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Home Products Discrete Semiconductor Products Diodes - Zener - Single~~SZMMBZ5232BLT3G~~

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SZMMBZ5232BLT3G - onsemi

Name: onsemi SZMMBZ5232BLT3G
Brand: onsemi
SKU: SZMMBZ5232BLT3G
Price: 0.012 USD
Availability: InStock
Rating: 5 (7 reviews)

Manufacturer Part Number: SZMMBZ5232BLT3G

Manufacturer: onsemi

Allelco Part Number: 98D-SZMMBZ5232BLT3G

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 17,950 pcs available, New & Original

Parts Description: DIODE ZENER 5.6V 225MW SOT23-3

Package: SOT-23-3 (TO-236)

Data sheet: SZMMBZ5232BLT3G.pdf

Datasheets
MMBZ/SZMMBZ52xxBLT1G Series.pdf

PCN Assembly/Origin
Mult Devices Mold Compound 25/Apr/2018.pdf

PCN Design/Specification
SOT23 27/Sep/2016.pdf

Environmental Information
onsemi REACH.pdf onsemi RoHS.pdf

RoHs Status: ROHS3 Compliant

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In stock: 17950

Unit Price: $0.023
Subtotal: $0.00

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Quantity	Unit Price	Ext. Price
10+	$0.023	$0.23
100+	$0.018	$1.80
300+	$0.016	$4.80
1000+	$0.014	$14.00
5000+	$0.012	$60.00
10000+	$0.012	$120.00

The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

SZMMBZ5232BLT3G Tech Specifications
onsemi - SZMMBZ5232BLT3G technical specifications, attributes, parameters and parts with similar specifications to onsemi - SZMMBZ5232BLT3G

Product Attribute	Attribute Value
Manufacturer	onsemi
Voltage - Zener (Nom) (Vz)	5.6 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA
Tolerance	±5%
Supplier Device Package	SOT-23-3 (TO-236)
Series	Automotive, AEC-Q101
Power - Max	225 mW

Product Attribute	Attribute Value
Package / Case	TO-236-3, SC-59, SOT-23-3
Package	Tape & Reel (TR)
Operating Temperature	-65°C ~ 150°C
Mounting Type	Surface Mount
Impedance (Max) (Zzt)	11 Ohms
Current - Reverse Leakage @ Vr	5 µA @ 3 V
Base Product Number	SZMMBZ5232

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99

Frequently Asked Questions(FAQ)

What is the typical Zener impedance and how does it influence voltage regulation performance for the SZMMBZ5232BLT3G in low-current applications?: The SZMMBZ5232BLT3G exhibits a maximum Zener impedance (Zzt) of 11 ohms, which directly affects dynamic resistance during regulation. At higher operating currents near the rated 225 mW limit, this impedance contributes to a slight droop in output voltage under load changes. In precision voltage reference circuits, such as battery monitoring or sensor biasing, designers should anticipate a small increase in output ripple when sourcing less than 1 mA due to increased relative impact of Zzt. This parameter becomes critical when cascading multiple regulation stages or implementing feedback networks where stability margins depend on Zener linearity.

How does the reverse leakage current specification affect long-term reliability in automotive-grade power management systems using the SZMMBZ5232BLT3G?: With a maximum reverse leakage current of 5 µA at 3 V, the SZMMBZ5232BLT3G introduces minimal static power loss across its rated breakdown voltage range. Over time, especially in thermally stressed environments common in automotive underhood applications, this leakage remains stable within datasheet bounds thanks to AEC-Q101 qualification. While not negligible in ultra-low-power designs, this level is typically acceptable in bias networks where quiescent current dominates system efficiency. However, in high-impedance node protection circuits, even 5 µA can cause measurable voltage shifts if not accounted for during layout and decoupling strategies.

Can the SZMMBZ5232BLT3G be used interchangeably with general-purpose Zener diodes like the BZX79 series without affecting thermal performance?: No, the SZMMBZ5232BLT3G cannot be universally substituted with standard Zeners such as the BZX79 due to differences in power dissipation, package thermal mass, and qualification pedigree. Although both operate at 5.6 V, the TO-236-3 package of the SZMMBZ5232BLT3G offers superior solder joint reliability and junction-to-ambient thermal characteristics compared to through-hole variants. Additionally, its automotive-grade AEC-Q101 compliance ensures consistent behavior across temperature extremes—critical for mission-critical systems. Using a non-qualified part may introduce failure modes unaccounted for during system-level validation.

What is the maximum allowable continuous forward current for the SZMMBZ5232BLT3G when used in signal clamping applications?: The SZMMBZ5232BLT3G has a maximum forward voltage drop (Vf) of 900 mV at 10 mA, indicating that while it can conduct in forward bias, it is not designed for sustained conduction. In clamping scenarios where transient currents briefly exceed 10 mA, the device must be derated according to power limits. Assuming worst-case ambient conditions and no heatsinking, the absolute maximum average forward current should not exceed approximately 30–50 mA to prevent junction overheating, given the 225 mW power rating and typical thermal resistance values for the SOT-23-3 package.

How does the ±5% tolerance of the SZMMBZ5232BLT3G impact calibration accuracy in analog front-end designs?: The ±5% variation in Zener voltage (5.6 V nominal) implies a possible deviation between 5.32 V and 5.88 V across production lots. For precision analog systems requiring tight reference voltages—such as ADC biasing or comparator thresholds—this variability necessitates either post-calibration trimming or selection of tighter-tolerance alternatives. In applications where multiple references share a common ground, mismatch errors may arise if adjacent components have opposing tolerance corners. Therefore, designers must consider statistical binning or test-based screening to ensure consistent performance across units, particularly in medical or industrial instrumentation.

Is the SZMMBZ5232BLT3G suitable for use in overvoltage protection circuits handling surge events above 10 V?: No, the SZMMBZ5232BLT3G is optimized for precise voltage regulation around its 5.6 V breakdown point and lacks surge energy handling capability required for transient suppression above 10 V. Its primary role is reference or clamping at nominal voltage levels, not absorption of high-energy transients. Attempting to use it in such roles risks catastrophic failure due to excessive power dissipation beyond 225 mW. Instead, dedicated TVS diodes or crowbar circuits should protect sensitive loads, while the SZMMBZ5232BLT3G serves only in secondary regulation or bias stabilization roles after initial surge mitigation.

How does moisture sensitivity level (MSL) = 1 benefit PCB assembly processes involving the SZMMBZ5232BLT3G?: With an MSL rating of 1, the SZMMBZ5232BLT3G is considered moisture-insensitive and can withstand unlimited exposure to ambient humidity prior to reflow soldering without requiring bake-out procedures. This simplifies supply chain logistics and reduces handling constraints in high-volume manufacturing environments, particularly in automotive production lines where Just-In-Time delivery and rapid changeovers are common. It also eliminates the need for dry packaging storage unless extended lead times are involved, improving overall yield and reducing logistical overhead during mass deployment.

What are the key differences between the SZMMBZ5232BLT3G and its base product number SZMMBZ5232 when selecting for automotive ECU designs?: The SZMMBZ5232BLT3G includes a T3 suffix denoting tape-and-reel packaging optimized for automated pick-and-place assembly, whereas the base part SZMMBZ5232 typically refers to cut tape or tube format. Both share identical electrical specifications and AEC-Q101 qualification, ensuring equivalent reliability in harsh environments. However, the reel format reduces manual handling errors and improves throughput in surface-mount production lines—critical for scalable automotive electronics manufacturing. When integrating into ECU modules, engineers must verify feeder compatibility and ensure procurement aligns with assembly line capabilities to maintain process integrity.

Parts with Similar Specifications

The three parts on the right have similar specifications to onsemi SZMMBZ5232BLT3G

Product Attribute
Part Number	SZMMBZ5231BLT3G	SZMMBZ5234BLT3G	SZMMBZ5232BLT1G	SZMMBZ5232BLT3
Manufacturer	onsemi	onsemi	onsemi	onsemi
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Current - Reverse Leakage @ Vr	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Impedance (Max) (Zzt)	-	-	-	-
Power - Max	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Voltage - Zener (Nom) (Vz)	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Series	-	-	-	-
Tolerance	-	-	-	-
Voltage - Forward (Vf) (Max) @ If	-	-	-	-

SZMMBZ5232BLT3G Datasheet PDF

Download SZMMBZ5232BLT3G pdf datasheets and onsemi documentation for SZMMBZ5232BLT3G - onsemi.

Datasheets: MMBZ/SZMMBZ52xxBLT1G Series.pdf
PCN Assembly/Origin: Mult Devices Mold Compound 25/Apr/2018.pdf
PCN Design/Specification: SOT23 27/Sep/2016.pdf
Environmental Information: onsemi REACH.pdf onsemi RoHS.pdf

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

Use your express account for shipment if you have one.
Use our account for the shipment. Refer to the table below for the approximate charges.

(Different time frame / countries / package size has different price.)

Delivery Method

Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

Note:: The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

QC (Quality Warranty)
Payment Support
Packaging
Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.

Strict quality inspection builds a solid foundation for electronic component quality.

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Standardized full-process testing
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We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.

Quality Inspection

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Contact us if you have any questions.

Phone: +00852 9146 4856
Email: info@allelco.com

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.

ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification

ISO 9001: 2015
ISO 13485: 2016
ISO 14001: 2015
ISO 28000: 2007
ISO 45001: 2018
GB/T 27922-2011

SMTA
IPC
ESD
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