10uF/6.3V C21 2.2n C20 0.1 R21 102 R20 316 + _ 5V@1A POWER MANAGEMENT Applications Information R11 3k C6 100p Z2 CMZ5929 R10 1k C7 100p R4 100k R3 820k R2 2M R1 750k Q1 FZT458 SC4809A/B/C PRELIMINARY Flyback, 90V - 300V to 5V @ 1A typ. www.semtech.com Za ZMM5242B Ra 300 1W Qa TIP30C 2002 Semtech Corp. C1 1.0/100V 7 R5 7.5k R4 2.7k R3 1k C1 1.0/100V R5 7.5k R4 2.7k R3 1k C2 100p R6 10k R2 20k C2 150p R6 10k R2 20k R7 1k 5 4 3 2 1 R7 1k 5 4 3 2 1 U1 SC4809 R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD U1 SC4809 C4 0.1 6 7 8 9 10 C4 0.1 6 7 8 9 10 C5 C6 0.47 200p C7 0.1 C5 C6 0.47 200p C7 0.1 R11 7.5k VCC R11 7.5k OUT EN U2 SC1301 R9 100 GND IN R10 47k VCC OUT EN U2 SC1301 GND IN R10 47k 3 2 1 Z1 ZMM5242B 3 2 1 Z1 ZMM5242B R9 100 R12 1k 4 5 R12 1k 4 5 Q2 IRF640N Q2 IRF640N R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R15 22k C9 1n D1 MU

nt gain margin would be too small causing sever underdamped oscillations at fc. 2002 Semtech Corp. By combining the Bode plots of the PWM and power stage with the error amplifier compensation, a plot of the entire system is realized. 11 www.semtech.com Za ZMM5242B Ra 300 1W Qa TIP30C 2002 Semtech Corp. C1 1.0/100V 12 R5 7.5k R4 2.7k R3 1k C1 1.0/100V R5 7.5k R4 2.7k R3 1k C2 100p R6 10k R2 20k C2 150p R6 10k R2 20k R7 1k 5 4 3 2 1 R7 1k 5 4 3 2 1 U1 SC4809 R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD U1 SC4809 C4 0.1 6 7 8 9 10 C4 0.1 6 7 8 9 10 C5 C6 0.47 200p C7 0.1 C5 C6 0.47 200p C7 0.1 R11 7.5k VCC R11 7.5k OUT EN U2 SC1301 R9 100 GND IN R10 47k VCC OUT EN U2 SC1301 GND IN R10 47k 3 2 1 Z1 ZMM5242B 3 2 1 Z1 ZMM5242B R9 100 R12 1k 4 5 R12 1k 4 5 Q2 IRF640N Q2 IRF640N R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R15 22k C9 1n D1 M

, SOT-23-5, SEMTECH R21 102 PRELIMINARY www.semtech.com SC4809A/B Flyback, 90V - 300V to 5V @ 1A typ. 6 R7 7.5k C18 330/6.3V/0.04 Ohm Ns1 C9 33n Fsw = 500kHz L2 10uH U2 SC1301A OUT C7 100p C13 4.7/20V/1.8 Ohm Np2 D2 US1G U1 SC4809 C5 0.1 Np1 D3 US1B 11 Za ZMM5242B Ra 300 1W Qa TIP30C 2002 Semtech Corp. C1 1.0/100V 7 R5 7.5k R4 2.7k R3 1k C1 1.0/100V R5 7.5k R4 2.7k R3 1k C2 100p R6 10k R2 20k C2 150p R6 10k R2 20k R7 1k 5 4 3 2 1 R7 1k 5 4 3 2 1 U1 SC4809 R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD U1 SC4809 C4 0.1 6 7 8 9 10 C4 0.1 6 7 8 9 10 C5 C6 0.47 200p C7 0.1 C5 C6 0.47 200p C7 0.1 R11 7.5k VCC R11 7.5k OUT EN U2 SC1301 R9 100 GND IN R10 47k VCC OUT EN U2 SC1301 GND IN R10 47k 3 2 1 Z1 ZMM5242B 3 2 1 Z1 ZMM5242B R9 100 R12 1k 4 5 R12 1k 4 5 Q2 IRF640N Q2 IRF640N R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R15 22k C9 1n D1 MU

