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onsemi SZMM5Z4715T1G
- Part No.:
- SZMM5Z4715T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z4715T1G.pdf
- Description:
- DIODE ZENER 36V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:5,970
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Product details
Overview
SZMM5Z4715T1G from onsemi is a 36 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), 27.3 V reverse voltage (VR) at 1 µA leakage, and AEC−Q101 qualified for automotive applications such as ECU voltage clamping and sensor biasing.
For engineers reviewing the SZMM5Z4715T1G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±5%), low leakage (≤1 µA @ 27.3 V), thermal resistance (250 °C/W), ESD robustness (>16 kV HBM), and Pb−free SOD−523 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a precision shunt voltage reference, maintaining stable regulation across −55°C to +150°C junction temperature range with a typical temperature coefficient near +5.5 mV/°C at 36 V. Its low IZT of 50 µA enables efficient biasing in ultra-low-power circuits without excessive quiescent current draw.
The SOD−523 package supports automated placement and reflow soldering per JEDEC J-STD-020, with maximum soldering temperature of 260°C for 10 seconds. Cathode polarity is marked by a band, and the device exhibits Class 3 ESD rating (>16 kV HBM), making it suitable for portable and automotive environments where transient immunity is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 34.2 V (min) to 37.8 V (max) @ IZT = 50 µA - defines regulated output range under standard test conditions |
| Power Dissipation (PD) | 500 mW @ TL = 75°C - sets maximum continuous power handling on FR−5 board before derating |
| Thermal Resistance (RJA) | 250 °C/W - determines junction-to-ambient temperature rise per watt, critical for thermal design margin |
| Reverse Leakage (IR) | ≤1 µA @ VR = 27.3 V - ensures minimal standby current in voltage-clamp or reference circuits |
| ESD Rating | Class 3 (>16 kV) per HBM - guarantees robustness against human-body electrostatic discharge events |
| Junction Temp Range | −55°C to +150°C - supports operation in under-hood automotive and industrial ambient environments |
Pinout & Package
SOD−523 surface-mount package: 1.20 mm × 0.80 mm × 0.60 mm, void-free thermosetting plastic case, cathode indicated by polarity band, UL 94 V−0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage node; current flows into cathode during Zener conduction |
| 2 (Non-banded End) | Anode | Connected to circuit ground or lower-potential reference; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| AEC−Q101 qualification | Validated for automotive electronics use including engine control modules and ADAS sensors |
| Pb−free and RoHS compliant | Meets global environmental compliance requirements without lead-based solder compatibility compromises |
| Low IZT (50 µA) | Enables accurate regulation in battery-powered systems where supply current must be minimized |
| Small SOD−523 footprint | Reduces PCB area by >50% vs. SOD−123, enabling compact designs in space-constrained portables |
| High ESD immunity (>16 kV HBM) | Eliminates need for external TVS protection in handheld and infotainment interface circuits |
Applications
| Automotive ECU Protection | Portable Device Voltage Reference |
|---|---|
Use Scenario: Clamping transients on 3.3 V or 5 V supply rails in engine control units exposed to load dump and ISO 7637 pulses. IC Role / Device Role / Timing Role: Shunt voltage regulator providing overvoltage protection and stable bias point for microcontroller I/O and analog peripherals. Use Value: Prevents latch-up or damage to downstream ICs by clamping spikes above 36 V while drawing <1 µA at nominal operating voltage. |
Use Scenario: Providing precise 36 V reference for ADC calibration or battery management system (BMS) cell monitoring in medical wearables. IC Role / Device Role / Timing Role: Precision Zener reference source replacing larger, higher-cost voltage references in ultra-low-power sensing nodes. Use Value: Delivers ±5% voltage accuracy with <1 µA leakage, extending battery life beyond 5 years in coin-cell–powered devices. |
| Industrial Sensor Signal Conditioning | High-Density PC Board Clamp |
Use Scenario: Stabilizing excitation voltage for 4–20 mA current-loop pressure transmitters operating in harsh factory environments. IC Role / Device Role / Timing Role: Zener shunt regulator ensuring consistent sensor bridge bias despite wide input voltage fluctuations (12–36 V). Use Value: Maintains <0.5% full-scale error over −40°C to +125°C due to predictable TC and low thermal resistance. |
Use Scenario: Protecting FPGA I/O banks and high-speed SerDes receivers from ESD and coupling-induced surges on dense server motherboard layouts. IC Role / Device Role / Timing Role: Low-capacitance (<2 pF) clamp diode placed adjacent to connectors and high-speed traces. Use Value: Limits voltage overshoot to <38 V with <1 ns response, preventing receiver damage without signal integrity degradation. |
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-C36 | Same nominal voltage (36 V), but SOD-323 package (1.7 × 1.3 mm); 300 mW rating; ±5% tolerance; no AEC−Q101 qualification | Lacks automotive qualification and has higher thermal resistance (350 °C/W); suitable only for commercial-grade consumer products | Select BZX584-C36 only when AEC−Q101 compliance is not required and board space allows larger footprint. |
| MMSZ5245B | SOD-123 package (3.7 × 1.6 mm); 500 mW rating; 33 V nominal Zener; ±5% tolerance; no AEC−Q101 or >16 kV HBM rating | Lower voltage rating and larger size limit use in 36 V clamp circuits and high-density layouts; lacks automotive validation | Choose MMSZ5245B only if 33 V regulation suffices and mechanical clearance permits larger SOD-123 placement. |
Compared with BZX584-C36 and MMSZ5245B, SZMM5Z4715T1G uniquely combines AEC−Q101 qualification, 36 V Zener voltage, SOD−523 miniaturization, and >16 kV HBM ESD rating-making it the only option for space-constrained, automotive-grade 36 V clamping where reliability and footprint are co-critical.
