Engineering Abbreviations
"A",
"B",
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z"
'Ha' to 'Hd', 'He' to 'Hz'
| He | - | helium |
| HE11 mode | - | the fundamental hybrid mode [of an optical fiber] |
| HEMP | - | high-altitude electromagnetic pulse |
| HEMT | - | High Electron Mobility Transistor |
| HERP | - | hazards of electro-magnetic radiation to personnel |
| HET | - | Hetetodyne |
| HF | - | high frequency |
| HFDF | - | high-frequency distribution frame |
| HHD | - | Hybrid Hard Disk [HHD Manufacturers] |
| HIC | - | Heterogeneous Interconnect |
| HIC | - | Humidity Indicator Card |
| HIPPI | - | High-Performance Parallel Interface |
| HL | - | HubLink [bus] |
| HLL | - | high-level language |
| HMI | - | Human Machine Interfaces |
| hp | - | horse power |
| HPA | - | High Power Amplifier [HPA Manufacturers] |
| HPC | - | high probability of completion |
| HPI | - | Host Port Interface |
| HPIB | - | Hewlett-Packard Interface Bus [IEEE488] |
| HPXO | - | High Precision Crystal Oscillator |
| HSDPA | - | High-Speed Downlink Packet Access |
| HSIC | - | High-Speed Inter-Chip [USB HSIC] |
| HSPA | - | High-Speed Packet Access |
| HSSI | - | High Speed Serial Interface, [HSSI Description] |
| HSSTP | - | High Speed Serial Trace Port Specification |
| HST | - | High Speed TTL [Logic] |
| HSTL | - | High Speed Transceiver Logic |
| HTL | - | High Threshold Logic |
| HTML | - | HyperText Markup Language |
| HUD | - | Head Up Display |
| HV | - | High Voltage |
| HVIC | - | High Voltage IC |
| HWCI | - | Hardware Configuration Item |
| Hz | - | hertz |
