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PRSM2JT680R Equivalent & Substitute Parts
Part Overview
The PRSM2JT680R is a 680 Ohms ±5% 2W through-hole resistor manufactured by Stackpole Electronics Inc. This axial metal oxide film resistor features flame-proof and safety characteristics, designed for applications requiring reliable power dissipation in the 2-watt range. The part is currently active in production with full RoHS3 compliance and REACH unaffected status. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and component availability across manufacturing cycles.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 680 Ohms |
| Tolerance | ±5% |
| Power Rating | 2W |
| Composition | Metal Oxide Film |
| Package Type | Axial |
| Temperature Coefficient | ±200ppm/°C |
| Operating Temperature Range | -55°C to 235°C |
| Physical Dimensions | 0.177" Dia x 0.433" L (4.50mm x 11.00mm) |
| Terminations | 2 |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitute parts for the PRSM2JT680R are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:
Electrical Parameters: Resistance value (680 Ohms), tolerance (±5%), power rating (2W), and temperature coefficient (±200ppm/°C) must be identical.
Mechanical Parameters: Package type (Axial), physical dimensions (0.177" Dia x 0.433" L), and number of terminations (2) must match exactly.
Material Composition: Metal oxide film construction is required.
Compliance: RoHS3 compliance and REACH unaffected status must be maintained.
The RSMF2JT680R meets all substitution criteria as a parametric equivalent manufactured by the same supplier.
Parameter Comparison
| Parameter | PRSM2JT680R | RSMF2JT680R |
|---|---|---|
| Manufacturer | Stackpole Electronics Inc | Stackpole Electronics Inc |
| Resistance | 680 Ohms | 680 Ohms |
| Tolerance | ±5% | ±5% |
| Power Rating | 2W | 2W |
| Composition | Metal Oxide Film | Metal Oxide Film |
| Features | Flame Proof, Safety | Flame Proof, Safety |
| Temperature Coefficient | ±200ppm/°C | ±200ppm/°C |
| Operating Temperature | -55°C to 235°C | -55°C to 235°C |
| Package Type | Axial | Axial |
| Physical Dimensions | 0.177" Dia x 0.433" L (4.50mm x 11.00mm) | 0.177" Dia x 0.433" L (4.50mm x 11.00mm) |
| Terminations | 2 | 2 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected |
| Product Status | Active | Active |
Engineering Selection Recommendations
Both the PRSM2JT680R and RSMF2JT680R are active production parts from Stackpole Electronics Inc with identical electrical and mechanical specifications. Selection between these parts is based on supply availability and packaging requirements, as both are supplied in Tape & Reel (TR) format. Both parts maintain full RoHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications. Current inventory levels support component procurement without supply constraints.
Frequently Asked Questions (FAQ)
Q: Can RSMF2JT680R be used as a direct replacement for PRSM2JT680R?
A: Yes. The RSMF2JT680R is a parametric equivalent with identical resistance (680 Ohms), tolerance (±5%), power rating (2W), temperature coefficient (±200ppm/°C), physical dimensions (0.177" Dia x 0.433" L), and composition (metal oxide film). Both parts are manufactured by Stackpole Electronics Inc and maintain identical compliance certifications.
Q: Are there any differences in thermal performance between these parts?
A: No. Both parts share identical temperature coefficient (±200ppm/°C) and operating temperature range (-55°C to 235°C), ensuring equivalent thermal stability across the specified operating envelope.
Q: Do both parts meet the same regulatory requirements?
A: Yes. Both PRSM2JT680R and RSMF2JT680R are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic component manufacturing and use.
Q: Are the physical dimensions identical for PCB layout purposes?
A: Yes. Both parts have identical axial package dimensions of 0.177" Dia x 0.433" L (4.50mm x 11.00mm), allowing direct substitution in existing PCB designs without layout modifications.
Q: What is the basis for substitution between these parts?
A: Substitution is based on matching all critical electrical parameters (resistance, tolerance, power rating, temperature coefficient), mechanical parameters (package type, dimensions, terminations), material composition (metal oxide film), and compliance certifications (RoHS3, REACH status).
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