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TWM3J2K0 Equivalent & Substitute Parts
Part Overview
The TWM3J2K0 is a 2 kOhms ±5% 3W through-hole resistor with radial leads, constructed from metal oxide film with flame-proof and safety features. This component is classified as obsolete, making identification of suitable substitutes essential for ongoing design support and procurement planning. The TWM series from Ohmite provides reliable performance across industrial and commercial applications requiring high-power dissipation in compact radial packages.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 2 kOhms |
| Tolerance | ±5% |
| Power Rating | 3W |
| Composition | Metal Oxide Film |
| Package Type | Radial |
| Operating Temperature Range | -55°C to 275°C |
| Temperature Coefficient | ±350ppm/°C |
| Physical Dimensions | 0.492" L x 0.354" W (12.50mm x 9.00mm) |
| Height (Seated) | 1.024" (26.00mm) |
Substitute Part Grouping Explanation
Substitution eligibility for the TWM3J2K0 is determined by strict equivalence across the following parameters:
- Resistance value: 2 kOhms
- Tolerance: ±5%
- Power rating: 3W
- Composition: Metal Oxide Film
- Package configuration: Radial with 2 terminations
- Operating temperature range: -55°C to 275°C minimum
- Temperature coefficient: ±350ppm/°C
- Physical dimensions: 0.492" L x 0.354" W, 1.024" seated height
The TWM3J2K0E meets all these criteria and is classified as a direct substitute. The primary distinction between the main part and its substitute relates to product status and compliance certifications rather than electrical or mechanical performance.
Parameter Comparison
| Parameter | TWM3J2K0 | TWM3J2K0E |
|---|---|---|
| Resistance | 2 kOhms | 2 kOhms |
| Tolerance | ±5% | ±5% |
| Power Rating | 3W | 3W |
| Composition | Metal Oxide Film | Metal Oxide Film |
| Features | Flame Proof, Safety | Flame Proof, Safety |
| Temperature Coefficient | ±350ppm/°C | ±350ppm/°C |
| Operating Temperature | -55°C to 275°C | -55°C to 275°C |
| Package / Case | Radial | Radial |
| Physical Dimensions | 0.492" L x 0.354" W (12.50mm x 9.00mm) | 0.492" L x 0.354" W (12.50mm x 9.00mm) |
| Height - Seated (Max) | 1.024" (26.00mm) | 1.024" (26.00mm) |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | Not Applicable | 1 (Unlimited) |
Engineering Selection Recommendations
The TWM3J2K0E is the direct equivalent for the obsolete TWM3J2K0. Both components share identical electrical specifications, mechanical dimensions, and thermal characteristics. The TWM3J2K0E is currently in active production status, ensuring long-term availability and supply chain continuity.
For applications requiring RoHS3 compliance, the TWM3J2K0E is the appropriate selection. The TWM3J2K0 is RoHS non-compliant and should be replaced in new designs or compliance-sensitive applications.
Both parts are suitable for identical circuit implementations without modification to PCB layouts, thermal management strategies, or electrical design parameters.
Frequently Asked Questions (FAQ)
Q: Can TWM3J2K0E be used as a direct replacement for TWM3J2K0?
A: Yes. The TWM3J2K0E is electrically and mechanically equivalent to the TWM3J2K0. All electrical parameters, physical dimensions, and thermal characteristics are identical. The primary difference is product status and RoHS compliance.
Q: What is the difference between TWM3J2K0 and TWM3J2K0E?
A: The TWM3J2K0 is obsolete, while the TWM3J2K0E is active production. The TWM3J2K0E is ROHS3 compliant, whereas the TWM3J2K0 is RoHS non-compliant. Electrical and mechanical specifications are identical.
Q: Are there any PCB layout considerations when substituting TWM3J2K0 with TWM3J2K0E?
A: No. Both components use identical radial package dimensions (0.492" L x 0.354" W, 1.024" seated height) and 2-termination configuration. No PCB modifications are required.
Q: What is the operating temperature range for these resistors?
A: Both the TWM3J2K0 and TWM3J2K0E operate from -55°C to 275°C with a temperature coefficient of ±350ppm/°C.
Q: Is moisture sensitivity a concern for these components?
A: The TWM3J2K0E has a Moisture Sensitivity Level (MSL) of 1, indicating unlimited moisture tolerance. The TWM3J2K0 is not applicable for MSL classification. Both components are suitable for standard storage and handling conditions.
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