Yageo KEMET T521D
T521D variants from Yageo KEMET
T521D Overview
What changes between part numbers, and what to check before you lock the BOM — Passive Components.
T521D is a Yageo order-code family — not a single orderable MPN. This page lists 11 variants that share the same core device but differ in suffix fields (package, grade, reel/tube, electrical bin, etc.). Pick the exact full part number; substituting within the family without checking the datasheet often causes assembly or spec mismatches.
10uF 50V Tantalum Capacitor, 90mR ESR, 2917 SMD Other listed variants describe: 100uF 16V 20% Tantalum Capacitor, 2917 SMD; 100uF 20V Tantalum Capacitor, Polarized, 105C.
Suffix examples in this family: 106M050ATE090, 107M016ATE050, 107M020ATE055, 107M025ATE040, 107M025ATE060, 157M016ATE040, 157M016ATE050, 157M020ATE050. The characters after the base number usually encode package, temperature, or performance grade — compare the variant table column-by-column rather than assuming pin-compatible drops-in.
Example MPNs: T521D106M050ATE090, T521D107M016ATE050, T521D107M020ATE055, T521D107M025ATE040, T521D107M025ATE060, T521D157M016ATE040.
Key Features
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
- 11 distinct suffix patternsExamples: 106M050ATE090, 107M016ATE050, 107M020ATE055, 107M025ATE040, 107M025ATE060 (+6 more). Decode suffix meaning in the ordering notes under the variant table.
Target Applications
- Passive Components — design-in and field replacement
- BOM scrub where only the base prefix is known but suffix is TBD
- Second-source checks when the original MPN is constrained
Ordering Variants
Compare 11 T521D part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|
| T521D106M050ATE090 | 10uF 50V Tantalum Capacitor, 90mR ESR, 2917 SMD | Yageo KEMET | Active | Compliant | In Stock | |
| T521D107M016ATE050 | 100uF 16V 20% Tantalum Capacitor, 2917 SMD | Yageo KEMET | Active | Compliant | In Stock | |
| T521D107M020ATE055 | 100uF 20V Tantalum Capacitor, Polarized, 105C | Yageo KEMET | Active | Compliant | In Stock | |
| T521D107M025ATE040 | 100uF 25V Tantalum Capacitor, Polymer, SMD | Yageo KEMET | Active | Compliant | In Stock | |
| T521D107M025ATE060 | 100µF 25V Tantalum Capacitor, POLARIZED, 105°C | Yageo KEMET | Active | Compliant | In Stock | |
| T521D157M016ATE040 | Tantalum Capacitor, Tantalum (solid Polymer), | Yageo KEMET | Active | Compliant | In Stock | |
| T521D157M016ATE050 | 150µF 16V Tantalum Capacitor, -55°C to 105°C, POLARIZED | Yageo KEMET | Active | Compliant | In Stock | |
| T521D157M020ATE050 | Tantalum Capacitor, Tantalum (solid Polymer), | Yageo KEMET | Active | Compliant | In Stock | |
| T521D226M035ATE060 | Tantalum Capacitor, Tantalum (solid Polymer), | Yageo KEMET | Active | Compliant | In Stock | |
| T521D226M050ATE090 | 22µF 50V Tantalum Capacitor, -55°C to 125°C | Yageo KEMET | Active | Compliant | In Stock | |
| T521D475M075ATE075 | Tantalum Capacitor, Tantalum (solid Polymer) | Yageo KEMET | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on T521D map to package, grade, and reel options.
T521D uses a shared prefix; characters after the prefix encode orderable options. Two lines with the same prefix are not drop-in replacements unless the differing columns match your need.
Suffixes seen here: 106M050ATE090, 107M016ATE050, 107M020ATE055, 107M025ATE040, 107M025ATE060, 157M016ATE040, 157M016ATE050, 157M020ATE050, 226M035ATE060, 226M050ATE090 (+1 more).
Full MPN examples: T521D106M050ATE090, T521D107M016ATE050, T521D107M020ATE055, T521D107M025ATE040, T521D107M025ATE060.
Tip: photograph or copy the reel label — reel diameter, QTY per reel, and moisture sensitivity level (MSL) are often suffix-driven and won't show in the schematic.
How to Choose the Right T521D Passive Components
Match the footprint first
Pull the exact package drawing for your MPN — base-number swaps fail most often at the footprint, not the schematic.
Electrical headroom
Compare voltage and current columns in the variant table. For T521D, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.
Temp grade letter matters
Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.
Copy the full MPN
Do not BOM only "T521D" — include the full suffix (e.g. 106M050ATE090, 107M016ATE050, 107M020ATE055). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for T521D product family
Identity
Variant Parameters
Source T521D with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 11 ordering variants from Yageo. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the T521D product family.