FH19SC-4S-0.5SH(09) Equivalent & Substitute Parts

Part Overview

The FH19SC-4S-0.5SH(09) is a 4-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, making equivalent and substitute parts necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	FH19SC-4S-0.5SH(09)
Manufacturer	Hirose Electric Co Ltd
Category	FFC, FPC (Flat Flexible) Connectors
Number of Positions	4
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
Locking Feature	Flip Lock
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the FH19SC-4S-0.5SH(09) is determined by the following critical parameters:

Electrical compatibility: Voltage rating (50V), current rating (0.5A), and operating temperature range (-55°C ~ 85°C)
Mechanical compatibility: 4-position configuration, 0.5mm pitch, surface mount right-angle mounting
Functional compatibility: Flip lock mechanism, zero insertion force (ZIF) operation, solder termination
Physical compatibility: FFC/FPC connector type with tapered cable end, 0.30mm FFC thickness

The identified substitute parts maintain these core parameters while offering active product status and improved availability.

Parameter Comparison

Parameter	FH19SC-4S-0.5SH(09)	FH33J-4S-0.5SH(10)	AYF530435
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Panasonic Electric Works
Number of Positions	4	4	4
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, Top and Bottom
Voltage Rating	50V	50V	50V
Current Rating	0.5A	0.5A	0.5A per Contact
Operating Temperature	-55°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 85°C
Locking Feature	Flip Lock	Flip Lock	Flip Lock, Backlock
FFC Thickness	0.30mm	0.30mm	0.30mm
Height Above Board	0.037" (0.95mm)	0.047" (1.20mm)	0.039" (1.00mm)
Contact Material	Phosphor Bronze	Phosphor Bronze	Copper Alloy
Contact Finish	Gold	Gold	Gold
Housing Material	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP), Halogen Free	Liquid Crystal Polymer (LCP)
Termination	Solder	Solder	Solder
Product Status	Obsolete	Active	Active
Mating Cycles	20	20	20
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

FH33J-4S-0.5SH(10) is the primary substitute from Hirose Electric Co Ltd. This part maintains identical electrical and mechanical specifications while offering active product status. The FH33J series provides improved availability with 6003 units in stock compared to the obsolete FH19SC. The housing material includes halogen-free LCP, supporting environmental compliance requirements. Height above board increases from 0.95mm to 1.20mm, which must be verified against PCB layout constraints.

AYF530435 from Panasonic Electric Works is an alternative substitute with active product status and significantly higher inventory (69779 units). This part differs in contact configuration (top and bottom contacts versus bottom only) and includes backlock in addition to flip lock mechanism. The height above board is 1.00mm, positioned between the original and primary substitute. Contact material is copper alloy rather than phosphor bronze. This part is ROHS3 compliant and REACH unaffected, providing additional regulatory compliance documentation.

Selection between substitutes depends on PCB layout compatibility (height above board), contact configuration requirements (bottom only versus top and bottom), and compliance documentation needs.

Frequently Asked Questions (FAQ)

Q: Can FH33J-4S-0.5SH(10) directly replace FH19SC-4S-0.5SH(09)?

A: Yes, electrically and functionally. The FH33J maintains 4-position, 0.5mm pitch, 50V/0.5A ratings, and flip lock ZIF operation. The primary difference is height above board (1.20mm versus 0.95mm), which requires PCB layout verification.

Q: What is the difference between bottom contacts and top/bottom contacts?

A: The FH19SC and FH33J feature bottom contact configuration only. The AYF530435 provides both top and bottom contacts, allowing connection from either side of the FFC/FPC cable. This affects cable routing and assembly procedures.

Q: Are there packaging differences between substitutes?

A: FH19SC-4S-0.5SH(09) packaging is not specified. FH33J-4S-0.5SH(10) is supplied in Tape & Reel (TR). AYF530435 is also supplied in Tape & Reel (TR). Verify packaging requirements for your procurement process.

Q: Does the halogen-free housing of FH33J affect compatibility?

A: No. Halogen-free LCP is a material upgrade that maintains electrical and mechanical compatibility while supporting environmental compliance standards. It does not affect electrical performance or mechanical fit.

Q: What is the significance of the backlock feature in AYF530435?

A: Backlock provides additional mechanical retention of the FFC/FPC cable beyond the flip lock mechanism. This is a functional enhancement that does not prevent substitution but may provide improved cable retention in vibration-prone applications.

Q: Are all three parts RoHS compliant?

A: FH19SC-4S-0.5SH(09) compliance status is not specified. FH33J-4S-0.5SH(10) compliance status is not specified. AYF530435 is ROHS3 compliant. Verify RoHS compliance requirements for your application before final selection.

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