| Device | Long. Balance | Polarity Reversal | Tip Open Ground Start | Integ. Battery Switch | Package Type | Temp Range | MSRP ($/1K Units) |
| HC55120 | 53 dB | X | PLCC28 | 0 to 70 | $4.83 | ||
| HC55121 | 53 dB | X | X | PLCC28 | -40 to 85 | $5.55 | |
| HC55140 | 63 dB | X | X | X | PLCC28 | -40 to 85 | $6.64 |
| HC5515 | 53 dB | PLCC28 | 0 to 70 | $4.67 | |||
| HC55130 | 63 dB | X | PLCC28 | -40 to 85 | $6.03 | ||
| HC5503PRC | 58 dB | SOIC24 | 0 to 70 | $2.27 | |||
| HC55150 | 55 dB | X | X | PLCC28 | 0 to 70 | $7.85 | |
| HC5549 | 53 dB | X | X | X | PLCC28 | 0 to 70 | $3.79 |
| HC55142 | 63 dB | X | X | X | PLCC28 | -40 to 85 | $7.24 |
