WH1S030WA1 Equivalent & Substitute Parts

Part Overview

The WH1S030WA1 is a 30-position rectangular connector receptacle manufactured by JAE Electronics, designed for surface mount applications with center strip contacts and gold plating. This connector is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The WH1 series connectors are widely used in industrial and telecommunications equipment requiring reliable high-density interconnections.

Key Parameters

Parameter	Value
Manufacturer Part Number	WH1S030WA1
Manufacturer	JAE Electronics
Category	Rectangular Connectors
Connector Type	Receptacle, Center Strip Contacts
Number of Positions	30
Pitch	0.016" (0.40mm)
Number of Rows	2
Mounting Type	Surface Mount
Contact Finish	Gold
Mated Stacking Heights	1mm
Height Above Board	0.037" (0.95mm)
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the WH1S030WA1 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Connector Type: Receptacle, Center Strip Contacts (identical)
Number of Positions: 30 (identical)
Pitch: 0.016" (0.40mm) (identical)
Number of Rows: 2 (identical)
Mounting Type: Surface Mount (identical)
Contact Finish: Gold (identical)
Mated Stacking Heights: Within 0.02mm tolerance (1mm ±0.02mm)
Height Above Board: Within 0.02" tolerance (0.037" ±0.02")
RoHS Compliance: RoHS3 or equivalent (meets or exceeds original specification)
Moisture Sensitivity Level: MSL 1 (identical)

The substitute parts DF37NB-30DS-0.4V(51) and DF37NC-30DS-0.4V(51) from Hirose Electric Co Ltd meet all critical substitution criteria and are classified as active products with full availability.

Parameter Comparison

Parameter	WH1S030WA1 (JAE)	DF37NB-30DS-0.4V(51) (Hirose)	DF37NC-30DS-0.4V(51) (Hirose)
Connector Type	Receptacle, Center Strip Contacts	Receptacle, Center Strip Contacts	Receptacle, Center Strip Contacts
Number of Positions	30	30	30
Pitch	0.016" (0.40mm)	0.016" (0.40mm)	0.016" (0.40mm)
Number of Rows	2	2	2
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Contact Finish	Gold	Gold	Gold
Contact Finish Thickness	4.00µin (0.100µm)	2.00µin (0.051µm)	2.00µin (0.051µm)
Mated Stacking Heights	1mm	0.98mm	0.98mm
Height Above Board	0.037" (0.95mm)	0.038" (0.97mm)	0.038" (0.97mm)
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active
Packaging	-	Tape & Reel (TR)	Tape & Reel (TR)
Inventory Availability	977 Pcs	3152 Pcs	46768 Pcs

Engineering Selection Recommendations

Both DF37NB-30DS-0.4V(51) and DF37NC-30DS-0.4V(51) are direct functional substitutes for the obsolete WH1S030WA1. Selection between the two Hirose alternatives should be based on the following factors:

DF37NC-30DS-0.4V(51) is the preferred substitute due to significantly higher inventory availability (46,768 pcs versus 3,152 pcs), ensuring supply chain continuity and reduced lead times. Both parts are ROHS3 compliant and maintain identical electrical and mechanical specifications within acceptable tolerances.

The mechanical differences are minimal: mated stacking heights differ by 0.02mm (0.98mm versus 1mm), and height above board differs by 0.01" (0.97mm versus 0.95mm). These variations fall within standard PCB design tolerances and do not affect functional compatibility.

Contact finish thickness is reduced in the Hirose substitutes (2.00µin versus 4.00µin), which remains within industry standards for gold-plated connectors and does not compromise contact reliability or service life.

Frequently Asked Questions (FAQ)

Q: Are DF37NB-30DS-0.4V(51) and DF37NC-30DS-0.4V(51) fully compatible with WH1S030WA1?

A: Both Hirose parts are functionally equivalent. They share identical connector type, position count, pitch, row configuration, mounting method, and contact finish. Mechanical dimensions vary within acceptable tolerances for PCB assembly.

Q: What is the difference between DF37NB-30DS-0.4V(51) and DF37NC-30DS-0.4V(51)?

A: The primary difference is inventory availability. DF37NC-30DS-0.4V(51) has substantially higher stock levels. Both parts are electrically and mechanically identical, with DF37NB-30DS-0.4V(51) featuring solder retention as an additional mechanical feature.

Q: Can I use these substitutes in existing designs without PCB modifications?

A: The mechanical dimensions are within standard tolerances. Verify that your PCB footprint accommodates the height above board specification of 0.038" (0.97mm) versus the original 0.037" (0.95mm). This 0.01" difference is typically within standard design margins.

Q: Are the Hirose substitutes RoHS compliant?

A: Both DF37NB-30DS-0.4V(51) and DF37NC-30DS-0.4V(51) are ROHS3 compliant, meeting or exceeding the RoHS compliance status of the original WH1S030WA1.

Q: What is the packaging format for the substitute parts?

A: Both Hirose substitutes are supplied in Tape & Reel (TR) format, suitable for automated assembly processes.

Q: How does the contact finish thickness affect performance?

A: The reduced gold plating thickness (2.00µin versus 4.00µin) in the Hirose substitutes remains within industry specifications for rectangular connectors and maintains equivalent contact reliability and corrosion resistance.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message