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Pulse-Width Modulation - PWM

Pulse-Width Modulation - PWM

Pulse-Width Modulation - PWM

PWM (Pulse-width modulation) regulates the voltage signal between fully on and fully off, controlling the speed of a fan. The PWM function is commonly used in OEM cases. Delta also provides standard PWM through distribution channels. Delta's internal PWM signal control fans deliver a variety of advantages over external PWM controlled devices:

  • Wide PWM Frequency Range Input (30Hz- 30kHz)
  • Lower vibration at lower duty cycle
  • Prevent spike current on fan speed control
  • Better motor efficiency
  • Lower fan switching noise
Part number (Download spec sheets) Dimension (mm) 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)
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-AXHH 92x92x38 N/A 48 VDC 1.10A 52.80W 13500RPM 71.0dB(A) 182.41CFM (5.167 m3/min) 3.435nchH2O (87.24mmH2O)
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
THB2048HG-A N/A N/A 48 VDC 4.20A 201.60W 7700RPM 78.0dB(A) 690.30CFM (19.583 m3/min) 4.141inchH2O (105.18mmH2O)
THB2048CT N/A N/A 48 VDC 4.80A 230.40W 5800RPM 73.6dB(A) 827.37CFM (23.410 m3/min) 2.690inchH2O (68.50mmH2O)
THB1748BG N/A N/A 48 VDC 3.50A 168.0W 8000RPM 75.0dB(A) 607.07CFM (17.170 m3/min) 4.136inchH2O (105.5mmH2O)
THB1548DG-CXKQ N/A N/A 48 VDC 1.57A 75.36W 5800RPM 70.0dB(A) 410.51CFM (11.624 m3/min) 2.085inchH2O (52.97mmH2O)
THB1448AE N/A N/A 48 VDC 1.10A 52.80W 6100RPM 66.8dB(A) 325.90CFM (9.230 m3/min) 1.65nchH2O (41.85mmH2O)
THB1248CE N/A N/A 48 VDC 0.95A 45.60W 7800RPM 70.0dB(A) 262.00CFM (7.360 m3/min) 2.025inchH2O (51.44mmH2O)
THB1212B-AXHF N/A N/A 12 VDC 1.60A 19.20W 5300RPM 59.0dB(A) 184.20CFM (5.218 m3/min) 0.899inchH2O (22.83mmH2O)
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)
QFR1224GHEYPR N/A N/A 24 VDC 0.91A 21.84W 6000RPM 64.0dB(A) 195.68CFM (5.542 m3/min) 1.028inchH2O (26.105mmH2O)
QFR1212GHEXUM N/A N/A 12 VDC 1.80A 21.60W 6000RPM 64.0dB(A) 210.38CFM (5.957 m3/min) 1.170inchH2O (29.179mmH2O)
PFR1212UHE-SP00 PFR1212UHE-SP00 PFR1212UHE-SP00 120x120x38mm 8.0 - 13.2 VDC 12 VDC 2.70A 32.40W 6600RPM 65.5dB(A) 228.65CFM (6.475 m3/min) 1.206inchH2O (30.636mmH2O)
PFR1212DHE-SP00 N/A N/A 12 VDC 3.70A 44.40W 7400RPM 68.5dB(A) 254.34CFM (7.202 m3/min) 1.438inchH2O (36.513mmH2O)
PFM1412DEB7V 140x140x38 N/A 12 VDC 3.90A 46.80W 6500RPM 70.0dB(A) 282.31CFM (7.994 m3/min) 2.033inchH2O (51.65mmH2O)
PFC1248DE-F00 N/A N/A 48 VDC 1.00A 48.00W 5500RPM 66.5dB(A) 252.85CFM (7.160 m3/min) 1.412inchH2O (35.877mmH2O)
