SP1124T-01UTG Equivalent & Substitute Parts

Part Overview

The SP1124T-01UTG is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 24V reverse standoff voltage with a 42.9V typical clamping voltage and 20A peak pulse current capability in a compact 2-DFN surface mount package.

The SP1124T-01UTG is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this TVS diode specification.

Substiute Parts

SP1124T-01UTG

Littelfuse Inc.In Stock: 895SP1124T-01UTG Datasheet

Current PartRFQ

SP1124-01UTG

Littelfuse Inc.In Stock: 3790SP1124-01UTG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SP1124T-01UTG is determined by the following critical parameters:

• Voltage Rating: Reverse standoff voltage of 24V (Max) and clamping voltage within acceptable operational range
• Current Capability: Peak pulse current of 20A (8/20µs) minimum
• Package Type: 2-DFN (1.6x1) surface mount configuration
• Unidirectional Configuration: Single channel Zener TVS diode
• Operating Temperature Range: -40°C to 125°C
• Capacitance Specification: 130pF @ 1MHz

The SP1124-01UTG meets all substitution criteria. Both parts share identical reverse standoff voltage, peak pulse current rating, package geometry, and operating temperature specifications. The clamping voltage differential (42.9V vs. 44.7V) remains within acceptable tolerance for general-purpose protection applications.

Parameter Comparison

Engineering Selection Recommendations

The SP1124-01UTG is the direct substitute for the obsolete SP1124T-01UTG. Both components are manufactured by Littelfuse Inc. and share identical electrical and mechanical specifications with the exception of clamping voltage (2.9V differential) and product status.

The SP1124-01UTG carries Active product status, ensuring ongoing availability and supply chain support. This part is RoHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component procurement.

The SP1124-01UTG is available in Tape & Reel packaging with 3724 units in current inventory, providing immediate procurement capability for production requirements.

Frequently Asked Questions (FAQ)

Q: Can the SP1124-01UTG directly replace the SP1124T-01UTG in existing designs?

A: Yes. Both parts maintain identical reverse standoff voltage (24V), peak pulse current (20A), package configuration (2-DFN 1.6x1), and operating temperature range (-40°C to 125°C). The clamping voltage difference of 2.9V (42.9V vs. 44.7V) is within acceptable tolerance for general-purpose TVS applications.

Q: What is the significance of the product status change from Obsolete to Active?

A: The SP1124-01UTG is an active product with confirmed supply availability and ongoing manufacturer support. This ensures long-term procurement capability and access to technical documentation and support resources.

Q: Are there packaging differences between these parts?

A: Both parts use identical 2-DFN (1.6x1) surface mount packages. The SP1124T-01UTG was supplied in standard packaging, while the SP1124-01UTG is available in Tape & Reel format, which is standard for high-volume production environments.

Q: Do both parts meet the same regulatory compliance standards?

A: The SP1124-01UTG is certified RoHS3 Compliant and REACH Unaffected. Both parts share the same ECCN (EAR99) and HTSUS (8541.10.0080) classifications and maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the capacitance specification for these TVS diodes?

A: Both the SP1124T-01UTG and SP1124-01UTG have a capacitance of 130pF measured at 1MHz, which is relevant for high-frequency circuit applications and signal integrity considerations.