Datasheet 2SC4959-T2, 2SC4959 Datasheet (NEC)

DATA SHEET

SILICON TRANSISTOR

2SC4959

HIGH FREQUENCY LOW NOISE AMPLIFIER

NPN SILICON EPITAXIAL TRANSISTOR

SUPER MINI MOLD

FEATURES

• Low Noise, High Gain

• Low Voltage Operation

• Low Feedback Capacitance

Cre = 0.4 pF TYP.

ORDERING INFORMATION

PART

NUMBER

2SC4959–T1 3 Kpcs/Reel. Pin3 (Collector) face to perfora-

2SC4959–T2 3 Kpcs/Reel. Pin1 (Emitter), Pin2 (Base) face

* Please contact with responsible NEC person, if you require evaluation

sample.
Unit sample quantity shall be 50 pcs. (Part No.: 2SC4959)

ABSOLUTE MAXIMUM RATINGS (TA = 25 °C)

Collector to Base Voltage VCBO 9V

QUANTITY PACKING STYLE

Embossed tape 8 mm wide.

tion side of the tape.

Embossed tape 8 mm wide.

to perforation side of the tape.

PACKAGE DIMENSIONS

in millimeters

2.1 ± 0.1

1.25 ± 0.1

2

–0

+0.1

0.3

2.0 ± 0.2

0.9 ± 0.1

1

0.65 0.65

0.3

PIN CONNECTIONS

Emitter

1.
Base

2.
Collector

3.

Marking

0 to 0.1

3

–0

+0.1

0.3

–0.05

+0.1

0.15

Collector to Emitter Voltage V
Emitter to Base Voltage VEBO 2V
Collector Current I
Total Power Dissipation P
Junction Temperature Tj 150 °C
Storage Temperature T

Document No. P10382EJ2V0DS00 (2nd edition)
(Previous No. TD-2410)
Date Published July 1995 P
Printed in Japan

CEO 6V

C 30 mA

T 150 mW

stg –65 to +150 °C

Caution; Electrostatic sensitive Device.

The mark ★ shows revised points.

1995

©

1992

ELECTRICAL CHARACTERISTICS (TA = 25 °C)

CHARACTERISTIC SYMBOL MIN. TYP. MAX. UNIT TEST CONDITION

2SC4959

Collector Cutoff Current I
Emitter Cutoff Current I
DC Current Gain h
Gain Bandwidth Product f
Feed back Capacitance C
Insertion Power Gain |S

CBO

EBO

21e

FE

T

re

2

|

75 150 VCE = 3 V, IC = 10 mA

12 GHz VCE = 3 V, IC = 10 mA, f = 2.0 GHz

0.4 0.7 pF VCB = 3 V, IE = 0, f = 1 MHz

7 8.5 dB VCE = 3 V, IC = 10 mA, f = 2.0 GHz

0.1

0.1

µ

AVCB = 5 V, IE = 0

µ

AVEB = 1 V, IC = 0

*1

Noise Figure NF 1.5 2.5 dB VCE = 3 V, IC = 3 mA, f = 2.0 GHz

*1 Pulse Measurement ; PW ≤ 350 µs, Duty Cycle ≤ 2 % Pulsed.
*2 Measured with 3 terminals bridge, Emitter and Case should be grounded.

hFE Classification

Rank T83

Marking T83

h

FE

75 to 150

TYPICAL CHARACTERISTICS (TA = 25 °C)

