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Nexperia USA Inc. SZMM3Z3V6T1GX
- Part No.:
- SZMM3Z3V6T1GX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
SZMM3Z3V6T1GX.pdf
- Description:
- DIODE ZENER 3.6V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:26,256
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Product details
Overview
SZMM3Z3V6T1GX from Nexperia is a Zener voltage regulator diode in SOD323 (SC-76) package, rated for 3.6 V nominal Zener voltage at 5 mA, with ±5 % tolerance, 5.0 Ω differential resistance, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SZMM3Z3V6T1GX datasheet, SZMM3Z3V6T1GX pinout, SZMM3Z3V6T1GX application, or SZMM3Z3V6T1GX equivalent, this device serves as a precision low-voltage reference and overvoltage clamp in space-constrained power rails, ESD-protected I/O stages, and automotive sensor bias networks.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage under varying current loads, with low dynamic impedance enabling tight regulation across 0.5–5 mA test currents. Its thermal coefficient of −3.5 mV/K ensures predictable drift over temperature.
Designed for surface-mount reliability, it supports non-repetitive 40 W surge pulses (tp = 100 µs) and continuous 300 mW dissipation on FR4 PCBs. The cathode-marked SOD323 footprint enables automated placement and reflow compatibility per JEDEC standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.40 V to 3.80 V at IZ = 5 mA - defines regulated output range for low-voltage reference circuits |
| Differential Resistance (rdiff) | 5.0 Ω max - ensures minimal voltage shift under load current variation (e.g., ±10 mA change → ±50 mV shift) |
| Reverse Current (IR) | ≤ 1000 µA at VR = 3.0 V - guarantees low leakage before breakdown onset |
| Forward Voltage (VF) | 1.1 V max at IF = 100 mA - supports bidirectional clamping when used with series resistor |
| Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C - sets maximum steady-state thermal budget on standard FR4 PCB |
| Junction Temperature (Tj) | −55 °C to +150 °C - enables operation in under-hood automotive environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD (HBM ≥ 2 kV) |
Pinout & Package
Package: SOD323 (SC-76), 2-pin surface-mount plastic package with cathode marked by bar on top surface. Dimensions: 1.8 mm × 1.35 mm × 0.95 mm (L × W × H); recommended reflow solder land pattern per Figure 12.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; reverse-biased during Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for voltage regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low Zener impedance | 5.0 Ω max enables <±30 mV regulation error over 1–5 mA load current swing |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and body electronics |
| Small-footprint SOD323 | 1.8 mm × 1.35 mm area saves >60 % board space vs. DO-35 or SOD123 packages |
| Stable temperature coefficient | −3.5 mV/K allows predictable bias point shift in sensor front-ends across −40 °C to +125 °C |
| High surge robustness | 40 W non-repetitive peak power withstand supports transient suppression in CAN/LIN bus nodes |
Applications
| Automotive Sensor Biasing | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 3.6 V reference to analog output sensors (e.g., pressure, temperature) in engine control units. IC Role / Device Role / Timing Role: Zener voltage reference source establishing precise bias point for signal conditioning amplifiers. Use Value: Maintains ±2 % reference accuracy over −40 °C to +125 °C ambient, ensuring ADC linearity within automotive ASIL-B requirements. |
Use Scenario: Clamping USB 3.3 V VBUS line against ESD transients and hot-swap overshoot. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed between VBUS and GND with series current-limiting resistor. Use Value: Limits voltage excursion to ≤3.8 V during 8 kV HBM events while drawing <100 µA leakage at normal operating voltage. |
| Industrial PLC Input Protection | Low-Power MCU Reset Circuit |
Use Scenario: Protecting 3.3 V digital input channels on programmable logic controllers from field-wiring surges. IC Role / Device Role / Timing Role: Reverse-biased Zener shunt element absorbing induced transients on 24 V to 3.3 V level-shifted inputs. Use Value: Withstands 40 W pulse surges (100 µs) without degradation, preserving long-term channel integrity in factory-floor environments. |
Use Scenario: Generating clean reset threshold for ARM Cortex-M0+ microcontrollers requiring 3.6 V brown-out detection. IC Role / Device Role / Timing Role: Precision voltage reference feeding comparator input in discrete reset generator circuit. Use Value: Delivers 3.6 V ±5 % tolerance and <50 mV hysteresis window, meeting JEDEC JESD78 Class II reset timing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B3V6,115 (Nexperia) | Same 3.6 V rating, SOD323 package, but ±2 % tolerance and 150 mW Ptot | Higher precision but lower power handling; unsuitable for >150 mW continuous dissipation | Select when tighter voltage tolerance outweighs surge capability needs |
| MMSZ4685T1G (ON Semiconductor) | 3.6 V nominal, SOD123 package, 500 mW Ptot, no AEC-Q101 qualification | Larger footprint (+45 % area), higher power, but unqualified for automotive use | Select for industrial power supplies where board space is less constrained and automotive compliance is not required |
Compared with BZX384-B3V6,115, SZMM3Z3V6T1GX trades ±2 % tolerance for AEC-Q101 qualification and 300 mW power handling; versus MMSZ4685T1G, it offers automotive reliability in half the footprint but at lower absolute power rating.
