FH19SC-45S-0.5SH(09) Equivalent & Substitute Parts

Part Overview

The FH19SC-45S-0.5SH(09) is a 45-position FFC/FPC connector manufactured by Hirose Electric Co Ltd, designed for surface mount, right-angle applications with 0.5mm pitch contacts. This connector features bottom-contact configuration, flip-lock mechanism, and zero insertion force (ZIF) operation. The part is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	FH19SC-45S-0.5SH(09)
Manufacturer	Hirose Electric Co Ltd
Category	FFC, FPC (Flat Flexible) Connectors
Number of Positions	45
Pitch	0.020" (0.50mm)
Mounting Type	Surface Mount, Right Angle
Connector/Contact Type	Contacts, Bottom
Voltage Rating	50V
Current Rating	0.5A
Operating Temperature	-55°C ~ 85°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the FH19SC-45S-0.5SH(09) is determined by the following critical parameters:

Number of Positions: Must be 45
Pitch: Must be 0.020" (0.50mm)
Mounting Type: Must be Surface Mount, Right Angle
Connector/Contact Type: Must be Contacts, Bottom
Voltage Rating: Must be 50V or higher
Current Rating: Must be 0.5A or higher
Termination: Must be Solder
Locking Feature: Must be Flip Lock
Material Flammability Rating: Must be UL94 V-0

Two substitute parts meet these criteria and are identified as manufacturer-recommended alternatives.

Parameter Comparison

Parameter	FH19SC-45S-0.5SH(09)	FH33-45S-0.5SH(10)	FFC2B35-45-G
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	GCT
Product Status	Obsolete	Active	Active
Number of Positions	45	45	45
Pitch	0.020" (0.50mm)	0.020" (0.50mm)	0.020" (0.50mm)
Mounting Type	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle
Connector/Contact Type	Contacts, Bottom	Contacts, Bottom	Contacts, Bottom
Voltage Rating	50V	50V	50V
Current Rating	0.5A	0.5A	0.4A
Operating Temperature	-55°C ~ 85°C	-55°C ~ 85°C	-25°C ~ 85°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Locking Feature	Flip Lock	Flip Lock	Flip Lock
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish	Gold	Gold	Gold
FFC, FCB Thickness	0.30mm	0.30mm	0.30mm
Height Above Board	0.037" (0.95mm)	0.047" (1.20mm)	0.079" (2.00mm)
Mating Cycles	20	20	30
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

FH33-45S-0.5SH(10) (Hirose Electric Co Ltd) is the primary substitute. This part maintains identical electrical specifications (50V, 0.5A) and operating temperature range (-55°C ~ 85°C) as the original FH19SC-45S-0.5SH(09). The FH33 series is active and RoHS Compliant, ensuring long-term availability and regulatory compliance. The height above board increases from 0.95mm to 1.20mm, which must be verified against PCB layout constraints.

FFC2B35-45-G (GCT) is an alternative substitute from a different manufacturer. This part meets all critical electrical and mechanical parameters with identical pitch, position count, and voltage rating. However, the current rating is 0.4A (versus 0.5A), the operating temperature minimum is -25°C (versus -55°C), and the height above board is 0.079" (2.00mm). This part is suitable only for applications where the reduced current rating and narrower temperature range are acceptable. The FFC2B35-45-G offers higher mating cycle rating (30 versus 20).

Frequently Asked Questions (FAQ)

Q: Can FH33-45S-0.5SH(10) be used as a direct replacement for FH19SC-45S-0.5SH(09)?

A: Yes, the FH33-45S-0.5SH(10) meets all critical substitution parameters: 45 positions, 0.5mm pitch, surface mount right-angle configuration, bottom contacts, 50V voltage rating, 0.5A current rating, and UL94 V-0 flammability rating. The primary design consideration is the increased height above board (1.20mm versus 0.95mm), which must be verified against PCB clearance requirements.

Q: What are the key differences between FH33-45S-0.5SH(10) and FFC2B35-45-G?

A: Both parts share identical position count, pitch, mounting type, and voltage rating. The FFC2B35-45-G has a lower current rating (0.4A versus 0.5A), narrower operating temperature range (-25°C to 85°C versus -55°C to 85°C), and greater height above board (2.00mm versus 1.20mm). The FFC2B35-45-G provides higher mating cycle rating (30 versus 20).

Q: Are there packaging differences between the substitute parts?

A: FH33-45S-0.5SH(10) is supplied in Tape & Reel (TR) packaging. FFC2B35-45-G is also supplied in Tape & Reel (TR) packaging. Both are suitable for automated assembly processes.

Q: What is the impact of height above board differences?

A: The FH19SC-45S-0.5SH(09) has a height of 0.95mm, FH33-45S-0.5SH(10) is 1.20mm, and FFC2B35-45-G is 2.00mm. These differences affect PCB layout, component spacing, and enclosure clearance. Verify that the substitute part's height does not violate design constraints before implementation.

Q: Which substitute should be selected for new designs?

A: FH33-45S-0.5SH(10) is recommended for new designs due to active product status, full parameter compatibility with the original part, and RoHS compliance. FFC2B35-45-G is suitable only when the reduced current rating and operating temperature range are acceptable for the application.

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