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onsemi SZMM5Z4699T5G
- Part No.:
- SZMM5Z4699T5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z4699T5G.pdf
- Description:
- DIODE ZENER 12V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:7,948
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Product details
Overview
SZMM5Z4699T5G from onsemi is a 12 V nominal Zener voltage regulator diode in SOD−523 package, rated for 500 mW power dissipation at TL = 75°C, with 50 µA test current (IZT), 0.05 µA reverse leakage at 9.1 V (VR), and AEC−Q101 qualification for automotive applications such as ECU voltage clamping and sensor biasing.
For engineers reviewing the SZMM5Z4699T5G datasheet, pinout, applications, or equivalent options, key selection criteria include its 12 V ±5% Zener tolerance, low 0.05 µA leakage at VR = 9.1 V, −55°C to +150°C operating range, SOD−523 footprint compatibility, and Class 3 (>16 kV) HBM ESD rating.
Technical Context
This device operates as a precision shunt voltage reference, maintaining stable regulation via controlled reverse-biased Zener breakdown. Its thermal resistance (RJA = 250°C/W) and derating curve define safe power handling across ambient temperatures up to +75°C before linear derating begins.
The SZMM5Z4699T5G exhibits a positive temperature coefficient near 12 V (≈+3.5 mV/°C per Figure 1), enabling predictable drift compensation in bias networks. Its 1.20 × 0.80 × 0.60 mm SOD−523 case supports high-density automated placement while meeting UL 94 V−0 flammability and Pb−free RoHS compliance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11.4–12.6 V @ IZT = 50 µA - tight 12 V nominal regulation window suitable for 12 V rail protection and reference generation. |
| Power Dissipation (PD) | 500 mW on FR−5 board @ TL = 75°C - defines maximum continuous clamp energy without thermal runaway in compact layouts. |
| Reverse Leakage (IR) | 0.05 µA @ VR = 9.1 V - ultra-low standby current critical for battery-powered sensor nodes and always-on circuits. |
| ESD Rating | Class 3 (>16 kV) HBM - enables direct integration into exposed I/O lines without external ESD protection in automotive modules. |
| Operating Temperature | −55°C to +150°C - validated for under-hood automotive environments and industrial control enclosures. |
| Package | SOD−523 (1.20 × 0.80 × 0.60 mm) - industry-standard ultra-small footprint compatible with 0201 reflow profiles and pick-and-place equipment. |
Pinout & Package
SOD−523 surface-mount package with cathode indicated by polarity band; 2-terminal construction optimized for space-constrained PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage node; reverse-bias terminal where Zener breakdown occurs at VZ. |
| 2 (Non-banded End) | Anode | Connected to circuit ground or lower-potential reference; completes current path during regulation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC−Q101 qualified | Validated for automotive electronics including engine control units and ADAS sensor interfaces requiring zero-failure reliability. |
| Low IZT = 50 µA | Enables stable regulation with minimal bias current-ideal for low-power IoT sensors and wearable devices. |
| Pb−free & RoHS compliant | Meets global environmental regulations and supports lead-free reflow soldering at 260°C for 10 seconds. |
| UL 94 V−0 flammability | Ensures flame resistance in safety-critical applications like EV battery management systems and industrial PLCs. |
Applications
| Automotive ECU Voltage Clamping | Portable Sensor Bias Reference |
|---|---|
Use Scenario: Protecting microcontroller I/O pins and CAN transceiver inputs from load-dump transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Shunt voltage clamp absorbing surge energy above 12 V while holding downstream nodes below damage threshold. Use Value: Prevents latch-up and gate oxide rupture in automotive MCUs using only 0.6 mm height clearance and no external components. |
Use Scenario: Providing stable 12 V reference for analog front-ends in battery-operated gas sensors and environmental monitors. IC Role / Device Role / Timing Role: Precision voltage reference source with <0.05 µA leakage ensuring multi-year battery life in always-on sensing modes. Use Value: Eliminates need for active regulators or LDOs in ultra-low-power designs, reducing BOM count and quiescent current. |
| High-Density PC Board Protection | Industrial PLC Input Conditioning |
Use Scenario: ESD and overvoltage protection on densely routed PCBs in telecom baseband modules and FPGA carrier boards. IC Role / Device Role / Timing Role: Primary transient suppressor placed directly at connector interface to divert fast HBM events (>16 kV). Use Value: Achieves Class 3 ESD immunity in sub-1 mm² area-replacing larger SOIC or SOT-23 solutions without sacrificing robustness. |
Use Scenario: Stabilizing 12 V supply rails feeding optocoupler inputs and analog signal conditioners in factory automation controllers. IC Role / Device Role / Timing Role: Low-drift voltage reference maintaining accuracy across −40°C to +85°C ambient operating range. Use Value: Ensures consistent logic thresholds and ADC reference stability despite thermal cycling in uncooled control cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C12 | Same 12 V nominal, but SOD-323 package (1.7 × 1.3 mm); higher 1 µA leakage at 9.1 V; not AEC−Q101 qualified. | Targeted at commercial-grade portable electronics-not automotive or industrial harsh environments. | Select when cost sensitivity outweighs automotive qualification and ultra-low leakage requirements. |
| MMSZ4699T1G | Identical electrical specs and SOD−523 package, but standard MM5Z prefix (non-SZ); lacks PPAP capability and site-specific control traceability. | Suitable for non-automotive industrial and consumer applications where AEC−Q101 and PPAP are not mandated. | Choose for general-purpose 12 V regulation where full automotive change control is unnecessary. |
Compared with BZX584-C12 and MMSZ4699T1G, the SZMM5Z4699T5G uniquely delivers AEC−Q101 qualification, 0.05 µA leakage, and PPAP support-making it the only option for safety-critical automotive voltage clamping where regulatory auditability and ultra-low standby current are mandatory.
