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TAC475K050P06 Equivalent & Substitute Parts
Part Overview
The TAC475K050P06 is a 4.7 µF molded tantalum capacitor rated at 50 V with ±10% tolerance, manufactured by Cornell Dubilier Electronics (CDE) in axial through-hole configuration. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design support and procurement. The part operates across the temperature range of -55°C to 125°C and is suitable for general-purpose applications requiring axial-lead tantalum capacitors with the specified electrical characteristics.
Substiute Parts
Key Parameters
| Parameter | Value | Significance for Substitution |
|---|---|---|
| Capacitance | 4.7 µF | Must match exactly |
| Voltage Rating | 50 V | Must match or exceed |
| Tolerance | ±10% | Determines acceptable tolerance range |
| Type | Molded Tantalum | Defines component chemistry and construction |
| Mounting Type | Through Hole | Must match for PCB compatibility |
| Package / Case | Axial | Physical form factor requirement |
| Size / Dimension | 0.180" Dia x 0.420" L (4.57mm x 10.67mm) | Physical fit on PCB |
| Operating Temperature | -55°C ~ 125°C | Environmental operating range |
| RoHS Status | RoHS non-compliant | Regulatory compliance requirement |
Substitute Part Grouping Explanation
Substitute parts for the TAC475K050P06 are classified into three categories based on electrical and mechanical compatibility:
Direct Substitutes (Electrical & Mechanical Equivalents): Parts that match all critical parameters: 4.7 µF capacitance, 50 V rating, ±10% tolerance, axial through-hole configuration, and identical physical dimensions (0.180" Dia x 0.420" L). These parts are functionally interchangeable with the original component.
Upgrade Substitutes (Enhanced Tolerance): Parts that maintain all electrical and mechanical specifications but offer improved tolerance (±5% instead of ±10%). These provide tighter capacitance accuracy while preserving all other characteristics.
Similar Substitutes (Regulatory Compliance Variants): Parts that match all electrical and mechanical parameters but differ in RoHS compliance status or packaging format. These are suitable for applications requiring updated regulatory certifications.
The substitution logic is based strictly on the following parameters: capacitance value, voltage rating, tolerance, component type, mounting method, package style, physical dimensions, and operating temperature range.
Parameter Comparison
| Part Number | Manufacturer | Capacitance | Voltage | Tolerance | Type | Mounting | Package | Size (Dia x L) | Temp Range | Status | RoHS | ESR | Packaging Format |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TAC475K050P06 | Cornell Dubilier Electronics | 4.7 µF | 50 V | ±10% | Molded | Through Hole | Axial | 0.180" x 0.420" | -55°C ~ 125°C | Obsolete | Non-compliant | — | — |
| 173D475X9050X | Vishay Sprague | 4.7 µF | 50 V | ±10% | Molded | Through Hole | Axial | 0.180" x 0.420" | -55°C ~ 125°C | Active | Non-compliant | — | Tape & Box |
| 173D475X9050XW | Vishay Sprague | 4.7 µF | 50 V | ±10% | Molded | Through Hole | Axial | 0.180" x 0.420" | -55°C ~ 125°C | Active | Non-compliant | — | Tape & Reel |
| T322D475K050AS | KEMET | 4.7 µF | 50 V | ±10% | Molded | Through Hole | Axial | 0.180" x 0.420" | -55°C ~ 125°C | Active | Non-compliant | 2.5 Ohm | Bulk |
| 173D475X5050XW | Vishay Sprague | 4.7 µF | 50 V | ±5% | Molded | Through Hole | Axial | 0.180" x 0.420" | -55°C ~ 125°C | Active | Non-compliant | — | Tape & Reel |
| 173D475X9050XE3 | Vishay Sprague | 4.7 µF | 50 V | ±10% | Molded | Through Hole | Axial | 0.180" x 0.420" | -55°C ~ 125°C | Active | ROHS3 Compliant | — | Tape & Box |
| T322D475K050AT | KEMET | 4.7 µF | 50 V | ±10% | Molded | Through Hole | Axial | 0.180" x 0.420" | -55°C ~ 125°C | Active | ROHS3 Compliant | 2.5 Ohm | Bulk |
Engineering Selection Recommendations
For Direct Replacement (Electrical & Mechanical Equivalence):
The Vishay Sprague 173D475X9050X and 173D475X9050XW are direct electrical and mechanical equivalents to the TAC475K050P06. Both parts maintain identical capacitance (4.7 µF), voltage rating (50 V), tolerance (±10%), physical dimensions (0.180" Dia x 0.420" L), and operating temperature range (-55°C ~ 125°C). The primary difference is packaging format: 173D475X9050X is supplied in Tape & Box format, while 173D475X9050XW is supplied in Tape & Reel format. Both are active products from an established manufacturer.
