Unaffected and ROHS3 requirements. The SDP8604-301 is RoHS Compliant; substitute parts are ROHS3 Compliant, representing an enhanced compliance standard. All parts maintain MSL 1 (Unlimited) moisture sensitivity level.
Q: Which substitute part offers the closest electrical match to SDP8604-301?
A: OPL530-OC and OPL550-OCA provide the closest electrical match, maintaining open collector output without logic inversion. Both operate at 935nm across the -40°C to 85°C temperature range and are active products with current manufacturing support.
Q: Can push-pull output parts (OPL550, OPL561) replace the open collector SDP8604-301?
A: Push-pull output parts operate at the same wavelength and temperature specifications but feature different output stage topology. These components are suitable only in applications where the receiving circuit is designed to accept push-pull logic levels rather than open collector signals. Circuit modification may be required.
Q: What inventory levels are available for substitute parts?
A: OPL551-OC offers the highest inventory at 4804 units. OPL530-OC provides 2690 units, OPL550 provides 2875 units, and OPL550-OCA provides 1387 units. Remaining alternatives range from 797 to 1931 units in stock.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts