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onsemi SZMM5Z5V6T1G
- Part No.:
- SZMM5Z5V6T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z5V6T1G.pdf
- Description:
- DIODE ZENER 5.6V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:354
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Product details
Overview
SZMM5Z5V6T1G from onsemi is a 5.6 V, ±5% tolerance Zener diode in SOD-523 package, rated for 500 mW steady-state power dissipation at 25 °C, with 40 Ω maximum Zener impedance at 5 mA test current and 1 μA reverse leakage at 2.5 V, used for precision voltage regulation and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the SZMM5Z5V6T1G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±5%), low-profile SOD-523 footprint (1.20 mm × 0.80 mm), AEC-Q101 qualification for automotive use, ESD robustness (>16 kV HBM), and thermal derating behavior above 25 °C.
Technical Context
This device operates as a two-terminal voltage reference by exploiting controlled reverse breakdown in a silicon PN junction. It maintains stable 5.6 V regulation across 1 mA to 5 mA Zener test currents, with temperature coefficient of −2.0 mV/°C and capacitance of 200 pF at 0 V bias and 1 MHz.
The SOD-523 package enables surface-mount integration on high-density PCBs, with MSL 1 reflow compatibility up to 260 °C and Pb-free matte tin lead finish. Its cathode-anode polarity is marked by a band on terminal 1, consistent with JEDEC standard orientation for discrete diodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6 V nominal, 5.2–6.0 V range at IZT = 5 mA - defines regulated output voltage under typical operating conditions |
| Tolerance | ±5% - ensures predictable clamping level for protection circuits without post-production trimming |
| Power Rating | 500 mW at TA = 25 °C, derates 4.0 mW/°C above - sets maximum continuous dissipation on FR-4 board |
| Zener Impedance | 40 Ω max at IZT = 5 mA - determines regulation accuracy under load transients |
| Reverse Leakage | 1 μA max at VR = 2.5 V - minimizes standby current in battery-powered systems |
| ESD Rating | >16 kV per Human Body Model - supports robust handling in assembly and end-use environments |
| Temperature Coefficient | −2.0 mV/°C - quantifies voltage drift with ambient temperature change |
Pinout & Package
Package: SOD-523 (Case 502, Style 1), dimensions 1.20 mm × 0.80 mm × 0.60 mm, cathode marked with band on Terminal 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded) | Cathode | Connected to regulated voltage node; reverse-biased during Zener operation |
| 2 | Anode | Connected to ground or lower-potential reference; completes conduction path during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Qualified | Validated for automotive applications including engine control modules and infotainment power rails |
| SZ Prefix Compliance | Meets unique site and control change requirements for automotive-grade traceability and PPAP submission |
| Low-Profile SOD-523 | Enables placement on 0.5 mm pitch PCBs and within tight mechanical envelopes like smartphone camera modules |
| RoHS & Pb-Free | Matte tin lead finish meets EU RoHS Directive 2011/65/EU and J-STD-609 Category 1a |
| MSL 1 Rating | Unlimited floor life and compatible with standard reflow profiles up to 260 °C peak temperature |
Applications
| USB Port Overvoltage Protection | Automotive Infotainment Power Rail Clamp |
|---|---|
Use Scenario: Clamps transient surges on USB 2.0 VBUS line during hot-plug or ESD events. IC Role / Device Role / Timing Role: Zener clamp placed between VBUS and GND to shunt excess energy before it reaches downstream USB controller ICs. Use Value: 5.6 V breakdown prevents damage to 5 V tolerant PHY layers while maintaining signal integrity during normal operation. | Use Scenario: Protects display backlight driver ICs from load-dump transients in 12 V automotive infotainment systems. IC Role / Device Role / Timing Role: Standby Zener regulator referenced to chassis ground, activated only during >14 V overvoltage events. Use Value: −2.0 mV/°C tempco ensures stable clamping across −40 °C to +125 °C ambient, critical for dashboard reliability. |
| Smartphone Battery Charger Feedback Divider | Industrial Sensor Signal Conditioning Reference |
Use Scenario: Provides stable 5.6 V reference for feedback network in buck converter charging ICs. IC Role / Device Role / Timing Role: Precision voltage reference in resistor divider that sets output voltage of switching charger controller. Use Value: ±5% tolerance and 40 Ω ZZT enable <±1% output voltage accuracy without calibration in compact phone PCB layouts. | Use Scenario: Supplies stable bias voltage to op-amp input stage in 4–20 mA loop transmitter front-end. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage reference for analog signal conditioning circuitry. Use Value: 200 pF capacitance and 1 μA leakage minimize loading effects on high-impedance sensor inputs in 24 V industrial field devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C5V6LT1G | Same 5.6 V nominal, ±5% tolerance, but SOD-323 package (1.7 mm × 1.3 mm) - 42% larger footprint | Higher thermal resistance (RJA = 300 °C/W vs. 250 °C/W) limits power handling in confined layouts | Select when legacy SOD-323 land pattern exists and board rework is impractical |
| MMSZ5232BT1G | 5.6 V nominal, ±5%, but SOD-123 package (3.7 mm × 1.6 mm) - 3.1× larger area than SOD-523 | Rated for 500 mW but higher ZZT (60 Ω) reduces regulation precision under dynamic loads | Prefer for cost-sensitive industrial designs where size is secondary to procurement availability |
Compared with BZX584C5V6LT1G and MMSZ5232BT1G, SZMM5Z5V6T1G delivers identical voltage regulation performance in the smallest possible footprint, enabling higher PCB density and improved thermal response in automotive and portable applications where space and reliability are co-constrained.
