Black Box SP360A RS-232 In-Line Surge Protector

The Black Box SP360A In-Line Surge Protector safeguards RS-232 equipment from voltage spikes and surges. Designed for DB25 25-Wire connections, it provides solid protection for data communication lines, preventing damage to sensitive electronic components. Ideal for industrial, commercial, and office environments.

Model
Black Box SP360A
Calibration
Available on request
Price
$45
Status
In stock
RFQ ref
SP360A
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This unit

The Black Box SP360A In-Line Surge Protector is engineered to safeguard RS-232 communication interfaces from transient voltage surges and spikes. This protector works with DB25, 25-wire connections, ensuring comprehensive protection for all signal lines within the RS-232 standard. It employs avalanche diode technology to divert excess voltage, preventing damage to sensitive connected equipment. The device is suitable for use in industrial, commercial, and office environments where data integrity and equipment longevity are paramount.

Technical Specifications * Application: RS-232 Dataline Protection

  • Protection Technology: Avalanche Diode Technology
  • Connectors: * (1) DB25 Male * (1) DB25 Female
  • Pins Protected: All 25 pins
  • Clamping Voltage: 18 Volts DC (Standard)
  • Peak Pulse Current: 60 Amps
  • Response Time: <5 ns (or <10 ns)
  • Series Resistance: None
  • Maximum Shunt Capacitance: <30 pF (or 40 pF)
  • Input Voltage: 18 V DC
  • Ground Wire: Included

Physical and Environmental * RoHS Compliant: Yes

  • WEEE Compliant: Yes
  • TAA Compliant: Yes
  • Country of Origin: United States

Compatibility The Black Box SP360A is designed as a protective add-on for devices that utilize RS-232 communication and may be susceptible to surges, particularly those spanning longer cable runs. Compatible equipment includes: * Short-Haul Modems

  • Concentrators
  • A/B Switches
  • Multiplexers (Muxes)
  • Repeaters

Installation Notes * The surge protector should be installed in-line between the data cable and the equipment's I/O port.

  • For comprehensive protection, it is recommended to install a protector at both ends of the data cable.
  • Crucially, the connector shell must be attached to earth/chassis ground, typically through a grounded AC power receptacle, to ensure effective surge protection.
  • Note that some sources recommend using these protectors in pairs. Why Choose Aumictech for the Black Box SP360A In-Line Surge Protector, RS-232 (DB25 25-Wire)? At Aumictech, we specialize in supplying high-end industrial and networking equipment. Whether you need solid surge protection for critical RS-232 interfaces, reliable safeguarding against voltage spikes, or enhanced operational uptime for your communication lines, our team ensures the Black Box SP360A delivers maximum performance for your application.

Black Box SP360A — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the Black Box SP360A. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.

Standard Cal
$450
Pass/fail cert + NIST sticker
Cal with Data
$650
Full NIST cert with measured values

Black Box SP360A price

This Black Box SP360A is listed at $45. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

Black Box SP360A calibration cost

NIST-traceable calibration for the Black Box SP360A is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Turnaround is 1 to 3 business days after receipt. See full calibration details →