XBB170S Equivalent & Substitute Parts

Part Overview

The XBB170S is an active solid-state relay (SSR) manufactured by IXYS Integrated Circuits Division, part of the OptoMOS® series. This SPST-NC (1 Form B) x 2 device is designed for switching applications with a maximum load current of 100 mA across a voltage range of 0–350 V. The component features surface mount packaging in an 8-SMD (0.300", 7.62mm) configuration with gull wing termination. Finding equivalent or substitute parts may be necessary due to supply constraints, design revisions, or specific application requirements while maintaining functional compatibility.

Substiute Parts

XBB170S

IXYS Integrated Circuits DivisionIn Stock: 2127XBB170S Datasheet

Current PartRFQ

AQW414EH

Panasonic Electric WorksIn Stock: 1452AQW414EH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The AQW414EH from Panasonic Electric Works (PhotoMOS™ AQW series) qualifies as a substitute for the XBB170S based on the following critical parameters:

Functional Equivalence Criteria:

• Identical circuit configuration: SPST-NC (1 Form B) x 2
• Matching output type: AC, DC switching capability
• Identical load current rating: 100 mA
• Compatible input voltage: 1.14 VDC (AQW414EH) vs. 1.2 VDC (XBB170S)
• Load voltage range: 0–400 V (AQW414EH) exceeds the 0–350 V requirement of XBB170S
• Superior on-state resistance: 35 Ohms (AQW414EH) vs. 50 Ohms (XBB170S)
• Identical package footprint: 8-pin configuration at 0.300" (7.62mm) spacing

Compliance Alignment:

• Both devices are ROHS3 compliant
• Both carry EAR99 ECCN classification
• Both share identical HTSUS code: 8536.41.0030

Design Consideration: The primary difference is mounting type: XBB170S uses surface mount (SMD) with gull wing termination, while AQW414EH uses through-hole (DIP) with PC pin termination. This substitution requires PCB redesign to accommodate the different mounting technology.

Parameter Comparison

Engineering Selection Recommendations

Both the XBB170S and AQW414EH are active products with current manufacturing status and full ROHS3 compliance. The AQW414EH provides electrical performance advantages, including lower on-state resistance (35 Ohms vs. 50 Ohms) and higher load voltage rating (400 V vs. 350 V), making it suitable for applications requiring improved efficiency or higher voltage margins.

Selection between these devices depends on mounting technology requirements. The XBB170S is specified for surface mount assembly with gull wing leads, while the AQW414EH requires through-hole mounting with PC pins. PCB layout and assembly process capabilities will determine which device is appropriate for a given application. Both devices meet identical functional requirements for SPST-NC switching at 100 mA load current with AC/DC output capability.

Frequently Asked Questions (FAQ)

Q: Can the AQW414EH directly replace the XBB170S without PCB modification?

A: No. While both devices share identical electrical specifications for circuit configuration, load current, and switching capability, they use different mounting technologies. The XBB170S requires surface mount assembly with gull wing termination, while the AQW414EH uses through-hole mounting with PC pins. PCB redesign is necessary to accommodate the different package footprint and termination style.

Q: Are the input voltage requirements compatible?

A: Yes. The AQW414EH requires 1.14 VDC input versus 1.2 VDC for the XBB170S. This 0.06 VDC difference is within typical design tolerances and does not affect functional compatibility in standard applications.

Q: Does the AQW414EH support the same load voltage range?

A: The AQW414EH supports 0–400 V, which exceeds the XBB170S specification of 0–350 V. This provides additional voltage margin and is fully compatible with applications designed for the XBB170S.

Q: What is the significance of the on-state resistance difference?

A: The AQW414EH has a maximum on-state resistance of 35 Ohms compared to 50 Ohms for the XBB170S. Lower on-state resistance reduces power dissipation and heat generation during switching operations, improving overall circuit efficiency.

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

A: Yes. Both the XBB170S and AQW414EH are rated for AC and DC output switching, making them suitable for either application type within their specified load current and voltage parameters.

Q: What are the compliance and regulatory considerations?

A: Both devices are ROHS3 compliant, carry EAR99 ECCN classification, and share identical HTSUS code 8536.41.0030. Both are unaffected by REACH regulations. Compliance status is equivalent between the two devices.