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Nexperia USA Inc. SZMM3Z62VT1GX
- Part No.:
- SZMM3Z62VT1GX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
SZMM3Z62VT1GX.pdf
- Description:
- DIODE ZENER 62V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:20,688
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Product details
Overview
SZMM3Z62VT1GX from Nexperia is a Zener voltage regulator diode in SOD323 (SC-76) package, rated for 62 V nominal Zener voltage (58.0–66.0 V), 300 mW total power dissipation, ≤0.05 Ω differential resistance at IZ = 2 mA, and AEC-Q101 qualified for automotive use. It provides stable voltage reference in low-power biasing, overvoltage protection, and precision clamping circuits.
For engineers reviewing the SZMM3Z62VT1GX datasheet, SZMM3Z62VT1GX pinout, SZMM3Z62VT1GX application, or SZMM3Z62VT1GX equivalent, this page delivers verified electrical characteristics, thermal behavior, junction-to-ambient resistance (415 K/W), cathode/anode terminal mapping, and automotive-grade reliability context - all critical for ESD-tolerant, space-constrained designs requiring ±5 % tolerance and low capacitance (35 pF).
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable 62 V reference across load variations, with temperature coefficient of +0.4 to +3.7 mV/K at IZ = 2 mA. Its low 35 pF capacitance at 1 MHz and VR = 0 V supports high-frequency noise suppression without signal distortion.
The device sustains non-repetitive peak reverse power up to 40 W (tp = 100 µs, square wave) while limiting continuous dissipation to 300 mW at 25 °C ambient on FR4 PCB. Junction temperature remains within safe bounds (Tj ≤ 150 °C) under defined thermal resistance conditions (Rth(j-a) = 415 K/W, Rth(j-sp) = 110 K/W).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage VZ | 58.0 V min to 66.0 V max at IZ = 2 mA - defines tight regulation window for 62 V reference applications |
| Differential resistance rdiff | ≤ 0.05 Ω at IZ = 2 mA - ensures minimal output voltage shift under load current variation |
| Total power dissipation Ptot | 300 mW at Tamb = 25 °C on FR4 PCB - sets maximum continuous DC power handling in standard layout |
| Reverse current IR | ≤ 450 µA at VR = 58 V - quantifies leakage before breakdown, critical for standby power integrity |
| Diode capacitance Cd | 35 pF at f = 1 MHz, VR = 0 V - enables effective high-frequency bypass without resonance issues |
| Thermal resistance Rth(j-a) | 415 K/W in free air - determines junction temperature rise per watt, guiding thermal derating above 25 °C |
| AEC-Q101 qualification | Qualified for automotive discrete semiconductors - confirms reliability for under-hood and ADAS power rail protection |
Pinout & Package
Package: SOD323 (SC-76), surface-mount plastic package with 2 leads; dimensions 1.8 mm × 1.35 mm × 0.95 mm (L × W × H); cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal - essential for correct polarity in clamp/regulator configurations |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased operation requires anode at lower voltage than cathode |
Key Features
| Feature | Design Value |
|---|---|
| Low differential resistance | 0.05 Ω at 2 mA - maintains <±10 mV output shift across ±1 mA load change, improving regulation accuracy |
| Automotive qualification | AEC-Q101 compliant - validated for temperature cycling, humidity, mechanical shock, and lifetime stress in automotive environments |
| Small footprint | SOD323 package (1.8 × 1.35 mm) - saves board area in dense layouts like infotainment power supplies and sensor interface modules |
| Low capacitance | 35 pF at 1 MHz - minimizes high-frequency signal coupling in RF-adjacent circuits such as CAN transceiver bias networks |
| Tight voltage tolerance | ±5 % nominal Zener voltage - reduces need for post-production trimming in factory-set reference circuits |
Applications
| Automotive Sensor Biasing | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Providing stable 62 V reference for analog front-end amplifiers in engine knock sensors and exhaust gas oxygen sensors. IC Role / Device Role / Timing Role: Zener diode acts as precision shunt voltage reference and overvoltage clamp during load dump transients. Use Value: Maintains amplifier input common-mode range integrity under ISO 7637-2 Pulse 5a (120 V/100 ms), preventing ADC saturation and data loss. |
Use Scenario: Protecting 24 V DC digital input channels in programmable logic controllers against field-wiring surges and induced transients. IC Role / Device Role / Timing Role: Shunt clamping element that diverts surge energy away from optocoupler input stages. Use Value: Limits transient voltage to ≤66 V with <100 ns response, preserving isolation barrier integrity per IEC 61000-4-5 Level 3 (2 kV) |
| Medical Instrument Power Rail Clamp | Telecom Line Interface Reference |
|
Use Scenario: Clamping auxiliary 60 V bias rails in portable ultrasound imaging systems where space and reliability are critical. IC Role / Device Role / Timing Role: Standby-mode voltage limiter that activates only during fault conditions to protect downstream LDOs. Use Value: Dissipates up to 40 W peak surge (100 µs) without degradation, meeting IEC 60601-1 creepage and safety margin requirements. |
