0.39 Inch 4 Digit 7 Segment LED Display
0.39 Inch 4 Digit 7 Segment LED Display
Houkem manufactures 0.39 inch 4 digit 7 segment LED displays for electronic instruments, industrial equipment, audio equipment, control panels, clocks, and other OEM applications. This compact numeric LED module features a 7mm digit height, super red emission, black or grey surface options, and cathode or anode polarity to support different circuit requirements.
Designed for professional B2B applications, the display combines compact dimensions, clear numeric indication, stable electrical performance, and flexible customization. OEM customers, electronic equipment manufacturers, instrument suppliers, and component distributors can request samples and customized specifications according to their equipment requirements.
Product Specifications
| Parameter | Specification |
|---|---|
| Part No. | Houkem-3942-A/BSR |
| Display Type | 4 Digit 7 Segment LED Display |
| Digit Height | 0.39 inch / 7mm |
| Dimension | 40.18 × 12.8 × 7mm |
| Emitting Color | Super Red |
| Luminous Intensity | 80–120mcd/chip |
| Surface Color | Black / Grey |
| Epoxy Color | Milky White / Clear |
| Polarity | Common Cathode / Common Anode |
| LED Chips | EpiLEDs, Epistar, Bridgelux |
| Operating Current | 20mA |
| Forward Voltage | 1.8–2.3V |
| Lifespan | 50,000 hours |
| Warranty | Please confirm according to the final configuration |
| Certification | CE, RoHS |
If you require other electrical, optical, dimensional, or pin configurations, please contact our sales team for technical confirmation.
Compact Red LED Module for OEM Equipment
The 0.39 inch display format provides a practical balance between compact installation space and readable numeric output. With four independent 7-segment digits, it can display numbers and basic numerical information in equipment where space is limited.
The super red LED configuration provides clear visual indication for instrument panels and electronic control interfaces. Common anode and common cathode options allow engineers to select a suitable configuration for their circuit design, while customized specifications can be discussed for OEM and ODM projects.
The module is manufactured with LED chips from EpiLEDs, Epistar, and Bridgelux options, depending on the required configuration. With a stated lifespan of 50,000 hours, it is suitable for equipment designed for continuous or frequent operation.
Typical Applications
This 0.39 Inch 4 Digit 7 Segment LED Display can be integrated into a wide range of professional electronic products, including:
Industrial equipment and control systems
Electronic instrument panels
Measurement and monitoring equipment
Audio equipment and instrument panels
Digital clocks and timers
Counters and numeric indicators
Home appliance control panels
OEM electronic devices
For equipment manufacturers, the display can be specified according to the required digit height, emitting color, polarity, electrical characteristics, and mechanical dimensions.
OEM Supply, Samples and Customization
Houkem supports B2B buyers with factory-direct manufacturing and technical customization. Sample orders are available, with a minimum order quantity of 1 piece for evaluation. Samples that are in stock can normally be arranged within 3–7 days, while mass production typically requires 25–30 days depending on order quantity and configuration.
Standard quotation terms include FOB, CIF, CFR, and EXW. Shipping can be arranged according to customer requirements, including express, air freight, LCL, or door-to-door delivery from China to the customer's warehouse.
Packaging can be supplied in standard cartons or customized color boxes. OEM logo customization is also available once the required MOQ is reached.
Frequently Asked Questions
Can I order samples of the 0.39 inch 4 digit LED display?
Yes, Houkem accepts sample orders with an MOQ of 1 piece for product evaluation and engineering testing.
Can the 4 digit 7 segment display be customized for OEM projects?
Yes, Houkem can discuss customized dimensions, colors, polarity, electrical specifications, packaging, and other requirements according to the project.
Is this LED display available in common anode and common cathode versions?
Yes, the product specification supports both cathode and anode configurations, allowing buyers to match the display with their circuit design.
What quotation and shipping terms are available for international buyers?
Houkem can provide FOB, CIF, CFR, and EXW quotations, with express, air freight, LCL, and door-to-door shipping options available.
What certifications are available for this LED module?
The product is specified as CE and RoHS compliant, while additional certification or compliance documentation should be confirmed for the exact configuration before purchase.
Request a Quote
Looking for a reliable 0.39 Inch 4 Digit 7 Segment LED Display for your instrument, industrial equipment, or OEM project? Contact Houkem with your required quantity, electrical specifications, polarity, display color, and application details.
Our team can provide product samples, technical information, customization support, and a B2B quotation for your project.
Our valid EU‑related certifications include CE, RoHS 2.0, REACH (SVHC), EMC. We are able to provide complete MSDS (Material Safety Data Sheet) documents for customers upon request.
All our LED products follow EU EMC directive, RoHS hazardous‑substance restrictions and REACH chemical regulations. Full certification files can be supplied before shipment.
