ECH8672-TL-H Equivalent & Substitute Parts

Part Overview

The ECH8672-TL-H is a dual P-channel MOSFET array manufactured by onsemi, designed for surface mount applications requiring logic level gate control. This device integrates two P-channel MOSFETs in a single 8-SMD package with a maximum drain-source voltage rating of 20V and continuous drain current capability of 3.5A at 25°C.

The ECH8672-TL-H carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

ECH8672-TL-H

onsemiIn Stock: 1147ECH8672-TL-H Datasheet

Current PartRFQ

ECH8654-TL-H

onsemiIn Stock: 20285ECH8654-TL-H Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECH8672-TL-H is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Configuration: 2 P-Channel (Dual) MOSFET array
• FET Feature: Logic Level Gate
• Drain to Source Voltage (Vdss): 20V
• Mounting Type: Surface Mount
• Package / Case: 8-SMD, Flat Lead
• Supplier Device Package: 8-ECH
• Operating Temperature: 150°C (TJ)

Allowable Substitution Criteria: Substitute parts must maintain or exceed the electrical performance of the ECH8672-TL-H in the following parameters:

• Current - Continuous Drain (Id) @ 25°C: minimum 3.5A
• Rds On (Max): equal to or lower than 85 mOhm at specified conditions
• Gate Charge (Qg) (Max): equal to or lower than 4 nC at 4.5V
• Input Capacitance (Ciss) (Max): equal to or lower than 320 pF at 10V
• Power - Max: minimum 1.5W

The ECH8654-TL-H meets all mandatory matching parameters and exceeds electrical performance specifications, making it a valid substitute for the obsolete ECH8672-TL-H.

Parameter Comparison

Engineering Selection Recommendations

The ECH8654-TL-H is the direct substitute for the obsolete ECH8672-TL-H based on the following engineering criteria:

Package and Pinout Compatibility: Both devices utilize the 8-ECH surface mount package with identical physical dimensions and flat lead configuration, ensuring direct PCB compatibility without layout modifications.

Electrical Performance: The ECH8654-TL-H provides superior electrical characteristics across multiple parameters. The continuous drain current rating increases from 3.5A to 5A, and the on-resistance decreases from 85 mOhm to 38 mOhm, resulting in reduced power dissipation and improved thermal performance in equivalent applications.

Product Status and Supply: The ECH8672-TL-H is classified as obsolete with limited remaining inventory. The ECH8654-TL-H maintains active product status with onsemi, ensuring long-term availability and continued manufacturing support.

Compliance and Certifications: The ECH8654-TL-H is RoHS3 compliant and maintains REACH unaffected status, consistent with the regulatory requirements of the original part. Both devices carry MSL 1 (Unlimited) moisture sensitivity classification.

Design Considerations: Applications currently utilizing the ECH8672-TL-H will operate within specification when migrated to the ECH8654-TL-H. The higher gate charge (11 nC versus 4 nC) and input capacitance (960 pF versus 320 pF) may require evaluation in high-frequency switching applications to confirm gate drive circuit adequacy, though these parameters remain within typical operating ranges for logic level gate MOSFETs in this voltage and current class.

Frequently Asked Questions (FAQ)

Q: Can the ECH8654-TL-H be used as a direct replacement for the ECH8672-TL-H without PCB modifications?

A: Yes. Both devices share identical package geometry (8-SMD, Flat Lead, 8-ECH), pinout configuration, and mounting type. Direct PCB substitution is possible without layout changes.

Q: What are the key differences between these two parts?

A: The ECH8654-TL-H provides higher continuous drain current (5A versus 3.5A) and lower on-resistance (38 mOhm versus 85 mOhm). The ECH8654-TL-H exhibits higher gate charge (11 nC versus 4 nC) and input capacitance (960 pF versus 320 pF). Both maintain identical voltage ratings, power dissipation limits, and operating temperature ranges.

Q: Is the ECH8654-TL-H suitable for applications requiring the exact electrical characteristics of the ECH8672-TL-H?

A: The ECH8654-TL-H exceeds the electrical performance specifications of the ECH8672-TL-H in current handling and on-resistance. Applications designed for the ECH8672-TL-H will operate within specification with the ECH8654-TL-H. However, applications with strict gate charge or input capacitance constraints should evaluate the higher values of the substitute part.

Q: What is the product status difference between these parts?

A: The ECH8672-TL-H is obsolete with limited inventory availability. The ECH8654-TL-H is an active product with full manufacturing support from onsemi, ensuring continued availability and supply chain reliability.

Q: Are there any compliance or certification differences?

A: The ECH8654-TL-H is RoHS3 compliant, while the ECH8672-TL-H compliance status is not specified. Both parts are REACH unaffected and carry MSL 1 (Unlimited) moisture sensitivity classification.

Q: Should gate drive circuit modifications be considered when substituting the ECH8654-TL-H?

A: The higher gate charge of the ECH8654-TL-H (11 nC versus 4 nC) may require evaluation of existing gate drive circuits in high-frequency switching applications. Standard logic level gate drive circuits designed for 4.5V operation will function with the ECH8654-TL-H, though switching speed characteristics may differ slightly due to increased capacitive loading.

Q: What packaging options are available for the ECH8654-TL-H?

A: The ECH8654-TL-H is supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes. The ECH8672-TL-H packaging format is not specified in available documentation.