ON Semiconductor Diodes Zener Diodes Voltage Regulator Diodes Axial Leaded for Through-Hole Designs (Cathode=Polarity Band) Mfr.Os Type 500 mW Low Level2 500 mW3 1 Watt4 5 Watts5 Nominal Zener Breakdown Voltage (V)1 1N4678 N N N N N N N N N N N N N N N N N N N N N N N N 1N5221B 1N5223B 1N5226B 1N5228B 1N5229B 1N5230B 1N5231B 1N5232B 1N5233B 1N5234B 1N5235B 1N5236B 1N5237B 1N5239B 1N5240B N 1N5242B N N 1N5245B N N 1N5248B N N N 1N4728A 1N4730A 1N4731A 1N4732A 1N4733A 1N4734A N 1N4735A 1N4736A 1N4737A 1N4738A 1N4739A 1N4740A N 1N4742A 1N4743A N 1N4744A 1N4745A N 1N4746A N N N 1N5333B 1N5335B 1N5336B 1N5337B 1N5338B 1N5339B 1N5340B 1N5341B 1N5342B 1N5343B 1N5344B 1N5346B 1N5347B 1N5348B 1N5349B 1N5350B 1N5351B 1N5352B 1N5353B 1N5354B 1N5355B 1.8 2.4 2.7 3.3 3.9 4.3 4.7 5.1 5.6 6.0 6.2 6.8 7.5 8.2 9.1 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 DO-204AH* (DO-41)** Case 17 Mfr.Os Type 500 mW Low Level2 500 mW3 1 Watt4 5 Watts5 Nominal Zener Breakdown Voltage (V)1 N N N N N N N N N N N N N N N N N N N N N N N N N N N N 1N5254B N N N N N N N N N N N N N N N N N N N 1N4747A 1N4748A 1N4749A N 1N4750A N 1N4751A 1N4752A N 1N4754A N N N N 1N4759A 1N4760A 1N4761A N N N N N N N 1N5357B 1N5358B 1N5359B 1N5360B N 1N5362B 1N5363B 1N5364B 1N5365B 1N5366B 1N5367B 1N5368B 1N5369B 1N5370B 1N5372B N 1N5374B 1N5375B 1N5377B 1N5378B 1N5380B 1N5383B 1N5386B 1N5388B 20.0 22.0 24.0 25.0 27.0 28.0 30.0 33.0 36.0 39.0 43.0 47.0 51.0 56.0 62.0 68.0 75.0 82.0 91.0 100.0 120.0 150.0 180.0 200.0 DO-204AH* (DO-41)** Case 17 Zener Voltage is the key parameter for each device type. It is specified at a particular test current applied at either thermal equilibrium (T.E.) or pulse test condition. The voltage tolerance for the device types listed is, in general, 5%; however, for some series, the voltage tolerance varies from device type to device type over a range of (5 to 8.5)%. Consult the complete data sheet to determine the exact test conditions and minimum/maximum limits for the zener voltage. Consult Application Note AN924 regarding measurement of Zener Voltage (pulse versus thermal equilibrium). Power Ratings represent the capability of the case size listed as supplied by ON Semiconductor. These ratings may be higher than the JEDEC registration and/or the same device types supplied by other manufacturers. VZ Test Conditions and Tolerances. 21N4678 Series: IZT =50 A (T.E.) N No suffix=5%; C suffix=2%; D suffix=1%. Also has delta VZ parameter and limit. 3 1N5221B-42B,1N5243B-81B: IZT =20 mA (T.E), IZT @ approximately 125 mW point (T.E) N B suffix=5%; C suffix=2%; D suffix=1%. 41N4728A-64A: IZT @ approximately 250 mW point (T.E.) N A suffix=5%; C suffix=2%; D suffix=1%. 51N5333B-88B: IZT varies from 0.9 to 1.5 W point depending on type number (pulse) N B suffix=5%; Also has delta VZ parameter and limit.*Glass Case 299 N (DO-35). **Glass Case 59-03. Plastic Surmetic 40. 1 Surface Mount Zener Diodes 13 Mfr.Os Type Case 425** Case 318-08* Case 403A 225 mW SOT-232 500 mW Low Level SOD-1233 500 mW SOD-1234 3 Watt SMB5 MMBZ5226BLT1 MMBZ5229BLT1 N MMBZ5231BLT1 N MMBZ5234BLT1 MMBZ5235BLT1 MMBZ5236BLT1 N MMSZ4684T1 N MMSZ4688T1 MMSZ4689T1 MMSZ4690T1 MMSZ4691T1 N N N MMSZ5226BT1 N N MMSZ5231BT1 MMSZ5232BT1 N N MMSZ5236BT1 MMSZ5237BT1 N N N N N N N N 1SMB5923BT3 Mfr.Os Type Nominal Zener Breakdown Voltage (V) 1 Case 318-08* 225 mW SOT-232 500 mW Low Level SOD-1233 500 mW SOD-1234 3 Watt SMB5 3.3 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 N MMBZ5240BLT1 MMBZ5242BLT1 MMBZ5245BLT1 MMBZ5248BLT1 N N N N N N N N N N N N N MMSZ5239BT1 MMSZ5240BT1 MMSZ5242BT1 MMSZ5245BT1 N N MMSZ5258BT1 MMSZ5260BT1 N N N N 1SMB5929BT3 1SMB5931BT3 N N N N Case 425** Case 403A Nominal Zener Breakdown Voltage (V) 1 9.1 10.0 12.0 15.0 18.0 25.0 36.0 43.0 N Zener Voltage is the key parameter for each device type. It is specified at a particular test current applied at either thermal equilibrium (T.E.) or pulse test condition. The voltage tolerance for the device types listed is, in general 5%; however, for some series, the voltage tolerance varies from device type to device type over a range of (5 to 8.5)%. Consult the complete data sheet to determine the exact test conditions and minimum/maximum limits for the zener voltage. Power Ratings represent the capability of the case size listed as supplied by ON Semiconductor. These ratings may be higher than the same device types supplied by other manufacturers. VZ Test Conditions and Tolerances. 2MMBZ5221BL-42BLT1, MMBZ5243L-70BLT1: IZT =20 mA, IZT @ approximately 125 mW point (pulse) N BL suffix=5%. 3MMSZ4678T1 Series: IZT=50 A (T.E) N No suffix=5%. 4MMSZ5221B-42BT1, MMSZ5343B-63BT1: IZT=20 mA (T.E), IZT @ approximately 125 mW point (T.E.) N A suffix=10%; B suffix=5%. 51SMB5913BT3 Series: IZT @ approximately 375 mW point (T.E.) N BT3 suffix=5%; T3 suffix designates tape and reel of 2500 units. *Plastic N TO-236AB. **Plastic N Style 1. Plastic N Cathode=Notch. Note: T1 suffix indicates 3000 pieces tape and reel. T3 suffix indicates 2500 piece tape and reel. 1 Prices Subject To Change N We Always Ship At The Lowest Price In Effect ALLIED c 849