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onsemi SZMM3Z62VT1G
- Part No.:
- SZMM3Z62VT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
SZMM3Z62VT1G.pdf
- Description:
- DIODE ZENER 62V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:5,980
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Product details
Overview
SZMM3Z62VT1G from onsemi is a 62 V, 300 mW Zener voltage regulator diode in SOD−323 package, designed for precision voltage reference and overvoltage protection in space-constrained PCBs. It delivers nominal Zener voltage of 62 V at 2 mA test current, with dynamic impedance of 215 Ω at IZT and leakage current ≤0.05 µA at 43.4 V reverse bias - ideal for voltage clamping in portable power rails.
For engineers reviewing the SZMM3Z62VT1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 62 V regulation tolerance (58–66 V), low 0.9 mm body height, AEC−Q101 qualification, and 185 pF capacitance at 0 V bias - critical for EMI-sensitive analog sensing and automotive subsystems.
Technical Context
This device operates as a two-terminal shunt regulator, maintaining stable output voltage by conducting reverse current above its Zener breakdown threshold. Its thermal resistance (RJA = 416 °C/W) and 300 mW steady-state dissipation define safe operating limits on FR-4 boards with 1 cm² copper pad.
The SZMM3Z62VT1G exhibits a positive temperature coefficient of +0.4 mV/°C, enabling predictable drift compensation in temperature-stable references. Its 16 kV HBM ESD rating and Pb-free SOD−323 construction support robust deployment in handheld and automotive electronics without additional transient suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 58–66 V at IZT = 2 mA - defines clamping range for 5 V–60 V supply rail protection |
| Power Dissipation | 300 mW @ TA = 25°C - sets maximum continuous power handling on standard PCB layout |
| Zener Impedance (ZZT) | 215 Ω @ IZT = 2 mA - determines regulation accuracy under varying load current |
| Leakage Current (IR) | ≤0.05 µA @ VR = 43.4 V - ensures minimal standby power loss in battery-powered systems |
| Capacitance (C) | 35 pF @ VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering capability in signal path |
| ESD Rating | Class 3 (>16 kV HBM) - enables direct integration into unshielded user-interface circuits |
| Package | SOD−323 (Case 477) - 1.7 × 1.25 × 0.9 mm footprint for ultra-dense routing on mobile PCBs |
Pinout & Package
SOD−323 surface-mount package with cathode indicated by polarity band; total weight 4.507 mg per unit; UL 94 V−0 flammability rating; compatible with Pb−Sn or Sn-only reflow profiles (260°C/10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener anode connection point in reverse-bias configuration | Connected to regulated voltage node; sinks current during overvoltage events |
| 2 (Anode) | Zener cathode connection point in reverse-bias configuration | Connected to ground or low-impedance return path; establishes reference potential |
Key Features
| Feature | Design Value |
|---|---|
| AEC−Q101 qualified | Validated for automotive applications including infotainment power supplies and sensor interfaces |
| Low profile (0.9 mm height) | Enables stacking under shields or placement beneath connectors in slim form factors |
| 16 kV HBM ESD rating | Eliminates need for external TVS diodes in USB, button, or display interface protection |
| Pb-free and RoHS compliant | Meets global environmental compliance requirements without derating or process changes |
| Stable tempco (+0.4 mV/°C) | Supports ±0.5% voltage stability across −40°C to +125°C ambient range |
Applications
| Automotive Body Control Module | Portable Medical Sensor Supply |
|---|---|
Use Scenario: Clamping 12 V battery rail transients in door module microcontroller power domain. IC Role / Device Role / Timing Role: Shunt regulator providing overvoltage protection for LDO input stage. Use Value: Prevents LDO damage during load dump (up to 60 V), leveraging 62 V Zener threshold and 300 mW dissipation. |
Use Scenario: Stabilizing reference voltage for 24-bit ADC in wearable ECG front-end. IC Role / Device Role / Timing Role: Precision voltage reference source with low leakage and low capacitance. Use Value: Enables <1 LSB error contribution via 0.05 µA leakage and 35 pF capacitance at DC bias. |
| Industrial IoT Gateway Power Rail | Smartphone Camera Flash Circuit |
Use Scenario: Protecting RS-485 transceiver VCC from surge-induced overvoltage in factory floor wiring. IC Role / Device Role / Timing Role: Fast-response clamp limiting voltage excursions above 62 V. Use Value: Responds within nanoseconds to 1 kV/µs transients due to low junction capacitance and low ZZT. |
Use Scenario: Regulating boost converter output for white LED flash driver in compact camera modules. IC Role / Device Role / Timing Role: Secondary voltage reference ensuring consistent flash intensity. Use Value: Maintains ±1.5% output stability across temperature using +0.4 mV/°C tempco and tight 58–66 V tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B62,115 | 62 V, 300 mW, SOD-323, but ±5% tolerance (59–65 V) vs. SZMM3Z62VT1G's 58–66 V; 250 Ω ZZT | Lacks AEC−Q101 qualification; rated for commercial temp only (−65°C to +150°C not validated) | Prefer SZMM3Z62VT1G for automotive; BZX384-B62 where cost sensitivity outweighs qualification needs |
| MMSZ5257ET1G | 62 V, 500 mW, SOD-123; higher power but larger footprint (3.5 × 1.6 mm vs. 1.7 × 1.25 mm) | Higher thermal mass allows >300 mW pulsed operation; unsuitable for ultra-thin PCBs | Choose SZMM3Z62VT1G when board area < 2.2 mm² is mandatory; MMSZ5257ET1G for higher pulse energy handling |
Compared with BZX384-B62 and MMSZ5257ET1G, the SZMM3Z62VT1G uniquely combines AEC−Q101 qualification, 1.7 × 1.25 mm footprint, and 62 V regulation in a single 300 mW SOD−323 package - making it optimal for space- and reliability-critical automotive and portable designs.
