S3B-ZR-SM3A-TF Equivalent & Substitute Parts

Part Overview

The S3B-ZR-SM3A-TF is a rectangular connector header manufactured by JST Sales America Inc., designed for surface mount, right-angle applications with 3 positions at 1.5mm pitch. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. Substitute parts must maintain electrical compatibility, mechanical fit, and performance characteristics within the specified operating parameters.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.059" (1.50mm)
Number of Positions	3
Number of Rows	1
Mounting Type	Surface Mount, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Current Rating	1A
Voltage Rating	50V
Operating Temperature	-25°C ~ 85°C
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution eligibility for the S3B-ZR-SM3A-TF is determined by the following critical parameters:

Pitch and Position Count: Mating pitch of 0.059" (1.50mm) with 3 positions in a single row
Connector Configuration: Header type with male pin contacts, shrouded 4-wall design
Mounting and Termination: Surface mount, right-angle orientation with solder termination
Electrical Ratings: Minimum 1A current capacity and 50V voltage rating
Environmental Compliance: UL94 V-0 flammability rating and operating temperature range

The substitute parts identified maintain these core electrical and mechanical parameters, ensuring functional interchangeability in board-to-cable/wire applications.

Parameter Comparison

Parameter	S3B-ZR-SM3A-TF (Main)	S3B-ZR-SM4A-TF (Direct)	292228-3 (Similar)
Manufacturer	JST Sales America Inc.	JST Sales America Inc.	TE Connectivity AMP Connectors
Product Status	Obsolete	Active	Active
Connector Type	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin
Pitch - Mating	0.059" (1.50mm)	0.059" (1.50mm)	0.059" (1.50mm)
Number of Positions	3	3	3
Number of Rows	1	1	1
Mounting Type	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder	Solder
Current Rating	1A	1A	Varies by Wire Gauge
Voltage Rating	50V	50V	50VAC
Operating Temperature	-25°C ~ 85°C	-25°C ~ 85°C	-30°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Insulation Height	0.146" (3.70mm)	0.146" (3.70mm)	0.193" (4.90mm)
Contact Shape	Circular	Circular	Square
Contact Finish - Mating	Tin-Lead	Tin	Tin
Insulation Material	Polyamide (PA46), Nylon 4/6, Glass Filled	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T, Glass Filled
Series	ZH	ZH	Mini CT
Packaging	-	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

S3B-ZR-SM4A-TF (Direct Substitute - JST)

This part represents the direct successor within the JST ZH series. It maintains identical electrical ratings, pitch, position count, and mounting configuration. The primary distinction is product status: S3B-ZR-SM4A-TF is active and ROHS3 compliant, whereas the main part is obsolete and RoHS non-compliant. The insulation height remains consistent at 0.146" (3.70mm), ensuring mechanical compatibility with existing PCB layouts. Contact finish transitions from Tin-Lead to Tin, aligning with modern manufacturing standards.

292228-3 (Similar Substitute - TE Connectivity)

This TE Connectivity Mini CT series connector provides functional equivalence with notable parameter variations. The connector maintains the critical 1.5mm pitch, 3-position, single-row, surface-mount right-angle configuration. Operating temperature range extends to -30°C ~ 105°C, providing broader environmental tolerance. Insulation height increases to 0.193" (4.90mm), requiring PCB layout verification. Contact shape transitions from circular to square, and current rating specification varies by wire gauge rather than fixed 1A. ROHS3 compliance and active product status support long-term availability.

Frequently Asked Questions (FAQ)

Q: Can S3B-ZR-SM4A-TF directly replace S3B-ZR-SM3A-TF without PCB modification?

A: Yes. Both parts share identical pitch (1.5mm), position count (3), insulation height (3.70mm), and mounting configuration (surface mount, right angle). No PCB layout changes are required.

Q: What are the implications of the contact finish change from Tin-Lead to Tin?

A: The transition from Tin-Lead to Tin reflects RoHS3 compliance requirements. Tin finish maintains equivalent electrical performance and solder joint reliability for the specified 1A current and 50V voltage ratings.

Q: Is 292228-3 suitable for applications requiring the exact -25°C ~ 85°C operating range?

A: Yes. The 292228-3 operating range of -30°C ~ 105°C encompasses the original -25°C ~ 85°C specification, providing extended environmental tolerance.

Q: What design consideration applies to the 292228-3 insulation height of 4.90mm versus the original 3.70mm?

A: The increased insulation height requires verification of available PCB clearance and mating connector positioning. Physical fit validation is necessary before implementation.

Q: Does the square contact shape of 292228-3 affect mating compatibility?

A: Contact shape differences may influence mating force and connector engagement characteristics. Compatibility with existing mating connectors must be confirmed through mechanical fit assessment.

Q: Are both substitute parts available in Tape & Reel packaging?

A: Yes. Both S3B-ZR-SM4A-TF and 292228-3 are supplied in Tape & Reel (TR) packaging, supporting automated assembly processes.

Q: What is the inventory status for these substitute parts?

A: S3B-ZR-SM4A-TF: 4108 Pcs New Original In Stock. 292228-3: 2313 Pcs New Original In Stock.

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