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onsemi MMSZ4692ET1
- Part No.:
- MMSZ4692ET1
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
MMSZ4692ET1.pdf
- Description:
- DIODE ZENER 6.8V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:3,180
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Product details
Overview
MMSZ4692ET1 from ON Semiconductor is a 6.8 V, 500 mW surface-mount Zener diode in SOD−123 package, rated for 10 µA leakage at 5.1 V reverse bias and 50 mA test current, used for precision voltage regulation and overvoltage protection in low-power analog and power management circuits.
For engineers reviewing the MMSZ4692ET1 datasheet, pinout, applications, or equivalent options, this device serves as a compact, AEC−Q101-qualified voltage reference with Class 3 ESD tolerance (>16 kV HBM), stable thermal coefficient, and optimized footprint for high-density PCB layouts.
Technical Context
The MMSZ4692ET1 operates as a two-terminal silicon Zener diode with sharp reverse breakdown at nominal 6.8 V (min 6.46 V, max 7.14 V) under 50 mA test current. Its dynamic impedance is ≤15 Ω at 20 mA, and temperature coefficient is +2.5 mV/°C near 6.8 V, enabling predictable drift compensation in reference designs.
It delivers 225 W peak surge power (8 × 20 µs pulse), supports junction temperatures from −55 °C to +150 °C, and exhibits ≤10 µA reverse leakage at VR = 5.1 V - critical for battery-powered and automotive sensor interface applications requiring low quiescent current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.46 V (min) to 7.14 V (max) @ IZT = 50 mA - defines tight regulation window for 6.8 V nominal reference |
| Power Dissipation | 500 mW on FR−5 board @ TL = 75 °C - sets continuous operating limit in standard PCB thermal conditions |
| Reverse Leakage | ≤10 µA @ VR = 5.1 V - ensures minimal standby current in voltage-clamp or biasing roles |
| Dynamic Impedance | ≤15 Ω @ IZ = 20 mA - maintains low output impedance for stable regulation under load transients |
| ESD Rating | Class 3 (>16 kV) per Human Body Model - enables robust handling and operation in unshielded industrial environments |
| Thermal Resistance | RJA = 340 °C/W - determines junction-to-ambient temperature rise under steady-state power dissipation |
| Operating Temperature | −55 °C to +150 °C - supports deployment in under-hood automotive and industrial control systems |
Pinout & Package
Package: SOD−123 (Case 425−04), surface-mount plastic case with cathode band marking; dimensions: 2.54–2.84 mm length × 1.40–1.80 mm width × 0.94–1.35 mm height; Pb−free, UL 94 V−0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reverse-biased terminal during Zener operation | Connected to higher potential node; polarity band identifies this terminal for correct orientation in voltage clamp or reference configurations |
| 2 (Anode) | Forward-biased terminal during Zener operation | Connected to lower potential node or ground; completes current path when reverse voltage exceeds VZ |
Key Features
| Feature | Design Value |
|---|---|
| AEC−Q101 qualification | Validated for automotive electronics use, including engine control modules and body electronics where reliability under thermal cycling is mandatory |
| Optimized SOD−123 footprint | Enables automated placement and reflow soldering on high-density boards without tombstoning risk due to balanced pad geometry |
| Low dynamic impedance | ≤15 Ω at 20 mA ensures minimal output voltage variation across load current changes in feedback or sensing paths |
| High ESD immunity | Class 3 (>16 kV HBM) eliminates need for external ESD protection in I/O line clamping and sensor signal conditioning |
| Stable temperature coefficient | +2.5 mV/°C near 6.8 V allows predictable drift modeling and compensation in precision reference circuits |
Applications
| Automotive Sensor Biasing | Industrial Analog Signal Clamping |
|---|---|
Use Scenario: Providing stable 6.8 V bias to Hall-effect and pressure sensors in engine control units. IC Role / Device Role / Timing Role: Voltage reference and current-limiting element in sensor excitation circuitry. Use Value: Ensures sensor output accuracy remains within ±1% over −40 °C to +125 °C ambient, leveraging tight VZ tolerance and low TC. |
Use Scenario: Protecting ADC inputs from transient overvoltage in PLC analog input modules. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp limiting input to 7.14 V maximum. Use Value: Prevents ADC saturation and latch-up with <10 µA leakage at 5.1 V, preserving signal integrity during normal operation. |
| Portable Device Power Monitoring | LED Driver Reference |
Use Scenario: Monitoring battery voltage via resistive divider into microcontroller ADC in wearables. IC Role / Device Role / Timing Role: Precision voltage threshold detector with known Zener knee. Use Value: Enables accurate state-of-charge estimation down to 2.5 V supply, supported by guaranteed 6.46–7.14 V VZ range. |
Use Scenario: Setting constant-current reference for linear LED drivers in architectural lighting. IC Role / Device Role / Timing Role: Stable voltage reference for op-amp feedback loop controlling MOSFET gate. Use Value: Maintains ±2% LED current stability across temperature, enabled by low dynamic impedance and AEC−Q101 reliability. |
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-C6V8 | Same 6.8 V nominal, but SOT−23 package (larger footprint); 350 mW power rating; higher ZZT (≤40 Ω) | Less suitable for ultra-high-density layouts; lower surge capability (100 W vs. 225 W) | Select when legacy SOT−23 footprint compatibility is required and thermal derating margin is available. |
| MMSZ5236B | Same SOD−123 package; 6.8 V nominal but wider tolerance (6.4–7.2 V); 500 mW rating; no AEC−Q101 qualification | Not qualified for automotive use; higher leakage (≤25 µA @ 5.1 V) | Choose for cost-sensitive industrial applications where automotive qualification and lowest leakage are not mandatory. |
Compared with BZX84-C6V8 and MMSZ5236B, the MMSZ4692ET1 offers superior thermal performance (RJA = 340 °C/W), tighter VZ tolerance (±5%), and automotive-grade reliability - making it optimal for space-constrained, mission-critical voltage reference tasks.
