A-TB500-OP03 Terminal Block Header Equivalent & Substitute Parts

Part Overview

The A-TB500-OP03 is a 3-position terminal block header manufactured by Assmann WSW Components, designed for vertical through-hole mounting with 0.197" (5.00mm) pitch spacing. This component features male pins in an unshrouded configuration and is rated for 10 A at 300 V (UL). The part is currently active in production with 902 units in stock.

Equivalent and substitute parts are identified when design requirements, supply constraints, or manufacturing transitions necessitate alternative component sources while maintaining electrical and mechanical compatibility within the specified parameter ranges.

Key Parameters

Parameter	Value
Number of Positions	3
Pitch	0.197" (5.00mm)
Header Orientation	Vertical
Type	Header, Male Pins, Unshrouded
Termination Style	Solder
Mounting Type	Through Hole
Current Rating (UL)	10 A
Voltage Rating (UL)	300 V
Operating Temperature	-40°C ~ 115°C
Material Flammability Rating	UL94 V-0
Contact Tail Length	0.138" (4.60mm)
Insulation Height	0.079" (2.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the A-TB500-OP03 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Number of Positions: 3
Pitch: 0.197" (5.00mm)
Header Orientation: Vertical
Type: Header, Male Pins, Unshrouded
Termination Style: Solder
Mounting Type: Through Hole
Contact Tail Length: 0.138" (4.60mm)
Insulation Height: 0.079" (2.00mm)
Material Flammability Rating: UL94 V-0

Electrical Compatibility Parameters:

Voltage Rating (UL): 300 V minimum
Current Rating (UL): 10 A minimum

Compliance Parameters:

RoHS3 Compliant status required

The identified substitute parts (1933192 and 282832-3) meet all mandatory matching parameters and electrical requirements. Both parts maintain UL94 V-0 flammability rating and RoHS3 compliance status.

Parameter Comparison

Parameter	A-TB500-OP03 (Assmann)	1933192 (Phoenix Contact)	282832-3 (TE Connectivity)
Manufacturer	Assmann WSW Components	Phoenix Contact	TE Connectivity AMP Connectors
Series	-	COMBICON PST	Buchanan
Number of Positions	3	3	3
Pitch	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)
Header Orientation	Vertical	Vertical	Vertical
Type	Header, Male Pins, Unshrouded	Header, Male Pins, Unshrouded	Header, Male Pins, Unshrouded
Termination Style	Solder	Solder	Solder
Mounting Type	Through Hole	Through Hole	Through Hole
Current Rating (UL)	10 A	16 A	12 A
Voltage Rating (UL)	300 V	300 V	300 V
Operating Temperature	-40°C ~ 115°C	Not specified	-40°C ~ 110°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Contact Tail Length	0.138" (4.60mm)	0.138" (4.60mm)	0.138" (4.60mm)
Insulation Height	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

Both substitute parts maintain active production status and meet the electrical and mechanical requirements of the A-TB500-OP03.

1933192 (Phoenix Contact COMBICON PST): This part exceeds the current rating specification at 16 A and maintains 300 V voltage rating with ROHS3 compliance. Operating temperature range is not specified in available documentation.

282832-3 (TE Connectivity Buchanan): This part meets the current requirement at 12 A and maintains 300 V voltage rating. Operating temperature range is specified as -40°C ~ 110°C, which covers the lower end of the original part's range. RoHS compliance is confirmed. This part includes side stacking capability as an additional feature.

Both parts are suitable for direct substitution based on provided electrical, mechanical, and compliance parameters. Selection between alternatives should be based on availability, lead time, and specific application requirements within the stated operating conditions.

Frequently Asked Questions (FAQ)

Q: Can 1933192 or 282832-3 be used as direct replacements for A-TB500-OP03?

A: Yes. Both parts match all critical mechanical parameters (3 positions, 5.00mm pitch, vertical orientation, solder termination, through-hole mounting) and meet or exceed the electrical ratings (300 V, 10 A minimum). All three parts carry UL94 V-0 flammability rating and RoHS3 compliance.

Q: What are the key differences between the substitute parts?

A: The 1933192 (Phoenix Contact) is rated for 16 A at 300 V. The 282832-3 (TE Connectivity) is rated for 12 A at 300 V and specifies an operating temperature range of -40°C ~ 110°C. The 282832-3 includes side stacking capability. The original A-TB500-OP03 is rated for 10 A at 300 V with an operating range of -40°C ~ 115°C.

Q: Are there any compliance or certification differences?

A: All three parts carry UL94 V-0 flammability rating. The A-TB500-OP03 and 1933192 are ROHS3 Compliant. The 282832-3 is RoHS Compliant. All parts are EAR99 classified and share the same HTSUS code (8536.69.4040).

Q: Do the substitute parts have the same physical footprint?

A: Yes. All three parts share identical contact tail length (0.138" / 4.60mm) and insulation height (0.079" / 2.00mm), ensuring PCB footprint compatibility.

Q: What inventory levels are available?

A: A-TB500-OP03: 902 units. 1933192: 10,707 units. 282832-3: 7,172 units.

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