RSB27F2FHT106 Equivalent & Substitute Parts

Part Overview

The RSB27F2FHT106 is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by ROHM Semiconductor, designed for surface mount applications in the UMD3 package. This component provides electrostatic discharge (ESD) and transient overvoltage protection with a 24V reverse standoff voltage rating and 26.2V minimum breakdown voltage. The part is classified as "Not For New Designs," necessitating identification of active alternative components that maintain equivalent electrical and mechanical specifications for ongoing production and maintenance applications.

Substiute Parts

RSB27F2FHT106

ROHM SemiconductorIn Stock: 10247RSB27F2FHT106 Datasheet

Current PartRFQ

PESD2IVN24-UX

Nexperia USA Inc.In Stock: 13024PESD2IVN24-UX Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RSB27F2FHT106 is determined by the following critical parameters:

• Bidirectional Channels: Must equal 2
• Voltage - Reverse Standoff (Typ): Must equal 24V
• Voltage - Breakdown (Min): Must be within acceptable range (26.2V minimum for RSB27F2FHT106)
• Package / Case: Must be SC-70 or SOT-323 for mechanical compatibility
• Mounting Type: Must be Surface Mount
• Grade: Automotive grade preferred for consistency
• Qualification: AEC-Q101 certification required for automotive applications

The PESD2IVN24-UX from Nexperia USA Inc. meets all substitution criteria. This part maintains identical bidirectional channel configuration, equivalent 24V reverse standoff voltage, compatible SOT-323 package, automotive grade classification, and AEC-Q101 qualification. The substitute part is currently in active production status, addressing the obsolescence concern of the original component.

Parameter Comparison

Engineering Selection Recommendations

The PESD2IVN24-UX is a qualified substitute for the RSB27F2FHT106 based on the following engineering criteria:

Compliance and Certification: Both components maintain automotive grade classification and AEC-Q101 qualification, ensuring compatibility with automotive supply chain requirements and quality standards.

Electrical Equivalence: The substitute part maintains the critical 24V reverse standoff voltage and 2-channel bidirectional configuration. The breakdown voltage of 25.5V (minimum) is within acceptable tolerance relative to the original 26.2V specification, ensuring equivalent transient suppression performance in the target voltage range.

Package Compatibility: Both components utilize the SC-70/SOT-323 surface mount package, enabling direct mechanical substitution without PCB redesign or assembly process modification.

Production Status: The PESD2IVN24-UX is in active production, providing supply chain continuity and long-term availability compared to the original component's "Not For New Designs" status.

Additional Performance Characteristics: The substitute part provides documented clamping voltage (42V maximum) and peak pulse current (4.6A at 8/20µs) specifications, offering enhanced design documentation. The lower capacitance (14pF versus 30pF maximum) may provide improved high-frequency performance in certain applications.

Frequently Asked Questions (FAQ)

Q: Can the PESD2IVN24-UX directly replace the RSB27F2FHT106 without circuit modification?

A: Yes. Both components share identical bidirectional channel configuration, equivalent 24V reverse standoff voltage, and compatible SOT-323 surface mount packaging. No circuit redesign is required for direct substitution.

Q: What is the significance of the lower capacitance in the PESD2IVN24-UX?

A: The PESD2IVN24-UX exhibits 14pF capacitance at 1MHz compared to the RSB27F2FHT106's 30pF maximum. Lower capacitance reduces parasitic effects in high-frequency signal paths, potentially improving signal integrity in CAN bus and other high-speed communication applications.

Q: Are both components suitable for automotive applications?

A: Yes. Both the RSB27F2FHT106 and PESD2IVN24-UX carry automotive grade classification and AEC-Q101 qualification, meeting automotive industry reliability and quality standards.

Q: What is the difference in operating temperature specifications?

A: The RSB27F2FHT106 specifies a maximum junction temperature (TJ) of 150°C. The PESD2IVN24-UX specifies an ambient temperature (TA) range of -55°C to 150°C, providing a defined lower temperature limit and wider operational envelope.

Q: Why is the RSB27F2FHT106 marked "Not For New Designs"?

A: This designation indicates the component is in end-of-life status and is not recommended for new product development. The PESD2IVN24-UX, with active production status, is the appropriate choice for new designs requiring equivalent TVS diode functionality.

Q: Are there any packaging differences between these components?

A: Both components use SC-70/SOT-323 surface mount packages. The RSB27F2FHT106 is supplied in Cut Tape (CT) and Digi-Reel® packaging, while the PESD2IVN24-UX is supplied in Tape & Reel (TR) format. Both formats are compatible with standard surface mount assembly equipment.