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BZT52B10
Diotec Semiconductor
ZENERDIODE,SOD-123,10V,0.5W,2%
3455 Pcs New Original In Stock
Zener Diode 10 V 500 mW ±2% Surface Mount SOD-123F
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5.0 / 5.0
- (256 Ratings)
BZT52B10
Product Overview
12944100
DiGi Electronics Part Number
BZT52B10-DGManufacturer
Diotec Semiconductor
BZT52B10
Description
ZENERDIODE,SOD-123,10V,0.5W,2%Inventory
3455 Pcs New Original In Stock
Zener Diode 10 V 500 mW ±2% Surface Mount SOD-123F
Quantity
Minimum 1
Minimum 1
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BZT52B10 Technical Specifications
Category
Diodes, Zener, Single Zener Diodes
Packaging
Strip
Series
-
Product Status
Active
Voltage - Zener (Nom) (Vz)
10 V
Tolerance
±2%
Power - Max
500 mW
Impedance (Max) (Zzt)
30 Ohms
Current - Reverse Leakage @ Vr
500 nA @ 6 V
Operating Temperature
-50°C ~ 150°C (TJ)
Mounting Type
Surface Mount
Package / Case
SOD-123F
Supplier Device Package
SOD-123F
Base Product Number
BZT52
Datasheet & Documents
HTML Datasheet
BZT52B10-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Additional Information
Other Names
2721-BZT52B10
Standard Package
30
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
믿음이 가는 서비스와 정직한 가격 정책이 매력적입니다.
Dec 02, 2025
Their efficient stock management reduces our worries about inventory shortages.
Dec 02, 2025
Shipment was prompt, and the product is of very high quality.
Dec 02, 2025
Their customer support was friendly, knowledgeable, and eager to assist, which made my shopping experience fantastic.
Dec 02, 2025
The prices at DiGi Electronics are some of the best I’ve found, especially considering their quality packaging.
Dec 02, 2025
They keep a well-organized inventory that meets our bulk order needs.
Dec 02, 2025
Long-term durability has been consistent, making this a trusted brand for me.
Dec 02, 2025
The durability of their products helps me maintain high standards for my customers.
Dec 02, 2025
The entire purchasing process was seamless thanks to the friendly and knowledgeable customer service representatives.
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Frequently Asked Questions (FAQ)
Can the BZT52B10 be used for precision voltage reference in analog circuits, and how does its dynamic impedance affect stability under varying load conditions?
Yes, the BZT52B10 can serve as a voltage reference in cost-sensitive analog designs, but engineers must account for its 30 Ohm max Zzt (impedance at 5mA test current). At light or fluctuating loads, this impedance can cause output voltage drift due to poor regulation. For improved stability, ensure the BZT52B10 operates within its optimal current range of 5–20mA using a series resistor sized to minimize current variation. Additionally, consider adding a bypass capacitor (e.g., 100nF ceramic) at the cathode to ground to suppress noise and improve transient response in low-frequency reference applications.
What are the thermal design considerations when using the BZT52B10 in a SOD-123F package at maximum 500mW power dissipation?
When operating the BZT52B10 near its 500mW max power in a SOD-123F surface-mount package, thermal performance heavily depends on PCB layout. Without adequate copper heatsinking, the junction temperature can exceed safe limits even below rated power. To mitigate this, use at least 25mm² of 1oz copper trace connected to each pad for natural convection cooling. Avoid placing the BZT52B10 near other heat-generating components, and de-rate power by 4mW/°C above 75°C ambient. For sustained high-power operation, consider a discrete heatsinked zener like the BZX84C10 in a larger package.
Is the BZT52B10 suitable as a direct replacement for the MMBZ5237B in a 10V shunt regulator circuit, and what design impacts should be evaluated?
Yes, the BZT52B10 can replace the MMBZ5237B in 10V regulation applications as both are SOD-123F-packaged 10V ±2% 500mW zeners with comparable Zzt. However, validate the leakage current—BZT52B10 specifies 500nA @ 6V vs. MMBZ5237B’s 100nA—which may affect performance in battery-powered or high-impedance circuits. Also verify bias current: maintain at least 1mA to keep regulation accurate. When substituting, recheck thermal performance and PCB thermal relief compatibility, as Diotec’s thermal resistance may differ slightly from ON Semiconductor’s MMBZ5237B.
How does the BZT52B10 perform in automotive environments with wide temperature swings, and is derating needed for reliability at 150°C junction temperature?
The BZT52B10 supports a junction temperature range of -50°C to 150°C, making it suitable for under-hood automotive applications. However, continuous operation near 150°C accelerates parametric drift and reduces long-term reliability. To ensure robust performance, derate power to 75% of 500mW (i.e., 375mW max) and validate with thermal imaging under real operating conditions. Use in conjunction with an automotive-qualified voltage supervisor or transient protector, as the BZT52B10 itself doesn’t clamp fast transients. Confirm PCB materials (e.g., FR4 with high Tg) support extended temperature operation.
What are the risks of using the BZT52B10 for overvoltage protection in a 9V DC power rail, and how can false triggering or degradation be prevented?
Using the BZT52B10 for overvoltage protection on a 9V rail risks unintended conduction since 10V is close to normal operating voltage—transient spikes or regulator drift could activate the zener unnecessarily, increasing power dissipation. To avoid false triggering, ensure the nominal 9V rail stays below 9.5V under all conditions. For reliable protection, consider a higher-voltage zener like the BZT52B12 (12V) or use the BZT52B10 with a series current-limiting resistor sized to sustain only minimal leakage under normal operation. Monitor temperature rise and avoid direct exposure to high-energy transients; pair with a fuse or resettable PTC to prevent thermal runaway during fault events.
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.
BZT52B10 CAD Models
Diotec Semiconductor BZT52B10 PCB symbols & footprints
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