104990131 16-Segment Alphanumeric LED Display Module

Part Overview

The 104990131 is a single-character 16-segment alphanumeric LED display module manufactured by Seeed Technology Co., Ltd. This component is classified as a Display Module featuring LED character and numeric capabilities with green color output. The part operates as a common anode configuration and is housed in an 18-DIP package format.

The 104990131 has reached obsolete product status. Locating equivalent substitute parts becomes necessary for new designs, production continuity, and system maintenance where this component is no longer readily available through standard distribution channels.

Substiute Parts

104990131

Seeed Technology Co., LtdIn Stock: 732104990131 Datasheet

Current PartRFQ

PSA08-12GWA

KingbrightIn Stock: 1251PSA08-12GWA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 104990131 must satisfy the following core electrical and mechanical parameters to ensure functional compatibility:

Mandatory Matching Parameters:

• Display Type: 16-Segment, Alphanumeric configuration
• Number of Characters: Single character (1)
• Common Pin Configuration: Common Anode
• Color: Green
• Digit/Alpha Size: 0.80" (20.32mm)
• Physical Dimensions: 1.091" H x 0.787" W x 0.335" D (27.70mm x 20.00mm x 8.50mm)
• Package / Case: 18-DIP (0.600", 15.24mm)

Allowable Parameter Variations: Substitute parts may differ in forward voltage (Vf), test current, millicandela rating, and wavelength peak within the green spectrum, provided the display maintains the same alphanumeric 16-segment architecture and physical form factor. These electrical variations are acceptable because circuit design can accommodate different drive requirements through resistor and current-limiting adjustments.

The PSA08-12GWA from Kingbright meets all mandatory matching parameters and qualifies as a direct substitute for the obsolete 104990131.

Parameter Comparison

Engineering Selection Recommendations

The PSA08-12GWA from Kingbright is an active product with current manufacturing status and full availability through distribution channels. This substitute part maintains identical mechanical compatibility and display architecture with the obsolete 104990131.

The PSA08-12GWA carries RoHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements for new designs and production applications. Both parts share EAR99 ECCN classification and identical HTSUS commodity codes.

Electrical parameter differences between the two parts are within acceptable design tolerance ranges. The PSA08-12GWA operates at a lower forward voltage (2.2V versus 3.2V) and higher test current (20mA versus 10mA). These differences require circuit-level adjustments to current-limiting resistor values but do not affect the fundamental display functionality or pin compatibility.

The PSA08-12GWA is suitable for direct substitution in applications where the 104990131 was originally specified, with appropriate recalculation of series resistor values to accommodate the different electrical characteristics.

Frequently Asked Questions (FAQ)

Q: Can the PSA08-12GWA be used as a direct pin-for-pin replacement for the 104990131?

A: Yes. Both parts use identical 18-DIP package pinouts and common anode configuration. The physical form factor and pin assignments are fully compatible.

Q: What design changes are required when substituting the PSA08-12GWA for the 104990131?

A: The primary change involves recalculating series resistor values for current limiting. The PSA08-12GWA operates at 2.2V forward voltage and 20mA test current, compared to the 104990131 at 3.2V and 10mA. Adjust resistor values according to your circuit's supply voltage and desired brightness level.

Q: Are there differences in display brightness between these two parts?

A: Yes. The 104990131 has a 250mcd millicandela rating, while the PSA08-12GWA has an 11mcd rating. The 104990131 produces significantly higher brightness. If brightness is a critical design requirement, this difference must be evaluated for your specific application.

Q: Do both parts operate with the same wavelength?

A: No. The 104990131 has a peak wavelength of 517nm (yellow-green), while the PSA08-12GWA has a peak wavelength of 565nm (pure green). Both are within the green spectrum but produce visually distinct color characteristics.

Q: What is the moisture sensitivity level for the PSA08-12GWA?

A: The PSA08-12GWA has MSL 1 (Unlimited), identical to the 104990131. Both parts have unlimited moisture sensitivity classification.

Q: Is the PSA08-12GWA currently available for purchase?

A: Yes. The PSA08-12GWA has active product status with current manufacturing and distribution availability, unlike the obsolete 104990131.