RSS3W56RJTB Equivalent & Substitute Parts

Part Overview

The RSS3W56RJTB is a 56 Ohm, 3W through-hole axial resistor manufactured by TE Connectivity Passive Product. This metal oxide film resistor is designed for high-voltage applications and features flame-proof construction with pulse-withstanding capability. The component is currently in active production status with 683 pieces available in inventory.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across manufacturers. Alternative sources provide equivalent performance while accommodating different packaging formats and availability constraints.

Substiute Parts

RSS3W56RJTB

TE Connectivity Passive ProductIn Stock: 711RSS3W56RJTB Datasheet

Current PartRFQ

RSMF3JT56R0

Stackpole Electronics IncIn Stock: 2294RSMF3JT56R0 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RSS3W56RJTB is determined by the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 56 Ohms
• Tolerance: ±5%
• Power rating: 3W
• Composition: Metal Oxide Film

Mechanical Compatibility Requirements:

• Package type: Axial through-hole
• Number of terminations: 2
• Physical form factor: Axial configuration

Compliance Requirements:

• RoHS3 compliance status
• ECCN classification: EAR99
• HTSUS code: 8533.21.0090

The substitute part RSMF3JT56R0 meets all electrical and mechanical equivalence criteria. Both components share identical resistance, tolerance, power rating, and composition specifications. Both maintain axial through-hole configuration with two terminations and comply with ROHS3 standards.

Parameter Comparison

Engineering Selection Recommendations

Both the RSS3W56RJTB and RSMF3JT56R0 are active production components with ROHS3 compliance and EAR99 classification. Selection between these parts is based on application-specific requirements and availability constraints.

RSS3W56RJTB Selection Criteria:

• Preferred when TE Connectivity sourcing is specified
• Suitable for applications with operating temperature requirements up to 155°C
• Available in Tape & Box packaging format
• Tighter temperature coefficient specification (±300ppm/°C)

RSMF3JT56R0 Selection Criteria:

• Preferred when extended operating temperature range to 235°C is required
• Suitable for high-temperature applications
• Available in Cut Tape packaging format
• Lower temperature coefficient specification (±200ppm/°C)
• Higher inventory availability (2189 pieces)

Both components satisfy identical electrical specifications and mechanical form factors. Physical dimension variations (0.197" vs 0.217" diameter) are within typical axial resistor manufacturing tolerances and do not affect circuit board layout compatibility for standard through-hole applications.

Frequently Asked Questions (FAQ)

Q: Can RSMF3JT56R0 directly replace RSS3W56RJTB in existing designs?

A: Yes. Both components share identical electrical specifications (56 Ohms, ±5%, 3W) and mechanical configuration (axial through-hole, 2 terminations). Physical diameter difference (0.197" vs 0.217") is within standard tolerances for axial resistor applications and does not affect PCB hole compatibility.

Q: What is the primary difference between these two parts?

A: The primary differences are manufacturer source, operating temperature range, and temperature coefficient. RSMF3JT56R0 extends the upper operating temperature to 235°C compared to 155°C for RSS3W56RJTB, and features a lower temperature coefficient (±200ppm/°C vs ±300ppm/°C).

Q: Are both parts RoHS compliant?

A: Yes. Both RSS3W56RJTB and RSMF3JT56R0 are ROHS3 compliant and classified as EAR99 for export purposes.

Q: Does packaging format affect electrical performance?

A: No. Tape & Box (TB) and Cut Tape (CT) packaging formats are logistics and handling specifications only. They do not affect component electrical characteristics or performance.

Q: Which part should be selected for high-temperature applications?

A: RSMF3JT56R0 is suitable for applications requiring operation up to 235°C. RSS3W56RJTB is rated to 155°C maximum operating temperature.

Q: Are there any mechanical compatibility issues with the diameter difference?

A: No. The 0.02" diameter difference (5.00mm vs 5.50mm) is within standard axial resistor manufacturing tolerances and does not affect standard PCB through-hole spacing or component placement.