General Description
The MAX202E–MAX213E, MAX232E/MAX241E line drivers/receivers are designed for RS-232 and V.28 communications in harsh environments. Each transmitter output and receiver input is protected against ±15kV electrostatic discharge (ESD) shocks, without latchup. The various combinations of features are outlined in the Selector Guide. The drivers and receivers for all ten devices meet all EIA/TIA-232E and CCITT V.28 specifications at data rates up to 120kbps, when loaded in accordance with the EIA/TIA-232E specification.
The MAX211E/MAX213E/MAX241E are available in 28-pin SO packages, as well as a 28-pin SSOP that uses 60% less board space. The MAX202E/MAX232E come in 16-pin TSSOP, narrow SO, wide SO, and DIP packages. The MAX203E comes in a 20-pin DIP/SO package, and needs no external charge-pump capacitors. The MAX205E comes in a 24-pin wide DIP package, and also eliminates external charge-pump capacitors. The MAX206E/MAX207E/MAX208E come in 24-pin SO, SSOP, and narrow DIP packages. The MAX232E/MAX241E operate with four 1μF capacitors, while the MAX202E/MAX206E/MAX207E/MAX208E/ MAX211E/MAX213E operate with four 0.1μF capacitors, further reducing cost and board space.

Next-Generation Device Features
*For Low-Voltage Applications
MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E: ±15kV ESD-Protected Down to 10nA, +3.0V to +5.5V, Up to 1Mbps, True RS-232 Transceivers (MAX3246E Available in a UCSP™ Package)
*For Low-Power Applications
MAX3221/MAX3223/MAX3243: 1μA Supply Current, True +3V to +5.5V RS-232 Transceivers with Auto-Shutdown™
*For Space-Constrained Applications
MAX3233E/MAX3235E: ±15kV ESD-Protected, 1μA, 250kbps, +3.0V/+5.5V, Dual RS-232 Transceivers with Internal Capacitors
*For Low-Voltage or Data Cable Applications
MAX3380E/MAX3381E: +2.35V to +5.5V, 1μA, 2Tx/2Rx RS-232 Transceivers with ±15kV ESDProtected I/O and Logic Pins

*Notebook, Subnotebook, and Palmtop Computers
*Battery-Powered Equipment
*Hand-Held Equipment


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The Littelfuse Industrial TMOV34S series thermally protected varistor represents a new development in circuit protection. It consists of a 34mm square format varistor element ( MOV) with an integral thermally activated element designed to open in the event of overheating due to abnormal over-voltage, limited current conditions as outlined in UL1449 Feb. 1998 edition.The device has a third lead, an indicator lead, which may be used to indicate that the MOV has been disconnected from the circuit. This lead facilitates connection to monitoring circuitry. The TMOV34S devices offer quick thermal response due to the close proximity of the integrated thermal element to the MOV body. The integrated configuration also offers lower inductance than most discreet solutions resulting in improved clamping performance to fast over-voltage transients.

*US Patent for Thermally Protected MOV- Patent # 6636403
*Designed to facilitate compliance to UL1449 for TVSS product.
*Hi Peak Current Rating to 40 kA.
*-55 Deg C to +85 Deg C operating temp.
*Agency Recognition : UL
*Alternative Design available with narrow 3mm wide monitor (right) lead.

*TVSS Products
*AC Panel Protection Modules
*AC Line Power Supplies
*AC Power Meters
*UPS (Uninterruptable Power Supply)
*AC/DC Power Supplies
*DIN Rail

TMOV34S111M, TMOV34S131M, TMOV34S141M, TMOV34S151M

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The SP3070-3078E differential line transceivers are suitable for bidirectional communication
on balanced multipoint bus transmission lines and comply with both RS485 and RS422 EIA
Standards. Each device consists of a differential driver and differential receiver. All devices
operate from a 3.3V power supply.
High receiver input impedance allows a large number of transceivers to share a common data
bus while maintaining signal margin and without excessive loading or use of expensive
repeaters. The high impedance driver output is maintained over the entire common-mode
voltage range from -7 to +12V. Receivers will failsafe to logic 1 output when inputs are open,
shorted or terminated. Drivers include built-in short-circuit protection and a thermal-overload
shutdown to protect against excessive power dissipation from bus contention or cable faults.
All RS485 inputs are ESD protected up to ±15kV (Air-Gap and Human Body Model) and up
to ±8kV Contact discharge (IEC 1000-4-2).


