35TQS47MEU - 47uF 35V POSCAP Tantalum Polymer | Panasonic
Référence : 35TQS47MEU ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $2.76 | $2,76 |
| 10 | $2.49 | $24,90 |
| 100 | $2.21 | $221,00 |
| 500 | $1.95 | $975,00 |
| 1 000 | $1.72 | $1 720,00 |
35TQS47MEU Présentation
Conductive polymer tantalum solid capacitors (POSCAP) are a subset of the tantalum capacitor family in which the conventional manganese dioxide cathode is replaced by a conductive polymer layer. This polymer cathode lowers equivalent series resistance (ESR), eliminates the risk of ignition failure mode common to MnO2 tantalum, and provides stable capacitance and dissipation factor across frequency and temperature. POSCAP therefore sits between multi-layer ceramic capacitors (MLCC) and aluminum polymer capacitors in the decoupling and bulk-hold-up hierarchy used on modern DC/DC converter outputs.
Key features of the 35TQS47MEU include 20% capacitance tolerance, a category temperature range of -55C to +105C, and full RoHS compliance with halogen-free construction. The device is lead-free reflow compatible per JEDEC J-STD-020 and ships in embossed carrier tape on 180 mm or 330 mm reels. The 2917 (7343) case provides a low-profile footprint suitable for point-of-load regulators, graphics card POL outputs, and server VRM hold-up capacitors where 35 V working voltage headroom is required.
The TQS series uses an internal polymer cathode that is burned in during the factory formation step, providing both low ESR and a benign failure mode (the part simply increases ESR rather than igniting under voltage stress). This makes the 35TQS47MEU well suited as a bulk output capacitor on 24 V industrial buses, 28 V automotive rails, and 12 V adapter-derived rails where traditional MnO2 tantalum would be marginal.
Typical applications for the 35TQS47MEU include point-of-load bulk decoupling on 24 V industrial systems, hold-up capacitance on 12 V and 19 V adapter rails, output smoothing for buck converters powering FPGAs and ASICs, audio amplifier power supply bypass, and SSD/HDD motor drive bulk filtering. The 35 V rating provides at least 30% derating headroom over a nominal 24 V input, extending operational life.
When designing with this POSCAP, observe the 35 V absolute maximum DC rating and provide 20-30% voltage derating for reliability. Place the capacitor as close as possible to the load or DC/DC output node to minimize parasitic inductance. The polymer cathode has a self-healing characteristic under voltage surge, but reversed polarity must still be avoided. This page synthesizes distributor pricing, drop-in alternatives, and design guidance not found in the manufacturer datasheet.
Alternatives de remplacement direct pour 35TQS47MEU — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
35TQC47M
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
35TQS47MEU-R
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
T521V476M035ATE100
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
T55V476M035C0100
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
T530D476M035ATE010
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
35TQS47MEU Valeurs maximales et caractéristiques électriques
| Manufacturer | Panasonic Industry |
| Series | TQS (POSCAP) |
| Capacitor Type | Molded Conductive Polymer Tantalum Solid (POSCAP) |
| Capacitance | 47 uF |
| Capacitance Tolerance | 20% |
| Rated Voltage (DC) | 35 V |
| Equivalent Series Resistance (ESR) | 100 mOhm at 100 kHz |
| Maximum Ripple Current | 1200 mA |
| Case Size | 2917 (7343 metric) |
| Package Dimensions | 7.3 mm x 4.3 mm x 2.8 mm |
| Type de montage | Surface Mount |
| Plage de température de fonctionnement | -55C to +105C |
| Dissipation Factor (tan delta) | 1.5x initial limit after endurance |
| RoHS Compliance | Compliant |
| Sans halogène | Yes |
| Lead-Free Reflow | Yes (JEDEC J-STD-020 compatible) |
| Packaging | Embossed carrier tape, 180 mm / 330 mm reel |
Configuration des broches de 35TQS47MEU
| Broche 1 | Anode (+) — Positive terminal (case marking +) |
| Broche 2 | Cathode (-) — Negative terminal (case marking stripe) |
Applications typiques
35TQS47MEU convient pour 7 applications: Point-of-Load Bulk Decoupling on 24V Industrial Rails, DC/DC Converter Output Filtering for FPGAs and ASICs, Automotive 12V/28V Rail Bulk Hold-Up, Audio Amplifier Power Supply Bypass, Server and Networking Equipment VRM Hold-Up, SSD and HDD Motor Drive Bulk Filtering, LED Lighting Driver Output Smoothing.
