PCB mounted overvoltage protectors for signal and data lines

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ESP PCB/06E, ESP PCB/15E, ESP PCB/30E & ESP PCB/50E

Suitable for "through hole" mounting directly onto the PCB of signal or data communications equipment which require a lower in-line resistance, an increased current or a higher bandwidth than the PCB/**D series.
Suitable for AC & DC power applications of up to 1.25A.
Available for working voltages of up to 6, 15, 30 and 50 volts.

For wire-in, twisted pair signalling applications needing a lower resistance, higher current or higher bandwidth, see the ESP **E series. For systems requiring a PCB mounted protector the lower cost ESP PCB/**D series may be suitable..

Application

Use where transient overvoltage protection needs to be integral to the OEM signal or data communications systems, and where these systems are resistance sensitive, or have a higher frequency or running current.

Features and benefits

Suitable for wave soldering.

Low let-through voltage between all lines.

Provides repeated protection in lightning intense environments.

Very low (1ohm) in-line resistance allows protection in resistance critical applications, eg alarm loops.

ESP PCB/**D

High (1.25A) maximum running current.

Higher bandwidth enables higher frequency (high traffic or bit rate) data communications.

Two pin clean end and three pin line end to ensure correct insertion.

Simple earthing via central pin on line side.

ABS housing.

Installation

Connect in series, soldering pins direct onto PCB. Tracks to line and earth pins should be as wide as practical.

Electrical specification

	ESP PCB/06E	ESP PCB/15E	ESP PCB/30E	ESP PCB/50E
Nominal voltage¹	6V	15V	30V	50V
Max working voltage²	7.79V	16.7V	36.7V	56.7V
Current rating (signal)	1.25A	1.25A	1.25A	1.25A
In-line resistance (per line ± 10%)	1.0ohms	1.0ohms	1.0ohms	1.0ohms
Bandwidth (-3dB 50 ohm system)	1.5MHz	10MHz	10MHz	10MHz

1 Nominal voltage (DC or AC peak) measured at <10µA (ESP PCB/15E, ESP PCB/30E, ESP PCB/50E) and <200µA (ESP PCB/06E).
2 Maximum working voltage (DC or AC peak) measured at <5mA leakage (ESP PCB/15E, ESP PCB/30E, ESP PCB/50E) and <10mA (ESP PCB/06E).

Transient specification

	ESP PCB/06E	ESP PCB/15E	ESP PCB/30E	ESP PCB/50E
Let-through voltage (all conductors)¹ 5kV, 10/700µs test to: BS 6651:1999 Appendix C, Cat C-High ITU (formerly CCITT) IX K17	10.8V	26.2V	44.3V	65.8V
Maximum surge current -per signal wire -per pair	10kA 20kA	10kA 20kA	10kA 20kA	10kA 20kA

1 The maximum transient voltage let-through the protector throughout the test (+/-10%), line to line & line to earth. Response time <10ns.
2 Tested with 8/20µs waveshape to ITU (formely CCITT), BS 6651:1999 Appendix C. PCB tracking and connectors external to the protector may limit its capability.

Mechanical specification

	ESP PCB/06E	ESP PCB/15E	ESP PCB/30E	ESP PCB/50E
Temperature range	-25°C to +70°C	-25°C to +70°C	-25°C to +70°C	-25°C to +70°C
Connection type	0.64mm (0.025"), square PCB pins, 1.2mm diameter PCB holes recommended
Dimensions

ESP PCB Brochure