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onsemi MMSZS4690T1G
- Part No.:
- MMSZS4690T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
MMSZS4690T1G.pdf
- Description:
- MMSZS4690T1G
- Quantity:
- Payment:
- Shipping:
Inventory:159,000
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Product details
Overview
MMSZS4690T1G from ON Semiconductor is a 10 V, 500 mW surface-mount Zener diode in SOD-123 package, with ±5% tolerance, 100 nA maximum reverse leakage at rated voltage, and 15 Ω typical dynamic impedance - used for precision voltage regulation and reference in low-power analog circuits.
For engineers reviewing the MMSZS4690T1G datasheet, pinout, applications, or equivalent options, this part serves as a stable, AEC-Q101 qualified voltage reference in automotive sensor signal conditioning, industrial power supply feedback loops, and portable device overvoltage protection circuits.
Technical Context
The MMSZS4690T1G is a single-terminal Zener diode optimized for operation in reverse breakdown mode, designed to maintain a stable 10 V reference across 0.25 mA to 10 mA test current range. Its SOD-123 package supports automated placement and reflow soldering per JEDEC J-STD-020.
Qualified per AEC-Q101 with full reliability testing including HTRB (1008 hrs @ 150°C), HTSL (1512 hrs @ 150°C), and TempCycle (2000 cycles @ −65°C to +150°C), it delivers proven robustness for under-hood and industrial ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10 V ±5% at IZ = 5 mA - ensures tight regulation tolerance for feedback and reference applications. |
| Power Dissipation (PD) | 500 mW at TA = 25°C - defines maximum continuous power handling without derating. |
| Dynamic Impedance (ZZT) | 15 Ω typical at IZ = 5 mA - indicates low AC impedance for stable reference performance under varying load. |
| Reverse Leakage (IR) | 100 nA max at VR = 7.6 V - guarantees minimal error current in high-impedance reference nodes. |
| Test Current (IZT) | 5 mA - standard operating point for specification compliance and design validation. |
| Package | SOD-123 - compact 2-pin surface-mount outline compatible with IPC-7351B footprint and 260°C reflow profile. |
Pinout & Package
SOD-123 package: 2-terminal surface-mount diode with cathode band marking; body dimensions 2.7 mm × 1.6 mm × 1.1 mm (L × W × H); terminals are anode and cathode, with cathode identified by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to circuit ground or lower-potential node when used in reverse-biased regulation. |
| Cathode | Reverse-bias input / regulated output node | Connected to input voltage source; regulated 10 V appears between cathode and anode during breakdown. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use with HTRB, HTSL, TempCycle, and H3TRB+PC testing - enables deployment in engine control, ADAS, and body electronics. |
| ±5% Zener voltage tolerance | Tighter than standard 10% Zeners - reduces need for external trimming in precision reference designs. |
| Low dynamic impedance (15 Ω) | Minimizes output voltage variation under load transients - critical for stable feedback in LDOs and SMPS. |
| SOD-123 package | Small footprint and thermal resistance of ~400°C/W - supports high-density PCB layouts and moderate power dissipation. |
Applications
| Automotive Sensor Reference | Industrial Power Supply Feedback |
|---|---|
|
Use Scenario: Providing stable 10 V reference for analog front-end of pressure/temperature sensors in engine management systems. IC Role / Device Role / Timing Role: Zener reference diode supplying precise bias voltage to op-amp and ADC input stages. Use Value: Enables <±1% sensor output accuracy over −40°C to +125°C due to tight VZ tolerance and low temperature coefficient. |
Use Scenario: Voltage reference in optocoupler-based feedback loop of isolated 24 V DC-DC converter for PLC I/O modules. IC Role / Device Role / Timing Role: Zener diode setting reference threshold for TL431-like regulation in secondary-side feedback network. Use Value: Maintains output regulation within ±2% across line/load variations thanks to 15 Ω ZZT and 100 nA IR. |
| Portable Device Overvoltage Clamp | Medical Instrument Calibration Reference |
|
Use Scenario: Clamping transient surges on USB VBUS line in battery-powered diagnostic handhelds. IC Role / Device Role / Timing Role: Reverse-biased Zener acting as shunt overvoltage protector downstream of ESD diodes. Use Value: Limits voltage to ≤10.5 V during 1 kV ESD events without degradation, validated per AEC-Q101 stress profiles. |
Use Scenario: Primary voltage reference in portable ECG amplifier calibration circuit requiring traceable stability. IC Role / Device Role / Timing Role: Precision Zener providing fixed 10 V node for DAC offset correction and gain scaling. Use Value: Delivers <5 ppm/°C tempco and <0.5% long-term drift - meets IEC 60601-1 accuracy requirements for Class II devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5240BT1G | 10 V nominal, ±5% tolerance, same SOD-123 package, but rated for 500 mW at TA = 25°C with 20 Ω ZZT (vs. 15 Ω). | Higher dynamic impedance may reduce regulation stability in fast-transient loads. | Select MMSZ5240BT1G only if legacy BOM alignment or stock availability outweighs 33% higher ZZT. |
| BZX84-C10LT1G | 10 V, ±5%, SOT-23 package (smaller footprint), 350 mW rating, 20 Ω ZZT, not AEC-Q101 qualified. | Lacks automotive qualification and has lower power rating - unsuitable for under-hood or high-reliability industrial use. | Choose BZX84-C10LT1G only for cost-sensitive consumer applications where AEC-Q101 and 500 mW are not required. |
Compared with MMSZ5240BT1G and BZX84-C10LT1G, the MMSZS4690T1G offers superior dynamic impedance and automotive qualification - making it the preferred choice for safety-critical or thermally demanding voltage reference roles.
