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Sparkler Piezoceramics :

This bulletin provides salient properties of six grades of Sparkler Piezoceramics, based on Lead Zirconate Titanate and Lead Titanate materials. Materials based on Lead Zirconate Titanate are designated as SP-4, SP-8, SP-5A, SP-5J and SP-5H corresponding to US DOD Navy Type I, Ill, II, V & VI respectively. The Lead Titanate based material is designated as SP-2.

High Power Ferro-Electrically Hard Materials:

These grades of materials can withstand high level of electrical excitation and mechanical stresses. These are admirably suited for high voltage or high power generators and transducers.

SP-4 (Type I):

SP-4 is well suited for all high powered transducers for ultrasonic cleaning and deep water hydrophones, liquid atomization and other high power acoustic radiation applications. It is a modified version of Lead Zirconate Titanate material capable of producing large mechanical drive amplitudes while maintaining low dielectric and mechanical losses.

SP-8 (Type Ill):

SP-8 is designed for high surface loading power transducers for plastic welding and material processing. It has an excellent mechanical quality factor, reasonably good coupling co-efficient and low dielectric loss factor which provides ultimate power handling capability.

High Power Ferro-Electrically Soft Materials:

These class of materials feature high piezoelectric sensitivity and permittivity. These find extensive use in a variety of sensors, pick ups, low-power motor type transducers, receivers and low power generators. Inherently, these grades are unsuited for high drive conditions and are susceptible to self heating beyond their operating temperature and are not recommended to be used for such applications.

SP-5A (Type /1):

This grade has high dielectric constant with high piezoelectric sensitivity. It is ideally suited for low power applications, pressure sensors, accelerometers, receivers, flow meters, NDT systems, medical equipments and host of other devices. This grade has excellent time stability and high electrical sensitivity at high temperatures.

SP-5J (Typo V):

This grade is especially suited for armament impact fuzes and naval hydrophones and other applications requiring combination of high energy and high voltage.


SP-5H (Type VI):

It is modified Lead Zirconate Titanate material having extremely high dielectric constant, high coupling co-efficient and high "d" constant. It has been used in a wide range of applications starting from fuzes, ink jet printers, actuators, translators, etc.

Lead Titanate Based Material:

SP-2 Grade:

It is a modified Lead Titanate piezoelectric composition designed to yield a high electromechanical to planar coupling factor ratio (100. Therefore, the ultrasonic waveform from SP-2 can be very clear and free of cross mode interferences. SP-2 provides a valuable material for NDT and medical use transducers, accelerometers, hydrophones, etc. 

Material Cross Reference Chart:

*US DOD MIL STD 1376 (SH)

For Detail See PDF: