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onsemi SZMM5Z4689T5G
- Part No.:
- SZMM5Z4689T5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z4689T5G.pdf
- Description:
- DIODE ZENER 5.1V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:7,890
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Product details
Overview
SZMM5Z4689T5G from onsemi is a 5.1 V ±5% Zener voltage regulator diode in SOD−523 package, rated for 500 mW power dissipation at 75°C, with 50 μA test current (IZT), 10 μA reverse leakage at 3 V (IR), and ESD rating >16 kV per HBM. It provides precision low-voltage regulation in space-constrained portable electronics.
For engineers reviewing the SZMM5Z4689T5G datasheet, pinout, applications, or equivalent options, key selection criteria include nominal Zener voltage tolerance, thermal derating behavior, leakage current at operating bias, HBM ESD robustness, and SOD−523 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a two-terminal shunt voltage reference, maintaining stable output voltage across variable load currents via controlled reverse breakdown. Its 5.1 V nominal Zener voltage exhibits a temperature coefficient near 0 mV/°C in the 5–6 V range, minimizing drift over −55°C to +150°C junction temperature.
The SOD−523 package enables automated placement and reflow soldering with 260°C peak temperature tolerance. It is AEC−Q101 qualified, Pb−Free, RoHS compliant, and marked with "4L" for device identification and "M" for date code.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.85 V min / 5.1 V nom / 5.36 V max @ IZT = 50 μA - defines regulated voltage window under standard test conditions |
| Power Dissipation (PD) | 500 mW @ TL = 75°C, derated 4.0 mW/°C above - sets maximum continuous thermal load on FR−5 board |
| Reverse Leakage (IR) | 10 μA max @ VR = 3 V - determines off-state current draw in standby or low-power modes |
| ESD Rating | Class 3 (>16 kV) per Human Body Model - ensures robustness against handling and system-level electrostatic discharge |
| Junction Temp Range | −55°C to +150°C - supports operation in automotive under-hood and industrial ambient environments |
| Package | SOD−523 (1.20 × 0.80 × 0.60 mm) - enables <0.96 mm² board area usage for ultra-compact designs |
Pinout & Package
SOD−523 surface-mount package with cathode indicated by polarity band; case dimensions 1.20 mm × 0.80 mm × 0.60 mm; void-free thermosetting plastic body; UL 94 V−0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage rail; reverse-biased terminal during Zener operation |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential reference; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| Low-leakage regulation | 10 μA IR @ 3 V enables micro-power hold-up and battery-backed circuits without excessive drain |
| Automated assembly optimized | SOD−523 footprint and polarity marking support high-yield pick-and-place and reflow processes |
| High ESD immunity | Class 3 HBM (>16 kV) reduces need for external protection in handheld and wearable interfaces |
| AEC−Q101 qualified | Validated for automotive applications including infotainment power rails and sensor bias networks |
Applications
| Smartphone Power Management | Wearable Sensor Biasing |
|---|---|
Use Scenario: Regulating reference voltage for PMIC LDO feedback or battery fuel gauge ICs in sub-10 mm² modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 5.1 V node for analog monitoring circuitry. Use Value: Tight 5% VZ tolerance and low 10 μA leakage preserve battery life while ensuring ADC accuracy within ±1 LSB. |
Use Scenario: Supplying precise bias to MEMS accelerometers and optical heart-rate sensors in fitness bands. IC Role / Device Role / Timing Role: Low-current Zener clamp establishing clean 5.1 V reference for analog front-end signal conditioning. Use Value: SOD−523 size fits 2.0 × 1.6 mm sensor module footprints; HBM >16 kV prevents ESD-induced calibration drift. |
| Automotive Cabin Control Panel | Industrial IoT Edge Node |
Use Scenario: Stabilizing 5 V supply for touch controller ICs and LED driver logic in dashboard displays. IC Role / Device Role / Timing Role: Overvoltage protection and voltage clamping element in 12 V input power stage. Use Value: AEC−Q101 qualification ensures reliability across −40°C to +85°C ambient; 150°C TJ rating supports under-glass mounting. |
Use Scenario: Providing local 5.1 V reference for isolated RS-485 transceiver bias and microcontroller reset supervision. IC Role / Device Role / Timing Role: Precision shunt regulator for brown-out detection and analog sensor excitation. Use Value: −55°C to +150°C operating range supports deployment in uncontrolled outdoor enclosures; RoHS/Pb−Free compliance meets EU industrial directives. |
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-C5V1 | 5.1 V ±5%, SOD-323 package (1.7 × 1.3 mm), 300 mW rating, 100 nA IR @ 1 V | Lower leakage but larger footprint and reduced power handling | Select when ultra-low standby current dominates over board area constraints |
| MMSZ4689T1G | 5.1 V ±5%, SOD-123 package (3.7 × 1.6 mm), 500 mW rating, 10 μA IR @ 3 V, same Zener curve | Same electrical specs but 3× larger footprint; not suitable for ultra-dense layouts | Select when legacy SOD-123 layout reuse is required and space is available |
Compared with BZX584-C5V1 and MMSZ4689T1G, SZMM5Z4689T5G delivers identical 5.1 V regulation with matching leakage and power rating, but achieves it in the smallest industry-standard footprint-critical for next-generation wearables and miniaturized automotive modules where every 0.5 mm² matters.
