CSRS045V0-G Equivalent & Substitute Parts

Part Overview

The CSRS045V0-G is a Transient Voltage Suppressor (TVS) diode manufactured by Comchip Technology, designed for general-purpose power line protection applications. This component features a 5V reverse standoff voltage rating and is packaged in SOT-143 surface mount configuration. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and component procurement.

Substiute Parts

CSRS045V0-G

Comchip TechnologyIn Stock: 955CSRS045V0-G Datasheet

Current PartRFQ

NUP2202W1T2G

onsemiIn Stock: 61730NUP2202W1T2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CSRS045V0-G is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - Reverse Standoff (Typ): 5V (Max) — must match or exceed
• Type: Steering (Rail to Rail) — functional topology requirement
• Unidirectional Channels: 2 — channel configuration must be equivalent
• Power Line Protection: Yes — application capability requirement
• Mounting Type: Surface Mount — assembly compatibility
• Applications: General Purpose — functional classification

Secondary Compatibility Factors:

• Moisture Sensitivity Level (MSL): 1 (Unlimited) — handling and storage compatibility
• REACH Status: REACH Unaffected — regulatory compliance alignment
• Operating Temperature Range: -55°C ~ 150°C (TJ) — thermal operating envelope

The substitute part NUP2202W1T2G meets all primary substitution criteria. While the package form differs (SC-88/SC70-6/SOT-363 versus SOT-143), both are surface mount configurations suitable for equivalent circuit board integration. The substitute provides enhanced electrical performance characteristics including higher clamping voltage (20V), increased peak pulse current (8A), and greater peak pulse power (500W), making it suitable for applications requiring the CSRS045V0-G specifications.

Parameter Comparison

Engineering Selection Recommendations

The NUP2202W1T2G is the recommended substitute for the obsolete CSRS045V0-G based on the following engineering factors:

Product Status Alignment: The CSRS045V0-G is classified as obsolete, creating supply chain risk. The NUP2202W1T2G maintains active product status with established manufacturing and distribution channels, ensuring long-term component availability.

Regulatory Compliance: Both components maintain REACH Unaffected status. The NUP2202W1T2G additionally carries ROHS3 Compliance certification, providing enhanced regulatory alignment for modern manufacturing environments.

Electrical Equivalence: Both components share identical reverse standoff voltage (5V Max) and steering topology (Rail to Rail) with 2 unidirectional channels. The NUP2202W1T2G provides superior electrical performance with higher peak pulse power (500W versus 300W), supporting applications with more demanding transient protection requirements.

Thermal Operating Range: The CSRS045V0-G operates across -55°C to 150°C (TJ), while the NUP2202W1T2G operates across -40°C to 125°C (TJ). Applications requiring the full -55°C lower temperature limit require thermal analysis to confirm NUP2202W1T2G suitability.

Package Considerations: The package transition from SOT-143 to SC-88/SC70-6/SOT-363 requires PCB layout modification. Both are surface mount configurations with equivalent assembly compatibility.

Frequently Asked Questions (FAQ)

Q: Can the NUP2202W1T2G directly replace the CSRS045V0-G without circuit modification?

A: Electrical substitution is valid based on matching reverse standoff voltage (5V), steering topology, and 2-channel configuration. However, package geometry differs (SOT-143 versus SC-88/SC70-6/SOT-363), requiring PCB footprint redesign and layout adjustment.

Q: What is the significance of the operating temperature range difference?

A: The CSRS045V0-G supports -55°C minimum junction temperature, while the NUP2202W1T2G supports -40°C minimum. Applications operating below -40°C require thermal analysis to confirm the substitute meets system requirements.

Q: Are both components suitable for power line protection applications?

A: Yes. Both components are rated for power line protection with identical reverse standoff voltage (5V Max) and steering topology. The NUP2202W1T2G provides enhanced peak pulse power (500W versus 300W).

Q: What does "Steering (Rail to Rail)" topology mean for substitution purposes?

A: Steering topology indicates the TVS diode configuration protects signals between two rails. Rail-to-rail steering ensures both components function identically in this protection scheme, making them functionally equivalent for this application class.

Q: Does the higher peak pulse power of the NUP2202W1T2G affect circuit design?

A: The NUP2202W1T2G's higher peak pulse power (500W versus 300W) provides enhanced transient suppression capability. This represents improved performance and does not require circuit redesign for applications originally specified for the CSRS045V0-G.

Q: What is the impact of ROHS3 Compliance on the NUP2202W1T2G?

A: ROHS3 Compliance indicates the component meets Restriction of Hazardous Substances Directive requirements, supporting modern manufacturing and environmental standards. This provides regulatory advantage over the CSRS045V0-G for new designs.

Q: Are moisture sensitivity levels equivalent between the two components?

A: Yes. Both components carry MSL 1 (Unlimited) rating, indicating identical moisture handling and storage requirements with no practical moisture sensitivity constraints.