What is FMMT491TA?
FMMT491TA is a Transistors - Bipolar (BJT) - Single component from Diodes Incorporated. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.
Supply original FMMT491TA, Transistors - Bipolar (BJT) - Single, by Diodes Incorporated
TRANS NPN 60V 1A SOT23-3
RoHS
Datasheet
Pictures are for reference only. Please contact us for the latest pictures.
Key specifications
Serise
-
Min Quantity
1
Category
Discrete Semiconductor ProductsSub Categroy
Transistors - Bipolar (BJT) - SingleDescription
TRANS NPN 60V 1A SOT23-3
key Attributes
-
Technical document
Open The Official Datasheet
Review the latest datasheet for FMMT491TA from Diodes Incorporated in a separate tab so engineers and buyers can check package, electrical characteristics, and application details without leaving this product page.
Why request a quote
Use the RFQ step to confirm the commercial and documentation details buyers usually need before placing an order.
Confirm stock and lead-time expectations
Check CoC or traceability support
Align inspection and fulfillment details
Trust signals
Globally recognized certifications
Visible certifications work best when they are paired with clear operational promises around traceability, handling, and inspection.
ISO 9001
Quality management processes for more consistent sourcing and handling.
AS9120B
Aerospace-focused distribution controls for traceability and reliability.
ISO 14001
Environmental management discipline across warehouse and operating workflows.
ESD Control
Electrostatic handling standards to help protect sensitive components.
Authenticity Verification
CoC Available on Request
Pre-Shipment Inspection
Responsive RFQ Support
Why buyers trust this sourcing flow
Our quality workflow is designed to reduce counterfeit risk and support confident procurement. Components are reviewed through documented handling and inspection steps so buyers can evaluate sourcing with stronger authenticity controls.
Structured product content
Review The Product The Way Buyers Actually Evaluate It
Jump between overview, specs, and related sourcing content without scanning one long uninterrupted page.
Product overview
Overview
TRANS NPN 60V 1A SOT23-3
Full technical breakdown
Detailed Specifications
Review grouped attributes and parameters without scanning one oversized table.
Fast scan
Popular Specs Surfaced First
Product Parameter
Terminal Finish
Matte Tin (Sn) - annealed
Product Parameter
Number Of Elements
1
Product Parameter
Transistor Type
NPN
Product Parameter
Max Breakdown Voltage
60V
Export Classifications & Environmental
JESD-609 Code
e3
Export Classifications & Environmental
Moisture Sensitivity Level (MSL)
1 (Unlimited)
Terminal Finish
Matte Tin (Sn) - annealed
Number Of Elements
1
Transistor Type
NPN
Max Breakdown Voltage
60V
JESD-609 Code
e3
Moisture Sensitivity Level (MSL)
1 (Unlimited)
RoHS Status
ROHS3 Compliant
REACH SVHC
No SVHC
ECCN Code
EAR99
HTSUS
8541.21.0075
Part Status
Active
REACH Status
REACH Unaffected
ECCN
EAR99
Lead Free
Lead Free
Mounting Type
Surface Mount
Factory Lead Time
15 Weeks
Termination
SMD/SMT
Published
2012
Packaging
Cut Tape (CT)
Terminal Position
DUAL
Peak Reflow Temperature (Cel)
260
Terminal Form
GULL WING
Max Junction Temperature (Tj)
150°C
Element Configuration
Single
Frequency
150MHz
Max Power Dissipation
500mW
Height
1.1mm
Categories
Discrete Semiconductor Products
Transistor Application
SWITCHING
Transistor Element Material
SILICON
Operating Temperature
-55°C~150°C TJ
Subcategory
Other Transistors
Manufacturer
Diodes Incorporated
Package / Case
TO-236-3, SC-59, SOT-23-3
Weight
7.994566mg
Radiation Hardening
No
Reflow Temperature-Max (S)
40
Mount
Surface Mount
Pbfree Code
yes
Number Of Pins
3
Pin Count
3
Number Of Terminations
3
Power Dissipation
500mW
Current Rating
1A
Width
1.4mm
Voltage - Rated DC
60V
Length
3.04mm
Max Collector Current
1A
Sub-Categories
Transistors - Bipolar (BJT) - Single
Current - Collector Cutoff (Max)
100nA
Polarity/Channel Type
NPN
Collector Base Voltage (VCBO)
80V
Collector Emitter Breakdown Voltage
60V
Collector Emitter Voltage (VCEO)
60V
Gain Bandwidth Product
150MHz
Emitter Base Voltage (VEBO)
7V
Transition Frequency
150MHz
HFE Min
80
Manufacturer'S Part No.
