Photodetector / Photodiode

Keywords: Photodiode, photodetector, powermeter

Jun 05, 2021 View: 3513 Data Sheet

STX series photodetectors are high quality InGaAs/InP PIN photodiodes designed for optical power monitoring and measurement applications. They are assembled into a hermetically-sealed TO package with flat window. Active areas are 300m, 1000m, 3000m an

Online submission +65 63167112 sales@sintec.sg

STX Series Photodetectors

FEATURES

Long Wavelength Operation.
Low Dark Current.
High Responsivity.
TO46, TO5, TO8 packages available.
Excellent Reliability, qualified based on MIL-STD-883 and GR-468-CORE.

APPLICATIONS

Optical power monitoring.
Industrial watching and controlling.
Measuring instrument.

SPECIFICATIONS

Absolute Maximum Rating

	Unit	STX-20T-143H-3HG	STX-20T-121K-3HF	STX-20T-123K-3QH	STX-20T-125K-6MK
Active detection diameter	μm	300	201000	3000	5000
Reverse voltage	V	20	20	20	20
Maximum input optical power	mW	10	10	10	10
Forward current	mA	10	10	10	10
Reverse current	mA	2	2	2	2
Storage temp.	oC	-40-100	-40-100	-40-100	-40-100
Operating tem.	oC	-40-85	-40-85	-40-85	-40-85
Relative humidity	%	5-95	5-95	5-95	5-95
Lead soldering	oC/s	260/10	260/10	260/10	260/10
Power supply voltage	V	5	5	5	5
Package & drawing		TO46	TO46	TO5	TO8

E-O and O-E Characteristics (Tc=25 oC unless specified)

	Unit	STX-20T-143H-3HG	STX-20T-121K-3HF	STX-20T-123K-3QH	STX-20T-125K-6MK
Wavelength range	nm	700-1700	700-1700	700-1700	700-1700
Responsivity@850nm	A/W	0.23	0.23
Responsivity@1310nm	A/W	0.95	0.95	0.95	0.85
Responsivity@1550nm	A/W	1.05	1.05	1.0	0.9
Responsivity / temperature@1550nm	%/ oC	0.03	0.03
Responsivity / input power	%	-5-5	-5 - 5
Responsivity / wavelength	%	-5-5	-5 - 5
Dark current@25 oC	nA	0.3-1.5	1.5-5
Dark current@85 oC	nA	17-30	17-100	7-50	10-50
Bandwidth	MHz	300-600	35-50
Reverse breakdown voltage@10uA	V	30	20
Forward voltage@1mA	V		1.2	0.6	0.6
Saturated optical power	dBm			10	10
Capacitance@1MHz	pF	3-5	35-50	35-50	1.2-1.5

Laser Pulse Parameter Measurement (High-speed Photodetector)

Laser pulse duration, usually refers to the interval between the time when the laser power maintains at a certain value. The pulse duration of different lasers can vary greatly.

High-speed photodetector combined with oscilloscope can monitor ultra-fast pulsed laser and measure pulse duration, frequency, period and other parameters of lasers.

Product name	High-speed photodetector
Part number	STC-PD
Wavelength	200-1100nm
Rise time	1ns, 5ns（optional）
Dimensions	Ultra-thin body [3/4 inch (19.1 mm)] can measure in narrow space
Battery	Internal A23 bias battery (accessory)

Data Sheet

Online submission

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