Product Summary

The 2938840 is an internally matched, COMMON BASE bipolar transistor capable of providing 150 Watts of pulsed RF output power at 50μs pulse width, 4% duty factor across the 2900 to 3100 MHz band. The transistor prematch and test fixture has been optimized through the use of Pulsed Automated Load Pull. This hermetic ceramic sealed transistor is specifically designed for S-band radar applications. It utilizes gold metallization and emitter ballasting to provide high reliability and supreme ruggedness.

Parametrics

2938840 absolute maximum ratings: (1)device dissipation @ 25°c1: 500 w; (2)collector to base voltage (bvces): 65 v; (3)emitter to base voltage (bvebo): 3.0 v; (4)collector current (ic): 15.0 a; (5)storage temperature: -65 to +200°C; (6)operating junction temperature: +200°C.

Features

2938840 features: (1)pout power output: 150 w; (2)pin power input: 21.7 w; (3)Pg Power Gain: 8.3 to 8.7 dB; (4)hc Collector Efficiency: 45 to 50 %; (5)Rl Return Loss: 7 dB; (6)Pd Pulse Droop: 0.6 dB; (7)tr Rise Time: 150 nS.

Diagrams

2938840 pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
2938840
2938840

Phoenix Contact

DIN Rail Power Supplies MINI-PS 24DC 1A

Data Sheet

0-1: $56.89
1-5: $50.97
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
2938167
2938167

Phoenix Contact

DIN Rail Power Supplies 120VAC 12VDC 10A

Data Sheet

Negotiable 
2938183
2938183

Phoenix Contact

DIN Rail Power Supplies ADAPTER PLATE

Data Sheet

0-1: $19.63
1-10: $18.00
10-50: $16.61
50-100: $15.43
2938196
2938196

Phoenix Contact

DIN Rail Power Supplies ASSY ADAPTER

Data Sheet

0-1: $13.99
1-10: $13.25
10-50: $12.23
50-100: $11.36
2938206
2938206

Phoenix Contact

DIN Rail Power Supplies QUINT-PS-ADAPTER- S7/2

Data Sheet

0-1: $13.99
1-10: $13.25
10-50: $12.23
50-100: $11.36
2938219
2938219

Phoenix Contact

DIN Rail Power Supplies QUINT 3PHS 48VDC 10A

Data Sheet

0-1: $336.24
1-5: $296.69
2938222
2938222

Phoenix Contact

DIN Rail Power Supplies QUINT 48VOLT 20AMP 3 PHASE

Data Sheet

0-1: $409.90
1-5: $380.63