nt gain margin would be too small causing sever underdamped oscillations at fc. 2002 Semtech Corp. By combining the Bode plots of the PWM and power stage with the error amplifier compensation, a plot of the entire system is realized. 11 www.semtech.com Za ZMM5242B Ra 300 1W Qa TIP30C 2002 Semtech Corp. C1 1.0/100V 12 R5 7.5k R4 2.7k R3 1k C1 1.0/100V R5 7.5k R4 2.7k R3 1k C2 100p R6 10k R2 20k C2 150p R6 10k R2 20k R7 1k 5 4 3 2 1 R7 1k 5 4 3 2 1 U1 SC4809 R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD U1 SC4809 C4 0.1 6 7 8 9 10 C4 0.1 6 7 8 9 10 C5 C6 0.47 200p C7 0.1 C5 C6 0.47 200p C7 0.1 R11 7.5k VCC R11 7.5k OUT EN U2 SC1301 R9 100 GND IN R10 47k VCC OUT EN U2 SC1301 GND IN R10 47k 3 2 1 Z1 ZMM5242B 3 2 1 Z1 ZMM5242B R9 100 R12 1k 4 5 R12 1k 4 5 Q2 IRF640N Q2 IRF640N R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R15 22k C9 1n D1 M

nt gain margin would be too small causing sever underdamped oscillations at fc. 2005 Semtech Corp. By combining the Bode plots of the PWM and power stage with the error amplifier compensation, a plot of the entire system is realized. 12 www.semtech.com Za ZMM5242B Ra 300 1W Qa TIP30C 2005 Semtech Corp. C1 1.0/100V 13 R5 7.5k R4 2.7k R3 1k C1 1.0/100V R5 7.5k R4 2.7k R3 1k C2 100p R6 10k R2 20k C2 150p R6 10k R2 20k R7 1k 5 4 3 2 1 R7 1k 5 4 3 2 1 U1 SC4809 R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD U1 SC4809 C4 0.1 6 7 8 9 10 C4 0.1 6 7 8 9 10 C5 C6 0.47 200p C7 0.1 C5 C6 0.47 200p C7 0.1 R11 7.5k VCC R11 7.5k OUT EN U2 SC1301 R9 100 GND IN R10 47k VCC OUT EN U2 SC1301 GND IN R10 47k 3 2 1 Z1 ZMM5242B 3 2 1 Z1 ZMM5242B R9 100 R12 1k 4 5 R12 1k 4 5 Q2 IRF640N Q2 IRF640N R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R15 22k C9 1n D1 M

fEAPOLE Rd Ri fEAZERO = 1 2 * * R f * Cf fEAPOLE = 1 2 * * R f * Cp ISC * R OUT * VIN VC * (1 - D) * (2 * N * VO + VIN ) = 20 * log* fC 0 fC RHP frhpzero/ fC 180 45 180 -2 -40dB/decade, 0dB -20dB/decade 1 2 fC 2003 Semtech Corp. PWM 11 www.semtech.com Za ZMM5242B Ra 300 1W Qa TIP30C 2003 Semtech Corp. C1 1.0/100V 12 R5 7.5k R4 2.7k R3 1k C1 1.0/100V R5 7.5k R4 2.7k R3 1k C2 100p R6 10k R2 20k C2 150p R6 10k R2 20k R7 1k 5 4 3 2 1 R7 1k 5 4 3 2 1 U1 SC4809 R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD U1 SC4809 C4 0.1 6 7 8 9 10 C4 0.1 6 7 8 9 10 C5 C6 0.47 200p C7 0.1 C5 C6 0.47 200p C7 0.1 R11 7.5k VCC R11 7.5k OUT EN U2 SC1301 R9 100 GND IN R10 47k VCC OUT EN U2 SC1301 GND IN R10 47k 3 2 1 Z1 ZMM5242B 3 2 1 Z1 ZMM5242B R9 100 R12 1k 4 5 R12 1k 4 5 Q2 IRF640N Q2 IRF640N R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R15 22k C9 1n D1 M