FMMT491TA
Base Part Number
FMMT491
Vce Saturation (Max) @ Ib, Ic
250mV @ 100mA, 1A
Continuous Collector Current
1A
DC Current Gain (HFE) (Min) @ Ic, Vce
100 @ 500mA 5V
Collector Emitter Saturation Voltage
160mV
Common questions
Product FAQ
Quick answers for buyers reviewing FMMT491TA, stock, documentation, and sourcing steps.
What package and description are listed for FMMT491TA?
FMMT491TA is listed with package reference SOT23. The current product description is TRANS NPN 60V 1A SOT23-3, and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.
Is FMMT491TA available in stock?
This page currently shows 60746 units in stock and 36034 units available for FMMT491TA. Because electronic component availability can change quickly, submit an RFQ to confirm live stock, lead time, and final pricing.
Can I request a quote or sample for FMMT491TA?
Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for FMMT491TA by Diodes Incorporated. The TrustCompo team can review price, availability, and documentation support.
Is a datasheet available for FMMT491TA?
Yes. This page links to the datasheet for FMMT491TA by Diodes Incorporated, so engineers and buyers can review package, ratings, and application details before purchase.
How should buyers verify FMMT491TA before ordering?
Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for FMMT491TA before approving the order.
Transistors - Bipolar (BJT) - Single
Recommended Products
Explore more parts from the same subcategory to compare fit, stock, and sourcing options.
2SD1980TL
192 purchased
SOT-428
RoHS
Datasheet
TRANS NPN DARL 100V 2A SOT-428
Reference price
$0.33Add to RFQ list
FZT953TA
216 purchased
SOT-223
RoHS
Datasheet
TRANS PNP 100V 5A SOT-223
Reference price
$1.12Add to RFQ list
FMMT493TA
154 purchased
SOT23
RoHS
Datasheet
TRANS NPN 100V 1A SOT23-3
Reference price
$0.03Add to RFQ list
2SD1782KT146R
167 purchased
SOT-346
RoHS
Datasheet
TRANS NPN 80V 0.5A SOT-346
Reference price
$0.04Add to RFQ list
FZT651TA
166 purchased
SOT-223
RoHS
Datasheet
TRANS NPN 60V 3A SOT-223
Reference price
$0.08Add to RFQ list
More sourcing insights
Articles
Jun 29, 2026
Wolfspeed SiC supply continuity 2026: a buyer's framework for second-source qualification
wolfspeedsicsupply-continuitysecond-source
How Wolfspeed's 2026 SiC supply story changes procurement decisions — what to lock-buy, where to qualify a second source, and the MPN-level continuity boundaries that actually matter.
Jun 25, 2026
MOSFET Selection Guide for Power Design: A Buyer's Framework for Voltage Class, Losses, Package, and Sourcing Risk
MOSFETpower designselection guideTO-220
A practical MOSFET selection guide for power design teams covering voltage class, Rds(on), gate charge, package thermal limits, and sourcing-safe alternative logic.
Jun 19, 2026
Vishay, Onsemi & Infineon 2026 MOSFET Shortage — A Buyer's Framework
mosfetshortageallocationpower-semiconductor
2026 Vishay, Onsemi and Infineon power MOSFET shortage buyer framework: part-family risk matrix, datasheet-verified alternatives, and three procurement actions to act on before Infineon's July price increase.