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ZM4734A-GS08
Vishay General Semiconductor - Diodes Division
DIODE ZENER 5.6V 1W DO213AB
1988 Pcs New Original In Stock
Zener Diode 5.6 V 1 W ±5% Surface Mount DO-213AB
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5.0 / 5.0
- (395 Ratings)
ZM4734A-GS08
Product Overview
12786690
DiGi Electronics Part Number
ZM4734A-GS08-DGManufacturer
Vishay General Semiconductor - Diodes Division
ZM4734A-GS08
Description
DIODE ZENER 5.6V 1W DO213ABInventory
1988 Pcs New Original In Stock
Zener Diode 5.6 V 1 W ±5% Surface Mount DO-213AB
Quantity
Minimum 1
Minimum 1
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ZM4734A-GS08 Technical Specifications
Category
Diodes, Zener, Single Zener Diodes
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
Voltage - Zener (Nom) (Vz)
5.6 V
Tolerance
±5%
Power - Max
1 W
Impedance (Max) (Zzt)
5 Ohms
Current - Reverse Leakage @ Vr
10 µA @ 2 V
Operating Temperature
-
Grade
Automotive
Qualification
AEC-Q101
Mounting Type
Surface Mount
Package / Case
DO-213AB, MELF (Glass)
Supplier Device Package
DO-213AB
Base Product Number
ZM4734
Datasheet & Documents
HTML Datasheet
ZM4734A-GS08-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8541.10.0050
Additional Information
Other Names
ZM4734A-GS08TR
ZM4734A-GS08DKR
ZM4734AGS08
ZM4734A-GS08CT
Standard Package
1,500
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
제품의 품질이 뛰어나고, 고객 만족도를 높이기 위한 노력이 돋보입니다.
Dec 02, 2025
웹사이트가 사용자 친화적이라 탐색이 쉽고, 결제도 간편했어요.
Dec 02, 2025
Die Webseite ist so gestaltet, dass man leicht alles findet, und der Versand war blitzschnell.
Dec 02, 2025
親切な対応と充実したアフターケアに感謝しています。価格も素晴らしいです。
Dec 02, 2025
Their commitment to after-sales assistance demonstrates their dedication to excellence.
Dec 02, 2025
The robustness of their products stood up to vibration testing and high temperatures, demonstrating excellent durability.
Dec 02, 2025
The website is incredibly user-friendly, allowing me to navigate and find what I need effortlessly.
Dec 02, 2025
Speedy shipping allowed me to enjoy my purchase sooner than I hoped.
Dec 02, 2025
I find their pricing transparent and fair, with packaging that reflects careful consideration.
Dec 02, 2025
DiGi Electronics provides affordable pricing along with top-quality customer care.
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Frequently Asked Questions (FAQ)
Can the ZM4734A-GS08 Zener diode be safely used in a 12V automotive power rail protection circuit without risking thermal runaway under sustained reverse bias near its 5.6V nominal Zener voltage?
Yes, but with critical design considerations: the ZM4734A-GS08 is rated for 1W continuous power dissipation in DO-213AB (MELF) package, but in a 12V system with transients or sustained overvoltage, power dissipation can exceed safe limits if current isn’t limited by a series resistor. Calculate worst-case power using P = (Vin_max – Vz) × Iz, and ensure derating above 70°C ambient. Since it’s AEC-Q101 qualified and automotive-grade, it’s suitable for such environments—but always include a current-limiting resistor and consider transient energy via ISO 7637-2 pulse testing to avoid cumulative heating and thermal runaway.
Is the ZM4734A-GS08 a drop-in replacement for the BZX84C5V6 in a 5V rail clamping application, and what are the key reliability differences I should evaluate before switching?
The ZM4734A-GS08 can replace the BZX84C5V6 in many 5.6V clamping roles due to similar Vz (±5%) and SMD compatibility, but critical differences exist: the ZM4734A-GS08 has a higher power rating (1W vs. 0.3W) and lower dynamic impedance (5Ω typical vs. ~10Ω), offering better transient response. However, its DO-213AB (MELF) package has different thermal and mechanical characteristics than the SOT-23 of the BZX84C5V6—ensure PCB pad compatibility and reflow profile alignment. Most importantly, the ZM4734A-GS08 is AEC-Q101 qualified for automotive use, while the BZX84C5V6 typically isn’t—making the Vishay part preferable in harsh environments, provided board real estate allows for the larger MELF footprint.
What are the risks of using the ZM4734A-GS08 in a high-frequency switching node snubber circuit, given its 5Ω Zzt and DO-213AB parasitic inductance?
Using the ZM4734A-GS08 in high-frequency snubber applications (e.g., >100 kHz) introduces risk due to parasitic inductance in the DO-213AB MELF package, which can cause voltage overshoot and ringing during fast transitions. Although its low Zzt (5Ω max) supports good clamping accuracy, the leaded-style MELF structure has higher loop inductance than chip-scale packages like SOD-123 or DFN. This may compromise snubbing effectiveness and increase EMI. For high-frequency designs, consider low-inductance alternatives such as the Vishay TZM5246BG (SOD-123, 5.6V, 0.5W) or add a parallel ceramic capacitor to mitigate ringing—but validate with oscilloscope testing under actual switching conditions.
How does moisture sensitivity of the ZM4734A-GS08 affect long-term reliability in under-hood automotive applications, and does MSL 1 eliminate all handling concerns?
The ZM4734A-GS08’s MSL 1 (unlimited floor life) rating means it’s highly resistant to moisture absorption and reflow-induced cracking, which is ideal for automotive under-hood environments. However, MSL 1 doesn’t eliminate all reliability risks: prolonged exposure to high humidity and temperature cycling can still degrade the glass passivation or solder joints over time. Combine this with conformal coating and proper PCB layout (avoiding moisture traps) to maximize longevity. Since it’s AEC-Q101 qualified, it has passed rigorous environmental stress tests, but field reliability also depends on system-level protection—don’t rely solely on component ratings without validating the full assembly under mission-profile conditions.
Can I parallel two ZM4734A-GS08 diodes to increase current handling in a 5.6V regulator circuit, and what are the potential failure modes if I do?
Paralleling two ZM4734A-GS08 diodes to share current in a 5.6V regulator is not recommended without active balancing. Due to manufacturing variance in Vz (±5%), one diode may conduct significantly more current than the other, leading to thermal imbalance and eventual thermal runaway of the hotter unit—even though each is rated for 1W. The DO-213AB package’s thermal resistance (junction-to-ambient ~100°C/W typical) exacerbates this under unequal sharing. Instead of paralleling, select a single higher-power Zener like the 1.5W ZM4742A (12V, but available in 5.6V variants) or use a dedicated voltage regulator IC. If paralleling is unavoidable, include small-value ballast resistors (e.g., 1–2Ω, 1W) in series with each diode to force current sharing, and ensure tight thermal coupling on the PCB.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
ZM4734A-GS08 CAD Models
Vishay General Semiconductor - Diodes Division ZM4734A-GS08 PCB symbols & footprints
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