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Nexperia USA Inc. SZMM3Z13VT1GX
- Part No.:
- SZMM3Z13VT1GX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
SZMM3Z13VT1GX.pdf
- Description:
- DIODE ZENER 13V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:29,189
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Product details
Overview
SZMM3Z13VT1GX from Nexperia is a Zener voltage regulator diode in SOD323 (SC-76) package, designed for precision voltage reference and overvoltage protection in low-power circuits. It delivers a nominal 13 V Zener voltage (12.47–13.96 V at IZ = 5 mA), ±5 % tolerance, 10 Ω differential resistance, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SZMM3Z13VT1GX datasheet, SZMM3Z13VT1GX pinout, SZMM3Z13VT1GX application, or SZMM3Z13VT1GX equivalent, key selection criteria include Zener voltage accuracy at 5 mA, thermal resistance (Rth(j-a) = 415 K/W), non-repetitive surge capability (40 W), and SOD323 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage under varying load and temperature conditions. Its 13 V nominal working voltage targets mid-range regulation needs, with a temperature coefficient of +7.0 mV/K at IZ = 5 mA - indicating positive drift that compensates for other circuit components' negative coefficients.
The device supports both steady-state regulation (Ptot = 300 mW at Tamb = 25 °C) and transient suppression (PZSM = 40 W, tp = 100 µs), enabled by low junction-to-solder-point thermal resistance (110 K/W) and robust silicon construction qualified per AEC-Q101.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 12.47–13.96 V at IZ = 5 mA - defines tight regulation window for 13 V rail stabilization |
| Differential Resistance rdiff | 10 Ω - ensures minimal output voltage shift under ±1 mA load variation |
| Temperature Coefficient SZ | +7.0 mV/K at IZ = 5 mA - enables predictable, linear voltage drift across −55 to +150 °C ambient |
| Total Power Dissipation Ptot | 300 mW at Tamb = 25 °C on FR4 PCB - sets continuous power limit for thermal design |
| Non-repetitive Peak Power PZSM | 40 W (tp = 100 µs, square wave) - supports ESD and surge immunity without clamping failure |
| Reverse Current IR | ≤ 80 µA at VR = 10 V - guarantees low leakage in standby or battery-powered modes |
| Junction Temperature Tj | −55 to +150 °C - enables operation in under-hood automotive and industrial environments |
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; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode (A) | Connected to ground or lower-potential reference; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Low differential resistance | 10 Ω ensures <10 mV output shift for ±1 mA load change - critical for sensor biasing stability |
| Wide operating temperature range | −55 °C to +150 °C ambient enables deployment in engine control units and powertrain modules |
| Small SOD323 footprint | 2.7 mm × 1.6 mm area saves board space in compact modules like ADAS camera ECUs and body controllers |
| Controlled Zener voltage tolerance | ±5 % at IZ = 5 mA allows direct replacement in legacy 13 V reference designs without recalibration |
Applications
| Automotive Sensor Biasing | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Providing stable 13 V reference for analog front-end circuits in wheel speed or pressure sensors. IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage reference, absorbing excess current to clamp input voltage during transients. Use Value: Maintains ADC accuracy within ±0.5 % despite battery voltage fluctuations from 9 V to 16 V. |
Use Scenario: Protecting 24 V digital input channels in programmable logic controllers against surges and miswiring. IC Role / Device Role / Timing Role: Functions as overvoltage clamp, diverting >30 V spikes to ground before they reach isolation ICs. Use Value: Withstands 40 W non-repetitive surges (IEC 61000-4-5 Level 3), eliminating need for external TVS arrays. |
| Consumer Power Adapter Feedback | Medical Diagnostic Equipment Reference |
|
Use Scenario: Setting feedback threshold in secondary-side regulation of USB-C PD adapters delivering 12–15 V outputs. IC Role / Device Role / Timing Role: Provides precise 13 V reference to optocoupler input, enabling tight output voltage control. Use Value: ±5 % VZ tolerance and +7.0 mV/K TC allow stable regulation across full operating temperature range. |
Use Scenario: Generating calibrated reference voltage for analog signal conditioning in portable ultrasound probe electronics. IC Role / Device Role / Timing Role: Serves as low-noise, low-drift voltage reference for PGA gain-setting networks. Use Value: 10 Ω rdiff and 80 µA max IR minimize offset error and power consumption in battery-operated devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B13 | Same 13 V nominal, but ±5 % tolerance achieved at IZ = 5 mA; higher rdiff = 20 Ω; not AEC-Q101 qualified | Limited to commercial-grade consumer products; unsuitable for automotive under-hood use | Select when cost is primary concern and AEC-Q101 compliance is unnecessary |
| MMSZ5242BT1G | 13 V nominal, ±5 % at IZ = 20 mA; rdiff = 30 Ω; Ptot = 350 mW; AEC-Q101 qualified but larger SOD123 package | Requires larger PCB area; higher power rating suits higher-current regulation | Choose if higher continuous power handling (>300 mW) is required and board space permits SOD123 |
Compared with BZX384-B13 and MMSZ5242BT1G, SZMM3Z13VT1GX uniquely balances AEC-Q101 compliance, ultra-small SOD323 footprint, and low 10 Ω differential resistance - making it optimal for space-constrained automotive and industrial modules requiring precise, thermally stable 13 V references.
