2C4957
| Model | 2C4957 |
| Description | Chip Type 2C4957 Geometry 0006 Polarity PNP |
| PDF file | Total 1 pages (File size: 33K) |
| Chip Manufacturer | SEMICOA |
Data Sheet No. 2C4957
Chip Type 2C4957
Geometry 0006
Polarity PNP
Generic Packaged Parts:
2N4957, 2N4958, 2N4959
Chip type
2C4957
by Semicoa Semi-
conductors provides performance
similar to these devices.
Part Numbers:
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
2N4958, 2N4958UB,
2N4959, 2N4959UB, SD4957, SD4957F,
SQ4957, SQ4957F
Mechanical Specifications
Metallization
Bonding Pad Size
Die Thickness
Chip Area
Top Surface
Top
Backside
Emitter
Base
Al - 12 kÅ min.
Au - 6.5 kÅ nom.
2.3 mils x 2.3 mils
2.3 mils x 2.3 mils
8 mils nominal
16 mils x 16 mils
Silox Passivated
Electrical Characteristics
T
A
= 25 C
Parameter
BV
CEO
BV
CBO
BV
EBO
I
CBO
o
Test conditions
I
C
= 1.0 mA
I
C
= 100 µA
I
E
= 100 µA
V
CB
= 10 V dc
Min
30
30
3.0
---
Max
---
---
---
0.1
Unit
V dc
V dc
V dc
µA
h
FE
V
CE
= 10 V, I
C
= 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%.