Availability
SZMM5Z4699T5G is available at Aetrix Electronics and suitable for automotive ECUs, portable sensor modules, and high-density telecom PCBs requiring stable component supply, long-term lifecycle assurance, and AEC−Q101-compliant sourcing.
Supply support for SZMM5Z4699T5G 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 silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The MM5Z/SZMM5Z series was engineered specifically for space-constrained voltage regulation and ESD protection in automotive and portable electronics, emphasizing ultra-small packaging, low leakage, and AEC−Q101 reliability.
FAQ
What is the Zener voltage tolerance of SZMM5Z4699T5G?
The SZMM5Z4699T5G has a Zener voltage range of 11.4 V to 12.6 V at IZT = 50 µA, corresponding to a ±5% tolerance around the 12 V nominal value. This specification is measured under thermal equilibrium conditions at TL = 30°C ±1°C and is guaranteed across the full −55°C to +150°C operating temperature range. The SZMM5Z4699T5G datasheet confirms this tolerance in Table 3 on page 3.
Is SZMM5Z4699T5G suitable for automotive applications?
Yes, SZMM5Z4699T5G is explicitly qualified to AEC−Q101 and supports PPAP documentation, making it approved for automotive use cases including engine control units, body electronics, and ADAS sensor interfaces. The "SZ" prefix denotes automotive-grade process controls, unique site traceability, and enhanced reliability testing beyond standard commercial Zeners like the MM5Z4699T5G.
What is the maximum power dissipation for SZMM5Z4699T5G on FR-5 board?
SZMM5Z4699T5G is rated for 500 mW total power dissipation on FR-5 board at lead temperature (TL) = 75°C, with linear derating of 4.0 mW/°C above that temperature. This rating assumes use of the minimum recommended footprint per onsemi's mechanical drawings and accounts for thermal resistance (RJA = 250°C/W) measured via infrared scan method.
Does SZMM5Z4699T5G have ESD protection capability?
Yes, SZMM5Z4699T5G is rated Class 3 (>16 kV) per Human Body Model (HBM), verified per JESD22-A114. This ESD robustness allows direct placement on I/O lines subject to handling and system-level transients without requiring additional discrete ESD suppressors-particularly valuable in automotive infotainment and telematics modules.
What is the reverse leakage current specification for SZMM5Z4699T5G?
SZMM5Z4699T5G specifies a maximum reverse leakage current (IR) of 0.05 µA at VR = 9.1 V and TA = 25°C. This ultra-low leakage enables reliable operation in battery-powered applications where standby current must be minimized-such as wireless sensor nodes and always-on monitoring circuits.
SZMM5Z4699T5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- SZMM5Z4xxxTxG
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 12 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 50 nA @ 9.1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
SZMM5Z4699T5G FAQ
1.How can I place an order for SZMM5Z4699T5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z4699T5G 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 SZMM5Z4699T5G reliable?
The price and inventory of SZMM5Z4699T5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z4699T5G is usually 5 days.
3.What payment methods are accepted for SZMM5Z4699T5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z4699T5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z4699T5G?
SZMM5Z4699T5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z4699T5G 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 SZMM5Z4699T5G?
For technical support, including SZMM5Z4699T5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z4699T5G requirements.
6.How does Aetrix verify that SZMM5Z4699T5G is sourced from the original manufacturer or authorized distributors?
All SZMM5Z4699T5G 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 SZMM5Z4699T5G meets industry standards.
7.What is the process for return or replacement of SZMM5Z4699T5G?
All SZMM5Z4699T5G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z4699T5G, 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 SZMM5Z4699T5G part is unused and in its original packaging.
Return procedure for SZMM5Z4699T5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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