nt gain margin would be too small causing sever underdamped oscillations at fc. 2003 Semtech Corp. By combining the Bode plots of the PWM and power stage with the error amplifier compensation, a plot of the entire system is realized. 11 www.semtech.com Za ZMM5242B Ra 300 1W Qa TIP30C 2003 Semtech Corp. C1 1.0/100V 12 R5 7.5k R4 2.7k R3 1k C1 1.0/100V R5 7.5k R4 2.7k R3 1k C2 100p R6 10k R2 20k C2 150p R6 10k R2 20k R7 1k 5 4 3 2 1 R7 1k 5 4 3 2 1 U1 SC4809 R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD U1 SC4809 C4 0.1 6 7 8 9 10 C4 0.1 6 7 8 9 10 C5 C6 0.47 200p C7 0.1 C5 C6 0.47 200p C7 0.1 R11 7.5k VCC R11 7.5k OUT EN U2 SC1301 R9 100 GND IN R10 47k VCC OUT EN U2 SC1301 GND IN R10 47k 3 2 1 Z1 ZMM5242B 3 2 1 Z1 ZMM5242B R9 100 R12 1k 4 5 R12 1k 4 5 Q2 IRF640N Q2 IRF640N R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R15 22k C9 1n D1 M

nt gain margin would be too small causing sever underdamped oscillations at fc. 2005 Semtech Corp. By combining the Bode plots of the PWM and power stage with the error amplifier compensation, a plot of the entire system is realized. 12 www.semtech.com Za ZMM5242B Ra 300 1W Qa TIP30C 2005 Semtech Corp. C1 1.0/100V 13 R5 7.5k R4 2.7k R3 1k C1 1.0/100V R5 7.5k R4 2.7k R3 1k C2 100p R6 10k R2 20k C2 150p R6 10k R2 20k R7 1k 5 4 3 2 1 R7 1k 5 4 3 2 1 U1 SC4809 R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD U1 SC4809 C4 0.1 6 7 8 9 10 C4 0.1 6 7 8 9 10 C5 C6 0.47 200p C7 0.1 C5 C6 0.47 200p C7 0.1 R11 7.5k VCC R11 7.5k OUT EN U2 SC1301 R9 100 GND IN R10 47k VCC OUT EN U2 SC1301 GND IN R10 47k 3 2 1 Z1 ZMM5242B 3 2 1 Z1 ZMM5242B R9 100 R12 1k 4 5 R12 1k 4 5 Q2 IRF640N Q2 IRF640N R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R15 22k C9 1n D1 M

0 6.0 +0.058 ZMM5237B 8.2 7.79 8.61 20 8.0 500 3.0 6.5 +0.062 ZMM5238B 8.7 8.27 9.14 20 8.0 600 3.0 6.5 +0.065 ZMM5239B 9.1 8.65 9.56 20 10 600 3.0 7.0 +0.068 ZMM5240B 10 9.50 10.50 20 17 600 3.0 8.0 +0.075 ZMM5241B 11 10.45 11.55 20 22 600 2.0 8.4 +0.076 ZMM5242B 12 11.40 12.60 20 30 600 1.0 9.1 +0.077 ZMM5243B 13 12.35 13.65 9.5 13 600 0.5 9.9 +0.079 ZMM5244B 14 13.30 14.70 9.0 15 600 0.1 10 +0.082 ZMM5245B 15 14.25 15.75 8.5 16 600 0.1 11 +0.082 ZMM5246B 16 15.20 16.80 7.8 17 600 0.1 12 +0.083 ZMM5247B 17 16.15 17.85 7.4 19 600 0.1 13 +0.084 ZMM5248B 18 17.10 18.90 7.0 21 600 0.1 14 +0.085 ZMM5249B 19 18.05 19.95 6.6 23 600 0.1 14 +0.086 ZMM5250B 20 19.00 21.00 6.2 25 600 0.1 15 +0.086 ZMM5251B 22 20.90 23.10 5.6 29 600 0.1 17 +0.087 ZMM5252B 24 22.80 25.20 5.2 33 600 0.1 18 +0.087 ZMM5253B 25 23.75 26.25 5.0 35 600 0.1 19 +0.089 ZMM5254B 27 25.65 28.35 4.6 41 600 0.1 21 +0.090 ZMM5255B 28 26.60 29.40 4.5 44 600 0.1 21 +0.091 ZMM5256B 30 28.50 31.50 4.2 49 600 0.1 23 +0.091 ZMM5257B 33 31.35 3

