
ROQANG
Cross-vendor option with matching electricals (100uF, 63V) but in a larger, incompatible package.
Finding a substitute for the KNSCHA 189RV0029, a 100uF 63V 8x10.5mm capacitor, requires careful package verification. Several functional alternatives exist but may need PCB layout changes.
All candidates have a larger diameter (10mm vs 8mm) and will not fit the target's PCB land pattern.
Key electricals (capacitance, voltage) match or are improved on several candidates. Secondary parameters like ESR need verification.
No direct pin-compatible replacement has been identified. All reviewed candidates have a larger physical package and will not fit the same PCB footprint.
Search for a 100uF, 63V (or higher) capacitor in an 8x10.5mm SMD package. Candidates with larger packages are only suitable for new designs.
The primary risk is physical incompatibility. All candidates are larger than the target part, requiring board redesign.

ROQANG
Cross-vendor option with matching electricals (100uF, 63V) but in a larger, incompatible package.
| Feature / factor | 189RV0029 | RVT1J101M1010 | VZH101M1JTR-1010 | VZH101M1KTR-1010 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SMD, 8mm x 10.5mm | 10mm x 10.2mm | 10mm x 10mm | 10mm x 10mm | 10mm x 10.2mm / 10mm x 10mm — Candidate is physically larger and will not fit the same footprint.; VZH101M1JTR-1010: Candidate is physically larger and will not fit the same footprint.; VZH101M1KTR-1010: Candidate is physically larger and will not fit the same footprint. |
| Voltage | 63.0V | 63.0V | 63.0V | 80.0V | 63.0V / 80.0V — Voltage rating matches.; VZH101M1JTR-1010: Voltage rating matches.; VZH101M1KTR-1010: Higher voltage rating provides more design margin. |
| Capacitance | 100.0µF | 100.0µF | 100.0µF | 100.0µF | 100.0µF — Capacitance matches.; VZH101M1JTR-1010: Capacitance matches.; VZH101M1KTR-1010: Capacitance matches. |
| Manufacturer | KNSCHA | ROQANG | - | - | ROQANG — Cross-vendor alternative. |
| Esr | 500mΩ | - | 0.25 Ohm | Unknown | 0.25 Ohm / Unknown — ESR is lower than target's 500mΩ, which is generally acceptable.; VZH101M1KTR-1010: ESR must be verified against application requirements. |
The best alternative is a capacitor with 100uF capacitance, a 63V or higher voltage rating, and an identical 8x10.5mm SMD package. Parts like Lelon's VZH101M1JTR-1010 are electrically similar but physically larger.