
LittelfuseDatasheet (PDF)
SM8S18A
29.2V 240A 7kW@10/1000us 22.1V Unidirectional 18V SMTO-263 TVS Diodes RoHS
SMTO-263ROHS CompliantActive
- Manufacturer
- Littelfuse
- Manufacturer part #
- SM8S18A
- Store part #
- C41915201
- Package / case
- SMTO-263
- Category
- TVS Diodes
- Packaging
- Bag-packed
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement · policy
493 in stock
#C41915201
Stock & price checked 3 days ago
| Quantity | Unit price | Pack price |
|---|---|---|
| 1+ | ₹382.19 | ₹382.19 |
| 10+ | ₹320.75 | ₹3,207.50 |
| 30+ | ₹282.08 | ₹8,462.40 |
| 100+ | ₹242.77 | ₹24,277.00 |
| 500+ | ₹224.94 | ₹1,12,470.00 |
| 1,000+ | ₹217.20 | ₹2,17,200.00 |
1 × ₹382.19
₹382.19
excl. GST
₹450.98 incl. 18% GST
- Dispatch in 15-18 working days
- GST invoice with every order
- Standard pack: 500 per bag
SM8S18A
₹382.19 for 1 + GST
Specifications
- Clamping Voltage
- 29.2V
- Operating Temperature
- -55℃~+175℃
- Peak Pulse Current (Ipp)
- 240A
- Peak Pulse Power Dissipation (Ppp)
- 7kW@10/1000us
- Number of Channels
- 1
- Voltage - Breakdown
- 22.1V
- type
- TVS
- Polarity
- Unidirectional
- Reverse Leakage Current (Ir)
- 2uA
- Reverse Stand-Off Voltage (Vrwm)
- 18V
Packaging & compliance
- RoHS
- ROHS Compliant
- Lifecycle
- Active
- Packaging
- Bag-packed
- Standard pack
- 500 / Bag
- Sold per
- Piece
- Minimum order
- 1
- Unit weight
- 2.963 g
Overview
The SM8S series TVS diodes feature an SMTO-263 package with modified leads. They protect sensitive electronic equipment from voltage transient events caused by lightning strikes and inductive load switching.
Applications
- TVS components are ideal for protecting I/O interfaces, VCC buses, and other vulnerable circuits in telecommunications, computer, industrial, and consumer electronics applications.
Key features
- 7000W peak pulse power capability at 10/1000μs waveform, repetition rate (duty cycle) 0.01%
- SMTO-263 low-profile surface mount package, minimizing PCB footprint
- Typical failure mode is short circuit due to overvoltage or overcurrent
- Whisker testing per Table 4a and 4c of JEDEC JESD201A, passing Level 1 and Level 2
- IEC 61000-4-2 ESD 30kV (air), 30kV (contact)
- Glass passivated chip junction
- Low dynamic resistance
- VBR@TJ = VBR@25°C×(1 + αT×(T - 25)) (αT: temperature coefficient, typical value 0.1%)
- UL recognized compound, meeting V-0 flammability rating
- Halogen-free and RoHS compliant
- Lead-free E3 indicates second-level interconnect lead-free, terminal plating material is tin (Sn) (IPC/JEDEC J-STD-609A.01)
- Recognized by UL 497B as an isolated loop circuit protector
Alternatives
Similar parts — check the datasheet before substituting.
| Part | Manufacturer | Package | Stock | Price from (excl. GST) | Action | |
|---|---|---|---|---|---|---|
![]() | SM8S17A#C41714858Littelfuse · SMTO-263 | Littelfuse | SMTO-263 | 190 | ₹377.06 · 190 in stock | View |
![]() | SLD8S18A#C3705315Littelfuse · SMTO-263 | Littelfuse | SMTO-263 | On request | ₹426.56 · 0 in stock | View |
| SLD8S17A#C1973996Littelfuse · SMTO-263 | Littelfuse | SMTO-263 | On request | ₹94.50 · 0 in stock | View | |
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