SM24-02HTG Alternative / Equivalent / Replacement - YINT ESD24VAPB Cross Reference

YINT Electronics | Product Knowledge Draft | 24V CAN and rugged differential-bus protection

SM24-02HTG alternative searches are associated with CAN and other exposed differential buses. YINT pairs the Littelfuse model with ESD24VAPB, a 24V bidirectional two-channel array in SOT-23 with AEC-Q101 qualification and published 30kV air/contact ESD capability.

1. Replacement Overview

SM24-02HTG replacement evaluation should begin with the bus operating range and the fault conditions expected at the connector. CAN, CAN FD and industrial differential lines can experience common-mode movement, ESD and surge energy that are different from high-speed consumer interfaces. YINT ESD24VAPB is published with 24V working voltage, 300W peak pulse power, 10A peak current and 50V maximum clamping in SOT-23. It also carries AEC-Q101 qualification and 30kV air/contact IEC 61000-4-2 capability. These features make it a relevant candidate, but the design team must still compare leakage, capacitance, pulse waveform, temperature range and pin configuration with SM24-02HTG. Vehicle projects should follow the customers component-change and validation requirements.

2. YINT Candidate Profile

YINT ESD24VAPB is a 24V bidirectional two-channel array in SOT-23. Published values include 300W peak pulse power, 10A peak current, 50V maximum clamping, and 30kV air/contact IEC 61000-4-2 capability. The product is listed with AEC-Q101 qualification. Automotive projects should also review manufacturing, change-control and reliability documentation required by the customer. Record the approved vehicle network, test pulse, ambient range and assembly location in the component qualification file.

3. How to Compare SM24-02HTG and YINT ESD24VAPB

The official YINT mapping means that ESD24VAPB is a candidate for SM24-02HTG; it does not mean that either device can be exchanged without verification. First compare function, directionality, protected-line count, common pins and every pin assignment. Next check the package drawing, land pattern, component height and tape orientation. Then compare working voltage, breakdown or clamping behavior, leakage, capacitance, peak current, pulse waveform and temperature range under equivalent test conditions.

For high-speed links, add eye-diagram, return-loss or error-rate testing as appropriate. For automotive, industrial or long-cable ports, repeat the project ESD, surge and system-immunity tests. The approval should identify the exact PCB revision, firmware state, cable, enclosure and test level, preventing a result from one connector or product variant from being reused without evidence.

4. Application Scenarios

The following equipment categories are practical starting points for evaluating the cross-reference. The final decision must follow the electrical limits, interface speed and immunity level of the actual product.

• Automotive CAN and CAN FD nodes in body, lighting and gateway electronics.
• T-BOX and communication gateway modules connected to long vehicle harnesses.
• Industrial fieldbus and rugged I/O connectors exposed outside an enclosure.
• DALI and building-lighting controls that use exposed differential wiring.

5. Replacement Qualification Checklist

Use a controlled checklist so the sourcing decision remains traceable and repeatable:

1. Confirm the complete ordering code, protection function, line count and directionality.
2. Compare package drawings, land pattern, pinout, height and tape orientation.
3. Review voltage, current, leakage, capacitance and clamping under equivalent tests.
4. Approve AEC-Q101, industrial grade or other project qualifications separately.
5. Run ESD, surge and required signal-integrity tests on the target PCB.

6. Why Evaluate YINT Electronics

The reason to evaluate YINT ESD24VAPB for a SM24-02HTG replacement is that the relationship is recorded in YINT's public cross-reference database, giving purchasing and engineering teams one traceable model from which to work. YINT can help confirm current inventory, reel packing, samples, quotation and application conditions, and can support a parameter comparison when project information is provided.

• Public mapping: the relationship can be checked on the YINT website rather than relying on an informal list.
• Product coverage: YINT supplies ESD, TVS, surge-protection and EMI-filtering devices for coordinated interface sourcing.
• Sample and supply support: contact YINT to verify available quantity, lead time and sample arrangements.
• Controlled engineering review: final selection remains based on controlled data sheets and tests on the target board.

7. Frequently Asked Questions

8. Conclusion and Contact

YINT ESD24VAPB is the official cross-reference candidate identified for Littelfuse SM24-02HTG. It provides a practical starting point for supply continuity, second-source qualification or a new design review, while the final release must remain tied to verified data sheets and target-system testing. Before purchasing release, record the approved application, test evidence and complete ordering code in the bill-of-materials change record.