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onsemi SZMMSZ4698T1G
- Part No.:
- SZMMSZ4698T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
SZMMSZ4698T1G.pdf
- Description:
- DIODE ZENER 11V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:8,979
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Product details
Overview
SZMMSZ4698T1G from onsemi is a 11 V, 500 mW surface-mount Zener diode in SOD−123 package, designed for precision voltage regulation and reference applications with low test current (IZT = 50 µA) and ultra-low leakage (IR = 0.05 µA @ VR = 8.4 V). It operates across −55°C to +150°C and is AEC−Q101 qualified for automotive power rail clamping and sensor biasing.
For engineers reviewing the SZMMSZ4698T1G datasheet, pinout, applications, or equivalent options, key selection criteria include nominal Zener voltage tolerance (±5%), dynamic impedance (ZZT ≈ 20 Ω @ IZ = 5 mA), temperature coefficient (≈ +3.5 mV/°C), and Pb−free RoHS compliance in high-density PCB layouts.
Technical Context
This device functions as a two-terminal, reverse-biased voltage reference with tightly controlled Zener breakdown at 11 V (nominal), specified at IZT = 50 µA. Its low leakage (0.05 µA @ 8.4 V) and stable TC support low-power analog sensing and microcontroller reset circuitry.
The SOD−123 package enables automated placement and delivers thermal resistance of 340°C/W (junction-to-ambient) and 150°C/W (junction-to-lead), supporting reliable operation up to 150°C junction temperature under derated power conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.45–11.55 V @ IZT = 50 µA - ensures ±5% regulation tolerance for stable 11 V reference in low-current bias networks. |
| Power Dissipation (PD) | 500 mW on FR−5 board @ TL = 75°C - supports continuous regulation in compact industrial control modules without forced cooling. |
| Reverse Leakage (IR) | 0.05 µA @ VR = 8.4 V - minimizes quiescent current draw in battery-powered sensor nodes and sleep-mode circuits. |
| Zener Impedance (ZZT) | ≈20 Ω @ IZ = 5 mA - maintains tight output voltage stability under moderate load transients in feedback references. |
| Temperature Coefficient | +3.5 mV/°C (typical near 11 V) - enables predictable drift compensation in automotive ambient temperature ranges. |
| ESD Rating | Class 3 (>16 kV HBM) - withstands handling and assembly ESD events without parameter shift or failure. |
Pinout & Package
SOD−123 surface-mount plastic package (1.60 × 2.69 × 1.16 mm), void-free thermosetting case with cathode band marking; polarity confirmed per JEDEC standard: Pin 1 = Cathode, Pin 2 = Anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs at 11 V. |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential rail; completes current path during regulation mode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC−Q101 Qualified | Validated for automotive under-hood applications including engine control units and body electronics. |
| Pb−Free & RoHS Compliant | Meets global environmental compliance requirements for industrial and consumer end equipment. |
| Low IZT = 50 µA | Enables accurate voltage reference operation in ultra-low-power circuits such as IoT sensor wake-up stages. |
| ESD Robustness >16 kV HBM | Eliminates need for external ESD protection in board-level designs targeting IEC 61000-4-2 Level 4. |
| Thermal Derating Support | Linear derating (6.7 mW/°C above 75°C) allows predictable power budgeting in thermally constrained enclosures. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing stable 11 V reference for analog front-end amplifiers monitoring oxygen sensor output. IC Role / Device Role / Timing Role: Precision voltage reference for ADC biasing and op-amp common-mode setting. Use Value: Low leakage (0.05 µA) prevents signal offset drift; ±5% VZ tolerance ensures consistent calibration across production batches. |
Use Scenario: Regulating supply to MEMS pressure sensor ICs in factory automation transmitters. IC Role / Device Role / Timing Role: Low-power shunt regulator maintaining clean 11 V rail independent of main 12 V supply ripple. Use Value: 500 mW rating and 340°C/W RJA enable operation in sealed enclosures up to 85°C ambient without thermal runaway. |
| Medical Portable Diagnostic Device | Consumer Smart Home Hub Power Management |
Use Scenario: Generating reference voltage for battery fuel gauge ICs in handheld ultrasound units. IC Role / Device Role / Timing Role: Low-current Zener reference enabling accurate state-of-charge estimation during standby. Use Value: 50 µA IZT and <0.1 µA leakage minimize battery drain over multi-week idle periods. |
Use Scenario: Clamping transient spikes on 12 V DC input rails feeding Wi-Fi SoCs and voice processors. IC Role / Device Role / Timing Role: Overvoltage protection element absorbing short-duration surges via controlled Zener conduction. Use Value: 11 V breakdown threshold protects downstream 3.3 V/5 V regulators; 150°C max TJ ensures reliability during surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C11LT1G | Same 11 V nominal, but higher IZT = 5 mA; ZZT ≈ 25 Ω; not AEC−Q101 qualified. | Targeted at commercial-grade portable electronics, not automotive environments. | Select when cost sensitivity outweighs automotive qualification and ultra-low IZT requirement. |
| MMSZ5240BT1G | 10 V nominal (not 11 V); IZT = 20 mA; higher leakage (0.1 µA @ 8 V); same SOD−123 package. | Suitable for general-purpose 10 V regulation where tighter 11 V tolerance is not required. | Choose only if system design permits 10 V reference and higher test current is acceptable. |
Compared with BZX84-C11LT1G and MMSZ5240BT1G, SZMMSZ4698T1G uniquely combines AEC−Q101 qualification, 50 µA test current, and 0.05 µA leakage-making it the sole option for automotive-grade 11 V reference where low-quiescent-current stability is mandatory.
