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Nexperia USA Inc. SZMM3Z5V6T1GX
- Part No.:
- SZMM3Z5V6T1GX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
SZMM3Z5V6T1GX.pdf
- Description:
- DIODE ZENER 5.6V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:89,368
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Product details
Overview
SZMM3Z5V6T1GX from Nexperia is a Zener voltage regulator diode in SOD323 (SC-76) package, designed for precision low-voltage regulation at 5.6 V nominal with ±5 % tolerance, 1.0 Ω differential resistance at IZ = 5 mA, and AEC-Q101 qualification for automotive use in power rail clamping and reference circuits.
For engineers reviewing the SZMM3Z5V6T1GX datasheet, SZMM3Z5V6T1GX pinout, SZMM3Z5V6T1GX application, or SZMM3Z5V6T1GX equivalent, this page delivers verified electrical characteristics, thermal behavior, marking code (LF), junction-to-ambient thermal resistance (415 K/W), and automotive-grade reliability data - all critical for ESD protection, voltage reference, and biasing in compact PCB designs.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 5.6 V across its terminals under regulated current conditions (IZ = 5 mA), with low dynamic impedance (1.0 Ω) ensuring minimal output voltage variation with load changes. Its temperature coefficient of −2.0 mV/K at IZ = 5 mA provides predictable drift behavior over temperature.
The device supports non-repetitive surge handling up to 40 W (tp = 100 µs, square wave) while maintaining continuous dissipation of 300 mW at Tamb = 25 °C on FR4 PCB. Cathode-anode polarity is marked by a bar on the SOD323 body, enabling unambiguous orientation during automated placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 5.6 V (min 5.31 V, max 5.92 V at IZ = 5 mA) - defines precise clamping threshold for 5 V rail stabilization |
| Differential Resistance | 1.0 Ω (at IZ = 5 mA) - ensures <10 mV output shift per 10 mA load change, critical for reference stability |
| Temperature Coefficient | −2.0 mV/K (at IZ = 5 mA) - quantifies negative drift rate, enabling accurate thermal compensation in analog circuits |
| Reverse Current | 100 µA max at VR = 4.0 V - confirms sharp knee and low leakage below breakdown, essential for low-power standby operation |
| Total Power Dissipation | 300 mW (Tamb = 25 °C, FR4 PCB) - sets maximum continuous DC power budget for thermal design |
| Junction Temperature Limit | 150 °C - defines absolute thermal ceiling for reliability in under-hood automotive environments |
| Non-repetitive Peak Power | 40 W (tp = 100 µs) - enables transient overvoltage suppression without failure in surge-prone systems |
Pinout & Package
Package: SOD323 (SC-76), surface-mount plastic case with 2 leads, 2.7 mm × 1.6 mm footprint, 0.45 mm height, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; accepts reverse-bias current to establish Zener voltage drop |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics per stress test requirements |
| Low differential resistance | 1.0 Ω at 5 mA enables high-precision voltage references with <±5 mV regulation error over load range |
| Small SOD323 footprint | 2.7 mm × 1.6 mm area saves board space in dense layouts such as ADAS sensor modules and infotainment power supplies |
| ±5 % voltage tolerance | Tight initial accuracy reduces need for post-production trimming in factory calibration workflows |
| 415 K/W junction-to-ambient Rth | Enables thermal modeling for derating curves in ambient temperatures up to +105 °C without heatsinking |
Applications
| Automotive ECU Power Rail Clamping | Industrial Sensor Reference Voltage |
|---|---|
Use Scenario: Protecting microcontroller I/O pins and ADC inputs from transients on 5 V supply lines in engine control units. IC Role / Device Role / Timing Role: Zener diode acting as shunt regulator and overvoltage clamp in parallel with load. Use Value: 40 W non-repetitive surge rating absorbs ISO 7637-2 pulse 1/2a events without degradation, preserving system uptime. |
Use Scenario: Providing stable 5.6 V reference for 12-bit analog front-ends in industrial pressure transmitters. IC Role / Device Role / Timing Role: Precision voltage reference source with low dynamic impedance for ratiometric ADC excitation. Use Value: 1.0 Ω differential resistance limits reference error to <0.5 LSB over 1–10 mA load variation, meeting EN 61000-6-2 immunity requirements. |
| Consumer USB-C Port Protection | Medical Wearable Bias Network |
Use Scenario: Clamping VBUS line against ESD strikes and hot-swap overshoot in portable charging accessories. IC Role / Device Role / Timing Role: Fast-response shunt protector placed adjacent to USB-C connector. Use Value: 100 µA max reverse leakage at 4.0 V minimizes standby current drain in battery-powered devices, extending runtime by >8 %. |
Use Scenario: Generating stable bias voltages for op-amp signal conditioning in FDA-cleared wearable ECG monitors. IC Role / Device Role / Timing Role: Low-drift Zener reference in ultra-low-power analog signal chain. Use Value: −2.0 mV/K temperature coefficient allows predictable offset correction in firmware, reducing calibration complexity by eliminating external thermistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B5V6,115 | Same 5.6 V nominal, ±5 % tolerance, but SOD323 package with 400 mW Ptot; higher 1.5 Ω rdiff at 5 mA | Higher power rating suits higher-current bias networks; less precise regulation due to elevated impedance | Select when >300 mW continuous dissipation is required and 0.5 Ω higher rdiff is acceptable |
| MMSZ5232BS-7-F | 5.6 V, ±5 %, SOD-123 package (larger); 500 mW Ptot, 2.0 Ω rdiff, no AEC-Q101 qualification | Larger footprint eases hand-soldering but lacks automotive qualification; higher thermal resistance (500 K/W) | Choose for cost-sensitive industrial prototypes where AEC-Q101 is not mandated and board space permits |
Compared with BZX384-B5V6,115 and MMSZ5232BS-7-F, SZMM3Z5V6T1GX offers superior regulation precision (1.0 Ω vs. ≥1.5 Ω), automotive qualification, and optimized thermal performance in the smallest SOD323 footprint - making it the preferred choice for space-constrained, safety-aware designs requiring repeatable 5.6 V clamping.
