XBA170STR Equivalent & Substitute Parts

Part Overview

The XBA170STR is a solid-state relay manufactured by IXYS Integrated Circuits Division, configured as a SPST-NO/NC (1 Form A and B) surface mount component. This OptoMOS® device operates with a 1.2VDC input and supports load voltages from 0V to 350V at 100mA maximum load current. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.

Substiute Parts

XBA170STR

IXYS Integrated Circuits DivisionIn Stock: 2303XBA170STR Datasheet

Current PartRFQ

LBA110STR

IXYS Integrated Circuits DivisionIn Stock: 2229LBA110STR Datasheet

MFR RecommendedRFQ

AQW610EHAZ

Panasonic Electric WorksIn Stock: 3111AQW610EHAZ Datasheet

MFR RecommendedRFQ

LH1502BACTR

Vishay Semiconductor Opto DivisionIn Stock: 4221LH1502BACTR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the XBA170STR is determined by the following mandatory parameters:

• Circuit configuration: SPST-NO + SPST-NC (1 Form A and B)
• Package / Case: 8-SMD (0.300", 7.62mm)
• Mounting Type: Surface Mount
• Termination Style: Gull Wing
• Output Type: AC, DC
• Voltage - Load: 0V ~ 350V (minimum requirement)
• Input voltage compatibility: 1.2VDC nominal operation

All substitute parts listed maintain these core electrical and mechanical specifications. Load current and on-state resistance may vary within acceptable ranges for the application, provided the substitute meets or exceeds the original 100mA load current requirement and maintains compatible input voltage operation.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are active products with current manufacturing support, addressing the obsolescence status of the XBA170STR. Selection among the substitutes depends on application-specific requirements:

LBA110STR maintains IXYS OptoMOS® technology continuity with improved performance characteristics (120mA load current, 35 Ohms on-state resistance) and ROHS3 compliance. This option provides the closest technology family alignment.

AQW610EHAZ offers the lowest on-state resistance (25 Ohms) and represents Panasonic's PhotoMOS™ technology platform. Input voltage is slightly lower at 1.14VDC. ROHS3 compliance is confirmed with Not Applicable MSL rating.

LH1502BACTR provides the highest load current capability (150mA) and lowest on-state resistance (20 Ohms) from Vishay's LH1502 series. Input voltage is 1.26VDC. ROHS3 compliance and MSL 1 rating are specified.

All substitutes are electrically and mechanically compatible with the original XBA170STR footprint and functional requirements.

Frequently Asked Questions (FAQ)

Q: Can the XBA170STR be directly replaced with any of these substitutes?

A: Yes. All substitute parts maintain identical circuit configuration (SPST-NO + SPST-NC), package dimensions (8-SMD 0.300" / 7.62mm), mounting type (surface mount), and gull wing termination. Load voltage range (0V ~ 350V) and output type (AC, DC) are identical across all parts.

Q: What is the significance of the load current differences?

A: The XBA170STR is rated for 100mA maximum load current. All substitutes exceed this specification (LBA110STR: 120mA, AQW610EHAZ: 120mA, LH1502BACTR: 150mA), making them suitable for applications requiring the original 100mA capability and compatible with designs requiring higher current capacity.

Q: How do on-state resistance differences affect circuit performance?

A: Lower on-state resistance reduces voltage drop across the relay contacts during operation. The XBA170STR specifies 50 Ohms maximum. Substitutes offer improved performance: LBA110STR (35 Ohms), AQW610EHAZ (25 Ohms), and LH1502BACTR (20 Ohms). Applications sensitive to contact voltage drop benefit from lower resistance values.

Q: Are input voltage differences significant?

A: Input voltages are nominally similar (XBA170STR: 1.2VDC, LBA110STR: 1.2VDC, AQW610EHAZ: 1.14VDC, LH1502BACTR: 1.26VDC). All operate within standard logic-level input ranges and are compatible with typical control circuits. Verify specific driver circuit compatibility for critical applications.

Q: What is the impact of product status (obsolete vs. active)?

A: The XBA170STR is obsolete, indicating discontinued manufacturing and limited inventory availability. All substitute parts are active products with ongoing manufacturing support, ensuring long-term availability for production and future design revisions.

Q: Are there compliance or certification differences?

A: All substitutes are ROHS3 compliant. The AQW610EHAZ has Not Applicable MSL rating, while LBA110STR and LH1502BACTR specify MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.