Point-of-Load Bulk Decoupling on 24V Industrial Rails
The 35TQS47MEU's 35 V rating provides 30% voltage derating headroom over a nominal 24 V industrial bus, extending operational life. Its 100 mOhm ESR at 100 kHz and 1200 mA ripple current make it ideal for bulk filtering on POL (point-of-load) DC/DC converter outputs powering industrial PLCs, motor drivers, and factory automation controllers. The polymer cathode's benign open-circuit failure mode is critical in 24 V systems where inductive kickback can briefly exceed 35 V - unlike MnO2 tantalum, the 35TQS47MEU simply increases ESR rather than igniting under transient overvoltage, improving field reliability in unattended industrial installations.
Recommandé
DC/DC Converter Output Filtering for FPGAs and ASICs
Modern FPGAs and ASICs demand sub-milliohm impedance at the power rail between 100 kHz and 10 MHz, and the 35TQS47MEU's 100 mOhm ESR at 100 kHz meets that requirement while providing 47 uF bulk capacitance. The 2917 (7343) case footprint fits beneath the BGA land area where height is constrained to under 3 mm, and the conductive polymer cathode eliminates the ignition failure mode that makes MnO2 tantalum capacitors risky near hot FPGA packages. Pairing the 35TQS47MEU with a small MLCC gives broadband decoupling from DC to 100 MHz for digital logic cores.
Recommandé
Automotive 12V/28V Rail Bulk Hold-Up
The 35TQS47MEU operates across -55C to +105C, covering the full automotive under-hood and cabin temperature range. With a 35 V working voltage, it tolerates load-dump transients up to 35 V on a 28 V heavy-truck bus, providing bulk hold-up for body-control modules, infotainment head units, and ADAS sensor power supplies. The polymer cathode's low ESR reduces I^2R losses during the high-ripple cold-crank recovery cycles typical of 12 V automotive cranking profiles, and the halogen-free RoHS-compliant construction meets automotive OEM material specifications.
Recommandé
Audio Amplifier Power Supply Bypass
Audio power amplifiers draw high transient currents at audio frequencies, and supply-rail ripple can couple directly into the audio band as audible hum. The 35TQS47MEU's 100 mOhm ESR at 100 kHz and stable capacitance versus frequency provide excellent power-supply rejection for class-D and class-AB amplifiers operating from a 24 V or 35 V rail. The 1200 mA ripple rating supports amplifiers delivering 50-100 W continuous output, while the molded 2917 case sits close to the amplifier supply pins for lowest parasitic inductance.
Recommandé
Server and Networking Equipment VRM Hold-Up
Server motherboards and networking switches require bulk capacitance on 12 V and 24 V intermediate bus rails feeding point-of-load VRMs for CPUs, ASICs, and switch fabrics. The 35TQS47MEU's 35 V rating supports 24 V intermediate bus architectures, and its 100 mOhm ESR reduces conduction losses under continuous high-current load. The polymer cathode provides stable capacitance over the -55C to +105C server inlet-to-exhaust temperature range, while the molded construction withstands the thermal cycling of high-density compute boards.