Availability
SZMMSZ4698T1G is available at Aetrix Electronics and suitable for automotive ECU power management, industrial sensor signal conditioning, and medical diagnostic device reference circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SZMMSZ4698T1G 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 specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and IoT markets.
SZMMSZ4698T1G belongs to the AEC−Q101-qualified SZMMSZ4xxxT1G Zener regulator family, engineered specifically for robust voltage reference and clamping in harsh-environment automotive and industrial systems.
FAQ
What is the nominal Zener voltage and tolerance of SZMMSZ4698T1G?
The SZMMSZ4698T1G has a nominal Zener voltage of 11 V, with a guaranteed range of 10.45 V to 11.55 V at IZT = 50 µA - corresponding to a ±5% tolerance. This tight specification ensures repeatable performance in precision reference applications such as ADC biasing and sensor excitation circuits where voltage accuracy directly impacts measurement fidelity.
Is SZMMSZ4698T1G suitable for automotive applications?
Yes, SZMMSZ4698T1G is AEC−Q101 qualified and PPAP capable, with full traceability, extended temperature operation (−55°C to +150°C), and robust ESD immunity (>16 kV HBM). These attributes make SZMMSZ4698T1G appropriate for under-hood engine control modules, body electronics, and ADAS subsystems requiring certified reliability.
What is the maximum reverse leakage current for SZMMSZ4698T1G?
The maximum reverse leakage current for SZMMSZ4698T1G is 0.05 µA at VR = 8.4 V and TA = 25°C. This ultra-low leakage supports battery-operated devices and high-impedance analog circuits where even nanoamp-level currents could introduce error or accelerate battery depletion.
Does SZMMSZ4698T1G have Pb−free and RoHS compliance?
Yes, SZMMSZ4698T1G is Pb−free and fully RoHS compliant, meeting EU Directive 2011/65/EU and related global environmental standards. The "G" suffix in the part number explicitly denotes this compliance, and the device uses lead-free soldering-compatible terminations rated for 260°C for 10 seconds.
What package type and dimensions does SZMMSZ4698T1G use?
SZMMSZ4698T1G uses the SOD−123 surface-mount package (JEDEC case 425), measuring 1.60 mm × 2.69 mm × 1.16 mm. It features a cathode band for polarity identification and is optimized for high-speed pick-and-place assembly, supporting high-density PCB layouts in space-constrained applications like automotive ECUs and portable medical devices.
SZMMSZ4698T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 50 nA @ 8.4 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
SZMMSZ4698T1G FAQ
1.How can I place an order for SZMMSZ4698T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMMSZ4698T1G 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 SZMMSZ4698T1G reliable?
The price and inventory of SZMMSZ4698T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMMSZ4698T1G is usually 5 days.
3.What payment methods are accepted for SZMMSZ4698T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMMSZ4698T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMMSZ4698T1G?
SZMMSZ4698T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMMSZ4698T1G 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 SZMMSZ4698T1G?
For technical support, including SZMMSZ4698T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMMSZ4698T1G requirements.
6.How does Aetrix verify that SZMMSZ4698T1G is sourced from the original manufacturer or authorized distributors?
All SZMMSZ4698T1G 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 SZMMSZ4698T1G meets industry standards.
7.What is the process for return or replacement of SZMMSZ4698T1G?
All SZMMSZ4698T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMMSZ4698T1G, 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 SZMMSZ4698T1G part is unused and in its original packaging.
Return procedure for SZMMSZ4698T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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