ECH8652-TL-H Equivalent & Substitute Parts

Part Overview

The ECH8652-TL-H is a dual P-channel MOSFET array manufactured by onsemi, designed for surface mount applications requiring logic level gate control. This component integrates two P-channel MOSFETs in a single 8-SMD package with flat leads, rated for 12V drain-to-source voltage and 6A continuous drain current at 25°C.

The ECH8652-TL-H carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

ECH8652-TL-H

onsemiIn Stock: 2202ECH8652-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 ECH8652-TL-H is determined by the following critical parameters:

Configuration Match: Both the main part and substitute must maintain a dual P-channel MOSFET array configuration in the same 8-SMD, flat lead package format to ensure mechanical and electrical compatibility with existing PCB layouts.

Voltage and Current Ratings: The substitute part must support the application's voltage and current requirements. The ECH8652-TL-H operates at 12V Vdss with 6A continuous drain current. A substitute with higher voltage rating (such as 20V) remains compatible with 12V applications, as it provides additional design margin. However, a substitute with lower current rating requires circuit-level evaluation to confirm adequacy for the intended load.

On-Resistance (Rds On): The ECH8652-TL-H specifies 28mOhm maximum at 3A and 4.5V gate-source voltage. Substitutes with comparable or lower on-resistance maintain thermal performance and power dissipation characteristics within the 1.5W maximum power rating.

Gate Charge and Input Capacitance: These parameters affect switching speed and gate drive requirements. Substitutes with similar gate charge (11nC) and input capacitance values ensure compatible gate driver performance.

Package and Mounting: The 8-ECH surface mount package with flat leads is the controlling mechanical specification. All substitutes must use identical packaging to ensure PCB footprint compatibility.

Product Status and Compliance: Active product status with current manufacturing and supply availability is preferred for long-term design support. REACH and RoHS compliance status confirms regulatory alignment with current environmental standards.

Parameter Comparison

Engineering Selection Recommendations

ECH8654-TL-H as Primary Substitute

The ECH8654-TL-H is the recommended substitute for the obsolete ECH8652-TL-H. Both components share identical package geometry (8-SMD, flat lead), configuration (dual P-channel), and core electrical characteristics including gate charge and maximum power dissipation.

The ECH8654-TL-H provides a higher voltage rating (20V versus 12V), which ensures compatibility with 12V applications while offering additional design margin for transient voltage conditions. The 5A continuous drain current rating of the ECH8654-TL-H is lower than the ECH8652-TL-H's 6A rating; however, this difference is acceptable for applications where the load current does not exceed 5A at 25°C ambient conditions.

The on-resistance of the ECH8654-TL-H is 38mOhm at 3A and 4.5V, compared to 28mOhm for the ECH8652-TL-H. This 10mOhm increase results in proportionally higher power dissipation under identical load conditions. For applications operating near the 1.5W maximum power limit, thermal analysis is required to confirm the substitute remains within safe operating limits.

The ECH8654-TL-H carries an active product status with current manufacturing support, ensuring long-term availability and supply chain continuity. Both components maintain identical REACH and ECCN compliance classifications, confirming regulatory equivalence.

Frequently Asked Questions (FAQ)

Q: Can the ECH8654-TL-H directly replace the ECH8652-TL-H in existing designs?

A: The ECH8654-TL-H is mechanically and electrically compatible with the ECH8652-TL-H for applications where the load current does not exceed 5A. Both components use the identical 8-ECH surface mount package with flat leads, ensuring PCB footprint compatibility without layout modifications. The higher voltage rating (20V) of the ECH8654-TL-H is compatible with 12V applications. However, the increased on-resistance (38mOhm versus 28mOhm) results in higher power dissipation; thermal performance must be evaluated for applications operating near maximum power limits.

Q: What are the key differences between the ECH8652-TL-H and ECH8654-TL-H?

A: The primary differences are drain-to-source voltage rating (12V versus 20V), continuous drain current (6A versus 5A), and on-resistance (28mOhm versus 38mOhm at 3A, 4.5V). Gate charge and input capacitance are nearly identical, ensuring compatible gate drive performance. The ECH8654-TL-H is an active product, while the ECH8652-TL-H is obsolete.

Q: Does the higher voltage rating of the ECH8654-TL-H affect circuit performance?

A: The higher voltage rating does not negatively affect circuit performance in 12V applications. A 20V-rated device operates safely at 12V and provides additional margin against transient overvoltage conditions. No circuit modifications are required.

Q: How does the increased on-resistance of the ECH8654-TL-H impact power dissipation?

A: On-resistance directly affects power dissipation according to the relationship P = I²R. The 10mOhm increase in on-resistance (from 28mOhm to 38mOhm) results in proportionally higher power loss at the same drain current. For a 5A load, the power dissipation difference is approximately 0.25W. Applications operating near the 1.5W maximum power rating require thermal analysis to confirm the substitute remains within safe operating limits.

Q: Are the package and pinout identical between these two parts?

A: Yes. Both the ECH8652-TL-H and ECH8654-TL-H use the 8-ECH surface mount package with flat leads. The package geometry, pinout, and PCB footprint are identical, eliminating the need for layout modifications.

Q: What is the significance of the active product status of the ECH8654-TL-H?

A: Active product status indicates that the ECH8654-TL-H is currently manufactured, stocked, and supported by onsemi. This ensures long-term availability, consistent quality, and access to technical support. The obsolete status of the ECH8652-TL-H means manufacturing has been discontinued, and inventory is limited to existing stock.

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

A: No. Both components share identical REACH status (REACH Unaffected), ECCN classification (EAR99), and HTSUS codes (8541.29.0095). The ECH8654-TL-H carries RoHS3 compliance certification, confirming alignment with current environmental standards. Regulatory substitution is straightforward.

Q: What should be evaluated before selecting the ECH8654-TL-H as a substitute?

A: Verify that the application's maximum drain current does not exceed 5A at 25°C ambient conditions. Perform thermal analysis to confirm that the increased on-resistance does not cause power dissipation to exceed the 1.5W maximum rating under worst-case operating conditions. Confirm that the gate drive circuit is compatible with the identical gate charge specification (11nC at 4.5V).