Molex 0393550008 Terminal Block Header — Equivalent & Substitute Parts

Part Overview

The Molex 0393550008 is an 8-position terminal block header with male pins, shrouded on 4 sides, featuring a 0.138" (4.60mm) pitch and 90° right-angle orientation for through-hole mounting. This component is classified as obsolete, making substitute parts necessary for ongoing production and maintenance applications. Equivalent alternatives are available from active product lines within Molex and from manufacturers including Weidmüller and TE Connectivity, all maintaining the core electrical and mechanical specifications required for direct substitution.

Key Parameters

Parameter	Value
Number of Positions	8
Pitch	0.138" (4.60mm)
Header Orientation	90°, Right Angle
Type	Header, Male Pins, Shrouded (4 Side)
Termination Style	Solder
Mounting Type	Through Hole
Voltage - UL	300 V
Current - UL	10 A
Contact Mating Finish	Tin
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0393550008 is determined by strict adherence to the following parameters:

Position Count & Pitch: All substitutes maintain 8 positions at 0.138" (4.60mm) pitch
Shrouding Configuration: Primary substitutes maintain 4-side shrouding; one alternative (Weidmüller 1597270000) features 2-side shrouding and is listed as an alternative option
Orientation & Mounting: All substitutes are 90° right-angle through-hole components
Electrical Ratings: Substitutes must support minimum 300 V UL voltage and 8 A UL current or higher
Termination & Contact Finish: All substitutes use solder termination with tin-plated contacts
Compliance: All substitutes maintain RoHS3 compliance or equivalent

Substitutes are grouped into two categories: direct Molex alternatives and cross-manufacturer equivalents from Weidmüller and TE Connectivity. All listed parts meet the core functional requirements for direct substitution in applications designed for the 0393550008.

Parameter Comparison

Parameter	Molex 0393550008	Molex 0395021008	Weidmüller 1597270000	Weidmüller 1605130000	Weidmüller 1761602001	Weidmüller 1761604001	Weidmüller 1841690000	TE Connectivity 284512-8
Manufacturer	Molex	Molex	Weidmüller	Weidmüller	Weidmüller	Weidmüller	Weidmüller	TE Connectivity
Part Number	0393550008	0395021008	1597270000	1605130000	1761602001	1761604001	1841690000	284512-8
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
Number of Positions	8	8	8	8	8	8	8	8
Pitch	0.138" (4.60mm)	0.138" (4.60mm)	0.138" (4.60mm)	0.138" (4.60mm)	0.138" (4.60mm)	0.138" (4.60mm)	0.138" (4.60mm)	0.138" (4.60mm)
Header Orientation	90°, Right Angle	90°, Right Angle	90°, Right Angle	90°, Right Angle	90°, Right Angle	90°, Right Angle	90°, Right Angle	90°, Right Angle
Type	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (2 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)
Termination Style	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Voltage - UL	300 V	300 V	300 V	300 V	300 V	300 V	300 V	300 V
Current - UL	10 A	8 A	10 A	10 A	10 A	10 A	10 A	11 A
Operating Temperature	140°C	-40°C ~ 105°C	-50°C ~ 100°C	-50°C ~ 100°C	-50°C ~ 100°C	-50°C ~ 100°C	-50°C ~ 100°C	-40°C ~ 110°C
Contact Mating Finish	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin
Contact Material	Brass	Brass	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Phosphor Bronze
Housing Material	Polyamide (PA46), Nylon 4/6	Polyamide (PA66), Nylon 6/6	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Liquid Crystal Polymer (LCP), Glass Filled	Liquid Crystal Polymer (LCP), Glass Filled	Liquid Crystal Polymer (LCP), Glass Filled	Polyamide (PA66), Nylon 6/6
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not Applicable	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99

Engineering Selection Recommendations

Primary Substitute — Molex 0395021008: This part is the direct Molex equivalent within the active Eurostyle ESE 39502 series. It maintains identical pitch, position count, and shrouding configuration. The primary difference is reduced UL current rating (8 A versus 10 A on the original), which is acceptable for applications operating at or below 8 A. This part is ROHS3 compliant and carries active product status with substantial inventory availability.

Cross-Manufacturer Alternatives — Weidmüller Omnimate SL Series: The Weidmüller 1605130000 and 1761602001 provide full electrical and mechanical compatibility with 4-side shrouding. Both maintain 10 A UL current rating and 300 V UL voltage. The 1605130000 uses PBT housing, while the 1761602001 and 1841690000 employ glass-filled LCP housing for enhanced thermal and mechanical performance. All three are RoHS compliant and active products. The 1761604001 is the tape-and-reel packaged variant of the 1761602001, suitable for automated assembly environments.

Alternative Configuration — Weidmüller 1597270000: This part features 2-side shrouding instead of 4-side, reducing EMI shielding. It maintains electrical ratings (10 A UL, 300 V UL) and is suitable only where the reduced shrouding configuration is acceptable for the application.

Cross-Manufacturer Alternative — TE Connectivity 284512-8: This Buchanan series part provides full compatibility with 11 A UL current rating and operates across -40°C to 110°C. It is ROHS3 compliant and uses phosphor bronze contacts with PA66 housing.

Selection should prioritize parts with active product status and compliance certifications matching the application requirements. For applications requiring maximum current capacity, TE Connectivity 284512-8 (11 A) or Weidmüller alternatives (10 A) are preferred over Molex 0395021008 (8 A).

Frequently Asked Questions (FAQ)

Q: Can Molex 0395021008 directly replace the obsolete 0393550008?

A: Yes, with one consideration. The 0395021008 maintains identical pitch (4.60mm), position count (8), orientation (90°), and shrouding (4-side). The UL current rating is reduced from 10 A to 8 A. Direct substitution is valid for applications operating at 8 A or below.

Q: What is the key difference between Weidmüller 1605130000 and 1761602001?

A: Both maintain 8 positions, 4.60mm pitch, 90° orientation, and 4-side shrouding. The primary difference is housing material: 1605130000 uses PBT, while 1761602001 uses glass-filled LCP. The LCP variant offers superior thermal stability and mechanical strength. Contact tail length also differs (0.126" versus 0.059"), which may affect PCB layout compatibility.

Q: Is the Weidmüller 1597270000 a suitable substitute?

A: The 1597270000 is functionally compatible for electrical and mechanical connection but features 2-side shrouding instead of 4-side. This reduces EMI shielding effectiveness. Use only if the application does not require full 4-side shrouding protection.

Q: What packaging options are available for Weidmüller alternatives?

A: Weidmüller 1761602001 is supplied in bulk packaging, while 1761604001 is the identical part in tape-and-reel (TR) format. Tape-and-reel packaging is standard for automated assembly lines. Other Weidmüller parts are supplied in bulk.

Q: Are all substitutes RoHS compliant?

A: Yes. The original Molex 0393550008 is ROHS3 compliant. All listed substitutes are either ROHS3 compliant or RoHS compliant, meeting regulatory requirements for lead-free manufacturing.

Q: Which substitute offers the highest current rating?

A: TE Connectivity 284512-8 provides the highest UL current rating at 11 A, compared to 10 A for most Weidmüller alternatives and 8 A for Molex 0395021008.

Q: Can I use these substitutes interchangeably in the same PCB design?

A: Substitutes with identical contact tail length and insulation height are directly interchangeable. Verify contact tail length (ranging from 0.059" to 0.140") and insulation height (ranging from 6.86" to 7.57") against your PCB design specifications before substitution.

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