IS15SACP4CF Equivalent & Substitute Parts

Part Overview

The IS15SACP4CF is a programmable display switch from NKK Switches' SmartDisplay™ series, featuring an integrated LCD with SPST-NO switching capability rated at 0.1A @ 12VDC. This through-hole mounted pushbutton combines a yellow STN positive display with red-green LED indicators in a compact 19.0mm × 18.0mm form factor. The part is currently obsolete, making equivalent substitutes necessary for ongoing system support and new designs requiring similar functionality.

Substiute Parts

IS15SACP4CF

NKK SwitchesIn Stock: 1017IS15SACP4CF Datasheet

Current PartRFQ

IS15BSAFP4CF

NKK SwitchesIn Stock: 1214IS15BSAFP4CF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The IS15BSAFP4CF qualifies as a direct substitute for the IS15SACP4CF based on the following critical parameters:

• Circuit Configuration: Both parts maintain SPST-NO switching topology
• Contact Rating: Identical 0.1A @ 12VDC electrical specification
• Supply Voltage Range: Both operate within 3.0 ~ 5.5VDC
• Mounting & Termination: Matching through-hole PC pin configuration
• Face Dimensions: Identical 19.0mm L × 18.0mm W footprint
• Pixel Format: Both feature 36 × 24 pixel display resolution
• Travel Range: Consistent 1.8mm actuation distance
• Switch Function: Identical Off-Mom operation

The substitute part maintains functional and mechanical compatibility while offering enhanced specifications in display technology and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The IS15BSAFP4CF is the appropriate substitute for the obsolete IS15SACP4CF. Selection is based on the following factors:

Product Status: The IS15BSAFP4CF maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete main part.

Compliance & Certifications: Both parts share identical REACH and ECCN classifications, maintaining regulatory compliance across applications. The substitute achieves RoHS3 compliance, providing enhanced environmental standards alignment.

Electrical Compatibility: Identical circuit topology, contact ratings, and supply voltage specifications ensure direct functional substitution without circuit redesign.

Mechanical Compatibility: Matching face dimensions, mounting type, and PC pin termination enable direct board-level replacement without layout modifications.

Performance Enhancements: The substitute offers expanded operating temperature range (-15°C ~ 50°C versus 0°C ~ 40°C) and reduced operating force (173gf versus 224gf), providing improved usability and thermal flexibility for extended environmental applications.

Display Technology: The FSTN positive display mode in the substitute provides improved contrast and viewing characteristics compared to the STN positive display of the main part, with a larger viewing area (14.5mm × 11.8mm versus 13.0mm × 10.7mm).

Frequently Asked Questions (FAQ)

Q: Can IS15BSAFP4CF directly replace IS15SACP4CF on existing PCBs?

A: Yes. Both parts share identical face dimensions (19.0mm × 18.0mm), through-hole mounting configuration, and PC pin termination. No PCB layout modifications are required.

Q: Are the electrical specifications identical between these parts?

A: The critical electrical specifications are identical: SPST-NO circuit, 0.1A @ 12VDC contact rating, and 3.0 ~ 5.5VDC supply voltage. LED forward current specifications match at 15mA per channel. LED forward voltage differs slightly (2.1-2.2VDC versus 1.9VDC), which is within typical circuit tolerance margins.

Q: What is the difference in display technology?

A: The main part uses yellow STN positive display technology, while the substitute uses black and white FSTN positive technology. FSTN provides superior contrast and viewing angle characteristics. The substitute also offers a larger viewing area (14.5mm × 11.8mm versus 13.0mm × 10.7mm) while maintaining the same 36 × 24 pixel resolution.

Q: Does the operating force difference affect compatibility?

A: The substitute requires lower operating force (173gf versus 224gf). This represents improved ergonomic performance and reduced actuation effort. Existing circuit designs require no modification, as the switch function (Off-Mom) and electrical ratings remain unchanged.

Q: What is the temperature operating range difference?

A: The main part operates from 0°C ~ 40°C, while the substitute operates from -15°C ~ 50°C. The substitute provides extended low-temperature capability and higher temperature tolerance, suitable for broader environmental applications.

Q: Are packaging considerations different?

A: The main part is supplied in standard packaging, while the substitute is supplied in bulk packaging. Both maintain identical MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints for storage or handling.

Q: What compliance standards apply to both parts?

A: Both parts are REACH Unaffected and classified as EAR99 for export control purposes. The substitute additionally achieves RoHS3 compliance. Both share identical HTSUS classification (8536.50.9065).