الصفحة الرئيسية > أجهزة أشباه الموصلات المنفصلة > ترانزستورات ثنائية القطب معزولة البوابة (IGBT) > MMSZ5231BT1G

MMSZ5231BT1G

5.1V Zener diode, 5%, 500mW, 17ohm, SOD-123, voltage regulation

5200

المخزون الفعال

انتقل إلى الاستفسار

Image for reference only

جزء الشركة المصنعة ： جزء الشركة المصنعة

MMSZ5231BT1G

الحزمة ： الحزمة

SOD-123 (2.65 x 1.60 x 0.90 mm)

الوصف

نظرة عامة على المنتج

The MMSZ5231BT1G from onsemi is a 5.1 V Zener diode in a SOD-123 package. With 5% tolerance, 500 mW power dissipation, and 17 Ω dynamic impedance, it provides reliable voltage regulation and reference for 5 V logic systems.

المواصفات الرئيسية

Zener Voltage (VZ)	5.1 V (nominal), 4.85-5.36 V (range)
Tolerance	5% (B suffix)
تبديد الطاقة	500 mW
Zener Impedance	17 Ω @ IZT = 20 mA
Leakage Current	5 µA @ VR = 2 V
الحزمة	SOD-123

الميزات

5.1 V nominal Zener voltage with 5% tolerance
Low 17 Ω dynamic impedance for stable regulation
500 mW power rating in compact SOD-123
Pb-Free, Halogen Free, and RoHS compliant

التطبيقات

5 V logic voltage regulation and clamping
Overvoltage protection for USB and TTL logic
Voltage reference for comparators
Signal clipping and level shifting
General-purpose shunt regulation

مقدمة المنتج:MMSZ5231BT1G مقدمة المنتج

The MMSZ5231BT1G from onsemi is a 5.1 V nominal Zener diode in a SOD-123 surface-mount package. The B suffix indicates 5% voltage tolerance with a Zener voltage range of 4.85 V to 5.36 V at IZT = 20 mA. With a low dynamic impedance of 17 Ω, the device provides stable voltage regulation that varies only 340 mV over a 20 mA change in Zener current. The 500 mW power dissipation rating supports applications requiring up to 85 mA of Zener current at the nominal voltage. The SOD-123 package is compatible with standard surface-mount assembly processes. Pb-Free, Halogen Free, and RoHS compliant. The T1 suffix indicates 3000-unit tape and reel packaging.

مبدأ العمل:MMSZ5231BT1G مبدأ العمل

The MMSZ5231BT1G operates in the reverse breakdown region where the Zener diode maintains a relatively constant voltage across its terminals. When reverse-biased above 5.1 V, the diode enters avalanche breakdown and conducts current while maintaining the Zener voltage. The low dynamic impedance of 17 Ω at IZT ensures that the Zener voltage changes only 17 mV per mA change in Zener current, providing a stable reference. In a shunt regulator circuit, a series resistor drops the supply voltage to the Zener voltage, and the Zener diode shunts excess current to regulate the output. The device can also be used as a voltage clamp, limiting signal or supply transients to approximately 5.1 V.

وصف الدبوس:MMSZ5231BT1G تعريف الدبوس ووظائفه

دبوس	الاسم	الوظيفة
1	القطب السالب	Positive terminal during Zener operation; marked with bar
2	الأنود	Negative terminal during Zener operation; connects to ground

Application Scenarios:In which products and applications isMMSZ5231BT1G مستعمل

5 V Rail Clamping: Overvoltage protection and shunt regulation for 5 V TTL and CMOS logic power rails
USB VBUS Protection: Voltage clamping for USB 5 V power bus against transient overvoltage
Voltage Reference: Low-cost 5.1 V reference for comparator and op-amp circuits
Signal Clipping: Limiting analog signal swings to the 5.1 V domain in mixed-voltage systems
Relay Driver Snubber: Clamp inductive kickback to 5.1 V in relay and solenoid driver circuits

Alternative Models:What chips are recommended as replacements for MMSZ5231BT1G

الطراز	الشركة المصنعة	VZ	Tol	Pd	الحزمة	الملاحظات
MMSZ5231B-7-F	شركة ديودز	5.1 V	5%	500 mW	SOD-123	Direct equivalent
BZX55C5V1	نيكسبيريا	5.1 V	5%	500 mW	DO-35	Through-hole equivalent
BZT52C5V1-7-F	شركة ديودز	5.1 V	5%	500 mW	SOD-123	Alternative from Diodes Inc
MM3Z5V1ST1G	أونسمي	5.1 V	5%	200 mW	SOD-523	Smaller package, lower Pd
1N5231B-TR	أونسمي	5.1 V	5%	500 mW	DO-35	Through-hole version