PFC1212DE-F00 N/A N/A 12 VDC 4.00A 48.00W 5500RPM 66.5dB(A) 252.85CFM (7.16 m3/min) 1.412inchH2O (35.877mmH2O)
PFB1248XHE-TP17 N/A N/A 48 VDC 1.60A 76.80W 7000RPM 72.5dB(A) 306.92CFM (8.691 m3/min) 2.175inchH2O (55.235mmH2O)
PFB1248UHE-EP 120x120x38 30.0~60.0 48 VDC 0.88A 42.24W 5300RPM 66.0dB(A) 243.66CFM (6.900 m3/min) 1.311inchH2O (33.315mmH2O)
PFB1248UHE-CN N/A N/A 48 VDC 1.10A 52.80W 5500RPM 66.5dB(A) 252.85CFM (7.16 m3/min) 1.412inchH2O (35.877mmH2O)
FFC1212D-F00 N/A N/A 12 VDC 1.45A 17.40W 4000RPM 56.4dB(A) 150.33CFM (4.257 m3/min) 0.489inchH2O (12.43mmH2O)
FFB03812VHN-9C3P N/A N/A 12 VDC 0.55A 6.60W 16000RPM 58.5dB(A) 20.23CFM (0.573 m3/min) 1.463inchH2O (37.15mmH2O)
FFB03612EHN-BGA N/A N/A 12 VDC 0.39A 4.68W 14500RPM 50.0dB(A) 16.30CFM (0.461 m3/min) 1.000inchH2O (25.40mmH2O)
EFC1748DG-TYSG 172x172x51 28.0~53.0 48 VDC 1.23A 59.04W 5500RPM 63.4dB(A) 415.66CFM (11.770 m3/min) 1.771inchH2O (44.99mmH2O)
EFC1748DG-TP07 N/A N/A 48 VDC 1.23A 59.04W 5500RPM 63.4dB(A) 415.66CFM (11.770 m3/min) 1.771inchH2O (44.99mmH2O)
EFB1548VHG-TP14 172x150x51 36.0~60.0 48 VDC 0.49A 23.52W 4000RPM 60.0dB(A) 302.29CFM (8.560 m3/min) 0.937nchH2O (23.80mmH2O)
BFB1012HH-TP48 N/A N/A 12 VDC 0.69A 8.28W 3200RPM 53.5dB(A) 28.33CFM (0.802 m3/min) 0.947nchH2O (24.05mmH2O)
BFB0512HA-CX3D N/A N/A 12 VDC 0.12A 1.44W 5100RPM 32.5dB(A) 3.53CFM (0.100 m3/min) 0.563inchH2O (14.31mmH2O)
BCB0812UHN-TP09 N/A N/A 12 VDC 2.30A 27.60W 10800RPM 69.3dB(A) 30.16CFM (0.854 m3/min) 3.675inchH2O (93.35mmH2O)
AUB1212H-CK15 120x120x25 10.8~13.2 12 VDC 0.27A 3.24W 2200RPM 38.0dB(A) 88.60CFM (2.51 m3/min) 0.161inchH2O (04.08mmH2O)
AFC1212D-SP19 N/A N/A 12 VDC 0.32A 3.84W 3000RPM 46.0dB(A) 89.70CFM (2.540 m3/min) 0.338inchH2O (8.591mmH2O)
AFB1248VHE-TP18 N/A N/A 48 VDC 0.31A 14.88W 4100RPM 55.5dB(A) 190.48CFM (5.394 m3/min) 0.694inchH2O (17.635mmH2O)
AFB1248VHE-T9LN 120x120x38 34.0~56.0 48 VDC 0.31A 14.88W 4100RPM 55.5dB(A) 190.48CFM (5.394 m3/min) 0.694inchH2O (17.635mmH2O)
AFB1224GHEYNU N/A N/A 24 VDC 1.30A 31.20W 5200RPM 62.0dB(A) 240.96CFM (6.823 m3/min) 1.082inchH2O (27.483mmH2O)
AFB1212HHE-TP02 N/A N/A 12 VDC 0.40A 4.80W 2900RPM 44.0dB(A) 120.07CFM (3.400 m3/min) 0.354inchH2O (09.00mmH2O)
Part number (Download spec sheets) Dimension (mm) Operating Voltage Range (VDC) Voltage (VDC) Current (A) Power (W) Speed (RPM) Noise (dB-A) Air Flow (CFM) Air Pressure (in H2O)

Contact local distributors for standard PWM fan offerings.

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