*±15kV ESD protection for RS485 pins
*3.3V low-power operation
*Advanced receiver-failsafe protection for open, shorted or terminated lines
*Up to 256 Transceivers may share bus
*Very low load for 8x greater fanout
*Hot Swap glitch protection RE and DE
*Thermal shutdown protects against driver contention
*Available in three industry standard footprints
*SP3070E, SP3073E and SP3076E in Full-Duplex (14 pin)
*SP3071E, SP3074E and SP3077E in Full-Duplex (8 pin)
*SP3072E, SP3075E and SP3078E in Half-Duplex (8 pin)
*Three applications-optimized speed grades
*SP3070-72E: 250kbps fully slew-limited
*SP3073-75E: 500kbps slew-limited
*SP3076-78E: 16Mbps high speed
*Small form factor SO-narrow packages
*Industrial (-40 to +85ºC) and Extended (-40 to +125ºC) temperature grades

*Industrial Control, Utility Meters Building Automation, Instrumentation, Point of Sale

SP3070EEN, SP3070EEN/TR, SP3070EMN

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* AC static switching in appliance & industrial control systems
* Washing machine with bi-rotational induction motor drive
* Induction motor drive for:
- refrigerator / freezer compressor
- air conditioning compressor

* VDRM / VRRM = +/- 800V
* Avalanche controlled device
* IT(RMS) = 8A with TCASE = 90 °C
* High noise immunity: static dV/dt > 750 V/μs
* Gate triggering current : IGT < 30 mA
* Snubberless turn off commutation: (dI/dt)c > 4.5A/ms
* TO-220FPAB package

* Enables equipment to meet EN61000-4-5 standard
* High off-state reliability with planar technology
* Need no external overvoltage protection
* Reduces the power component count

The ACST8-8C belongs to the AC power switch family built around the ASD technology. This high performance device is adapted to home appliances or industrial systems and drives an induction motor up to 8A.
This ACST switch embeds a triac structure with a high voltage clamping device to absorb the inductive turn off energy and withstand line transients such as those described in the IEC61000-4-5 standards.


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* Low On Resistance (300 V typ)
* Fast Switching Times
 - tON 250 ns max
 - tOFF 250 ns max
* Low Power Dissipation (3.3 mW max)
* Fault and Overvoltage Protection (–40 V to +55 V)
* All Switches OFF with Power Supply OFF
* Analog Output of ON Channel Clamped Within Power Supplies If an Overvoltage Occurs
* Latch-Up Proof Construction
* Break Before Make Construction
* TTL and CMOS Compatible Inputs

Existing Multiplexer Applications (Both Fault-Protected and Nonfault-Protected)
New Designs Requiring Multiplexer Functions

The ADG508F, ADG509F and ADG528F are CMOS analog multiplexers, the ADG508F and ADG528F comprising eight single channels and the ADG509F comprising four differential channels. These multiplexers provide fault protection. Using a series n-channel, p-channel, n-channel MOSFET structure, both device and signal source protection is provided in the event of an overvoltage or power loss. The multiplexer can withstand continuous overvoltage inputs from –40 V to +55 V. During fault conditions, the multiplexer input (or output) appears as an open circuit and only a few nanoamperes of leakage current will flow. This protects not only the multiplexer and the circuitry driven by the multiplexer, but also protects the sensors or signal
sources that drive the multiplexer.

 The ADG508F and ADG528F switch one of eight inputs to a common output as determined by the 3-bit binary address lines A0, A1 and A2. The ADG509F switches one of four differential
inputs to a common differential output as determined by the 2-bit binary address lines A0 and A1. The ADG528F has on-chip address and control latches that facilitate microprocessor interfacing. An EN input on each device is used to enable or disable the device. When disabled, all channels are switched OFF.

1. Fault Protection.
 The ADG508F/ADG509F/ADG528F can withstand continuous voltage inputs from –40 V to +55 V. When a fault occurs due to the power supplies being turned off, all the channels are turned off and only a leakage current of a few nanoamperes flows.
2. ON channel turns off while fault exists.
3. Low RON.
4. Fast Switching Times.
5. Break-Before-Make Switching.
Switches are guaranteed break-before-make so that input
signals are protected against momentary shorting.
6. Trench Isolation Eliminates Latch-up.
A dielectric trench separates the p and n-channel MOSFETs thereby preventing latch-up.


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