The KEMET T322D475K050AS provides equivalent electrical and mechanical specifications with the addition of specified ESR (2.5 Ohm), supplied in bulk packaging. This part is suitable for applications where ESR specification is required.
For Enhanced Tolerance Applications:
The Vishay Sprague 173D475X5050XW offers improved tolerance (±5% versus ±10%) while maintaining all other electrical and mechanical parameters. This upgrade is applicable to designs requiring tighter capacitance accuracy within the same physical footprint and voltage rating.
For Regulatory Compliance Requirements:
The Vishay Sprague 173D475X9050XE3 and KEMET T322D475K050AT are ROHS3 compliant alternatives. These parts maintain all electrical and mechanical specifications of the original component while meeting updated regulatory requirements. The 173D475X9050XE3 is supplied in Tape & Box format, while the T322D475K050AT is supplied in bulk format with specified ESR (2.5 Ohm).
Selection Criteria:
- Packaging preference: Choose Tape & Reel for automated assembly, Tape & Box for mixed-volume procurement, or Bulk for high-volume applications.
- ESR specification: Select KEMET parts (T322D475K050AS or T322D475K050AT) if ESR value must be specified.
- Regulatory compliance: Select ROHS3 compliant variants (173D475X9050XE3 or T322D475K050AT) for applications requiring updated environmental standards.
- Tolerance requirement: Select 173D475X5050XW for ±5% tolerance applications.
All substitute parts are active products with confirmed inventory availability.
Frequently Asked Questions (FAQ)
Q: Can the TAC475K050P06 be directly replaced with the Vishay Sprague 173D475X9050X?
A: Yes. The 173D475X9050X is a direct electrical and mechanical equivalent. Both parts have identical capacitance (4.7 µF), voltage rating (50 V), tolerance (±10%), physical dimensions (0.180" Dia x 0.420" L), and operating temperature range (-55°C ~ 125°C). The primary difference is packaging format (Tape & Box versus original format).
Q: What is the difference between 173D475X9050XW and 173D475X9050X?
A: Both parts are electrically and mechanically identical. The difference is in packaging format: 173D475X9050XW is supplied in Tape & Reel format suitable for automated assembly, while 173D475X9050X is supplied in Tape & Box format. Selection depends on procurement and assembly requirements.
Q: Is the 173D475X5050XW a suitable substitute?
A: The 173D475X5050XW is suitable if your application can accept improved tolerance. This part offers ±5% tolerance instead of ±10%, providing tighter capacitance accuracy. All other electrical and mechanical specifications remain identical. This is an upgrade substitute, not a direct replacement.
Q: What is the advantage of KEMET T322D475K050AS over Vishay alternatives?
A: The KEMET T322D475K050AS provides specified ESR (2.5 Ohm), which is beneficial for applications where ESR performance must be documented. Electrically and mechanically, it is equivalent to Vishay parts. It is supplied in bulk packaging format.
Q: Should I use the ROHS3 compliant variants?
A: Use ROHS3 compliant variants (173D475X9050XE3 or T322D475K050AT) if your application or end-market requires updated environmental compliance certification. These parts maintain all electrical and mechanical specifications while meeting ROHS3 standards.
Q: Are all substitute parts currently available?
A: Yes. All listed substitute parts are active products with confirmed inventory availability. The original TAC475K050P06 is classified as obsolete.
Q: Can I mix different substitute parts in the same design?
A: Yes, provided all parts meet your electrical requirements (4.7 µF, 50 V, tolerance specification). However, for consistency in procurement and assembly, it is recommended to standardize on a single substitute part number per design.
Q: What does "General Purpose" feature designation mean?
A: General Purpose indicates the component is suitable for standard circuit applications without specialized performance requirements such as low-ESR, high-reliability, or military-grade specifications.
Q: Are there any temperature or environmental restrictions for these substitute parts?
A: All substitute parts operate across the identical temperature range (-55°C ~ 125°C) as the original TAC475K050P06. No additional environmental restrictions apply beyond standard tantalum capacitor handling requirements.
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