Availability
SZMM3Z13VT1GX is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC input stages, and medical diagnostic equipment requiring stable component supply with guaranteed long-term continuity.
Supply support for SZMM3Z13VT1GX 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 discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.
The SZMM3Z series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for precision voltage regulation and transient protection in harsh-environment automotive and industrial control systems.
FAQ
What is the maximum continuous forward current for SZMM3Z13VT1GX?
The device is a Zener diode intended for reverse-bias operation; its forward current rating is not a design parameter. However, absolute maximum forward current is 200 mA per limiting values table, with typical VF = 1.1 V at IF = 100 mA - sufficient for indicator LED drive or polarity protection, but not for sustained conduction.
Can SZMM3Z13VT1GX replace older 1N4742A Zener diodes in existing designs?
No - SZMM3Z13VT1GX is a surface-mount SOD323 device rated for 300 mW, while 1N4742A is through-hole DO-41 rated for 1 W. Direct replacement requires PCB redesign, thermal analysis, and verification of surge capability (40 W vs. 1N4742A's ~50 W), as well as validation of ±5 % tolerance alignment at 5 mA test current.
How does the +7.0 mV/K temperature coefficient affect system-level voltage stability?
The positive temperature coefficient means VZ increases by ~7 mV per °C rise in junction temperature. At IZ = 5 mA, this yields ~140 mV drift over a 20 °C ambient swing - useful for compensating negative TC components (e.g., op-amp inputs), but requires derating or compensation in high-precision references where <50 mV total drift is required.
Is SZMM3Z13VT1GX suitable for bidirectional ESD protection?
No - it is a unidirectional Zener diode optimized for reverse-bias regulation. For bidirectional ESD protection (e.g., IEC 61000-4-2), dedicated TVS diodes such as PESD5V0S1BA or ESD56051D are required; SZMM3Z13VT1GX lacks symmetric clamping behavior and specified ESD ratings beyond its 40 W non-repetitive surge capability.
SZMM3Z13VT1GX 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):
- 13 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 10 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
SZMM3Z13VT1GX FAQ
1.How can I place an order for SZMM3Z13VT1GX through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM3Z13VT1GX 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 SZMM3Z13VT1GX reliable?
The price and inventory of SZMM3Z13VT1GX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM3Z13VT1GX is usually 5 days.
3.What payment methods are accepted for SZMM3Z13VT1GX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM3Z13VT1GX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM3Z13VT1GX?
SZMM3Z13VT1GX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM3Z13VT1GX 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 SZMM3Z13VT1GX?
For technical support, including SZMM3Z13VT1GX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM3Z13VT1GX requirements.
6.How does Aetrix verify that SZMM3Z13VT1GX is sourced from the original manufacturer or authorized distributors?
All SZMM3Z13VT1GX 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 SZMM3Z13VT1GX meets industry standards.
7.What is the process for return or replacement of SZMM3Z13VT1GX?
All SZMM3Z13VT1GX units undergo pre-shipment inspection (PSI). If there is an issue with SZMM3Z13VT1GX, 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 SZMM3Z13VT1GX part is unused and in its original packaging.
Return procedure for SZMM3Z13VT1GX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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