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onsemi SZMM5Z5V6T5G
- Part No.:
- SZMM5Z5V6T5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z5V6T5G.pdf
- Description:
- DIODE ZENER 5.6V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:23,007
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Product details
Overview
SZMM5Z5V6T5G from onsemi is a 5.6 V ±5% Zener diode in SOD-523 package, rated for 500 mW steady-state power dissipation at 25 °C, with 40 Ω max Zener impedance at 5 mA test current and 1 μA max reverse leakage at 2.8 V, used for precision voltage regulation and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the SZMM5Z5V6T5G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±5%), low-profile SOD-523 footprint (1.20 × 0.80 × 0.60 mm), AEC-Q101 qualification, ESD rating >16 kV HBM, and thermal resistance of 250 °C/W.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to clamp voltage at its nominal Zener voltage (5.6 V) within ±5% tolerance when biased above its knee current (IZK = 1 mA). It exhibits low dynamic impedance (40 Ω max at IZT = 5 mA) and tight temperature coefficient (−2.0 mV/°C) for stable regulation across temperature.
Designed for surface-mount use on FR-4 PCBs, it delivers 500 mW power handling with linear derating above 25 °C (4.0 mW/°C), and meets MSL 1 reflow requirements (260 °C peak). Its 100% matte tin lead finish and Pb-free, RoHS-compliant construction support automated assembly and automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6 V nominal, 5.2–6.0 V range at 5 mA - defines precise clamping threshold for voltage-sensitive circuits |
| Power Dissipation (PD) | 500 mW @ 25 °C - supports continuous regulation in compact battery-powered devices without forced cooling |
| Zener Impedance (ZZT) | 40 Ω max @ 5 mA - ensures minimal output voltage variation under load transients |
| Reverse Leakage (IR) | 1 μA max @ 2.8 V - guarantees low standby current in always-on protection paths |
| ESD Rating | >16 kV per Human Body Model - enables robust handling and operation in handheld ESD-prone environments |
| Temperature Coefficient | −2.0 mV/°C - provides predictable, low-drift voltage reference over −65 to +150 °C operating range |
| Package | SOD-523 (1.20 × 0.80 × 0.60 mm) - fits high-density layouts where board area is constrained to <1 mm² per device |
Pinout & Package
SOD-523 surface-mount package: ultra-compact 2-pin case with cathode marked by polarity band (Pin 1), anode unmarked (Pin 2); body dimensions 1.20 mm × 0.80 mm × 0.60 mm; qualified for 260 °C reflow and MSL 1 handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 (Unmarked End) | Anode | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Qualified | Validated for automotive applications including infotainment power rails and sensor biasing |
| Low Profile SOD-523 | 0.60 mm height enables stacking under shields or placement near tall components |
| High ESD Robustness | Class 3 HBM (>16 kV) eliminates need for external ESD suppressors in USB/IO interfaces |
| Pb-Free & RoHS Compliant | Meets global environmental compliance mandates without compromising solderability or thermal performance |
| Stable Tempco | −2.0 mV/°C enables use in temperature-critical references without external compensation |
Applications
| Smartphone Power Rail Protection | USB Interface Voltage Clamp |
|---|---|
Use Scenario: Protecting 5 V USB VBUS line from transient overvoltage events during hot-plug or ESD discharge. IC Role / Device Role / Timing Role: Two-terminal shunt regulator clamping voltage to 5.6 V before downstream LDO or USB controller ICs. Use Value: Prevents latch-up or damage to USB PHY with 1 μA leakage ensuring no impact on idle bus current budget. | Use Scenario: Stabilizing reference voltage for ADC in portable medical sensors powered by single-cell Li-ion. IC Role / Device Role / Timing Role: Precision Zener reference providing stable 5.6 V bias for analog front-end circuitry. Use Value: −2.0 mV/°C tempco maintains <±10 mV drift over 0–70 °C, enabling accurate sensor readings without calibration. |
| Automotive Infotainment Display Bias | High-Density PC Board Voltage Monitor |
Use Scenario: Supplying regulated bias to OLED display driver ICs in automotive dash clusters exposed to wide ambient temperatures. IC Role / Device Role / Timing Role: AEC-Q101-qualified Zener maintaining stable 5.6 V supply despite engine bay thermal cycling. Use Value: 250 °C/W thermal resistance and −65 to +150 °C rating ensure reliable operation without thermal shutdown. | Use Scenario: Monitoring 5 V system rail integrity in server motherboard VRM feedback loops. IC Role / Device Role / Timing Role: Low-impedance (40 Ω) shunt element detecting overvoltage faults before PMIC triggers reset. Use Value: Fast response to transients due to low capacitance (200 pF @ 0 V) avoids false triggering in high-speed digital systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C5V6 | Same 5.6 V ±5%, but SOD-323 package (1.7 × 1.3 × 0.9 mm) - 42% larger footprint and 0.3 mm taller | Less suitable for ultra-dense layouts; higher thermal resistance (300 °C/W) reduces power margin at elevated ambient | Select only if SOD-323 is already standardized in design and board real estate permits |
| MMSZ5232BT1G | 5.6 V ±5%, SOD-123 package (3.7 × 1.6 × 1.1 mm) - 3.1× larger area, 1.8× taller, 1000 mW rating | Over-specified power handling increases cost and board area; not AEC-Q101 qualified | Prefer only for non-automotive industrial designs requiring higher surge energy absorption |
Compared with BZX584C5V6 and MMSZ5232BT1G, SZMM5Z5V6T5G offers the smallest footprint and lowest profile among 5.6 V Zeners while delivering automotive-grade qualification and optimal thermal performance for space-limited portable and automotive applications.
