FH19SC-40S-0.5SH(09) FFC/FPC Connector - Equivalent & Substitute Parts

Part Overview

The FH19SC-40S-0.5SH(09) is a 40-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-mounted contacts, solder termination, and a flip lock mechanism suitable for flat flexible cable assemblies.

The FH19SC-40S-0.5SH(09) is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this connector.

Key Parameters

Parameter	Value
Manufacturer Part Number	FH19SC-40S-0.5SH(09)
Manufacturer	Hirose Electric Co Ltd
Category	FFC, FPC (Flat Flexible) Connectors
Number of Positions	40
Pitch	0.020" (0.50mm)
Mounting Type	Surface Mount, Right Angle
Connector/Contact Type	Contacts, Bottom
Termination	Solder
Voltage Rating	50V
Current Rating	0.5A
Operating Temperature Range	-55°C ~ 85°C
Locking Feature	Flip Lock
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the FH19SC-40S-0.5SH(09) is determined by the following critical parameters:

Position Count: 40 positions (fixed requirement)
Pitch: 0.020" (0.50mm) (fixed requirement)
Mounting Configuration: Surface mount, right angle (fixed requirement)
Contact Orientation: Bottom contacts (fixed requirement)
Termination Method: Solder (fixed requirement)
Voltage Rating: Minimum 50V
Current Rating: Minimum 0.5A
Operating Temperature: Must support -55°C ~ 85°C range or equivalent
Locking Mechanism: Flip lock (preferred for mechanical compatibility)

Two substitute parts meet these criteria and are available from active product lines:

FH33J-40S-0.5SH(10) - Hirose Electric Co Ltd (Active status, higher inventory availability)
FFC2B35-40-G - GCT (Active status, alternative manufacturer)

Parameter Comparison

Parameter	FH19SC-40S-0.5SH(09)	FH33J-40S-0.5SH(10)	FFC2B35-40-G
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	GCT
Number of Positions	40	40	40
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
Termination	Solder	Solder	Solder
Height Above Board	0.037" (0.95mm)	0.047" (1.20mm)	0.079" (2.00mm)
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
Locking Feature	Flip Lock	Flip Lock	Flip Lock
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish	Gold	Gold	Gold
Mating Cycles	20	20	30
Product Status	Obsolete	Active	Active
RoHS Status	Not specified	RoHS Compliant	ROHS3 Compliant

Engineering Selection Recommendations

FH33J-40S-0.5SH(10) (Hirose Electric Co Ltd)

This substitute is the primary recommendation for direct replacement of the FH19SC-40S-0.5SH(09). It maintains identical electrical specifications (50V, 0.5A), operating temperature range (-55°C ~ 85°C), and mechanical configuration (40 positions, 0.5mm pitch, bottom contacts, right angle, flip lock). The FH33J series is in active production status with RoHS compliance certification, ensuring long-term supply chain stability. The height above board increases from 0.95mm to 1.20mm; PCB layout verification is required to confirm clearance compatibility.

FFC2B35-40-G (GCT)

This substitute provides an alternative from a different manufacturer. It meets the core electrical and mechanical requirements (40 positions, 0.5mm pitch, bottom contacts, right angle, flip lock, 50V rating). However, the current rating is specified at 0.4A, which is below the original 0.5A specification. The operating temperature range is limited to -25°C ~ 85°C, which does not support the full -55°C lower temperature requirement of the original part. The height above board is 2.00mm, requiring significant PCB layout verification. This option is suitable only for applications where the reduced current rating and narrower temperature range are acceptable.

Frequently Asked Questions (FAQ)

Q: Can FH33J-40S-0.5SH(10) be used as a direct drop-in replacement for FH19SC-40S-0.5SH(09)?

A: Electrical and contact specifications are identical. The primary difference is the height above board: FH33J measures 1.20mm versus 0.95mm for the original. PCB layout must be verified to confirm adequate clearance above the connector. If clearance is available, this is a direct functional replacement.

Q: What are the key differences between the two substitute options?

A: FH33J-40S-0.5SH(10) maintains full electrical specifications (0.5A, -55°C ~ 85°C) and is from the same manufacturer as the original. FFC2B35-40-G has a reduced current rating (0.4A) and narrower operating temperature range (-25°C ~ 85°C). FFC2B35-40-G also has a significantly larger height above board (2.00mm). Selection depends on application requirements for current capacity and temperature range.

Q: Are there packaging differences between these substitutes?

A: FH33J-40S-0.5SH(10) is supplied in Tape & Reel (TR) packaging with 5572 pieces in stock. FFC2B35-40-G is also supplied in Tape & Reel (TR) packaging with 824 pieces in stock. Both are suitable for automated assembly processes.

Q: What is the significance of the mating cycle ratings?

A: The original FH19SC-40S-0.5SH(09) and FH33J-40S-0.5SH(10) both specify 20 mating cycles. FFC2B35-40-G specifies 30 mating cycles, indicating higher mechanical durability for repeated connection/disconnection operations. For applications with infrequent mating, this difference is not significant.

Q: Does RoHS compliance affect substitution eligibility?

A: Both active substitutes (FH33J-40S-0.5SH(10) and FFC2B35-40-G) carry RoHS compliance certifications. If the original design requires RoHS compliance for regulatory or customer requirements, both substitutes satisfy this requirement.

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