0.28 inch 4 digit clock 7 segment display, mini 4 digit LED digital tube with colon, 0.28" clock indicator, through hole LED module, common cathode display for mini clock portable wearable timer
cathode led digital tube
,7 segment led digital tube
,7 segment common cathode display
Product Title
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Product Description
Why Choose Our 0.28 Inch 4 Digit Clock LED 7 Segment Display?
Ultra-compact 0.28-inch digit height, ultra-small footprint, built-in time colon, specially customized for slim mini clocks, wearable devices and compact portable timing equipment
Matte black anti-glare mask fully blocks stray light, eliminates light crosstalk between segments, delivers sharp clear digits under all indoor lighting
Equipped with middle time colon and 4 independent decimal points, supports simultaneous display of hour/minute and precise decimal parameters
Dual polarity options: common anode / common cathode, fully compatible with all mainstream MCU circuit systems
Complete luminous color options: red, green, blue, pure white, yellow, adjustable brightness for low-cost & high-end miniature products
Standard through-hole DIP pin layout, compatible with wave soldering and manual welding for mass production
Wide operating temperature range -20℃ ~ +85℃, stable 24-hour continuous operation
Custom service available: customized pin definition, surface silk screen, brightness adjustment, special anti-static packaging
Sufficient stock for standard models, 3-7 days fast lead time for bulk orders
Wide Application
Specification Table
| Item | Specification |
|---|---|
| Digit Size | 0.28 inch |
| Digit Quantity | 4 digits, built-in time colon + 4 independent decimal points |
| Mounting Type | Through hole DIP dual in-line package |
| Polarity | Common Anode / Common Cathode optional |
| Optional Luminous Color | Red, Green, Blue, White, Yellow |
| Operating Temperature | -20℃ ~ +85℃ |
| Compatible Driver IC | TM1637, 74HC573, CD4511, MAX7219 |
Our Factory Advantages
100% full lighting aging inspection before shipment, strict QC control to cut defective rate
Flexible MOQ: small sample trial & large bulk wholesale both supported
Professional engineering team, free circuit matching technical guidance
All products RoHS & REACH compliant, meet global export standards
Stable monthly production capacity, guaranteed on-time delivery for long-term cooperative clients
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