LTP-3784WC-01 Equivalent & Substitute Parts

Part Overview

The LTP-3784WC-01 is a 14-segment alphanumeric LED display module manufactured by Lite-On Inc. This 2-character red display operates as a common cathode configuration and is housed in an 18-DIP package. The component is currently in active product status and RoHS3 compliant. Substitute parts may be required due to inventory availability, supply chain considerations, or specific application requirements within the electrical and mechanical parameter constraints of this display category.

Substiute Parts

LTP-3784WC-01

Lite-On Inc.In Stock: 1154LTP-3784WC-01 Datasheet

Current PartRFQ

HDSP-A27C

Broadcom LimitedIn Stock: 2296HDSP-A27C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LTP-3784WC-01 is determined by strict adherence to the following electrical and mechanical parameters:

• Display Configuration: 2-character, 14-segment alphanumeric display
• Common Pin Type: Common cathode only
• Color: Red LED
• Character Size: 0.54" (13.72mm)
• Package Type: 18-DIP (0.600", 15.24mm)
• Compliance: RoHS3 compliant, MSL 1

The HDSP-A27C from Broadcom Limited meets these core substitution criteria. Both parts share identical display type, character count, common cathode configuration, color, character size, and package specifications. Variations in forward voltage, test current, and wavelength peak are within acceptable ranges for this component category and do not preclude substitution when electrical design parameters accommodate these differences.

Parameter Comparison

Engineering Selection Recommendations

Both the LTP-3784WC-01 and HDSP-A27C are active products with RoHS3 compliance and MSL 1 ratings, making them suitable for equivalent substitution within applications that accommodate the specified electrical parameter differences. The HDSP-A27C provides higher brightness output (18mcd ~ 36mcd versus 3.75mcd) and operates at slightly elevated forward voltage (1.9V versus 1.7V) and test current (20mA versus 5mA). Physical dimensions are comparable with minor variations within acceptable tolerances for 18-DIP package specifications. Selection between these parts should be based on application-specific brightness requirements and power budget constraints.

Frequently Asked Questions (FAQ)

Q: Can the HDSP-A27C directly replace the LTP-3784WC-01 in existing designs?

A: Direct replacement is possible when the circuit design accommodates the HDSP-A27C's higher forward voltage (1.9V versus 1.7V) and increased test current (20mA versus 5mA). Pin configuration and package type are identical, and both parts are common cathode 18-DIP devices. Circuit current-limiting resistor values may require adjustment.

Q: What are the key differences between these two 14-segment displays?

A: The primary differences are forward voltage, test current, brightness rating, and wavelength peak. The HDSP-A27C offers significantly higher brightness (18mcd ~ 36mcd) compared to the LTP-3784WC-01 (3.75mcd). The wavelength peak differs slightly (635nm versus 660nm), resulting in a marginally different red hue perception.

Q: Are both parts suitable for new designs?

A: Both parts are active products with current manufacturing status and RoHS3 compliance, making them suitable for new designs. Selection should be based on brightness requirements, power dissipation constraints, and supply chain availability.

Q: Do these parts have identical physical dimensions?

A: Physical dimensions are comparable but not identical. The LTP-3784WC-01 measures 0.833" H x 0.989" W x 0.307" D, while the HDSP-A27C measures 0.827" H x 0.992" W x 0.276" D. These minor variations remain within acceptable tolerances for 18-DIP package specifications and do not affect PCB footprint compatibility.

Q: What compliance certifications apply to both parts?

A: Both the LTP-3784WC-01 and HDSP-A27C are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings. Both carry EAR99 ECCN classification and HTSUS code 8541.41.0000.