FMMT634QTA NPN Darlington transistor, 100V VCEO, 900mA continuous collector current, minimum DC current gain of 20000, in SOT-23-3 surface mount package. RoHS compliant and AEC-Q101 qualified for automotive applications.
Mfr Part #:

FMMT634QTA

Available from 1 distributors
Mfr Name: Diodes Incorporated
Diodes Incorporated
NPN Darlington transistor, 100V VCEO, 900mA continuous collector current, minimum DC current gain of 20000, in SOT-23-3 surface mount package. RoHS compliant and AEC-Q101 qualified for automotive applications.
✓ Total Stock: 60 pcs
$ Price Range: $0.34 - $1.09

FMMT634QTA Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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60 pcs
60 pcs On Request 1 On Request On Request On Request On Request On Request

FMMT634QTA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Frequency
Halogen Free
Mounting Type
Operating Temperature
Power
Supplier Device Package
Tape & Reel
Tape Width
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage
Weight

FMMT634QTA Description

Short technical summary and product information.

The FMMT634QTA is a 100V NPN Darlington transistor from Diodes Incorporated, designed for automotive and general-purpose high-gain switching applications. It features a maximum collector-emitter voltage of 100V, a continuous collector current rating of 900mA, and a peak pulse current capability of 5A. The transistor offers a minimum DC current gain of 20000 at 100mA collector current and 5V collector-emitter voltage, ensuring excellent current gain hold-up.

 

Power dissipation is 625mW on a standard PCB and 806mW on a 25mm x 25mm FR4 PCB. The device is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities, making it suitable for stringent automotive environments. It is fully RoHS3 compliant, halogen and antimony free, and meets MSL Level 1 per J-STD-020.

 

The transistor is housed in a surface-mount SOT-23-3 package with matte tin plated leads, weighing approximately 0.008 grams. It is supplied in tape and reel packaging with 3000 units per reel. Complementary PNP type is the FMMT734Q.

FMMT634QTA Quick Information

Product Type: NPN Darlington Transistor
Series: FMMT634Q
Canonical Name: FMMT634QTA - NPN Darlington Transistor, 100V, 0.9A, SOT-23-3
Subcategory: NPN Darlington

FMMT634QTA Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): Level 1 (Unlimited)
REACH Status: REACH Unaffected
Lead Free: Lead-Free

FMMT634QTA Estimated Pricing

Qty Low High
1+ $1.09 $1.09
10+ $0.67 $0.67
100+ $0.44 $0.44
500+ $0.34 $0.34
3,000+ $0.34 $0.34

Estimated market price range - modelled values for guidance only, not live distributor offers.

FMMT634QTA Features

  • 100V collector-emitter breakdown voltage.
  • 900mA continuous collector current rating.
  • Minimum DC current gain of 20,000 at 100mA.
  • 5A peak pulse current capability.
  • AEC-Q101 qualified for automotive applications.

FMMT634QTA Applications

  • Ideal for automotive lamp and relay driving.
  • Suitable for solenoid driver circuits.
  • Used in high-gain amplification stages.
  • Designed for switching applications requiring high current gain.

FMMT634QTA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the FMMT634QTA?

The maximum collector-emitter voltage (VCEO) is 100V.

What is the package type of the FMMT634QTA?

SOT-23-3 surface mount package.

What is the operating temperature range of the FMMT634QTA?

Junction temperature range from -55°C to 150°C.

Is the FMMT634QTA RoHS compliant?

Yes, it is RoHS3 compliant (fully RoHS compliant).

What is the DC current gain of the FMMT634QTA?

Minimum DC current gain (hFE) is 20000 at Ic=100mA, Vce=5V.

What is the continuous collector current rating?

Maximum continuous collector current is 900 mA.

Does the FMMT634QTA have automotive qualification?

Yes, it is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities.

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