| Newark | 99M4203 | 100 | | 100 | 100 @ $8.77, 250 @ $8.60 |
 Galco | BK/HTB-42I-SP-BUSS | 100 | | 100 | 1 @ $7.96 |
 cbtcompany.com | BK/HTB-42I-SP | 1 | | 1 | |
| Waldom | EATON ELECTRONICS BK/HTB-42I-SP | 1 | | 1 | |
 Digi-Key | 5420174 | 1 | | 1 | 100 @ $8.87 |
| us.rs-online.com | 71929035 | 100 | | 100 | 100 @ $19.34, 200 @ $18.91, 500 @ $18.55 |
 Platt.com | 0955892 | 1 | | 1 | 1 @ $11.53 |
| Allied Electronics | 71929035 | 100 | | 100 | |
| Waldom | EATON BK/HTB-42I-SP | 1 | | 1 | 1 @ $6.12, 25 @ $5.84, 50 @ $5.71, 100 @ $5.52, 1000 @ $2.17, 5000 @ $1.98 |
| Hotenda | H4312810 | 1 | | 1 | |
 Onlinecomponents.com | HTB-42I-SP | 1 | 200 | 1 | 1 @ $4.94, 25 @ $4.69, 100 @ $4.46, 500 @ $2.39, 1000 @ $1.80, 5000 @ $1.62, 10000 @ $1.56 |
| Onlinecomponents.com | BK/HTB-42I-SP | 1 | | 1 | 1 @ $2.83, 2 @ $2.68, 26 @ $2.55, 101 @ $2.42, 501 @ $1.80, 1001 @ $1.62, 5001 @ $1.56 |
 Onlinecomponents.com | HTB42ISP | 1 | 200 | | 1 @ $2.83, 25 @ $2.68, 100 @ $2.55, 500 @ $2.42, 1000 @ $1.80, 5000 @ $1.62, 10000 @ $1.56 |
| Master Electronics | HTB42ISP | | 176 | | 1 @ $2.83, 25 @ $2.68, 100 @ $2.55, 500 @ $2.42, 1000 @ $1.80, 5000 @ $1.62, 10000 @ $1.56 |
| Sager Electronics | HTB-42I-SP | 100 | | | |
| Electro Sonic | HTB42ISP | 1 | 200 | | 1 @ $3.00, 25 @ $2.84, 100 @ $2.70, 500 @ $2.57, 1000 @ $1.91, 5000 @ $1.72, 10000 @ $1.65 |