nt gain margin would be too small causing sever underdamped oscillations at fc. 2005 Semtech Corp. By combining the Bode plots of the PWM and power stage with the error amplifier compensation, a plot of the entire system is realized. 12 www.semtech.com Za ZMM5242B Ra 300 1W Qa TIP30C 2005 Semtech Corp. C1 1.0/100V 13 R5 7.5k R4 2.7k R3 1k C1 1.0/100V R5 7.5k R4 2.7k R3 1k C2 100p R6 10k R2 20k C2 150p R6 10k R2 20k R7 1k 5 4 3 2 1 R7 1k 5 4 3 2 1 U1 SC4809 R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD R8 3.9k SS FB GND OUT VREF DISABLE Q1 MMBT2907A C3 0.47 DMAX RCT SYNC LUVLO VDD U1 SC4809 C4 0.1 6 7 8 9 10 C4 0.1 6 7 8 9 10 C5 C6 0.47 200p C7 0.1 C5 C6 0.47 200p C7 0.1 R11 7.5k VCC R11 7.5k OUT EN U2 SC1301 R9 100 GND IN R10 47k VCC OUT EN U2 SC1301 GND IN R10 47k 3 2 1 Z1 ZMM5242B 3 2 1 Z1 ZMM5242B R9 100 R12 1k 4 5 R12 1k 4 5 Q2 IRF640N Q2 IRF640N R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R14 0.2 1/2W R13 10 C8 1.0 L1 10uH R15 22k C9 1n D1 M

0 6.0 +0.058 ZMM5237B 8.2 7.79 8.61 20 8.0 500 3.0 6.5 +0.062 ZMM5238B 8.7 8.27 9.14 20 8.0 600 3.0 6.5 +0.065 ZMM5239B 9.1 8.65 9.56 20 10 600 3.0 7.0 +0.068 ZMM5240B 10 9.50 10.50 20 17 600 3.0 8.0 +0.075 ZMM5241B 11 10.45 11.55 20 22 600 2.0 8.4 +0.076 ZMM5242B 12 11.40 12.60 20 30 600 1.0 9.1 +0.077 ZMM5243B 13 12.35 13.65 9.5 13 600 0.5 9.9 +0.079 ZMM5244B 14 13.30 14.70 9.0 15 600 0.1 10 +0.082 ZMM5245B 15 14.25 15.75 8.5 16 600 0.1 11 +0.082 ZMM5246B 16 15.20 16.80 7.8 17 600 0.1 12 +0.083 ZMM5247B 17 16.15 17.85 7.4 19 600 0.1 13 +0.084 ZMM5248B 18 17.10 18.90 7.0 21 600 0.1 14 +0.085 ZMM5249B 19 18.05 19.95 6.6 23 600 0.1 14 +0.086 ZMM5250B 20 19.00 21.00 6.2 25 600 0.1 15 +0.086 ZMM5251B 22 20.90 23.10 5.6 29 600 0.1 17 +0.087 ZMM5252B 24 22.80 25.20 5.2 33 600 0.1 18 +0.087 ZMM5253B 25 23.75 26.25 5.0 35 600 0.1 19 +0.089 ZMM5254B 27 25.65 28.35 4.6 41 600 0.1 21 +0.090 ZMM5255B 28 26.60 29.40 4.5 44 600 0.1 21 +0.091 ZMM5256B 30 28.50 31.50 4.2 49 600 0.1 23 +0.091 ZMM5257B 33 31.35 3

