حفاظت مدار محدودکنندههای ولتاژ گذرا (تی وی اس) دیودهای تی وی اس
LITTELFUSE SM8S17A
| Manufacturer | Littelfuse |
|---|---|
| Mfr. Part Number | SM8S17A |
| Electland Part Code | 392974 |
| Electland Part Number | |
| Category | TVS Diodes |
| Description | 27.6V Clamp 253A Ipp Tvs Diode Surface Mount SMTO-263 |
| Datasheet | Download |
Product Attributes
| Category | Circuit Protection Transient Voltage Suppressors (TVS) TVS Diodes |
|---|---|
| type | TVS |
| Unidirectional Channels | 1 |
| Voltage - Reverse Standoff (Typ) | 17V |
| Voltage - Breakdown (Min) | 18.9V |
| Voltage - Clamping (Max) @ Ipp | 27.6V |
| Current - Peak Pulse (10/1000µs) | 253A |
| Power - Peak Pulse | 7000W (7kW) |
| Power Line Protection | Yes |
| Applications | General Purpose |
| Operating Temperature | -55℃~+175℃ |
| Mounting Type | Surface Mount |
| Package / Case | Nonstandard SMD |
| Supplier Device Package | SMTO-263 |
| Number of Channels | 1 |
| Reverse Leakage Current (Ir) | 2uA |
| Peak Pulse Current (Ipp) | 253A@10/1000us |
| Clamping Voltage | 27.6V |
| Peak Pulse Power Dissipation (Ppp) | 7kW@10/1000us |
| Voltage - Breakdown | 20.9V |
| Polarity | Unidirectional |
| Reverse Stand-Off Voltage (Vrwm) | 17V |
| Packaging | SMTO-263 |
| ReachStatus | REACH Unknown |
| RohsStatus | Unknown |
| MoistureSensitivityLevel | 1 (Unlimited) |
| ExportControlClassNumber | EAR99 |
| HtsusCode | 8541.10.0080 |
| Weight | 1.4715g |
Introduction
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.
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
Applications
TVS components are ideal for protecting I/O interfaces, VCC buses, and other vulnerable circuits in telecommunications, computer, industrial, and consumer electronics applications.