*2

TOTAL POWER DISSIPATION
vs.AMBIENT TEMPERATURE

Free Air

200

100

– Total Power Dissipation – mW

T

P

0 50 100 150

TA – Ambient Temperature – °C VBE – Base to Emitter Voltage – V

COLLECTOR CURRENT vs. 
BASE TO EMITTER VOLTAGE

50

V

CE

= 3 V

40

30

20

– Collector Current – mA

10

C

I

0

0.5 1.0

2

2SC4959

60

01

500 A

400 A

300 A

200 A

I

B

= 100 A

50

40

30

20

10

23456

0.1

200

100

0

0.2 0.5 1 2 5 10 20 50 100

5 V

V

CE

= 3 V

14

0.5

12

10

8

6

4

2

12 51020 50

5 V
3 V

V

CE

= 1 V

10

1

8

6

4

2

2 5 10 50

20

5 V
3 V

VCE = 1 V

COLLECTOR CURRENT vs. 
COLLECTOR TO EMITTER VOLTAGE

DC CURRENT GAIN vs.
COLLECTOR CURRENT

GAIN BANDWIDTH PRODUCT
vs. COLLECTOR CURRENT

INSERTION POWER GAIN vs.
COLLECTOR CURRENT

f = 2 GHz

f = 2 GHz



V

CE

– Collector to Emitter Voltage – V IC – Collector Current – mA

I

C

– Collector Current – mA

I

C

– Collector Current – mA

I

C

– Collector Current – mA

h

FE

– DC Current Gain

f

T

– Gain Bandwidth Product – GHz

 S

21e



2

– Insertion Power Gain – dB

m

m

m

m

m

4

0.5

3

2

1

0

12 51020

50

0.2

0.5 1 2 5 10 20

0.3

0.4

0.5

0.6

f = 2 GHz
V

CE

= 3 V

NOISE FIGURE vs.
COLLECTOR CURRENT

FEED-BACK CAPACITANCE vs. 
COLLECTOR TO BASE VOLTAGE

f = 1 MHz

NF – Noise Figure – dB

IC – Collector Current – mA

V

CB

– Collector to Base Voltage – V

C

re

– Feed-back Capacitance – pF

3

S–PARAMETER

(VCE = 3 V, IC = 1 mA, ZO = 50 Ω)

2SC4959

fS

(GHz) MAG ANG MAG ANG MAG ANG MAG ANG

0.200 0.9340 –15.7 3.5100 164.8 0.0450 82.6 0.9850 –8.7

0.400 0.9040 –29.4 3.3520 150.7 0.0780 68.0 0.9410 –17.1

0.600 0.8150 –43.4 3.1060 138.0 0.1140 62.8 0.8960 –23.6

0.800 0.7530 –56.6 2.8840 126.3 0.1370 58.0 0.8260 –29.9

1.000 0.6540 –68.9 2.6050 115.1 0.1490 55.2 0.7830 –34.7

1.200 0.5900 –79.8 2.4490 105.4 0.1660 45.4 0.7220 –38.0

1.400 0.5160 –90.1 2.2610 96.8 0.1770 44.8 0.6790 –42.0

1.600 0.4590 –101.5 2.0780 89.4 0.1780 45.1 0.6430 –45.2

1.800 0.4230 –110.8 1.9250 83.7 0.1880 42.5 0.6290 –46.8

2.000 0.3670 –123.9 1.8700 76.3 0.1900 41.9 0.5880 –51.4

2.200 0.3370 –136.7 1.7790 69.9 0.2110 43.9 0.5630 –54.3

2.400 0.3150 –145.5 1.6600 64.1 0.2140 41.9 0.5520 –57.0

2.600 0.3080 –159.1 1.5690 59.4 0.2070 42.8 0.5450 –59.2

2.800 0.2930 –164.8 1.5190 55.3 0.2140 45.8 0.5220 –64.5

3.000 0.2950 –179.6 1.4610 50.7 0.2260 45.4 0.4960 –61.3

(V

CE = 3 V, IC = 3 mA, ZO = 50 Ω)

fS

(GHz) MAG ANG MAG ANG MAG ANG MAG ANG

11 S21 S12 S22

11 S21 S12 S22

0.200 0.8020 –25.9 8.8990 154.2 0.0370 67.2 0.9420 –15.7

0.400 0.6780 –45.8 7.4880 134.4 0.0760 65.6 0.8040 –26.6

0.600 0.5440 –62.8 6.1260 119.6 0.0860 60.9 0.7060 –33.2

0.800 0.4430 –75.7 5.1230 108.1 0.1050 58.4 0.6250 –36.6

1.000 0.3540 –87.3 4.3050 99.1 0.1210 55.9 0.5660 –38.3

1.200 0.2930 –99.7 3.7880 91.3 0.1330 61.2 0.5190 –41.4

1.400 0.2360 –108.4 3.3560 84.8 0.1440 55.4 0.4950 –43.9

1.600 0.2000 –121.0 3.0100 79.1 0.1570 56.2 0.4660 –44.5

1.800 0.1820 –129.5 2.6960 74.4 0.1760 58.0 0.4560 –44.5

2.000 0.1480 –151.7 2.5340 69.4 0.1940 56.1 0.4310 –48.8

2.200 0.1370 –166.1 2.3820 64.0 0.2150 56.3 0.4050 –51.9

2.400 0.1340 175.2 2.1870 60.0 0.2130 57.8 0.3990 –52.8

2.600 0.1640 169.7 2.0530 55.8 0.2410 57.6 0.3950 –52.9

2.800 0.1500 170.9 1.9660 53.0 0.2490 55.2 0.3750 –59.2

3.000 0.1780 147.7 1.8710 49.6 0.2750 56.6 0.3740 –60.8

4

S–PARAMETER

(VCE = 3 V, IC = 5 mA, ZO = 50 Ω)