Availability
SZMM3Z62VT1G is available at Aetrix Electronics and suitable for automotive body control modules, portable medical sensor supplies, and industrial IoT gateway power rails requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SZMM3Z62VT1G 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 (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics, delivering silicon solutions for automotive, industrial, cloud, and consumer markets.
The MM3ZxxxT1G/SZMM3ZxxxT1G series was developed specifically for miniaturized voltage regulation in high-density portable and automotive electronics - emphasizing low profile, high reliability, and AEC−Q101 compliance.
FAQ
What is the Zener voltage tolerance of SZMM3Z62VT1G?
The SZMM3Z62VT1G has a specified Zener voltage range of 58 V to 66 V at IZT = 2 mA and TA = 25°C. This ±6.5% tolerance reflects manufacturing spread and ensures reliable clamping behavior across production lots while maintaining compatibility with 60 V system-level overvoltage thresholds.
Is SZMM3Z62VT1G suitable for automotive applications?
Yes, SZMM3Z62VT1G is AEC−Q101 qualified and PPAP capable, with full traceability and process controls required for automotive use. Its guaranteed operation from −65°C to +150°C, 16 kV HBM ESD rating, and SOD−323 mechanical robustness make it appropriate for body control, lighting, and sensor interface modules.
What is the maximum steady-state power dissipation for SZMM3Z62VT1G?
The SZMM3Z62VT1G has a maximum steady-state power dissipation of 300 mW at TA = 25°C on an FR-4 board with 1 cm² copper pad. Power must be linearly derated by 2.4 mW/°C above 25°C ambient, reaching zero dissipation at approximately 150°C case temperature.
How does the temperature coefficient affect SZMM3Z62VT1G performance?
The SZMM3Z62VT1G has a nominal temperature coefficient of +0.4 mV/°C, meaning its Zener voltage increases by ~0.4 mV per degree Celsius rise in junction temperature. This predictable positive drift supports stable reference design across −40°C to +125°C, especially when paired with complementary negative-coefficient components.
What packaging and marking details apply to SZMM3Z62VT1G?
SZMM3Z62VT1G is supplied in Pb-free SOD−323 tape-and-reel packaging (3,000 units per reel). The device marking is "2A" on the cathode side, per the datasheet's marking diagram. Polarity is indicated by a band adjacent to Pin 1 (cathode), and the package conforms to Case 477, Style 1 mechanical dimensions.
SZMM3Z62VT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 62 V
- Tolerance:
- -
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 215 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 43.4 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-323
SZMM3Z62VT1G FAQ
1.How can I place an order for SZMM3Z62VT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM3Z62VT1G 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 SZMM3Z62VT1G reliable?
The price and inventory of SZMM3Z62VT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM3Z62VT1G is usually 5 days.
3.What payment methods are accepted for SZMM3Z62VT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM3Z62VT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM3Z62VT1G?
SZMM3Z62VT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM3Z62VT1G 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 SZMM3Z62VT1G?
For technical support, including SZMM3Z62VT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM3Z62VT1G requirements.
6.How does Aetrix verify that SZMM3Z62VT1G is sourced from the original manufacturer or authorized distributors?
All SZMM3Z62VT1G 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 SZMM3Z62VT1G meets industry standards.
7.What is the process for return or replacement of SZMM3Z62VT1G?
All SZMM3Z62VT1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM3Z62VT1G, 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 SZMM3Z62VT1G part is unused and in its original packaging.
Return procedure for SZMM3Z62VT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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