FH19SC-4S-0.5SH(10) Equivalent & Substitute Parts

Part Overview

The FH19SC-4S-0.5SH(10) 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 classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and legacy system support.

Key Parameters

Parameter	Value
Manufacturer Part Number	FH19SC-4S-0.5SH(10)
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
Features	Zero Insertion Force (ZIF)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the FH19SC-4S-0.5SH(10) is determined by strict adherence to the following critical parameters:

Number of Positions: Must be 4
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
Current Rating: Must be 0.5A
Operating Temperature Range: Must be -55°C ~ 85°C
Locking Feature: Must be Flip Lock
Features: Must include Zero Insertion Force (ZIF)

Two active substitute parts meet these criteria: FH19C-4S-0.5SH(10) and FH33J-4S-0.5SH(10). Both are manufactured by Hirose Electric Co Ltd and maintain full electrical and mechanical compatibility with the obsolete FH19SC series.

Parameter Comparison

Parameter	FH19SC-4S-0.5SH(10)	FH19C-4S-0.5SH(10)	FH33J-4S-0.5SH(10)
Product Status	Obsolete	Active	Active
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, Bottom
Voltage Rating	50V	50V	50V
Current Rating	0.5A	0.5A	0.5A
Operating Temperature	-55°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 85°C
Locking Feature	Flip Lock	Flip Lock	Flip Lock
Features	Solder Retention, Zero Insertion Force (ZIF)	Solder Retention, Zero Insertion Force (ZIF)	Zero Insertion Force (ZIF)
FFC, FCB Thickness	0.30mm	0.20mm	0.30mm
Height Above Board	0.037" (0.95mm)	0.035" (0.88mm)	0.047" (1.20mm)
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish	Gold	Gold	Gold
Housing Material	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP), Halogen Free
Mating Cycles	20	20	20
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Both FH19C-4S-0.5SH(10) and FH33J-4S-0.5SH(10) are qualified substitutes for the obsolete FH19SC-4S-0.5SH(10) based on electrical and mechanical parameter equivalence.

FH19C-4S-0.5SH(10) is the manufacturer-recommended primary substitute. It maintains the same series base product number (FH19) and offers the closest physical profile with a height above board of 0.035" (0.88mm) compared to the original 0.037" (0.95mm). This part is RoHS3 compliant and REACH unaffected, with 27,800 units in current inventory.

FH33J-4S-0.5SH(10) serves as an alternative substitute from the FH33 series. It features halogen-free housing material and is RoHS compliant. The height above board is 0.047" (1.20mm), which represents a 0.052" (1.25mm) increase from the original specification. This part has 6,003 units in inventory.

Selection between these two substitutes should be based on PCB layout constraints and specific application requirements regarding board height clearance. Both parts maintain full electrical compatibility and identical contact ratings.

Frequently Asked Questions (FAQ)

Q: Can FH19C-4S-0.5SH(10) be used as a direct replacement for FH19SC-4S-0.5SH(10)?

A: Yes. Both parts share identical electrical specifications (50V, 0.5A), mechanical configuration (4-position, 0.5mm pitch, surface mount right-angle), and operational features (flip-lock, ZIF). The primary difference is FFC thickness (0.20mm vs. 0.30mm) and height above board (0.035" vs. 0.037"), which do not affect functional compatibility.

Q: What is the difference between FH19C and FH33J substitutes?

A: Both are electrically and mechanically equivalent. The FH33J features halogen-free housing material and a greater height above board (0.047" vs. 0.035"). Selection depends on PCB layout constraints and environmental compliance requirements. FH19C is the manufacturer-recommended primary option.

Q: Are there packaging differences between these parts?

A: FH19SC-4S-0.5SH(10) was supplied in standard packaging. Both FH19C-4S-0.5SH(10) and FH33J-4S-0.5SH(10) are available in Tape & Reel (TR) packaging, which is standard for high-volume production applications.

Q: Do these substitutes meet RoHS and REACH requirements?

A: FH19C-4S-0.5SH(10) is RoHS3 compliant and REACH unaffected. FH33J-4S-0.5SH(10) is RoHS compliant. Both meet current environmental compliance standards for electronic components.

Q: What is the mating cycle rating for these connectors?

A: All three parts (original and both substitutes) are rated for 20 mating cycles, indicating they are designed for applications with limited connection/disconnection cycles.

Q: Are the actuator colors different between parts?

A: Yes. FH19SC features a black actuator, FH19C features a brown actuator, and FH33J does not specify actuator color. This is a cosmetic difference with no functional impact.

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