TWW5J27R Equivalent & Substitute Parts

Part Overview

The TWW5J27R is a 27 Ohm, 5W wirewound through-hole resistor manufactured by Ohmite, designed for applications requiring flame-proof and safety-rated components. This radial resistor operates across a wide temperature range from -55°C to 275°C and is suitable for high-reliability circuit designs. The TWW5J27R is currently classified as obsolete, making identification of compatible substitute parts essential for ongoing production support and design continuity.

Substiute Parts

TWW5J27R

OhmiteIn Stock: 1022TWW5J27R Datasheet

Current PartRFQ

TWW5J27RE

OhmiteIn Stock: 3359TWW5J27RE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TWW5J27R is determined by strict equivalence across the following critical parameters:

• Resistance value: 27 Ohms
• Tolerance: ±5%
• Power rating: 5W
• Composition: Wirewound
• Package configuration: Radial
• Features: Flame Proof, Safety
• Temperature coefficient: ±350ppm/°C
• Operating temperature range: -55°C to 275°C
• Physical dimensions: 0.492" L x 0.354" W (12.50mm x 9.00mm)
• Height - Seated (Max): 1.024" (26.00mm)
• Number of terminations: 2

The TWW5J27RE meets all substitution criteria as a direct equivalent, maintaining identical electrical specifications and mechanical form factor while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The TWW5J27RE is the direct substitute for the obsolete TWW5J27R. Both components are manufactured by Ohmite and maintain identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status and regulatory compliance: the TWW5J27R is obsolete, while the TWW5J27RE is active and ROHS3 compliant. For new designs and ongoing production requiring this 27 Ohm, 5W wirewound radial resistor with flame-proof and safety features, the TWW5J27RE is the appropriate selection. Both components share identical REACH and ECCN classifications, ensuring consistent supply chain and export compliance.

Frequently Asked Questions (FAQ)

Q: Can TWW5J27RE be used as a direct replacement for TWW5J27R in existing designs?

A: Yes. The TWW5J27RE is electrically and mechanically identical to the TWW5J27R. Both components have the same resistance value (27 Ohms), tolerance (±5%), power rating (5W), temperature coefficient (±350ppm/°C), operating temperature range (-55°C to 275°C), and radial package dimensions (0.492" L x 0.354" W, 1.024" max height). Pin-for-pin and form-factor compatibility is confirmed.

Q: What is the primary reason to transition from TWW5J27R to TWW5J27RE?

A: The TWW5J27R is classified as obsolete, limiting future availability. The TWW5J27RE is an active product from the same manufacturer with identical specifications and improved regulatory compliance (ROHS3 compliant versus RoHS non-compliant). Transitioning to the TWW5J27RE ensures long-term supply continuity and compliance with current environmental regulations.

Q: Are there any differences in packaging between these two parts?

A: The TWW5J27R is supplied in standard packaging, while the TWW5J27RE is supplied in bulk packaging. Both components are identical in form factor and electrical characteristics. Packaging differences do not affect component performance or compatibility.

Q: Do both parts meet the same safety and flame-proof certifications?

A: Yes. Both the TWW5J27R and TWW5J27RE are specified with identical flame-proof and safety features. Both components operate across the same temperature range (-55°C to 275°C) and maintain the same temperature coefficient (±350ppm/°C), confirming equivalent performance in safety-critical applications.

Q: What is the impact of RoHS compliance differences?

A: The TWW5J27R is RoHS non-compliant, while the TWW5J27RE is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements mandating RoHS compliance, the TWW5J27RE is the required selection. Both components maintain identical REACH and ECCN classifications.