Availability
MMSZ4692ET1 is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial analog signal clamping, portable device power monitoring, and LED driver reference applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MMSZ4692ET1 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 manufacturer specializing in energy-efficient power management, analog, and sensor solutions for automotive, industrial, and consumer markets.
The MMSZ4xxxET1G series was designed specifically for compact, high-reliability voltage regulation in automotive and industrial surface-mount applications - emphasizing AEC−Q101 compliance, low-profile packaging, and stable Zener characteristics across wide temperature ranges.
FAQ
What is the nominal Zener voltage of the MMSZ4692ET1?
The MMSZ4692ET1 has a nominal Zener voltage of 6.8 V, with a guaranteed range of 6.46 V (minimum) to 7.14 V (maximum) at a test current of 50 mA. This tight tolerance supports precision voltage reference applications where regulation accuracy is critical, such as in sensor excitation and ADC reference circuits. The MMSZ4692ET1 achieves this specification under standard test conditions at 25 °C ambient temperature.
Is the MMSZ4692ET1 suitable for automotive applications?
Yes, the MMSZ4692ET1 is AEC−Q101 qualified and PPAP capable, confirming its suitability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. Its operating temperature range of −55 °C to +150 °C, combined with Class 3 ESD rating (>16 kV HBM), meets stringent automotive reliability requirements. The MMSZ4692ET1 is explicitly listed in ON Semiconductor's automotive-grade Zener portfolio.
What is the maximum reverse leakage current for the MMSZ4692ET1?
The MMSZ4692ET1 specifies a maximum reverse leakage current of 10 µA at a reverse voltage of 5.1 V and ambient temperature of 25 °C. This low leakage supports energy-efficient operation in battery-powered systems and ensures minimal error contribution in precision voltage divider or reference circuits. The MMSZ4692ET1 maintains this performance across its full operating temperature range.
Does the MMSZ4692ET1 have a Pb−free package?
Yes, the MMSZ4692ET1 is supplied in a Pb−free SOD−123 package compliant with RoHS Directive 2011/65/EU. The device marking includes an "M" suffix indicating Pb−free construction, and the package meets UL 94 V−0 flammability rating. The MMSZ4692ET1 is compatible with standard lead-free reflow profiles up to 260 °C for 10 seconds.
What is the dynamic impedance of the MMSZ4692ET1?
The MMSZ4692ET1 has a maximum dynamic impedance (ZZT) of 15 Ω at a Zener test current of 20 mA and 1 kHz AC signal. This low impedance ensures minimal voltage variation under changing load conditions, making the MMSZ4692ET1 effective in stabilizing reference voltages in feedback loops and precision regulation circuits. The value is measured with the device junction at thermal equilibrium.
MMSZ4692ET1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 6.8 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 5.1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
MMSZ4692ET1 FAQ
1.How can I place an order for MMSZ4692ET1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMSZ4692ET1 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 MMSZ4692ET1 reliable?
The price and inventory of MMSZ4692ET1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMSZ4692ET1 is usually 5 days.
3.What payment methods are accepted for MMSZ4692ET1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMSZ4692ET1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMSZ4692ET1?
MMSZ4692ET1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMSZ4692ET1 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 MMSZ4692ET1?
For technical support, including MMSZ4692ET1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMSZ4692ET1 requirements.
6.How does Aetrix verify that MMSZ4692ET1 is sourced from the original manufacturer or authorized distributors?
All MMSZ4692ET1 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 MMSZ4692ET1 meets industry standards.
7.What is the process for return or replacement of MMSZ4692ET1?
All MMSZ4692ET1 units undergo pre-shipment inspection (PSI). If there is an issue with MMSZ4692ET1, 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 MMSZ4692ET1 part is unused and in its original packaging.
Return procedure for MMSZ4692ET1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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