LS3550C – Dual PNP Bipolar Transistor (Matched Pair)

This datasheet describes a dual PNP bipolar transistor, designed as a matched pair for applications requiring excellent thermal tracking and tight VBE matching. It is hermetically sealed in a TO-71 package and also available as a bare die.

Key Features:

️· Excellent Thermal Tracking: ≤ 15µV/°C
️· Tight VBE Matching: VBE1 - VBE2 ≤ 10mV
️· Matched Pair: Designed for consistent performance between the two transistors within the dual package.
️· Hermetically Sealed: Suitable for harsh environment applications.

Absolute Maximum Ratings (at 25°C unless otherwise noted):

️· Storage Temperature: -65°C to +150°C
️· Operating Junction Temperature: -55°C to +150°C
️· Continuous Power Dissipation: TBD (To Be Determined)
️· Collector Current (Ic): 10mA
️· Collector-to-Collector Voltage (Vcc): 80V

Electrical Characteristics:

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
VBE1 - VBE2	VBE1 – VBE2			10	mV	IC = -10mA, VCE = -5V
Δ(VBE1–VBE2)/ΔT				15	µV/°C	IC = -10mA, VCE = -5V, TA = -40°C to +85°C
IB1-IB2				10	nA	IC = -10µA, VCE = -5V
Δ(IB1–IB2)/ΔT				1.0	nA/°C	IC = -10µA, VCE = -5V, TA = -40°C to +85°C
hFE1/hFE2				15	%	IC = 10µA, VCE = 5V
BVCBO		-20			V	IC = 10µA, IE = 0
BVCEO		-20			V	IC = 10µA, IB = 0
BVEBO		-6.2			V	IE = 10µA, IC = 0
BVCCO		-80			V	IC = 10µA, IE = 0
hFE		50				IC = -1mA, VCE = -5V
hFE		40				IC = -10mA, VCE = -5V
hFE		40				IC = -100mA, VCE = -5V
VCE(sat)				-1.2	V	IC = -100mA, IB = -10mA
IEBO				-0.2	nA	IE = 0, VCB = -3V
ICBO				-0.2	nA	IE = 0, VCB = -20V
COBO				2	pF	IE = 0, VCB = -10V
CC1C2				2	pF	VCC = 0V
IC1C2				-1	nA	VCC = ±80V
fT				600	MHz	IC = -1mA, VCE = -5V
NF				3	dB	IC = -100µA, VCE = -5V, BW = 200Hz, RG = 10Ω, f = 1kHz

Important Notes:

️· The reverse base-emitter voltage must not exceed 6.2V.
️· The reverse base-emitter current must not exceed 10µA.
️· Continuous power dissipation is to be determined.



This summary captures the core information from the provided datasheet. Let me know if you have any more questions or want any specific aspects elaborated further!