Product Summary

The BD681 is a plastic, medium-power silicon NPN Darlington transistor. The device can be used as output devices in complementary general-purpose amplifier applications.

Parametrics

BD681 absolute maximum ratings: (1)collector-emitter voltage, VCEO: 45Vdc; (2)collector-base voltage, VCBO: 100Vdc; (3)emitter-base voltage, VEBO: 5.0Vdc; (4)collector current, IC: 4.0Adc; (5)base current, IB: 1.0Adc; (6)total device dissipation @Tc=25℃, PD: 40W; 0.32W/℃ when derate above 25℃; (7)operating and storage junction temperature range, Tj, Tstg: -55 to 150℃.

Features

BD681 features: (1)High DC Current Gain: hFE = 750 (Min) @ IC= 1.5 and 2.0 Adc; (2)Monolithic Construction; (3)681 is complementary with 682; (4)Pb-Free Packages are Available.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
BD681G
BD681G
ON Semiconductor
Transistors Darlington 4A 100V Bipolar Power NPN
Data Sheet
0-1: $0.33
1-25: $0.25
25-100: $0.22
100-500: $0.19
BD681S
BD681S
Fairchild Semiconductor
Transistors Darlington NPN Epitaxial Sil
Data Sheet
0-1: $0.35
1-25: $0.26
25-100: $0.22
100-250: $0.19
BD681
BD681
STMicroelectronics
Transistors Darlington NPN Power Darlington
Data Sheet
0-1: $0.90
1-10: $0.76
10-100: $0.66
100-250: $0.58
BD681STU
BD681STU
Fairchild Semiconductor
Transistors Darlington NPN Epitaxial Sil
Data Sheet
0-1: $0.30
1-25: $0.25
25-100: $0.22
100-250: $0.19