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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 LS124 

HIGH  GAIN  

LOW OUTPUT CAPACITANCE ≤ 2.0pF 

≤ 5.0µV°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 

‐‐ 

2 

5 

mV 

 

Base Emitter Voltage Differential 

Change with Temperature 

‐‐ 

5 

15 

µV/°C 

TA = ‐55°C to +125°C 

Base Current Differential 

‐‐ 

‐‐ 

0.6 

nA 

 

ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted)

SYMBOL 

CHARACTERISTICS 

MIN. 

TYP. 

MAX. 

UNITS 

CONDITIONS 

Collector to Base Voltage 

2 

‐‐ 

‐‐ 

V 

IC = 10µA, IE = 0 

Collector to Emitter Voltage 

2 

‐‐ 

‐‐ 

V 

Emitter‐Base Breakdown Voltage 

6.2 

‐‐ 

‐‐ 

V 

Collector to Collector Voltage 

100 

‐‐ 

‐‐ 

V 

DC Current Gain 

1500 

‐‐ 

‐‐ 

 

1500 

‐‐ 

‐‐ 

 

Collector Saturation Voltage 

‐‐ 

‐‐ 

0.5 

V 

Emitter Cutoff Current 

‐‐ 

‐‐ 

100 

pA 

Collector Cutoff Current 

‐‐ 

‐‐ 

100 

pA 

Output Capacitance 

‐‐ 

‐‐ 

2 

pF 

Collector to Collector Capacitance 

‐‐ 

‐‐ 

2 

pF 

Collector to Collector Leakage Current 

‐‐ 

‐‐ 

10 

nA 

Current Gain Bandwidth Product 

100 

‐‐ 

‐‐ 

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. 

 

LS124

MONOLITHIC DUAL

NPN TRANSISTOR

LS124 Features:

Very high gain

Tight matching

Low Output Capacitance

The LS124 is a monolithic pair of Super-Beta NPN

transistors mounted in a single P-DIP package. The

monolithic dual chip design reduces parasitics and

gives better performance while ensuring extremely tight

matching. The LS124 is a direct replacement for

discontinued Intersil IT124.

The 8 Pin P-DIP provides ease of manufacturing, and

the symmetrical pinout prevents improper orientation.

(See Packaging Information).

Linear Systems replaces discontinued Intersil IT124

Available Packages:

LS124 in P-DIP

LS124 available as bare die

Please contact Micross for full package and die dimensions:

P-DIP (Top View)