Recommandé
SSD and HDD Motor Drive Bulk Filtering
Storage devices require bulk capacitance on the 5 V and 12 V motor-drive rails to absorb spindle-motor back-EMF and to smooth the high-frequency switching of DC/DC converters powering the NAND flash. The 35TQS47MEU's low ESR handles the repetitive surge currents of HDD spindle start-stop cycles, while the 35 V rating tolerates inductive transients from the motor windings. The molded 2917 case fits standard 2.5-inch and 3.5-inch HDD PCB mechanical layouts, and the conductive polymer cathode provides years of maintenance-free operation at elevated temperature.
Recommandé
LED Lighting Driver Output Smoothing
High-brightness LED lighting drivers operate from 24 V or 48 V DC bus rails, and require bulk output capacitance to smooth the high-frequency PWM dimming current pulses. The 35TQS47MEU's 35 V rating covers 24 V architectural-lighting buses with margin, while its 1200 mA ripple current rating supports multi-amp LED strings. The polymer cathode provides decades of operational life under continuous LED-driver thermal stress, and the halogen-free RoHS-compliant construction meets commercial and residential lighting environmental directives.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour 35TQS47MEU — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 35TQC47M | T521V476M035ATE100 | T55V476M035C0100 | T530D476M035ATE010 |
|---|---|---|---|---|---|
| Package | 2917 (7343 metric) | 2917 (7343 metric) - same | 2917 (7343 metric) - same | 2917 (7343 metric) - same | 2917 (7343 metric) - same |
| Brand | Panasonic | Panasonic | KEMET | Vishay Intertechnology | KEMET |
| Capacitance | 47 uF | 47 uF | 47 uF | 47 uF | 47 uF |
| Rated Voltage (DC) | 35 V | 35 V | 35 V | 35 V | 35 V |
| ESR at 100 kHz | 100 mOhm | 45 mOhm (better) | 100 mOhm | 100 mOhm | 10 mOhm (better) |
| Capacitance Tolerance | 20% | 20% | 20% | 20% | 20% |
| Operating Temperature | -55C to +105C | -55C to +105C | -55C to +105C | -55C to +105C | -55C to +125C |
| RoHS Compliance | Yes (Halogen Free) | Yes (Halogen Free) | Yes | Yes | Yes |
Principaux différenciateurs
- Standard-grade POSCAP with proven polymer construction (vs 35TQC47M (TQC series))
- Better capacitance density vs competing polymer tantalum (vs T55V476M035C0100 (Vishay))
- Lower ESR option available in same case from same brand (vs T530D476M035ATE010 (KEMET T530))
Notes de conception
Do not reverse-polarize the 35TQS47MEU. Although the polymer cathode is more tolerant of voltage surge than mnO2 tantalum, reverse polarity still destroys the part. The cathode is marked with a stripe on the case top per the Panasonic POSCAP datasheet convention. Estimated: reversed voltage above 1 V sustained will cause permanent dielectric breakdown regardless of the polymer construction.
Place the 35TQS47MEU as close as possible to the load or DC/DC output node. Use a land pattern that matches the 2917 (7343) metric footprint per the Panasonic case-size code table - this is the same land pattern as KEMET 7343 and Vishay 7343 polymer tantalum capacitors. Keep the land pattern symmetrical to prevent mechanical stress on the solder joints during thermal cycling.
Apply 20-30% voltage derating for reliability: in a 24 V nominal industrial bus, the 35 V rated 35TQS47MEU provides the recommended derating. Estimated: at full 35 V applied continuously and 105C ambient, expected operational life per the Panasonic POSCAP endurance model is shorter than at 28 V applied at 85C - design to the lower voltage for maximum field life.
The 1200 mA ripple current rating at 100 kHz and 105C assumes 20C self-heating rise above ambient. Estimated: for every 10C reduction in ambient below 105C, the allowable ripple current increases roughly 5-8% linearly. Mount the part on a copper pad of at least 100 mm^2 to spread heat into the PCB and extend operational life at high ripple.
Informations de conformité
RoHS compliant and halogen free per Panasonic TQS series datasheet. Lead-free reflow compatible per JEDEC J-STD-020. AEC-Q100 not applicable to passive capacitors.