Availability
SZMM5Z4689T5G is available at Aetrix Electronics and suitable for smartphone power management, wearable sensor biasing, and automotive cabin control panels requiring stable component supply with AEC−Q101 assurance and RoHS compliance.
Supply support for SZMM5Z4689T5G 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 MM5Z4xxx/SZMM5Z4xxx series was designed specifically for space-constrained voltage regulation in portable and automotive electronics, emphasizing ultra-small packaging, high ESD resilience, and AEC−Q101 reliability.
FAQ
What is the exact Zener voltage tolerance of SZMM5Z4689T5G?
The SZMM5Z4689T5G has a guaranteed Zener voltage range of 4.85 V (minimum) to 5.36 V (maximum) at IZT = 50 μA and TA = 25°C, corresponding to a ±5% tolerance around the nominal 5.1 V value. This tolerance remains valid across its full operating temperature range of −55°C to +150°C, as confirmed in the onsemi Electrical Characteristics table on page 3 of the datasheet.
Is SZMM5Z4689T5G suitable for automotive applications?
Yes, SZMM5Z4689T5G is explicitly qualified to AEC−Q101 standards and designated with the "SZ" prefix to indicate compliance for automotive and other high-reliability applications. It supports PPAP documentation and is rated for junction temperatures up to +150°C, making it appropriate for cabin control modules, infotainment systems, and sensor interfaces in modern vehicles.
What is the maximum reverse leakage current for SZMM5Z4689T5G at 3 V?
The maximum reverse leakage current (IR) for SZMM5Z4689T5G is 10 μA when biased at VR = 3 V and measured at TA = 25°C, as specified in the Electrical Characteristics table on page 3 of the onsemi datasheet. This low leakage supports extended battery life in always-on portable devices.
Does SZMM5Z4689T5G have an ESD rating, and if so, what is it?
SZMM5Z4689T5G carries an ESD rating of Class 3 per the Human Body Model (HBM), exceeding 16 kV. This is documented in the Features section of the onsemi datasheet and verified through standardized testing, enabling direct integration into ESD-prone interfaces like USB ports and display connectors without additional protection components.
What is the thermal derating behavior of SZMM5Z4689T5G above 75°C?
SZMM5Z4689T5G is rated for 500 mW total power dissipation at TL = 75°C on FR−5 board, with linear derating of 4.0 mW/°C above that temperature. This means at 100°C board temperature, its usable power drops to 400 mW, and at 125°C, to 300 mW-critical for thermal design in sealed enclosures or high-ambient environments.
SZMM5Z4689T5G 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):
- 5.1 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 3 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
SZMM5Z4689T5G FAQ
1.How can I place an order for SZMM5Z4689T5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z4689T5G 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 SZMM5Z4689T5G reliable?
The price and inventory of SZMM5Z4689T5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z4689T5G is usually 5 days.
3.What payment methods are accepted for SZMM5Z4689T5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z4689T5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z4689T5G?
SZMM5Z4689T5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z4689T5G 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 SZMM5Z4689T5G?
For technical support, including SZMM5Z4689T5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z4689T5G requirements.
6.How does Aetrix verify that SZMM5Z4689T5G is sourced from the original manufacturer or authorized distributors?
All SZMM5Z4689T5G 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 SZMM5Z4689T5G meets industry standards.
7.What is the process for return or replacement of SZMM5Z4689T5G?
All SZMM5Z4689T5G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z4689T5G, 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 SZMM5Z4689T5G part is unused and in its original packaging.
Return procedure for SZMM5Z4689T5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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