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Information furnished by Linear Integrated Systems and Micross Components is believed to be accurate and reliable. However, no responsibility is assumed for its use; nor for any infringement of patents or

other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Linear Integrated Systems.

FEATURES 

Direct Replacement for INTERSIL IT122 

OUTPUT CAPACITANCE ≤ 2.0pF 

≤ 20µV°C 

ABSOLUTE MAXIMUM RATINGS 

@ 25°C (unless otherwise noted) 

Maximum Temperatures 

Storage Temperature ‐65°C to +200°C 

Operating Junction Temperature ‐55°C to +150°C 

Maximum Power Dissipation 

Continuous Power Dissipation (One side) 

250mW 

Continuous Power Dissipation (Both sides) 

500mW 

Linear Derating factor (One side) 

2.3mW/°C 

Linear Derating factor (Both sides) 

4.3mW/°C 

Maximum Currents 

Collector Current 

10mA 

  

MATCHING CHARACTERISTICS @ 25°C (unless otherwise stated) 

SYMBOL 

CHARACTERISTIC 

MIN 

TYP 

MAX 

UNITS 

CONDITIONS 

Base Emitter Voltage Differential 

‐‐ 

‐‐ 

5 

mV 

 

Base Emitter Voltage Differential 

Change with Temperature 

‐‐ 

‐‐ 

20 

µV/°C 

TA = ‐55°C to +125°C 

Base Current Differential 

‐‐ 

‐‐ 

25 

nA 

 

ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted)

SYMBOL 

CHARACTERISTICS 

MIN. 

TYP. 

MAX. 

UNITS 

CONDITIONS 

Collector to Base Voltage 

45 

‐‐ 

‐‐ 

V 

IC = 10µA, IE = 0 

Collector to Emitter Voltage 

45 

‐‐ 

‐‐ 

V 

Emitter‐Base Breakdown Voltage 

6.2 

‐‐ 

‐‐ 

V 

Collector to Collector Voltage 

60 

‐‐ 

‐‐ 

V 

DC Current Gain 

80 

‐‐ 

‐‐ 

 

100 

‐‐ 

‐‐ 

 

Collector Saturation Voltage 

‐‐ 

‐‐ 

0.5 

V 

Emitter Cutoff Current 

‐‐ 

‐‐ 

1 

nA 

Collector Cutoff Current 

‐‐ 

‐‐ 

1 

nA 

Output Capacitance 

‐‐ 

‐‐ 

2 

pF 

Collector to Collector Capacitance 

‐‐ 

‐‐ 

2 

pF 

Collector to Collector Leakage Current 

‐‐ 

‐‐ 

10 

nA 

Current Gain Bandwidth Product 

180 

‐‐ 

‐‐ 

MHz 

NF 

Narrow Band Noise Figure 

‐‐ 

‐‐ 

3 

dB 

f = 1KHz 

Notes: 

1. Absolute Maximum ratings are limiting values above which serviceability may be impaired

2. The reverse base‐to‐emitter voltage must never exceed 6.2 volts; the reverse base‐to‐emitter current must never exceed 10µA. 

 

IT122

MONOLITHIC DUAL

NPN TRANSISTOR

IT122 Features:

Tight matching

Low Output Capacitance

The IT122 is a monolithic pair of NPN transistors

mounted in a single TO-78 package. The monolithic

dual chip design reduces parasitics and gives better

performance while ensuring extremely tight matching.

The IT122 is a direct replacement for discontinued

Intersil IT122.

The hermetically sealed TO-78 is well suited for hi-rel

and harsh environment applications.

(See Packaging Information).

Linear Systems replaces discontinued Intersil IT122

Available Packages:

IT122 in TO-78

IT122 available as bare die

Please contact Micross for full package and die dimensions:

TO-78 (Bottom View)