SD4957F SEMICOA [Semicoa Semiconductor], SD4957F Datasheet

SD4957F

Manufacturer Part Number

SD4957F

Description

Chip Type 2C4957 Geometry 0006 Polarity PNP

Manufacturer

SEMICOA [Semicoa Semiconductor]

Datasheet

1.SD4957F.pdf (1 pages)

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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%.

Chip Type 2C4957

Geometry 0006

Polarity PNP

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

CBO

Parameter

CEO

CBO

EBO

Bonding Pad Size

Die Thickness

Metallization

Top Surface

Chip Area

Test conditions

Mechanical Specifications

= 10 V, I

Electrical Characteristics

= 1.0 mA

= 100 µA

= 10 V dc

= 2.0 mA

Backside

Emitter

Base

Top

= 25

Product Summary:

APPLICATIONS:

Designed for high-gain, low-noise class A

amplifiers, oscillators and mixers.

Features:

ft = 1.6 GHz (typ) at 2.0 mA/10V

Radiation graphs available

Generic Packaged Parts:

2N4957, 2N4958, 2N4959

Min

3.0

---

Data Sheet No. 2C4957

16 mils x 16 mils

Silox Passivated

8 mils nominal

Special Characteristics

2.3 mils x 2.3 mils

Au - 6.5 kÅ nom.

Al - 12 kÅ min.

Max

150

0.1

---

Unit

V dc

µA

---

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