TSH345ID Equivalent & Substitute Parts

Part Overview

The TSH345ID is a video amplifier buffer integrated circuit manufactured by STMicroelectronics, designed for buffer applications requiring three independent circuits in a 14-SOIC surface mount package. This device operates with a single supply voltage range of 4.5V to 5.5V and delivers a -3dB bandwidth of 36 MHz with an output current capability of 134 mA per channel.

The TSH345ID carries an obsolete product status. Locating equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications utilizing this buffer amplifier topology.

Substiute Parts

TSH345ID

STMicroelectronicsIn Stock: 1024TSH345ID Datasheet

Current PartRFQ

TSH345IDT

STMicroelectronicsIn Stock: 1362TSH345IDT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSH345ID is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Number of circuits: 3 independent buffer channels
• Bandwidth: 36 MHz (-3dB)
• Supply current: 44.6 mA
• Output current per channel: 134 mA
• Supply voltage range: 4.5V to 5.5V

Mechanical & Package Specifications:

• Package type: 14-SOIC (0.154", 3.90mm Width)
• Mounting type: Surface Mount
• Pin configuration: 14-pin

Compliance & Environmental:

• RoHS3 Compliance
• Moisture Sensitivity Level 1
• REACH Unaffected status

The TSH345IDT qualifies as a direct substitute based on identical electrical performance, package configuration, and compliance certifications. The primary distinction is packaging format (Tape & Reel versus bulk) and product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The TSH345IDT is a direct electrical and mechanical equivalent to the TSH345ID. Both devices share identical electrical specifications, package configuration, and compliance certifications (ROHS3, REACH Unaffected, MSL 1).

The TSH345IDT carries an Active product status, whereas the TSH345ID is classified as Obsolete. For new designs and ongoing production support, the TSH345IDT is the appropriate selection. The TSH345IDT is supplied in Tape & Reel packaging format, which is standard for automated assembly operations.

Both parts are manufactured by STMicroelectronics and maintain full compatibility at the electrical, mechanical, and regulatory levels. Selection between these parts should be based on packaging requirements and supply chain availability rather than technical performance considerations.

Frequently Asked Questions (FAQ)

Q: Can the TSH345IDT be used as a direct replacement for the TSH345ID in existing designs?

A: Yes. The TSH345IDT is electrically and mechanically identical to the TSH345ID. Both devices feature three buffer circuits, 36 MHz bandwidth, 134 mA output current per channel, and operate within the 4.5V to 5.5V supply range. The 14-SOIC package dimensions and pin configuration are identical, enabling direct substitution at the PCB level.

Q: What is the difference between TSH345ID and TSH345IDT?

A: The primary differences are product status and packaging format. The TSH345ID is classified as Obsolete and supplied in bulk packaging. The TSH345IDT is classified as Active and supplied in Tape & Reel (TR) format. All electrical specifications, performance parameters, and compliance certifications are identical.

Q: Why is the TSH345ID listed as Obsolete?

A: The TSH345ID carries an Obsolete product status designation. The TSH345IDT, with identical electrical and mechanical specifications, is the Active equivalent and is recommended for all new applications and ongoing production requirements.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both the TSH345ID and TSH345IDT are ROHS3 Compliant, REACH Unaffected, and carry Moisture Sensitivity Level 1 (Unlimited). Regulatory and environmental compliance is identical across both part numbers.

Q: What packaging formats are available?

A: The TSH345ID is supplied in bulk packaging. The TSH345IDT is supplied in Tape & Reel (TR) format, which is standard for automated surface mount assembly operations. Both use the 14-SOIC package with 0.154" (3.90mm) width.

Q: Are the pin configurations identical?

A: Yes. Both parts use the 14-pin SOIC package with identical pin assignments. PCB layouts designed for the TSH345ID require no modification to accommodate the TSH345IDT.