| 1 | CS51221 | Enhanced Voltage Mode PWM Controller | 168K |   |   | 
	
	 
		| 2 | CS51221 | Enhanced Voltage Mode PWM Controller | 177K |   |   | 
	
	 
		| 3 | CS51221 | AC-DC Offline Switching Controllers/Regulators | 3900K |   |   | 
	
	 
		| 4 | CS51221/D | Enhanced Voltage Mode PWM Controller | 137K |   |   | 
	
	 
		| 5 | CS51221ED16 | Enhanced Voltage Mode PWM Controller | 168K |   |   | 
	
	 
		| 6 | CS51221ED16 | Enhanced Voltage Mode PWM Controller | 177K |   |   | 
	
	 
		| 7 | CS51221ED16G | Enhanced Voltage Mode PWM Controller | 177K |   |   | 
	
	 
		| 8 | CS51221EDR16 | Enhanced Voltage Mode PWM Controller | 168K |   |   | 
	
	 
		| 9 | CS51221EDR16 | Enhanced Voltage Mode PWM Controller | 177K |   |   | 
	
	 
		| 10 | CS51221EDR16G | Enhanced Voltage Mode PWM Controller | 177K |   |   | 
	
	 
		| 11 | CS51221EDTB16G | Enhanced Voltage Mode PWM Controller | 177K |   |   | 
	
	 
		| 12 | CS51221EDTB16R2G | Enhanced Voltage Mode PWM Controller | 177K |   |   | 
	
	 
		| 13 | CS51221EN16 | Enhanced Voltage Mode PWM Controller | 168K |   |   |