Availability
SZMM5Z5V6T1G is available at Aetrix Electronics and suitable for USB protection, automotive infotainment clamping, and smartphone battery charger feedback requiring stable component supply with AEC-Q101 compliance and long-term lifecycle support.
Supply support for SZMM5Z5V6T1G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MM5Z/SZMM5Z series was designed specifically for ultra-compact voltage regulation and transient suppression in portable and automotive electronics, prioritizing low profile, high ESD immunity, and AEC-Q101 qualification.
FAQ
What is the Zener voltage tolerance of SZMM5Z5V6T1G?
The SZMM5Z5V6T1G has a specified Zener voltage tolerance of ±5% at IZT = 5 mA, meaning its breakdown voltage falls within 5.2 V to 6.0 V under standard test conditions. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the official onsemi datasheet (Rev. 19, April 2025). The SZMM5Z5V6T1G maintains this specification across its qualified operating temperature range.
Is SZMM5Z5V6T1G suitable for automotive applications?
Yes, SZMM5Z5V6T1G is explicitly qualified to AEC-Q101 standards and designated with the "SZ" prefix, indicating compliance with automotive-specific site and process controls, PPAP capability, and enhanced traceability. Its guaranteed operation from −65 °C to +150 °C junction temperature and >16 kV HBM ESD rating make it appropriate for under-hood and cabin electronics where reliability under thermal and electrical stress is critical.
What is the maximum power dissipation of SZMM5Z5V6T1G on a standard FR-4 board?
SZMM5Z5V6T1G has a maximum steady-state power dissipation of 500 mW at ambient temperature (TA) = 25 °C on an FR-4 board with a 1 cm² copper pad. Above 25 °C, it derates linearly at 4.0 mW/°C, reaching zero dissipation at approximately 150 °C ambient. This derating curve is documented in Figure 1 of the onsemi datasheet and reflects real-world thermal performance on typical PCB layouts.
Does SZMM5Z5V6T1G have a defined polarity marking, and how is it oriented?
Yes, SZMM5Z5V6T1G uses Style 1 marking per the SOD-523 mechanical drawing: Terminal 1 is the cathode and is identified by a visible polarity band. Terminal 2 is the anode. This orientation is standardized across all onsemi SOD-523 Zener diodes and matches JEDEC MO-203-AB packaging conventions for unidirectional voltage regulation devices.
What is the Zener impedance of SZMM5Z5V6T1G, and why does it matter?
SZMM5Z5V6T1G has a maximum Zener impedance (ZZT) of 40 Ω at IZT = 5 mA. This parameter directly affects regulation stability: lower ZZT means smaller output voltage variation under changing load current, which is essential for precision clamping in sensitive analog circuits and feedback networks where even millivolt-level shifts impact system accuracy.
SZMM5Z5V6T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±7%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
SZMM5Z5V6T1G FAQ
1.How can I place an order for SZMM5Z5V6T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z5V6T1G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SZMM5Z5V6T1G reliable?
The price and inventory of SZMM5Z5V6T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z5V6T1G is usually 5 days.
3.What payment methods are accepted for SZMM5Z5V6T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z5V6T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z5V6T1G?
SZMM5Z5V6T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z5V6T1G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SZMM5Z5V6T1G?
For technical support, including SZMM5Z5V6T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z5V6T1G requirements.
6.How does Aetrix verify that SZMM5Z5V6T1G is sourced from the original manufacturer or authorized distributors?
All SZMM5Z5V6T1G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SZMM5Z5V6T1G meets industry standards.
7.What is the process for return or replacement of SZMM5Z5V6T1G?
All SZMM5Z5V6T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z5V6T1G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SZMM5Z5V6T1G part is unused and in its original packaging.
Return procedure for SZMM5Z5V6T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZMM5Z5V6T1G Tags
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