Availability
SZMM5Z4715T1G is available at Aetrix Electronics and suitable for automotive ECUs, portable medical monitors, industrial 4–20 mA transmitters, and high-density server motherboards requiring stable component supply with guaranteed long-term availability.
Supply support for SZMM5Z4715T1G 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, and medical applications.
SZMM5Z4715T1G belongs to the MM5Z4xxxTxG/SZMM5Z4xxxTxG family of miniature Zener regulators designed specifically for space-constrained, high-reliability voltage reference and transient suppression in automotive and portable electronics.
FAQ
What is the Zener voltage tolerance of SZMM5Z4715T1G?
The SZMM5Z4715T1G has a Zener voltage range of 34.2 V (minimum) to 37.8 V (maximum) at IZT = 50 µA, corresponding to a ±5% tolerance around the nominal 36 V rating. This tolerance is fully specified in the Electrical Characteristics table on page 3 of the official onsemi datasheet and applies across the full operating temperature range of −55°C to +150°C.
Is SZMM5Z4715T1G suitable for automotive applications?
Yes, SZMM5Z4715T1G is AEC−Q101 qualified and PPAP capable, with the "SZ" prefix explicitly indicating compliance for automotive and other applications requiring unique site and control change requirements. It meets stringent reliability, thermal, and ESD standards required for under-hood and cabin electronics, including engine control units and ADAS sensor modules.
What is the maximum power dissipation for SZMM5Z4715T1G on an FR-5 board?
SZMM5Z4715T1G is rated for 500 mW total power dissipation on FR-5 board at TL = 75°C, with a derating factor of 4.0 mW/°C above that temperature. This rating assumes use of the minimum recommended footprint and is validated per JEDEC test methods, as stated in the Maximum Ratings table on page 1 of the onsemi datasheet.
Does SZMM5Z4715T1G have a defined temperature coefficient?
Yes, SZMM5Z4715T1G exhibits a positive temperature coefficient typical of mid-voltage Zeners, with a value near +5.5 mV/°C at 36 V, as shown in Figure 1 (Temperature Coefficients) of the onsemi datasheet. This coefficient remains stable across −55°C to +150°C and directly impacts voltage drift in precision reference applications.
What is the reverse leakage current specification for SZMM5Z4715T1G?
SZMM5Z4715T1G specifies a maximum reverse leakage current (IR) of 1 µA at VR = 27.3 V, measured at TA = 25°C. This low leakage enables reliable operation in battery-sensitive applications and ensures minimal parasitic loading on regulated nodes, as confirmed in the Electrical Characteristics table on page 3 of the onsemi datasheet.
SZMM5Z4715T1G 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):
- 36 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 10 nA @ 27.3 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
SZMM5Z4715T1G FAQ
1.How can I place an order for SZMM5Z4715T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z4715T1G 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 SZMM5Z4715T1G reliable?
The price and inventory of SZMM5Z4715T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z4715T1G is usually 5 days.
3.What payment methods are accepted for SZMM5Z4715T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z4715T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z4715T1G?
SZMM5Z4715T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z4715T1G 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 SZMM5Z4715T1G?
For technical support, including SZMM5Z4715T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z4715T1G requirements.
6.How does Aetrix verify that SZMM5Z4715T1G is sourced from the original manufacturer or authorized distributors?
All SZMM5Z4715T1G 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 SZMM5Z4715T1G meets industry standards.
7.What is the process for return or replacement of SZMM5Z4715T1G?
All SZMM5Z4715T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z4715T1G, 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 SZMM5Z4715T1G part is unused and in its original packaging.
Return procedure for SZMM5Z4715T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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