B72214S0250K101 EPCOS Varistor (Other) In Stock
EPCOS B72214S0250K101 is a radial-leaded disk varistor rated at 25V RMS maximum with 7J energy absorption capacity, designed for transient overvoltage suppression in low-voltage circuits. Its through-hole disk package (15.5mm × 18.5mm) suits PCB protection applications. Available worldwide with fast shipping.
- Manufacturer
- EPCOS
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- B72214S0250K101 Datasheet PDF
- Category
- Varistor
- Price
- From $0.1220(MOQ 1)
- Temp Range
- -40.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 25V RMS maximum circuit voltage rating with 7J energy absorption capacity for robust transient suppression
- Radial-leaded through-hole disk package (15.5 mm × 18.5 mm) for easy PCB integration and strong mechanical anchoring
- Metal oxide varistor technology provides fast clamping response to protect sensitive downstream components from voltage spikes
- REACH compliant and RoHS-compatible (JESD-609 e3) for use in environmentally regulated product designs
Applications
The EPCOS B72214S0250K101 varistor is ideal for transient voltage suppression across power supply inputs, relay coil flyback damping, and AC/DC converter protection circuits operating at 25V RMS or below. Its 7J energy absorption makes it suitable for industrial control boards, household appliance power stages, and consumer electronics requiring reliable surge protection. The radial leaded through-hole format is compatible with automated insertion and wave soldering processes.
Specifications
| Reach Compliance Code | Compliant |
| Factory Lead Time | 8Weeks |
| YTEOL | 7.25 |
| Circuit RMS Voltage-Max | 25V |
| Energy Absorbing Capacity-Max | 7J |
| JESD-609 Code | e3 |
| Mounting Feature | THROUGH HOLE MOUNT |
| Package Height | 18.5mm |
| Package Length | 15.5mm |
| Package Shape | DISK PACKAGE |
| Package Style | Radial |
| Package Width | 4.2mm |
| Packing Method | BULK |
| Rated Power Dissipation (P) | 0.1W |
| Reference Standard | CQC; IEC; UL; VDE |
| Resistor Type | VARISTOR |
| Surface Mount | NO |
| Technology | METAL OXIDE |
| Terminal Finish | Tin (Sn) |
| Terminal Placement | RADIAL |
| Terminal Shape | WIRE |
| Working Voltage | 31V |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8533.40.40.00 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for B72214S0250K101:
Frequently Asked Questions
How much transient energy can the B72214S0250K101 safely absorb in a single surge event?
The EPCOS B72214S0250K101 can absorb up to 7J of energy in a single transient event, which is sufficient to clamp common line surges encountered in 25V RMS circuits such as industrial sensor power rails and relay control lines. This rating ensures the varistor survives typical EFT and surge pulses defined in IEC 61000-4-4 and IEC 61000-4-5 standards.
For a 24V DC power rail, is the B72214S0250K101 a suitable transient suppressor?
Yes, the B72214S0250K101 is a good fit for 24V DC bus protection because its 25V RMS maximum circuit voltage corresponds to approximately 35V peak — providing a clamping margin above the 24V nominal rail while still suppressing transient spikes before they damage downstream ICs or sensors. The 7J energy rating handles typical industrial transient levels effectively.
What PCB mounting method does the B72214S0250K101 use and what are the package dimensions?
The B72214S0250K101 uses a radial-leaded through-hole mount in a disk package measuring 15.5 mm in length and 18.5 mm in height. This form factor is compatible with standard automated through-hole insertion equipment and wave soldering, making it practical for moderate- to high-volume PCB assembly in industrial and appliance applications.
How does metal oxide varistor clamping speed benefit protection circuits using the B72214S0250K101?
Metal oxide varistors like the B72214S0250K101 respond to overvoltage transients in nanoseconds, far faster than fuses or circuit breakers, ensuring that voltage spikes are clamped before downstream components experience damaging overvoltage conditions. This sub-microsecond response time is critical for protecting microcontrollers, op-amps, and power MOSFETs on 25V or lower supply rails.
Related Guides
How to Choose a Digital Potentiometer: AD5204, AD5206, and AD8403 Selection Guide
Compare the AD5204, AD5206, and AD8403 multi-channel SPI digipots by channel count, resistance value, and package to choose the right Analog Devices digital potentiometer for your design.
Jun 21, 2026
AD7745 / AD7746 / AD7747 Capacitance-to-Digital Converter Design Guide
Complete application note for the AD774x CDC family: circuit design, shielding, conversion rate selection, and sourcing guidance for the AD7745, AD7746, and AD7747.
Jun 21, 2026
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 2026
Why Buy from FindMyChip
About EPCOS
EPCOS is a leading electronic component manufacturer. FindMyChip sources EPCOS ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.7500 | $0.75 |
| 25+ | $0.2250 | $5.63 |
| 100+ | $0.2040 | $20.40 |
| 250+ | $0.1748 | $43.70 |
| 500+ | $0.1708 | $85.40 |
| 1000+ | $0.1220 | $122.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”