Product Summary

The 1N4740 is a zener diode.

Parametrics

1N4740 absolute maximum ratings: (1)Power dissipation at tamb = 25°C Ptot: 1.0 Watts; (2)Junction temperature Tj: 175 °C; (3)Storage temperature range TS: -65 to +175 °C; (4)Thermal resistance junction to ambient air RthJA: 170 °C/W; (5)Forward voltage at IF = 200 mA VF: 1.2 Volts.

Features

1N4740 features: (1)Silicon planar power zener diodes; (2)For use in stabilizing and clipping circuits with high power rating; (3)Standard zener voltage tolerance is ±10%. Add suffix “A” for ±5% tolerance. Other zener voltages and tolerances are available upon request; (4)These diodes are also available in the MELF case with type designation ZM4728 thru ZM4764.

Diagrams

1N4740 pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
1N4740
1N4740
Other

Data Sheet
Negotiable 
1N4740A
1N4740A
Fairchild Semiconductor
Zener Diodes 10.0V 1W ZENER 5%
Data Sheet
0-1: $0.08
1-25: $0.07
25-100: $0.03
100-250: $0.02
1N4740A-B
1N4740A-B
Rectron
Zener Diodes 1.0W 10V 5%
Data Sheet
0-1000: $0.02
1N4740A-G
1N4740A-G
Other

Data Sheet
Negotiable 
1N4740AP/TR8
1N4740AP/TR8

DIODE ZENER 10V 1W DO-41
Data Sheet
0-4000: $1.30
1N4740A-T
1N4740A-T
Diodes Inc.
Zener Diodes 1W 10V
Data Sheet
0-1: $0.28
1-10: $0.20
10-100: $0.12
100-250: $0.07
1N4740A-TAP
1N4740A-TAP
Vishay Semiconductors
Zener Diodes 10 Volt 1.3 Watt
Data Sheet
0-1: $0.36
1-10: $0.24
10-100: $0.12
100-500: $0.06
1N4740A-TP
1N4740A-TP
Micro Commercial Components (MCC)
Zener Diodes 1.0W 10V
Data Sheet
0-1: $0.27
1-10: $0.18
10-100: $0.06
100-500: $0.04