SQ4957 데이터 시트보기 (PDF) - Semicoa Semiconductor
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SQ4957 Datasheet PDF : 1 Pages
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Chip Type 2C4957
Geometry 0006
Polarity PNP
Data Sheet No. 2C4957
Generic Packaged Parts:
2N4957, 2N4958, 2N4959
Chip type 2C4957 by Semicoa Semi-
conductors provides performance
similar to these devices.
Part Numbers:
2N4957, 2N4957UB, 2N4958, 2N4958UB,
2N4959, 2N4959UB, SD4957, SD4957F,
SQ4957, SQ4957F
Product Summary:
APPLICATIONS:
Designed for high-gain, low-noise class A
amplifiers, oscillators and mixers.
Features: Special Characteristics
ft = 1.6 GHz (typ) at 2.0 mA/10V
Radiation graphs available
Metallization
Bonding Pad Size
Die Thickness
Chip Area
Top Surface
Mechanical Specifications
Top
Al - 12 kÅ min.
Backside
Au - 6.5 kÅ nom.
Emitter
2.3 mils x 2.3 mils
Base
2.3 mils x 2.3 mils
8 mils nominal
16 mils x 16 mils
Silox Passivated
Electrical Characteristics
TA = 25oC
Parameter
Test conditions
Min
Max
Unit
BVCEO
IC = 1.0 mA
30
---
V dc
BVCBO
IC = 100 µA
30
---
V dc
BVEBO
IE = 100 µA
3.0
---
V dc
ICBO
VCB = 10 V dc
---
0.1
µA
hFE
VCE = 10 V, IC = 2.0 mA
20
150
---
Due to limitations of probe testing, only dc parameters are tested. This must be done with pulse width less
than 300 µs, duty cycle less than 2%.
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