Use Scenario: Establishing stable 62 V reference for line driver biasing in GPON OLT optical line terminals operating on -48 V DC telecom plants. IC Role / Device Role / Timing Role: Precision Zener reference setting common-mode voltage for differential line drivers. Use Value: Enables <±0.5 % reference stability over -40 to +85 °C, supporting 2.5 Gbps signal integrity in burst-mode upstream transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B62,115 (Nexperia) | SOD-323 package, same 62 V rating, but 300 mW Ptot, higher rdiff (0.1 Ω), no AEC-Q101 claim | General industrial use only; lacks automotive qualification and tighter rdiff | Select when AEC-Q101 is not required and cost sensitivity outweighs regulation precision |
| MMBZ5262B-7-F (Diodes Inc.) | SOT-23 package, 62 V, 350 mW Ptot, rdiff = 0.2 Ω, no AEC-Q101, larger footprint (2.9 × 1.3 mm) | Higher power handling but less precise regulation and no automotive validation | Choose for legacy SOT-23 board compatibility where thermal margin > regulation accuracy |
Compared with BZX384-B62 and MMBZ5262B, SZMM3Z62VT1GX offers superior regulation precision (0.05 Ω vs ≥0.1 Ω rdiff), guaranteed automotive qualification, and smallest footprint - making it optimal for new AEC-compliant designs where board space and voltage stability are constrained.
Availability
SZMM3Z62VT1GX is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC input stages, medical imaging power supplies, and telecom line interface circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SZMM3Z62VT1GX 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 leading semiconductor manufacturer headquartered in Nijmegen, Netherlands, specializing in high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
SZMM3Z series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for robust voltage regulation and transient clamping in harsh automotive environments - emphasizing low rdiff, tight tolerance, and miniature SMD packaging.
FAQ
What is the maximum non-repetitive peak reverse power the SZMM3Z62VT1GX can withstand?
The SZMM3Z62VT1GX sustains up to 40 W of non-repetitive peak reverse power under defined test conditions: 100 µs square-wave pulse, Tj = 25 °C prior to surge. This capability enables protection against short-duration transients like load dump in 24 V automotive systems without permanent damage.
How does the temperature coefficient affect regulation accuracy over automotive temperature ranges?
At IZ = 2 mA, SZMM3Z62VT1GX exhibits a temperature coefficient of +0.4 to +3.7 mV/K. Over −40 °C to +125 °C, this results in a total VZ drift of approximately ±220 mV - well within its ±5 % initial tolerance band (±3.1 V), ensuring stable reference performance across full automotive ambient range.
Can SZMM3Z62VT1GX be used in parallel for higher power dissipation?
No - Zener diodes exhibit negative temperature coefficients below ~5 V and positive above, but even within the same series, minor VZ mismatches cause current hogging. The SZMM3Z62VT1GX is not characterized or recommended for parallel operation; instead, use a single higher-rated device or external current-sharing resistors if increased power handling is needed.
What is the significance of the 'DV' marking code on the SZMM3Z62VT1GX package?
The 'DV' marking code uniquely identifies the SZMM3Z62VT1GX variant within the SZMM3Z series, per Nexperia's official marking table. It appears as a laser-etched or molded identifier on the cathode-side surface of the SOD323 package and corresponds exclusively to the 62 V nominal Zener voltage type - enabling rapid visual verification during assembly and inspection.
SZMM3Z62VT1GX 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):
- 62 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 215 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 43.4 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
SZMM3Z62VT1GX FAQ
1.How can I place an order for SZMM3Z62VT1GX through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM3Z62VT1GX 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 SZMM3Z62VT1GX reliable?
The price and inventory of SZMM3Z62VT1GX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM3Z62VT1GX is usually 5 days.
3.What payment methods are accepted for SZMM3Z62VT1GX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM3Z62VT1GX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM3Z62VT1GX?
SZMM3Z62VT1GX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM3Z62VT1GX 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 SZMM3Z62VT1GX?
For technical support, including SZMM3Z62VT1GX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM3Z62VT1GX requirements.
6.How does Aetrix verify that SZMM3Z62VT1GX is sourced from the original manufacturer or authorized distributors?
All SZMM3Z62VT1GX 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 SZMM3Z62VT1GX meets industry standards.
7.What is the process for return or replacement of SZMM3Z62VT1GX?
All SZMM3Z62VT1GX units undergo pre-shipment inspection (PSI). If there is an issue with SZMM3Z62VT1GX, 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 SZMM3Z62VT1GX part is unused and in its original packaging.
Return procedure for SZMM3Z62VT1GX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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