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FMMT618Q

NPN, 20V, 2.5A, SOT23

Datasheet

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Feature(s)

BV_CEO > 20V
I_C = 2.5A Continuous Collector Current
R_CE(sat)= 50mΩ for a low equivalent On-Resistance
625mW Power dissipation
h_FEcharacterized up to 6A for high current gain hold up
Complementary NPN type: FMMT718Q
Totally Lead-Free & Fully RoHS compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Qualified to AEC-Q101 Standards for High Reliability
The FMMT618Q is suitable for automotive applications requiring specific change control; this part is AEC-Q101 qualified, PPAP capable, and manufactured in IATF16949 certified facilities. https://www.diodes.com/quality/product-definitions/

Application(s)

DC-DC Modules
Gate Driver
LED Driver

Specifications & Technical Documents

Product Parameters

Compliance (Only Automotive Supports PPAP)	Automotive
Category	Low Saturation Transistor
Polarity	NPN
VCEO, VCES (V)	20
IC (A)	2.5
ICM (A)	6
PD (W)	0.625
hFE (Min)	300
hFE (@ IC) (A)	0.2
h_FE(Min 2)	200
hFE (@ IC2) (A)	2
VCE(sat) Max (mV)	15
V_CE(SAT) (@ IC/IB) (A/mA)	0.1/10
VCE(sat) (Max.2) (mV)	200
VCE(sat) (@ IC/IB2) (A/mA)	2.5/50
fT (MHz)	140

Technical Documents

SPICE Model

FMMT618Q.spice.txt

Recommended Soldering Techniques

TN1.pdf

RoHS CofC

RoHSFile

Purchase & Availability

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2770	2025-10-30	2025-10-30	Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products