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The world trend of networking industry devices is pursuing high density, high speed port, high performance but low acoustic noise and require low power consumption for the concern on energy saving. To fulfill networking device providers’ demand on thermal solution, Delta is glad to introduce Delta T series family to the market. T series fan units are with high performance to cope with high impedance, low acoustic noise, and low power consumption.

The features of T series fan:

1. High performance to complete with 2 fans in series
2. Low noise with the bionic blade design
3. Advanced motor and blade design to achieve high efficiency and low power consumption.
4. Optional brake function design offers safety and air turbulence protection.
5. Hot swap circuit design to restrain the inrush current.

T – SERIES FAMILY: For Networking application, T series family including THA, THB, THD, TDA, TEA models are the optimal choice for your requirements


High Efficiency
Diagonal Fan
Axial blower
Networking - THA series powerfull THB THD bionics networking - TDA diagonal  fans networking -TEA axial blower fans



The newest generation THD series with talent design implement bionic blade then push up the fan meet higher performance, higher efficiency and low noise. The recommended model list can be referred and selected by different size. (Move mouse over images to view a larger size or click on images/PN to get more details)

Part number
(Download spec sheets)
Operating Voltage Range (VDC) Voltage (VDC) Current (A) Power (W) Speed (RPM) Noise (dB-A) Air Flow (CFM) Air Pressure(in H2O)
THD2048HT 200x200x70 36.0~75.0 48 VDC 8.00A 384.00W 7400RPM 78.0dB(A) 1026.80CFM (29.06 m3/min) 4.945inchH2O (125.61mmH2O)
THD0848ME 80x80x38 36.0~75.0 48 VDC 0.55A 26.40W 9500RPM 60.0dB(A) 128.00CFM (3.626 m3/min) 1.48inchH2O
THD1348HE 134x134x38 36.0~60.0 48 VDC 5.00A 240.00W 12500RPM 82.0dB(A) 490.00CFM (13.870 m3/min) 7.10inchH2O (180.34mmH2O)
THD1248HE 120x120x38 32~59 48 VDC 2.20A 105.82W 10900RPM 75.0dB(A) 287.00CFM (8.122 m3/min) 4.400nchH2O (111.764mmH2O)
THD0948HE-A 92x92x38 36.0~75.0 48 VDC 1.10A 52.80W 13500RPM 71.0dB(A) 182.41CFM (5.167 m3/min) 3.44inchH2O
TCA1748ATXHD 175x175x69 36.0~60.0 48 VDC 1.60A 76.80W 4000RPM 70.8dB(A) 428.00CFM (12.125 m3/min) 1.96inchH2O (49.78mmH2O)
THD1748HG 172x172x50.8 32.0~60.0 48 VDC 3.23A 155.10W 8000RPM 72.0dB(A) 563.5CFM (15.956 m3/min) 4.55inchH2O
Part number
(Download spec sheets)
Operating Voltage Range (VDC) Voltage (VDC) Current (A) Power (W) Speed (RPM) Noise (dB-A) Air Flow (CFM) Air Pressure(in H2O)

* THD1748HG will be available in Q2 2018
The performance data is subject to change without notice.


bionics blade design


The THD series boasts newly designed bionic blades inspired by nature’s most powerful winged predators. This fan series represents the most quiet, fast, powerful and efficient design Delta has to offer. Engineers managed to apply the posture and wing structures of an osprey in flight to design fan blades via parameterized and simulated processes. By simulating the curve of an osprey’s wing in flight, the new THD series fan reduces fan noise up to 6dB-A.



In order to reduce the risk of engineering personnel in the replacement of the fan and to avoid fan can’t turn on normally when caused by system air turbulence.

Application of multiple brake functions:

1. Power off brake: Fan tray will stop immediately when power off in hot-swap application
2. PWM 0% brake: Fan A brake with PWM duty input 0% to avoid reverse spinning by Fan B airflow in the cabinet 
3. Air turbulence protection: Anti-turbulence fan to avoid reverse spin in system
4. Dynamic brake: Active intelligent brake without input power


1. Application in anti-turbulence fan tray system to ensure fan could start spinning successfully
2. Safety for user operating and faster to maintain defective fan 

For Networking application, T series family including THATHBTHDTDATEA models are the optimal choice for your requirements.

Contact us at to get more information and the best thermal solution.

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