Availability
MMSZS4690T1G is available at Aetrix Electronics and suitable for automotive sensor reference, industrial power supply feedback, and portable device overvoltage protection requiring stable component supply and long-term lifecycle support.
Supply support for MMSZS4690T1G 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
ON Semiconductor is a global semiconductor supplier delivering energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, medical, and IoT applications.
The MMSZS series is part of ON Semiconductor's precision Zener diode product line, engineered specifically for stable voltage reference and regulation in AEC-Q101-compliant automotive and high-reliability industrial systems.
FAQ
What is the Zener voltage tolerance of the MMSZS4690T1G?
The MMSZS4690T1G has a Zener voltage tolerance of ±5% at 5 mA test current, meaning its actual breakdown voltage falls between 9.5 V and 10.5 V under specified conditions. This tighter tolerance supports precision reference applications without external trimming. The MMSZS4690T1G maintains this spec across its qualified operating temperature range and is verified per AEC-Q101 reliability standards.
Is the MMSZS4690T1G qualified for automotive applications?
Yes, the MMSZS4690T1G is AEC-Q101 qualified, having passed full stress testing including HTRB (1008 hrs @ 150°C), HTSL (1512 hrs @ 150°C), and TempCycle (2000 cycles @ −65°C to +150°C). This qualification confirms its suitability for under-hood and chassis-mounted automotive systems. The MMSZS4690T1G is explicitly listed in ON Semiconductor's FPCN #20425 as an affected AEC-Q101 qualified part.
What package type does the MMSZS4690T1G use?
The MMSZS4690T1G uses the SOD-123 surface-mount package - a 2-terminal, gull-wing leaded outline measuring 2.7 mm × 1.6 mm × 1.1 mm. It features a cathode band marking and complies with JEDEC J-STD-020 moisture sensitivity level 1. The MMSZS4690T1G's SOD-123 footprint is standardized and widely supported in PCB design libraries.
What is the maximum reverse leakage current for the MMSZS4690T1G?
The MMSZS4690T1G specifies a maximum reverse leakage current (IR) of 100 nA at 7.6 V reverse voltage, measured at 25°C. This ultra-low leakage ensures minimal error current in high-impedance reference nodes and contributes to stable regulation in battery-powered and precision analog circuits. The MMSZS4690T1G maintains this performance across its qualified temperature range.
How does the MMSZS4690T1G differ from the standard MMSZ4690T1G?
The "S" suffix in MMSZS4690T1G denotes a customer-specific variant qualified for automotive use with enhanced traceability and process controls - distinct from the commercial-grade MMSZ4690T1G. Both share identical electrical specs and SOD-123 packaging, but only the MMSZS4690T1G carries full AEC-Q101 qualification and is listed in ON Semiconductor's automotive change notifications such as FPCN #20425.
MMSZS4690T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MMSZS4690T1G FAQ
1.How can I place an order for MMSZS4690T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for MMSZS4690T1G 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 MMSZS4690T1G reliable?
The price and inventory of MMSZS4690T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMSZS4690T1G is usually 5 days.
3.What payment methods are accepted for MMSZS4690T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMSZS4690T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMSZS4690T1G?
MMSZS4690T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMSZS4690T1G 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 MMSZS4690T1G?
For technical support, including MMSZS4690T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMSZS4690T1G requirements.
6.How does Aetrix verify that MMSZS4690T1G is sourced from the original manufacturer or authorized distributors?
All MMSZS4690T1G 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 MMSZS4690T1G meets industry standards.
7.What is the process for return or replacement of MMSZS4690T1G?
All MMSZS4690T1G units undergo pre-shipment inspection (PSI). If there is an issue with MMSZS4690T1G, 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 MMSZS4690T1G part is unused and in its original packaging.
Return procedure for MMSZS4690T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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