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onsemi SZMM5Z7V5T1G
- Part No.:
- SZMM5Z7V5T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z7V5T1G.pdf
- Description:
- DIODE ZENER 7.5V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:7,402
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Product details
Overview
SZMM5Z7V5T1G from onsemi is a 7.5 V ±5% Zener voltage regulator diode in SOD-523 package, rated for 500 mW steady-state power dissipation at 25 °C, with 15 Ω maximum Zener impedance at 5 mA test current and 1 µA reverse leakage at 5.0 V, used for precision voltage reference and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the SZMM5Z7V5T1G datasheet, pinout, applications, or equivalent options, key selection factors include Zener voltage tolerance (±5%), thermal resistance (250 °C/W), ESD rating (>16 kV HBM), AEC-Q101 qualification, and SOD-523 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable output voltage across its cathode-anode terminals under reverse bias when current exceeds the knee point (IZK = 1 mA). Its low 15 Ω dynamic impedance ensures minimal voltage variation with load current changes within its 500 mW power limit.
Designed for surface-mount assembly on FR-4 boards, it features Pb-free matte tin plating, MSL 1 moisture sensitivity, and 260 °C reflow compatibility. The −65 °C to +150 °C junction temperature range supports operation in automotive and industrial environments where thermal cycling is present.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 7.5 V nominal, 7.0–7.9 V min/max at IZT = 5 mA - defines regulated voltage accuracy for reference or clamping |
| Power Dissipation | 500 mW at TA = 25 °C - sets maximum continuous power handling before thermal derating begins |
| Zener Impedance | 15 Ω max at IZT = 5 mA - determines output voltage stability under varying load current |
| Reverse Leakage | 1 µA max at VR = 5.0 V - ensures low standby current in voltage-sensing or battery-backed circuits |
| ESD Rating | Class 3 (>16 kV) per HBM - provides robustness against electrostatic discharge during handling and assembly |
| Operating Temp | −65 °C to +150 °C - enables use in under-hood automotive or industrial control applications |
| AEC-Q101 | Qualified - confirms reliability for automotive electronic systems requiring stress-tested components |
Pinout & Package
SOD-523 package: 1.20 mm × 0.80 mm body, 0.70 mm height, void-free thermosetting plastic case with UL 94 V-0 rating and 100% matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode | Connected to ground or lower-potential reference; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Small Outline Package | SOD-523 footprint (1.20 × 0.80 mm) enables placement on ultra-dense PCBs without sacrificing thermal performance |
| Precision Voltage Regulation | ±5% tolerance at 7.5 V with 15 Ω dynamic impedance ensures tight clamping in feedback or protection circuits |
| Automotive Qualification | AEC-Q101 qualified and PPAP capable - meets stress testing requirements for automotive ECUs and sensors |
| High ESD Robustness | Class 3 HBM (>16 kV) eliminates need for external ESD protection in handheld and portable designs |
Applications
| Cellular Phone Power Management | Automotive Cabin Control Module |
|---|---|
Use Scenario: Regulating bias voltage for RF front-end ICs and sensor interfaces in compact smartphone PCBs. IC Role / Device Role / Timing Role: Shunt voltage reference and transient overvoltage clamp protecting sensitive analog inputs. Use Value: 7.5 V regulation with 1 µA leakage minimizes quiescent current draw while maintaining signal integrity. | Use Scenario: Providing stable reference voltage for microcontroller ADCs and LIN transceivers in dashboard clusters. IC Role / Device Role / Timing Role: Precision voltage reference and ESD-suppression element at interface nodes. Use Value: AEC-Q101 qualification and >16 kV HBM rating ensure long-term reliability in vibration-prone vehicle environments. |
| Wearable Fitness Tracker | Industrial IoT Sensor Node |
Use Scenario: Clamping supply rail spikes during Bluetooth LE radio transmission bursts in coin-cell-powered wearables. IC Role / Device Role / Timing Role: Overvoltage protection device placed directly at power input of PMIC or MCU. Use Value: 500 mW power rating and 15 Ω Zener impedance allow fast response to transient surges without thermal runaway. | Use Scenario: Stabilizing reference voltage for precision temperature/humidity sensing circuits operating across wide ambient temperatures. IC Role / Device Role / Timing Role: Temperature-compensated voltage reference with −65 °C to +150 °C operational range. Use Value: Low 2.5 mV/°C temperature coefficient and full-range qualification support accuracy in uncontrolled enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C7V5 | 7.5 V ±5%, 300 mW rating, SOD-323 package (1.7 × 1.3 mm) | Lower power handling and larger footprint - unsuitable for ultra-dense layouts | Select when board space permits and thermal budget allows reduced derating margin |
| MMSZ5233BT1G | 7.5 V ±5%, 500 mW, SOD-123 package (3.7 × 1.6 mm) | 3× larger footprint and higher thermal resistance (350 °C/W) - limits high-density integration | Choose only if legacy SOD-123 layout reuse is required and rework is not feasible |
Compared with BZX584C7V5 and MMSZ5233BT1G, SZMM5Z7V5T1G delivers identical voltage regulation performance in the smallest available footprint (SOD-523), enabling higher component density and improved thermal efficiency on FR-4 boards without compromising AEC-Q101 compliance or ESD robustness.
