FDMC7692S-F126 Equivalent & Substitute Parts

Part Overview

The FDMC7692S-F126 is an N-Channel MOSFET manufactured by onsemi, part of the PowerTrench® series. This device is rated for 30V drain-to-source voltage with continuous drain current of 12.5A at Ta and 18A at Tc. The component is housed in an 8-PowerWDFN surface mount package (3.3x3.3mm) and is designed for applications requiring efficient switching and power management.

The FDMC7692S-F126 carries an Obsolete product status. Identification of equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for systems utilizing this MOSFET.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	30	V
Continuous Drain Current @ 25°C (Ta)	12.5	A
Continuous Drain Current @ 25°C (Tc)	18	A
On-State Drain-Source Resistance (Rds On Max)	9.3	mOhm
Gate-Source Voltage (Vgs Max)	±20	V
Gate Threshold Voltage (Vgs(th) Max)	3	V @ 1mA
Input Capacitance (Ciss Max)	1385	pF @ 15V
Gate Charge (Qg Max)	23	nC @ 10V
Power Dissipation (Ta)	2.3	W
Power Dissipation (Tc)	27	W
Operating Temperature Range	-55 to 150	°C (TJ)
Package Type	8-PowerWDFN (3.3x3.3)	Surface Mount
Moisture Sensitivity Level	1	Unlimited

Substitute Part Grouping Explanation

Substitution of the FDMC7692S-F126 is determined by electrical and mechanical parameter equivalence within the N-Channel MOSFET category. The primary substitution candidate is the FDMC7692S, which shares identical electrical specifications across all critical parameters: Vdss rating, continuous drain current, on-state resistance, gate charge, input capacitance, and operating temperature range. Both devices utilize the same 8-PowerWDFN package footprint and mounting technology.

The substitution logic is based on the following key parameters:

Drain-to-Source Voltage (Vdss): 30V
Continuous Drain Current: 12.5A (Ta) / 18A (Tc)
On-State Resistance (Rds On): 9.3mOhm @ 12.5A, 10V
Gate Charge (Qg): 23nC @ 10V
Input Capacitance (Ciss): 1385pF @ 15V
Package: 8-PowerWDFN (3.3x3.3)
Operating Temperature: -55°C to 150°C

The FDMC7692S maintains full electrical and mechanical compatibility with the FDMC7692S-F126, with the distinction that FDMC7692S carries Active product status and is available in higher inventory quantities.

Parameter Comparison

Parameter	FDMC7692S-F126	FDMC7692S	Unit
Manufacturer	onsemi	onsemi	—
FET Type	N-Channel	N-Channel	—
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	—
Drain to Source Voltage (Vdss)	30	30	V
Continuous Drain Current @ 25°C (Ta)	12.5	12.5	A
Continuous Drain Current @ 25°C (Tc)	18	18	A
Rds On (Max) @ Id, Vgs	9.3 @ 12.5A, 10V	9.3 @ 12.5A, 10V	mOhm
Vgs(th) (Max) @ Id	3 @ 1mA	3 @ 1mA	V
Gate Charge (Qg) (Max) @ Vgs	23 @ 10V	23 @ 10V	nC
Vgs (Max)	±20	±20	V
Input Capacitance (Ciss) (Max) @ Vds	1385 @ 15V	1385 @ 15V	pF
Power Dissipation (Max) (Ta)	2.3	2.3	W
Power Dissipation (Max) (Tc)	27	27	W
Operating Temperature	-55 to 150	-55 to 150	°C (TJ)
Mounting Type	Surface Mount	Surface Mount	—
Package / Case	8-PowerWDFN	8-PowerWDFN	—
Supplier Device Package	8-MLP (3.3x3.3)	8-MLP (3.3x3.3)	—
Product Status	Obsolete	Active	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	—
REACH Status	REACH Unaffected	REACH Unaffected	—
ECCN	EAR99	EAR99	—
HTSUS	8541.29.0095	8541.29.0095	—

Engineering Selection Recommendations

The FDMC7692S is the direct substitute for the FDMC7692S-F126. Both devices are manufactured by onsemi and exhibit identical electrical and mechanical specifications across all rated parameters. The primary distinction is product status: FDMC7692S-F126 is classified as Obsolete, while FDMC7692S maintains Active status with significantly higher inventory availability (24,090 units versus 1,040 units).

From a compliance perspective, both parts carry identical REACH and ECCN classifications (REACH Unaffected, EAR99), ensuring regulatory equivalence. Both devices maintain MSL Level 1 (Unlimited) moisture sensitivity rating, indicating no special handling requirements.

The FDMC7692S is available in Cut Tape (CT) and Digi-Reel® packaging formats, providing supply chain flexibility compared to the FDMC7692S-F126. For new designs or production continuity, the FDMC7692S is the appropriate selection due to its Active product status and superior availability.

Frequently Asked Questions (FAQ)

Q: Can the FDMC7692S directly replace the FDMC7692S-F126 in existing designs?

A: Yes. The FDMC7692S provides complete electrical and mechanical compatibility with the FDMC7692S-F126. All critical parameters—Vdss, drain current, on-state resistance, gate charge, input capacitance, and operating temperature range—are identical. The 8-PowerWDFN package footprint is unchanged, permitting direct PCB substitution without design modification.

Q: What is the primary reason for substituting the FDMC7692S-F126?

A: The FDMC7692S-F126 carries Obsolete product status, indicating discontinued manufacturing and limited inventory availability (1,040 units). The FDMC7692S maintains Active status with substantially higher inventory (24,090 units), ensuring long-term supply chain reliability and production continuity.

Q: Are there packaging differences between the two parts?

A: Both devices utilize the 8-PowerWDFN (3.3x3.3mm) surface mount package. The FDMC7692S is available in Cut Tape (CT) and Digi-Reel® formats, while the FDMC7692S-F126 packaging format is not specified in the provided data. The physical footprint and mounting requirements remain identical.

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

A: Yes. Both the FDMC7692S-F126 and FDMC7692S carry identical REACH Status (REACH Unaffected), ECCN classification (EAR99), and HTSUS code (8541.29.0095). Moisture Sensitivity Level is MSL 1 (Unlimited) for both devices, indicating no special storage or handling requirements.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by: Vdss (30V), continuous drain current (12.5A at Ta, 18A at Tc), on-state resistance (9.3mOhm @ 12.5A, 10V), gate charge (23nC @ 10V), input capacitance (1385pF @ 15V), gate-source voltage rating (±20V), and operating temperature range (-55°C to 150°C). All parameters are identical between the two devices.

Q: Is the FDMC7692S suitable for high-temperature applications?

A: Yes. The FDMC7692S maintains an operating temperature range of -55°C to 150°C (TJ), identical to the FDMC7692S-F126. This range supports applications requiring extended thermal performance within the specified junction temperature limits.

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