CPC1317P Equivalent & Substitute Parts

Part Overview

The CPC1317P is a solid-state relay (SSR) manufactured by IXYS Integrated Circuits Division, part of the OptoMOS® series. This SPST-NO (1 Form A) device is designed for switching applications with a maximum load current of 150 mA across 0–70 V DC/AC loads. The CPC1317P features surface mount packaging (8-SMD, 0.300", 7.62mm) with gull wing termination and operates with a 1.2 VDC input signal.

The CPC1317P is classified as obsolete. Locating equivalent or substitute components is necessary for new designs, production continuity, or system upgrades where this part is no longer readily available through standard distribution channels.

Substiute Parts

CPC1317P

IXYS Integrated Circuits DivisionIn Stock: 794CPC1317P Datasheet

Current PartRFQ

LAA108

IXYS Integrated Circuits DivisionIn Stock: 2358LAA108 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CPC1317P is determined by the following critical parameters:

• Circuit Configuration: Must be SPST-NO (1 Form A) or functionally equivalent
• Input Voltage: Must accept 1.2 VDC control signal
• Output Type: Must support both AC and DC load switching
• Load Voltage Range: Must accommodate 0–70 V minimum; higher ratings are acceptable
• Load Current Capacity: Must support 150 mA minimum; higher ratings are acceptable
• On-State Resistance: Lower values indicate improved performance; 16 Ohms is the baseline
• Compliance: Must maintain ROHS3 compliance and REACH unaffected status

The LAA108 qualifies as a substitute based on these parameters. While it differs in mounting type (through hole vs. surface mount) and package style (8-DIP vs. 8-SMD), it exceeds the electrical performance requirements of the CPC1317P and maintains full regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The LAA108 is suitable as a substitute for the CPC1317P based on the following factors:

Electrical Performance: The LAA108 exceeds the electrical specifications of the CPC1317P. It supports a higher load voltage range (0–100 V vs. 0–70 V), double the load current capacity (300 mA vs. 150 mA), and half the on-state resistance (8 Ohms vs. 16 Ohms). These improvements ensure the LAA108 can handle all applications within the CPC1317P's operating envelope.

Input Compatibility: Both devices operate with identical 1.2 VDC input signals, ensuring direct control signal compatibility.

Regulatory Compliance: The LAA108 maintains ROHS3 compliance and REACH unaffected status, matching the CPC1317P's compliance profile. The LAA108 features superior moisture sensitivity (MSL 1 vs. MSL 3), indicating better environmental tolerance.

Product Status: The LAA108 is active in production, ensuring long-term availability and supply chain stability compared to the obsolete CPC1317P.

Design Consideration: The LAA108 uses through-hole mounting (8-DIP) rather than surface mount (8-SMD). PCB layout modifications are required to accommodate this package change. The LAA108 contains two independent SPST-NO switches; single-switch applications use one channel.

Frequently Asked Questions (FAQ)

Q: Can the LAA108 directly replace the CPC1317P on an existing PCB?

A: No. The CPC1317P uses surface mount packaging (8-SMD with gull wing termination), while the LAA108 uses through-hole packaging (8-DIP with PC pins). PCB redesign is necessary to accommodate the different footprint and mounting method.

Q: What is the significance of the LAA108 having two SPST-NO switches instead of one?

A: The LAA108 contains two independent 1 Form A switches within a single package. For single-switch applications, one channel is used and the other remains unused. This does not affect substitution suitability; the unused channel simply provides additional functionality if needed in future designs.

Q: Are the input voltage requirements identical between the CPC1317P and LAA108?

A: Yes. Both devices require 1.2 VDC input signals. Control circuitry requires no modification for this substitution.

Q: Why does the LAA108 have lower on-state resistance than the CPC1317P?

A: On-state resistance is a device characteristic determined by internal semiconductor design. The LAA108's 8 Ohm maximum resistance (vs. 16 Ohms for the CPC1317P) represents improved performance. Lower on-state resistance reduces power dissipation and heat generation during switching operations.

Q: Is the LAA108 suitable for applications requiring the full 0–70 V load voltage range of the CPC1317P?

A: Yes. The LAA108 supports 0–100 V load voltage, which encompasses the CPC1317P's 0–70 V range. All applications within the CPC1317P's voltage specification are compatible with the LAA108.

Q: What does MSL 1 (Unlimited) mean compared to the CPC1317P's MSL 3 (168 Hours)?

A: Moisture Sensitivity Level (MSL) indicates the maximum time a component can be exposed to ambient humidity before soldering. MSL 1 (Unlimited) means the LAA108 has no time restriction and can be stored indefinitely under standard conditions. The CPC1317P's MSL 3 (168 Hours) requires soldering within 168 hours of exposure to moisture. The LAA108 offers superior storage flexibility.

Q: Are both devices suitable for AC and DC load switching?

A: Yes. Both the CPC1317P and LAA108 are rated for AC and DC output switching, supporting both load types without modification.