Availability
SZMM5Z7V5T1G is available at Aetrix Electronics and suitable for cellular phone power management, automotive cabin control modules, and wearable fitness trackers requiring stable component supply with guaranteed automotive-grade traceability and lifecycle continuity.
Supply support for SZMM5Z7V5T1G 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.
SZMM5Z7V5T1G belongs to the MM5Z/SZMM5Z series of miniature Zener regulators designed specifically for space-constrained, high-reliability applications including automotive infotainment, portable medical devices, and battery-powered edge sensors.
FAQ
What is the Zener voltage tolerance of SZMM5Z7V5T1G?
The SZMM5Z7V5T1G has a nominal Zener voltage of 7.5 V with a standard tolerance of ±5%, meaning its actual breakdown voltage falls between 7.0 V and 7.9 V when tested at IZT = 5 mA and TA = 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the official onsemi datasheet. The SZMM5Z7V5T1G maintains this specification across its qualified operating temperature range.
Is SZMM5Z7V5T1G suitable for automotive applications?
Yes, SZMM5Z7V5T1G is AEC-Q101 qualified and PPAP capable, making it suitable for automotive applications such as cabin control modules, body electronics, and infotainment systems. The "SZ" prefix explicitly denotes automotive-grade qualification, including extended temperature operation (−65 °C to +150 °C), enhanced process controls, and stress-test validation. The SZMM5Z7V5T1G meets all requirements for use in non-safety-critical automotive subsystems.
What is the maximum power dissipation of SZMM5Z7V5T1G at 85 °C ambient?
At 85 °C ambient temperature, the SZMM5Z7V5T1G's maximum power dissipation is 260 mW. This is calculated using the derating factor of 4.0 mW/°C from the datasheet: 500 mW − (85 − 25) × 4.0 = 260 mW. The thermal resistance (RJA = 250 °C/W) and FR-4 board mounting conditions apply. Exceeding this limit risks exceeding the +150 °C junction temperature limit and degrading long-term reliability of the SZMM5Z7V5T1G.
Does SZMM5Z7V5T1G have ESD protection built-in?
Yes, SZMM5Z7V5T1G is rated Class 3 per the Human Body Model (HBM) with an ESD withstand voltage greater than 16 kV. This level of intrinsic ESD robustness eliminates the need for external TVS diodes in many portable and handheld applications. The ESD rating is verified per JEDEC JS-001 and applies to both cathode and anode terminals of the SZMM5Z7V5T1G under standard handling conditions.
What is the reverse leakage current specification for SZMM5Z7V5T1G?
The reverse leakage current for SZMM5Z7V5T1G is specified as 1 µA maximum at VR = 5.0 V and TA = 25 °C. This value is measured under standardized test conditions and reflects the diode's ability to block current below its Zener breakdown threshold. Low leakage preserves battery life in always-on circuits and ensures accurate voltage reference behavior - a critical parameter confirmed for every unit of SZMM5Z7V5T1G during production testing.
SZMM5Z7V5T1G 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):
- 7.5 V
- Tolerance:
- ±6%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5 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
SZMM5Z7V5T1G FAQ
1.How can I place an order for SZMM5Z7V5T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z7V5T1G 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 SZMM5Z7V5T1G reliable?
The price and inventory of SZMM5Z7V5T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z7V5T1G is usually 5 days.
3.What payment methods are accepted for SZMM5Z7V5T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z7V5T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z7V5T1G?
SZMM5Z7V5T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z7V5T1G 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 SZMM5Z7V5T1G?
For technical support, including SZMM5Z7V5T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z7V5T1G requirements.
6.How does Aetrix verify that SZMM5Z7V5T1G is sourced from the original manufacturer or authorized distributors?
All SZMM5Z7V5T1G 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 SZMM5Z7V5T1G meets industry standards.
7.What is the process for return or replacement of SZMM5Z7V5T1G?
All SZMM5Z7V5T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z7V5T1G, 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 SZMM5Z7V5T1G part is unused and in its original packaging.
Return procedure for SZMM5Z7V5T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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