20 +0.058 3.0 6.0 ZMM5237B 8.2 7.79 8.61 20 8.0 20 +0.062 3.0 6.5 ZMM5238B 8.7 8.27 9.14 20 8.0 20 +0.065 3.0 6.5 ZMM5239B 9.1 8.65 9.56 20 10 20 +0.068 3.0 7.0 ZMM5240B 10 9.50 10.50 20 17 20 +0.075 3.0 8.0 ZMM5241B 11 10.45 11.55 20 22 20 +0.076 2.0 8.4 ZMM5242B 12 11.40 12.60 20 30 20 +0.077 1.0 9.1 ZMM5243B 13 12.35 13.65 9.5 13 9.5 +0.079 0.5 9.9 ZMM5244B 14 13.30 14.70 9.0 15 9.0 +0.082 0.1 10 ZMM5245B 15 14.24 15.75 8.5 16 8.5 +0.082 0.1 11 ZMM5246B 16 15.20 16.80 7.8 17 7.8 +0.083 0.1 12 ZMM5247B 17 16.15 17.85 7.4 19 7.4 +0.084 0.1 13 ZMM5248B 18 17.10 18.90 7.0 21 7.0 +0.085 0.1 14 ZMM5249B 19 18.05 19.95 6.6 23 6.6 +0.086 0.1 14 ZMM5250B 20 19.00 21.00 6.2 25 6.2 +0.086 0.1 15 ZMM5251B 22 20.90 23.10 5.6 29 5.6 +0.087 0.1 17 ZMM5252B 24 22.80 25.20 5.2 33 5.2 +0.087 0.1 18 ZMM5253B 25 23.75 26.25 5.0 35 5.0 +0.089 0.1 19 1. Tested with pulses, Tp = 100ms. =HQHU 'LRGHV Type Number Nom V Zener Voltage Range1 Max. Zener Impedance Typical Temperature Coefficient Max. Reverse Leakage Curren

CVCO Capacitor, 22 nF, SMT 1206 16 1 C17 Capacitor, 1 F, SMT 1206 17 1 CY Y-Capacitor 18 4 D4, D7 Diode, 1N4148, SMT DL35 Diodes LL4148 19 2 D1, D8 Diode, 1N4148 Diodes 20 2 D2, D3 Diode, 1A 600V SMB Digi-Key MURS160DICT-ND 21 1 D5 12V Zener SMT Digi-Key ZMM5242BCT-ND 22 1 D9 5.1V Zener SMT Digi-Key ZMM5231BCT-ND 23 1 D6 5.6V Zener SMT Digi-Key 24 1 L1 EMI Inductor, 1x10 mH, 0.7A Panasonic ELF-15N007A 25 1 L2 PFC Inductor, 2.0 mH, 2.0Apk Coilcraft Z9265-A 26 1 L3 Inductor, 2.0 mH, 2.0Apk Coilcraft Z9264-A 27 3 M1, M2, M3 Transistor MOSFET IR IRF820 28 1 R15 Resistor, 1K Ohm, SMT 1206 Panasonic ERJ-8GEYJ1KV 29 1 R33 Resistor, 750 Ohm, SMT 1206 Panasonic 30 1 RFMIN Resistor, 39K Ohm, SMT 1206 Panasonic DS00809B-page 12 ECU-V1H471KBM 2002 Microchip Technology Inc. AN809 TABLE B-1: IRPLDIM2E BOM (LAMP TYPE: T8/36W; LINE INPUT VOLTAGE: 185 TO 265 VAC (CON'T) Item Qty Reference Description Manufacturer PN 31 6 RDIM R12, R20, R34, R35, R36 Resistor, 10K Ohm, SMT 1206 Panasonic ERJ-8GEYJ10KV 32 1 RIPH R

