DMTH4002SCTB-13 Equivalent & Substitute Parts

Part Overview

The DMTH4002SCTB-13 is an N-Channel MOSFET manufactured by Diodes Incorporated, rated for 40V drain-to-source voltage with a continuous drain current of 192A at Tc. This surface mount device in TO-263AB (D2PAK) packaging is designed for high-current switching applications requiring low on-resistance performance. The part is currently in active production status with 1076 pieces available in inventory. Substitute parts are identified when equivalent electrical specifications, mechanical packaging, and compliance certifications align with the original component, enabling direct replacement in circuit designs without functional degradation.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	40	V
Continuous Drain Current (Id) @ 25°C	192	A (Tc)
On-Resistance (Rds On Max) @ 90A, 10V	3	mOhm
Gate Threshold Voltage (Vgs(th) Max) @ 250µA	4	V
Gate Charge (Qg Max) @ 10V	77.5	nC
Input Capacitance (Ciss Max) @ 20V	7180	pF
Power Dissipation (Max)	6 (Ta), 166.7 (Tc)	W
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	TO-263AB (D2PAK)	Surface Mount
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the DMTH4002SCTB-13 are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria include:

Electrical Parameters:

Drain-to-Source Voltage (Vdss): 40V
Continuous Drain Current (Id): 192A at Tc
On-Resistance (Rds On): 3mOhm @ 90A, 10V
Gate Threshold Voltage (Vgs(th)): 4V @ 250µA
Gate Charge (Qg): 77.5nC @ 10V
Input Capacitance (Ciss): 7180pF @ 20V
Power Dissipation: 6W (Ta), 166.7W (Tc)
Operating Temperature: -55°C to 175°C

Mechanical Parameters:

Package: TO-263AB (D2PAK), Surface Mount
Packaging Format: Tape & Reel (TR)

Compliance Parameters:

RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected
Product Status: Active

Substitute parts must match all electrical specifications, maintain identical package geometry and mounting type, and comply with the same regulatory standards. Parts meeting these criteria are electrically and mechanically interchangeable without circuit redesign.

Parameter Comparison

Parameter	DMTH4002SCTB-13	DMTH4002SCTBQ-13	Match
Manufacturer	Diodes Incorporated	Diodes Incorporated	Yes
FET Type	N-Channel	N-Channel	Yes
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	Yes
Vdss	40V	40V	Yes
Id @ 25°C	192A (Tc)	192A (Tc)	Yes
Rds On (Max) @ 90A, 10V	3mOhm	3mOhm	Yes
Vgs(th) (Max) @ 250µA	4V	4V	Yes
Qg (Max) @ 10V	77.5nC	77.5nC	Yes
Ciss (Max) @ 20V	7180pF	7180pF	Yes
Vgs (Max)	±20V	±20V	Yes
Power Dissipation (Max)	6W (Ta), 166.7W (Tc)	6W (Ta), 166.7W (Tc)	Yes
Operating Temperature	-55°C to 175°C (TJ)	-55°C to 175°C (TJ)	Yes
Package Type	TO-263AB (D2PAK)	TO-263AB (D2PAK)	Yes
Mounting Type	Surface Mount	Surface Mount	Yes
Packaging Format	Tape & Reel (TR)	Tape & Reel (TR)	Yes
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Yes
REACH Status	REACH Unaffected	REACH Unaffected	Yes
Product Status	Active	Active	Yes
Grade	Standard	Automotive (AEC-Q101)	Partial

Engineering Selection Recommendations

Both the DMTH4002SCTB-13 and DMTH4002SCTBQ-13 are active production parts from Diodes Incorporated with identical electrical and mechanical specifications. The primary distinction is that the DMTH4002SCTBQ-13 carries automotive-grade qualification (AEC-Q101), making it suitable for automotive applications requiring enhanced reliability and qualification documentation.

Selection Criteria:

For standard industrial and consumer applications, either part is suitable based on electrical equivalence and compliance status. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

For automotive applications, the DMTH4002SCTBQ-13 is the appropriate selection due to its AEC-Q101 qualification, which certifies the component for automotive-grade reliability and quality standards.

Inventory availability should be considered: DMTH4002SCTB-13 has 1076 pieces in stock, while DMTH4002SCTBQ-13 has 1004 pieces available.

Frequently Asked Questions (FAQ)

Q: Can DMTH4002SCTBQ-13 replace DMTH4002SCTB-13 in existing designs?

A: Yes. The DMTH4002SCTBQ-13 is electrically and mechanically equivalent to the DMTH4002SCTB-13. All electrical parameters, package geometry, and mounting specifications are identical. Direct substitution is possible without circuit modification.

Q: What is the difference between DMTH4002SCTB-13 and DMTH4002SCTBQ-13?

A: The DMTH4002SCTBQ-13 includes automotive-grade qualification (AEC-Q101) certification, while the DMTH4002SCTB-13 is a standard industrial-grade part. All electrical and mechanical specifications are identical.

Q: Is the DMTH4002SCTBQ-13 suitable for automotive applications?

A: Yes. The DMTH4002SCTBQ-13 carries AEC-Q101 qualification, certifying it for automotive-grade reliability and quality requirements. The DMTH4002SCTB-13 is not automotive-qualified.

Q: Are both parts available in the same packaging format?

A: Yes. Both DMTH4002SCTB-13 and DMTH4002SCTBQ-13 are supplied in Tape & Reel (TR) format with TO-263AB (D2PAK) surface mount packaging.

Q: Do both parts meet RoHS and REACH compliance?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is the continuous drain current rating for these parts?

A: Both parts are rated for 192A continuous drain current at Tc (case temperature).

Q: What is the on-resistance specification?

A: Both parts have a maximum on-resistance (Rds On) of 3mOhm measured at 90A drain current with 10V gate-source voltage.

Q: Can these parts operate at high temperatures?

A: Yes. Both parts are rated for operating junction temperatures from -55°C to 175°C, supporting high-temperature applications.

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