FORYARD FYS-23011AUHR-21 7-segment LED display, 56.8 mm, red, common cathode

FORYARD FYS-23011AUHR-21 7-segment LED display, 56.8 mm, red, common cathode

The FORYARD FYS-23011AUHR-21 is a single-digit 7-segment LED display with a 56.8 mm (2.3") digit height and decimal-point segment. The UHR (“Ultra Hi Red”) version uses red AlGaInP LED dies with a peak emission wavelength of 640 nm. The display features a common-cathode configuration and THT leads, making it suitable for numeric panels, counters, timers, measuring equipment and other electronic devices.

Key parameters: 1 digit • 7 segments + DP • 56.8 mm (2.3") digit height • red 640 nm • 30–60 mcd • common cathode • THT

Key features

• Large 56.8 mm (2.3") digit – provides good visibility at increased viewing distances and is suitable for numeric panels, instrumentation and control equipment.
• 7-segment structure with decimal point (DP) – supports numerical indication from 0 to 9 and decimal-point display.
• UHR (“Ultra Hi Red”) emission – uses AlGaInP dies with a peak emission wavelength of 640 nm.
• 30–60 mcd luminous intensity – specified by the manufacturer for the UHR variant at IF = 20 mA and Ta = 25 °C.
• Common-cathode configuration – in the FYS-23011A circuit, the segment cathodes are connected to common pins 1 and 5.
• THT mounting – 2.54 mm pitch leads allow installation on a PCB or a suitable socket.
• Wide operating temperature range – specified from –40 to +85 °C.
• RoHS compliant – stated by the manufacturer in the product specification.

Applications

The display is intended for numerical indication in electronic circuits. Typical applications include counters, timers, measuring instruments, power supplies, control panels, laboratory equipment, signalling systems and DIY electronic projects.

It is a discrete LED display rather than a complete display module, so an appropriate driver circuit and current limiting are required.

Compatibility and limitations

• The display uses a common-cathode configuration; the driving circuit must support this topology.
• It uses THT leads with a 2.54 mm pitch within each pin row.
• The internal circuit of the main segments contains multiple series-connected LED dies. Therefore, the 1.9 V typical / 2.5 V maximum forward-voltage figures for an individual UHR LED die must not be treated as a universal supply voltage for the complete display or segment.
• Segment current must be limited externally according to the selected supply and driver circuit.
• This is not a self-contained digital module; the manufacturer does not specify an integrated controller, decoder or communication interface.

Technical specifications

Parameter	Value
Manufacturer	FORYARD
Model	FYS-23011AUHR-21
Product type	Single-digit LED display
Display configuration	7 segments + decimal point (DP)
Number of digits	1
Digit height	56.8 mm (2.3")
Digit width, mechanical drawing	32.4 mm
Emitting colour	Red, UHR (“Ultra Hi Red”)
LED die material	AlGaInP
Peak wavelength λp	640 nm
Spectral line half-width Δλ1/2	20 nm
Luminous intensity Iv	30–60 mcd
Optical-characteristic test conditions	IF = 20 mA, Ta = 25 °C
LED die forward voltage VF	typ. 1.9 V; max. 2.5 V at IF = 20 mA
Segment-to-segment luminous-intensity ratio	max. 1.5:1
Common electrode	Cathode
Maximum continuous forward current IF	30 mA
Maximum pulse current Ipeak	150 mA at 0.1 ms pulse duration and 1 kHz
Maximum power dissipation Pd	100 mW
Reverse-voltage VR value shown in datasheet	5 V
Operating temperature	–40…+85 °C
Storage temperature	–40…+85 °C
Mounting	THT
Lead pitch	2.54 mm
Row pitch	60.2 mm
Pin diameter	Ø0.60 mm
Body dimensions (W × H × D)	47.8 × 69.7 × 12.0 mm
Decimal-point diameter	Ø5.5 mm
REF surface colour according to “-21” code	Grey
Epoxy colour according to “-21” code	White
Compliance	RoHS compliant

Construction and pinout

The display uses a moulded-case construction and two rows of THT leads. The manufacturer's mechanical drawing specifies 0.60 mm diameter pins, 2.54 mm pin pitch and 60.2 mm spacing between the two pin rows.

Pin assignment for the common-cathode FYS-23011A version:

Pin	Function
1	Common cathode
2	Segment E
3	Segment D
4	Segment C
5	Common cathode
6	Segment B
7	Segment A
8	Decimal point DP
9	Segment F
10	Segment G

Important operating notes

• LED segment current must be limited by appropriate resistors or a regulated-current driver circuit.
• The 30 mA figure is an absolute maximum continuous forward-current rating, not a recommended normal operating point.
• Optical characteristics are specified at IF = 20 mA and Ta = 25 °C.
• Power-supply design must take the internal series LED arrangement into account; the 1.9 V typical / 2.5 V maximum figures in the datasheet describe UHR LED-die characteristics.
• The manufacturer states that specifications are subject to change without notice.

Package contents

• 1 × FORYARD FYS-23011AUHR-21 LED display