Availability
SZMM3Z3V6T1GX is available at Aetrix Electronics and suitable for automotive sensor modules, USB interface protection circuits, industrial PLC input stages, and low-power MCU reset networks requiring stable component supply and AEC-Q101 assurance.
Supply support for SZMM3Z3V6T1GX 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 focused on high-volume, high-reliability essential semiconductors for automotive, industrial, and consumer markets.
SZMM3Z3V6T1GX belongs to the SZMM3Z series of AEC-Q101-qualified Zener diodes designed specifically for space-constrained, mission-critical voltage regulation and clamping in automotive electronics.
FAQ
What is the maximum continuous reverse current this Zener can handle at 3.6 V?
The device is rated for 5 mA test current in Zener mode, with maximum continuous reverse current limited by power dissipation: at 3.6 V, IZ ≤ 83 mA yields 300 mW. However, derating is required above 25 °C ambient-junction temperature must stay below 150 °C using Rth(j-a) = 415 K/W.
Can SZMM3Z3V6T1GX be used as a bidirectional ESD protector?
No-it functions only as a unidirectional Zener in reverse bias. For bidirectional ESD protection, pair it with a forward-biased diode or use a dedicated TVS like PESD3V3U1BB. Its 1.1 V forward drop at 100 mA is insufficient for low-voltage clamping in both directions.
How does the −3.5 mV/K temperature coefficient affect circuit performance?
At 3.6 V nominal, the coefficient causes ~−0.42 V drift from −40 °C to +125 °C (165 K × −3.5 mV/K). In precision references, this requires compensation via resistor networks or selection of higher-VZ diodes with near-zero coefficients (e.g., 5.6 V types).
Is the SOD323 package compatible with standard reflow profiles?
Yes-the SOD323 outline meets JEDEC J-STD-020D moisture sensitivity level 1 and supports peak reflow temperatures up to 260 °C. Recommended solder land dimensions (0.6 mm × 1.1 mm per pad) and stencil aperture (0.5 mm × 0.9 mm) are specified in Figure 12 of the datasheet.
SZMM3Z3V6T1GX 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):
- 3.6 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 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
SZMM3Z3V6T1GX FAQ
1.How can I place an order for SZMM3Z3V6T1GX through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM3Z3V6T1GX 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 SZMM3Z3V6T1GX reliable?
The price and inventory of SZMM3Z3V6T1GX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM3Z3V6T1GX is usually 5 days.
3.What payment methods are accepted for SZMM3Z3V6T1GX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM3Z3V6T1GX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM3Z3V6T1GX?
SZMM3Z3V6T1GX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM3Z3V6T1GX 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 SZMM3Z3V6T1GX?
For technical support, including SZMM3Z3V6T1GX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM3Z3V6T1GX requirements.
6.How does Aetrix verify that SZMM3Z3V6T1GX is sourced from the original manufacturer or authorized distributors?
All SZMM3Z3V6T1GX 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 SZMM3Z3V6T1GX meets industry standards.
7.What is the process for return or replacement of SZMM3Z3V6T1GX?
All SZMM3Z3V6T1GX units undergo pre-shipment inspection (PSI). If there is an issue with SZMM3Z3V6T1GX, 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 SZMM3Z3V6T1GX part is unused and in its original packaging.
Return procedure for SZMM3Z3V6T1GX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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