Availability
SZMM5Z5V6T5G is available at Aetrix Electronics and suitable for smartphone power rail protection, USB interface voltage clamping, and automotive infotainment display bias requiring stable component supply across production lifecycles.
Supply support for SZMM5Z5V6T5G 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 is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
SZMM5Z5V6T5G belongs to the MM5Z/SZMM5Z series of miniature Zener regulators designed specifically for voltage stabilization and overvoltage protection in ultra-compact, high-reliability portable and automotive electronics.
FAQ
What is the Zener voltage tolerance of SZMM5Z5V6T5G?
SZMM5Z5V6T5G has a nominal Zener voltage of 5.6 V with a standard tolerance of ±5%, meaning its actual breakdown voltage falls between 5.2 V and 6.0 V when tested at 5 mA (IZT) and 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the onsemi datasheet (Rev. 19, April 2025), and applies to all units in the SZMM5Z5V6T5G production lot.
Is SZMM5Z5V6T5G qualified for automotive applications?
Yes, SZMM5Z5V6T5G is AEC-Q101 qualified and PPAP capable, as explicitly stated in the "Specification Features" section of the onsemi datasheet. The "SZ" prefix denotes compliance with automotive-specific site and control change requirements, making SZMM5Z5V6T5G suitable for use in automotive infotainment, body electronics, and ADAS subsystems where reliability under thermal and vibration stress is critical.
What is the maximum power dissipation of SZMM5Z5V6T5G at 70 °C ambient?
At 70 °C ambient, SZMM5Z5V6T5G's maximum power dissipation is 320 mW. This is calculated from its 500 mW rating at 25 °C and 4.0 mW/°C derating factor: 500 mW − (70 − 25) × 4.0 mW = 320 mW. This value is specified in the "Maximum Ratings" table (Note 1) and validated on FR-4 boards with 1 cm² copper pad, per the onsemi datasheet.
Does SZMM5Z5V6T5G have a defined polarity marking?
Yes, SZMM5Z5V6T5G uses Style 1 marking per the mechanical outline diagram: Pin 1 (cathode) is identified by a polarity band on the SOD-523 package body, while Pin 2 (anode) is unmarked. This marking is consistent across all SZMM5ZxxxT5G devices and is documented in the "MARKING DIAGRAM" section (page 4) and "MECHANICAL CASE OUTLINE" drawing (ISSUE F, 08 FEB 2024).
What is the reverse leakage current specification for SZMM5V6T5G at 2.8 V?
The reverse leakage current for SZMM5Z5V6T5G is specified as 1 μA maximum at VR = 2.8 V and TA = 25 °C, as listed in the "ELECTRICAL CHARACTERISTICS − Standard Tolerance Series" table on page 3 of the onsemi datasheet. This low leakage ensures minimal quiescent current draw in always-on protection circuits, preserving battery life in portable applications.
SZMM5Z5V6T5G 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:
- ±7.14%
- 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 (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
SZMM5Z5V6T5G FAQ
1.How can I place an order for SZMM5Z5V6T5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z5V6T5G 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 SZMM5Z5V6T5G reliable?
The price and inventory of SZMM5Z5V6T5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z5V6T5G is usually 5 days.
3.What payment methods are accepted for SZMM5Z5V6T5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z5V6T5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z5V6T5G?
SZMM5Z5V6T5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z5V6T5G 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 SZMM5Z5V6T5G?
For technical support, including SZMM5Z5V6T5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z5V6T5G requirements.
6.How does Aetrix verify that SZMM5Z5V6T5G is sourced from the original manufacturer or authorized distributors?
All SZMM5Z5V6T5G 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 SZMM5Z5V6T5G meets industry standards.
7.What is the process for return or replacement of SZMM5Z5V6T5G?
All SZMM5Z5V6T5G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z5V6T5G, 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 SZMM5Z5V6T5G part is unused and in its original packaging.
Return procedure for SZMM5Z5V6T5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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