CVCO Capacitor, 22 nF, SMT 1206 16 1 C17 Capacitor, 1 F, SMT 1206 17 1 CY Y-Capacitor 18 4 D4, D7 Diode, 1N4148, SMT DL35 Diodes LL4148 19 2 D1, D8 Diode, 1N4148 Diodes 20 2 D2, D3 Diode, 1A 600V SMB Digi-Key MURS160DICT-ND 21 1 D5 12V Zener SMT Digi-Key ZMM5242BCT-ND 22 1 D9 5.1V Zener SMT Digi-Key ZMM5231BCT-ND 23 1 D6 5.6V Zener SMT Digi-Key 24 1 L1 EMI Inductor, 1x10 mH, 0.7A Panasonic ELF-15N007A 25 1 L2 PFC Inductor, 2.0 mH, 2.0Apk Coilcraft Z9265-A 26 1 L3 Inductor, 2.0 mH, 2.0Apk Coilcraft Z9264-A 27 3 M1, M2, M3 Transistor MOSFET IR IRF820 28 1 R15 Resistor, 1K Ohm, SMT 1206 Panasonic ERJ-8GEYJ1KV 29 1 R33 Resistor, 750 Ohm, SMT 1206 Panasonic 30 1 RFMIN Resistor, 39K Ohm, SMT 1206 Panasonic DS00809A-page 12 Preliminary ECU-V1H471KBM 2001 Microchip Technology Inc. AN809 TABLE B-1: IRPLDIM2E BOM (LAMP TYPE: T8/36W; LINE INPUT VOLTAGE: 185 TO 265 VAC (CON'T) Item Qty Reference Description Manufacturer PN 31 6 RDIM R12, R20, R34, R35, R36 Resistor, 10K Ohm, SMT 1206 Panasonic ERJ-8GEYJ10KV

+0.058 3.0 6.0 ZMM5237B 8.2 7.79 8.61 20 8.0 20 +0.062 3.0 6.5 ZMM5238B 8.7 8.27 9.14 20 8.0 20 +0.065 3.0 6.5 ZMM5239B* 9.1 8.65 9.56 20 10 20 +0.068 3.0 7.0 ZMM5240B* 10 9.50 10.50 20 17 20 +0.075 3.0 8.0 ZMM5241B 11 10.45 11.55 20 22 20 +0.076 2.0 8.4 ZMM5242B* 12 11.40 12.60 20 30 20 +0.077 1.0 9.1 ZMM5243B 13 12.35 13.65 9.5 13 9.5 +0.079 0.5 9.9 ZMM5244B* 14 13.30 14.70 9.0 15 9.0 +0.082 0.1 10 ZMM5245B* 15 14.24 15.75 8.5 16 8.5 +0.082 0.1 11 ZMM5246B* 16 15.20 16.80 7.8 17 7.8 +0.083 0.1 12 ZMM5247B 17 16.15 17.85 7.4 19 7.4 +0.084 0.1 13 ZMM5248B* 18 17.10 18.90 7.0 21 7.0 +0.085 0.1 14 ZMM5249B 19 18.05 19.95 6.6 23 6.6 +0.086 0.1 14 ZMM5250B* 20 19.00 21.00 6.2 25 6.2 +0.086 0.1 15 ZMM5251B* 22 20.90 23.10 5.6 29 5.6 +0.087 0.1 17 ZMM5252B* 24 22.80 25.20 5.2 33 5.2 +0.087 0.1 18 ZMM5253B 25 23.75 26.25 5.0 35 5.0 +0.089 0.1 19 1. Tested with pulses, Tp = 100ms. 2. Valid provided that electrodes are kept at ambient temperature. (*) Preferred Part. =HQHU 'LRGHV Type Number Max. Zener Z