MMSZ5254B-V-GS08 Vishay Diode (Small Outline Diode) In Stock
Vishay MMSZ5254B-V-GS08 is a 27V silicon Zener diode in a SOD-323 (SC-76) SMD package with a single-element configuration and 500mW power dissipation. Key specs include ±2% Zener voltage tolerance, 41Ω dynamic impedance, and lead-free RoHS-compliant construction. Available from stock worldwide with fast shipping at competitive pricing.
- Manufacturer
- Vishay
- Package
- Small Outline Diode
- Pin Count
- 2
- Lifecycle
- OBSOLETE
- Datasheet
- MMSZ5254B-V-GS08 Datasheet PDF
- Category
- Diode
- Price
- From $0.0234(MOQ 1)
- Temp Range
- ?°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MMSZ5254B-V-GS08?
- 27V Zener voltage at ±2% tolerance in a compact SOD-323 SMD package enables precise voltage clamping in space-constrained designs
- 500mW power dissipation with 41Ω maximum dynamic impedance provides stable shunt regulation across a wide current range
- Single silicon Zener element with low knee impedance (600Ω max) ensures reliable voltage clamping at low test currents for protection circuits
What is MMSZ5254B-V-GS08 used for?
The MMSZ5254B-V-GS08 is used as a voltage clamp and transient over-voltage protection diode in 24V to 28V DC systems, protecting sensitive IC inputs from exceeding 27V during switching transients or load dumps. Its SOD-323 package fits high-density PCBs in telecommunications, industrial I/O, and consumer electronics where board area is limited. Circuit designers also use it as a shunt voltage reference or clamp in low-power 27V Zener regulator configurations where the 500mW dissipation budget is sufficient.
What are the specifications of MMSZ5254B-V-GS08?
| YTEOL | 0 |
| Configuration | SINGLE |
| Diode Element Material | SILICON |
| Diode Type | ZENER DIODE |
| Dynamic Impedance-Max | 41Ω |
| JESD-30 Code | R-PDSO-G2 |
| JESD-609 Code | e3 |
| Knee Impedance-Max | 600Ω |
| Number of Elements | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Polarity | UNIDIRECTIONAL |
| Power Dissipation-Max | 0.5W |
| Qualification Status | Not Qualified |
| Reference Voltage-Nom | 27V |
| Reverse Current-Max | 0.1 µA |
| Reverse Test Voltage | 21V |
| Surface Mount | YES |
| Technology | ZENER |
| Terminal Finish | MATTE TIN |
| Terminal Form | GULL WING |
| Terminal Position | DUAL |
| Voltage Temp Coeff-Max | 24.3mV/°C |
| Voltage Tol-Max | 5% |
| Working Test Current | 4.6mA |
| Package | Small Outline Diode |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.50 |
Where can I find the MMSZ5254B-V-GS08 datasheet?
MMSZ5254B-V-GS08 Datasheet DownloadOfficial datasheet from Vishay
What are equivalent replacements for MMSZ5254B-V-GS08?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How much current can the MMSZ5254B-V-GS08 clamp continuously while staying within its 500mW power rating at 27V?
At a 27V Zener voltage, the MMSZ5254B-V-GS08 can conduct a maximum continuous Zener current of approximately 18.5mA (500mW ÷ 27V ≈ 18.5mA) before exceeding its 500mW power dissipation limit. Designers typically operate Zener diodes at 50% to 80% of this maximum, so a practical continuous clamping current of 9mA to 15mA provides adequate safety margin while maintaining the 27V regulated voltage within ±2% tolerance.
What is the SOD-323 package footprint of the MMSZ5254B-V-GS08, and how does it compare to a DO-35 through-hole Zener in board space?
The SOD-323 package measures approximately 1.7 mm × 1.25 mm with 0.85 mm height, occupying under 2.1 mm² of board area. A comparable DO-35 through-hole Zener with a 3.8 mm body and standard lead spacing of 10 mm requires a footprint of roughly 50 mm² to 80 mm² including lead holes. The SOD-323 SMD package thus saves over 95% board area, making MMSZ5254B-V-GS08 ideal for miniaturized industrial I/O protection circuits where multiple clamping diodes must fit in a small zone.
In a 24V industrial sensor input protection circuit, how does the 27V Zener voltage of MMSZ5254B-V-GS08 protect downstream ICs from load-dump transients?
When a 24V industrial sensor input experiences a load-dump transient that drives the line above 27V, the MMSZ5254B-V-GS08 enters avalanche conduction and clamps the voltage to approximately 27V ±2%, limiting the voltage seen by downstream ICs to a safe level. The 41Ω dynamic impedance means at 10mA above Zener threshold the clamped voltage rises only 0.41V above 27V, keeping protection tight. The 500mW rating handles transient energy spikes typical of 24V industrial wiring while the compact SOD-323 package simplifies placement near connector pins.
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About Vishay
Vishay is a leading electronic component manufacturer. FindMyChip sources Vishay ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2500 | $0.25 |
| 81+ | $0.0750 | $6.08 |
| 668+ | $0.0500 | $33.40 |
| 850+ | $0.0375 | $31.88 |
| 3000+ | $0.0281 | $84.30 |
| 7500+ | $0.0234 | $175.50 |
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