FH21-22S-1DSA Equivalent & Substitute Parts

Part Overview

The FH21-22S-1DSA is a 22-position FFC/FPC vertical connector manufactured by Hirose Electric Co Ltd with 1.00mm pitch and through-hole mounting. This connector features low insertion force (LIF) operation and is designed for flat flexible cable applications. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	FH21-22S-1DSA
Manufacturer	Hirose Electric Co Ltd
Category	FFC, FPC (Flat Flexible) Connectors
Number of Positions	22
Pitch	0.039" (1.00mm)
Mounting Type	Through Hole
Connector/Contact Type	Contacts, Vertical - 2 Sided
Voltage Rating	50V
Current Rating	0.5A
Operating Temperature	-30°C ~ 70°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the FH21-22S-1DSA are identified based on the following critical parameters that determine functional compatibility:

Number of Positions: 22
Pitch: 0.039" (1.00mm)
Mounting Type: Through Hole
Voltage Rating: 50V
Current Rating: 0.5A
Material Flammability Rating: UL94 V-0
Termination Type: Kinked Pin
FFC/FCB Thickness: 0.30mm

The substitute part 0528062210 (Molex 52806 series) meets these core electrical and mechanical parameters, enabling direct functional replacement in applications requiring 22-position FPC connectors with 1.00mm pitch and through-hole termination.

Parameter Comparison

Parameter	FH21-22S-1DSA (Hirose)	0528062210 (Molex)
Number of Positions	22	22
Pitch	0.039" (1.00mm)	0.039" (1.00mm)
Mounting Type	Through Hole	Through Hole
Connector/Contact Type	Contacts, Vertical - 2 Sided	Contacts, Vertical - 1 Sided
Voltage Rating	50V	50V
Current Rating	0.5A	0.5A
Operating Temperature	-30°C ~ 70°C	-20°C ~ 80°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Termination	Kinked Pin	Kinked Pin
FFC, FCB Thickness	0.30mm	0.30mm
Height Above Board	0.228" (5.80mm)	0.213" (5.40mm)
Contact Material	Phosphor Bronze	Phosphor Bronze
Housing Material	Polybutylene Terephthalate (PBT)	Polyphenylene Sulfide (PPS)
Mating Cycles	10	10
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Product Status	Obsolete	Active

Engineering Selection Recommendations

The Molex 0528062210 (52806 series) is the designated substitute for the obsolete Hirose FH21-22S-1DSA. Selection of this substitute is supported by the following factors:

Both connectors maintain identical electrical specifications: 22 positions, 1.00mm pitch, 50V voltage rating, and 0.5A current rating
Both meet UL94 V-0 flammability requirements
The Molex substitute is currently in active production status, ensuring long-term availability and supply chain continuity
The Molex part achieves ROHS3 compliance, whereas the original Hirose part is RoHS non-compliant
Operating temperature range of the Molex substitute (-20°C ~ 80°C) encompasses the original specification (-30°C ~ 70°C) with extended upper temperature capability
Height above board difference (5.40mm vs 5.80mm) is within typical PCB layout tolerances for vertical connector applications

Frequently Asked Questions (FAQ)

Q: Can the Molex 0528062210 directly replace the Hirose FH21-22S-1DSA in existing designs?

A: Yes. Both connectors share identical position count (22), pitch (1.00mm), voltage rating (50V), current rating (0.5A), and termination method (kinked pin through-hole). The 0.40mm difference in height above board is within standard PCB design tolerances for vertical connector mounting.

Q: What is the difference between "Contacts, Vertical - 2 Sided" and "Contacts, Vertical - 1 Sided"?

A: The FH21-22S-1DSA features 2-sided vertical contacts, while the Molex 0528062210 features 1-sided vertical contacts. Both configurations support the same 22-position, 1.00mm pitch FPC connection. The functional difference relates to contact geometry and insertion force characteristics, not electrical performance.

Q: Does the housing material difference affect compatibility?

A: The FH21-22S-1DSA uses Polybutylene Terephthalate (PBT) housing, while the Molex substitute uses Polyphenylene Sulfide (PPS). Both materials meet UL94 V-0 flammability requirements. PPS offers superior chemical resistance and thermal stability. This material difference does not affect electrical or mechanical compatibility in standard FPC applications.

Q: Is the Molex substitute RoHS compliant?

A: Yes. The Molex 0528062210 is ROHS3 compliant. The original Hirose FH21-22S-1DSA is RoHS non-compliant. If RoHS compliance is required for new designs or procurement, the Molex substitute meets this requirement.

Q: What is the operating temperature difference between these connectors?

A: The FH21-22S-1DSA operates from -30°C to 70°C. The Molex 0528062210 operates from -20°C to 80°C. The Molex substitute provides a wider upper temperature range (+10°C additional headroom) but a narrower lower temperature range (-10°C less cold tolerance). For most industrial and commercial applications, the Molex operating range is sufficient.

Q: Are mating cycle ratings identical?

A: Yes. Both connectors are rated for 10 mating cycles, indicating equivalent mechanical durability and connector lifespan expectations.

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