Model No: MMSZ4684-E3-08
Vishay Siliconix MMSZ4684-E3-08
Manufacturer: Vishay Siliconix
SEMICON NO.: MMSZ4684-E3-08
Package: SOD-123
Stock: In stock
Description: Zener Diode Single 3.3V 0.5W
SEMICON NO.: MMSZ4684-E3-08
Package: SOD-123
Stock: In stock
Description: Zener Diode Single 3.3V 0.5W
Quantity :
| Mfr | Vishay Siliconix |
| Device Type | Single Zener Diode (Voltage Regulator) |
| Zener Voltage | 3.3 V (Nominal) |
| Zener Voltage Range | 3.14 V to 3.47 V |
| Voltage Tolerance | ±5% |
| Power Dissipation (Pd) | 500 mW |
| Reverse Leakage Current (Ir) | 7.5 µA @ 1.5 V |
| Test Current (Iz) | 50 µA |
| Operating Temperature | -55°C to +150°C |
| Package | SOD-123 |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
MMSZ4684‑E3‑08 is a surface‑mount single Zener diode produced by Vishay, delivering a precise 3.3 V nominal breakdown voltage with ±5 % tolerance and 500 mW maximum power‑dissipation rating. Packaged in the compact two‑pin SOD‑123 plastic housing and delivered via tape‑and‑reel for automated assembly, this silicon planar component features low reverse leakage current of 7.5 μA, operates over a wide industrial temperature range of ‑55 °C to 150 °C, and provides reliable voltage clamping, reference generation and transient‑overvoltage protection for low‑voltage 3.3‑V logic circuits, portable consumer electronics and general‑purpose embedded boards.
Key Features
● Nominal Zener voltage of 3.3 V with ±5 % tight voltage tolerance, well‑matched for standard 3.3‑volt power‑rail regulation.
● 500 mW maximum power dissipation under 25 °C ambient temperature, supporting sufficient safety margin for low‑power circuit‑protection tasks.
● Low 7.5 μA maximum reverse leakage current at 1.5 V, minimizing wasted power in battery‑powered equipment.
● Test current of 50 μA for stable Zener‑voltage characterization, suitable for low‑bias reference‑voltage generation.
● Wide operating junction temperature range from ‑55 °C up to 150 °C for stable performance inside rugged industrial environments.
FAQ
Q: What is the primary purpose of this 3.3 V Zener diode?
A: It provides stable 3.3‑volt voltage reference or clamps excess voltage spikes to protect downstream ICs.
Q: Can it drive heavy‑load circuits directly?
A: No, its 500 mW power rating is intended for signal‑level protection and reference generation rather than high‑current power regulation.
Alternative voltage regulator diode Models
1. MMSZ4684‑HE3_A‑08: Automotive‑grade AEC‑Q101 qualified 3.3 V Zener diode with identical electrical parameters, built to withstand harsh conditions inside vehicle‑borne electronics.
2. BZX84‑C3V3: 3.3 V, 300 mW SOT‑23 Zener diode, a widely‑available cross‑brand replacement with a different footprint for low‑power signal‑clamping projects.
3. MMSZ4685‑E3‑08: 3.6 V SOD‑123 Zener diode from the same product family, a convenient upgrade selection when a slightly‑higher reference‑voltage level is needed.