2SC4959

fS

(GHz) MAG ANG MAG ANG MAG ANG MAG ANG

0.200 0.6900 –33.3 12.2960 147.1 0.0320 74.8 0.8850 –19.7

0.400 0.5360 –54.7 9.4300 125.5 0.0610 66.3 0.7210 –30.3

0.600 0.4010 –70.0 7.2390 111.3 0.0700 59.6 0.6030 –34.5

0.800 0.3150 –82.4 5.8220 101.1 0.0950 63.8 0.5230 –36.7

1.000 0.2360 –93.8 4.7830 93.4 0.1090 62.3 0.4870 –38.0

1.200 0.1850 –105.4 4.1700 86.4 0.1260 61.9 0.4600 –38.8

1.400 0.1440 –115.8 3.6410 80.7 0.1350 65.9 0.4360 –40.4

1.600 0.1230 –134.4 3.2380 76.1 0.1560 61.2 0.4170 –42.6

1.800 0.1040 –144.6 2.8910 71.4 0.1770 62.4 0.4020 –43.9

2.000 0.1000 –170.6 2.7040 67.3 0.1930 60.7 0.3940 –45.8

2.200 0.1110 167.4 2.5330 62.6 0.2080 60.6 0.3710 –50.3

2.400 0.1040 158.2 2.3270 58.7 0.2260 61.6 0.3500 –50.2

2.600 0.1180 156.3 2.1850 54.9 0.2560 58.2 0.3560 –51.2

2.800 0.1190 150.0 2.0910 52.6 0.2560 56.8 0.3520 –58.1

3.000 0.1490 142.4 1.9760 49.0 0.2860 56.6 0.3410 –56.9

(V

CE = 3 V, IC = 10 mA, ZO = 50 Ω)

fS

(GHz) MAG ANG MAG ANG MAG ANG MAG ANG

11 S21 S12 S22

11 S21 S12 S22

0.200 0.5080 –43.6 17.0900 135.9 0.0330 63.8 0.7930 –26.2

0.400 0.3410 –65.3 11.3980 114.2 0.0520 68.5 0.5910 –32.9

0.600 0.2320 –80.7 8.2250 102.0 0.0690 69.0 0.5130 –32.9

0.800 0.1770 –90.8 6.3950 93.8 0.0880 71.6 0.4480 –32.8

1.000 0.1220 –108.2 5.1870 87.2 0.1060 69.3 0.4180 –35.9

1.200 0.1010 –121.8 4.4390 81.6 0.1260 70.1 0.4030 –33.3

1.400 0.0670 –138.2 3.8770 76.9 0.1450 70.5 0.3930 –36.5

1.600 0.0620 –167.6 3.4350 72.4 0.1590 65.5 0.3680 –36.2

1.800 0.0660 –171.3 3.0650 68.8 0.1790 65.0 0.3610 –39.5

2.000 0.0770 146.7 2.8540 65.0 0.2060 63.9 0.3480 –42.3

2.200 0.0990 146.5 2.6590 60.5 0.2220 62.8 0.3360 –46.6

2.400 0.1140 128.1 2.4400 57.0 0.2420 60.9 0.3370 –48.8

2.600 0.1260 136.8 2.2790 53.5 0.2660 59.9 0.3170 –47.2

2.800 0.1020 129.6 2.1950 50.9 0.2770 59.6 0.3280 –55.1

3.000 0.1370 123.5 2.0800 47.9 0.2860 58.3 0.3100 –51.2

5

2SC4959

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document.
NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual
property rights of third parties by or arising from use of a device described herein or any other liability arising
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copyrights or other intellectual property rights of NEC Corporation or others.
While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices,
the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or
property arising from a defect in an NEC semiconductor device, customer must incorporate sufficient safety
measures in its design, such as redundancy, fire-containment, and anti-failure features.
NEC devices are classified into the following three quality grades:
“Standard“, “Special“, and “Specific“. The Specific quality grade applies only to devices developed based on
a customer designated “quality assurance program“ for a specific application. The recommended applications
of a device depend on its quality grade, as indicated below. Customers must check the quality grade of each
device before using it in a particular application.

Standard: Computers, office equipment, communications equipment, test and measurement equipment,

audio and visual equipment, home electronic appliances, machine tools, personal electronic
equipment and industrial robots

Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster

systems, anti-crime systems, safety equipment and medical equipment (not specifically designed
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Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life

support systems or medical equipment for life support, etc.
The quality grade of NEC devices in “Standard“ unless otherwise specified in NEC's Data Sheets or Data Books.
If customers intend to use NEC devices for applications other than those specified for Standard quality grade,
they should contact NEC Sales Representative in advance.
Anti-radioactive design is not implemented in this product.

M4 94.11

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