Availability
SZMM3Z5V6T1GX is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor reference circuits, USB-C port clamping, and medical wearable bias networks requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SZMM3Z5V6T1GX 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
Nexperia is a global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET solutions with focus on efficiency, miniaturization, and automotive-grade robustness.
SZMM3Z5V6T1GX belongs to the SZMM3Z series of AEC-Q101-qualified Zener diodes engineered specifically for precision voltage regulation and transient suppression in space-constrained automotive and industrial power management systems.
FAQ
What is the marking code for SZMM3Z5V6T1GX?
The marking code for SZMM3Z5V6T1GX is 'LF', laser-etched on the cathode side of the SOD323 package. This two-character code uniquely identifies the 5.6 V variant within the SZMM3Z series and aligns with Nexperia's standardized SOD323 marking scheme documented in Table 4 of the datasheet.
Can SZMM3Z5V6T1GX replace a 5.1 V Zener in an existing design?
No - SZMM3Z5V6T1GX has a nominal Zener voltage of 5.6 V (5.31–5.92 V), which exceeds the 5.1 V (4.84–5.37 V) range of SZMM3Z5V1T1GX. Substituting it would raise the regulation threshold by ~0.5 V, potentially causing overvoltage stress on downstream components or violating reference voltage tolerances in precision circuits.
What is the maximum forward current rating for this Zener diode?
The maximum continuous forward current (IF) is 200 mA per Absolute Maximum Ratings (Table 5). At 100 mA forward current, typical forward voltage is 1.1 V; at 10 mA, it is 0.9 V. Forward conduction is not its intended operating mode, and sustained forward bias above 200 mA risks thermal runaway and permanent damage.
How does the −2.0 mV/K temperature coefficient affect circuit performance?
The −2.0 mV/K coefficient means the Zener voltage decreases by 2.0 mV per degree Celsius rise in junction temperature at IZ = 5 mA. In a 5.6 V reference, this yields ~11.2 mV total drift over a 56 °C rise (e.g., from 25 °C to 81 °C), requiring compensation in high-accuracy applications or limiting use to ambient-stable environments.
SZMM3Z5V6T1GX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 2.5 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
SZMM3Z5V6T1GX FAQ
1.How can I place an order for SZMM3Z5V6T1GX through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM3Z5V6T1GX 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 SZMM3Z5V6T1GX reliable?
The price and inventory of SZMM3Z5V6T1GX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM3Z5V6T1GX is usually 5 days.
3.What payment methods are accepted for SZMM3Z5V6T1GX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM3Z5V6T1GX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM3Z5V6T1GX?
SZMM3Z5V6T1GX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM3Z5V6T1GX 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 SZMM3Z5V6T1GX?
For technical support, including SZMM3Z5V6T1GX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM3Z5V6T1GX requirements.
6.How does Aetrix verify that SZMM3Z5V6T1GX is sourced from the original manufacturer or authorized distributors?
All SZMM3Z5V6T1GX 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 SZMM3Z5V6T1GX meets industry standards.
7.What is the process for return or replacement of SZMM3Z5V6T1GX?
All SZMM3Z5V6T1GX units undergo pre-shipment inspection (PSI). If there is an issue with SZMM3Z5V6T1GX, 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 SZMM3Z5V6T1GX part is unused and in its original packaging.
Return procedure for SZMM3Z5V6T1GX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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