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Nexperia USA Inc. SZMM5Z30VT5GF
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- Part No.:
- SZMM5Z30VT5GF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z30VT5GF.pdf
- Description:
- DIODE ZENER 30V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:8,980
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Product details
Overview
SZMM5Z30VT5GF from Nexperia is a 30 V ±2 % tolerance Zener diode in SOD523 (SC-79) package, rated for 300 mW total power dissipation and 40 W non-repetitive peak reverse power, with 24.4–29.4 V reverse breakdown range at IZ = 2 mA and 50 Ω typical differential resistance - used for precision voltage reference and overvoltage clamping in automotive sensor signal conditioning circuits.
For engineers reviewing the SZMM5Z30VT5GF datasheet, SZMM5Z30VT5GF pinout, SZMM5Z30VT5GF application, or SZMM5Z30VT5GF equivalent, this device supports AEC-Q101-compliant designs requiring stable low-current regulation, compact footprint, and predictable temperature coefficient (±0.05 mV/K) across −55 °C to +150 °C ambient operation.
Technical Context
This Zener diode operates in reverse-biased breakdown mode with a nominal 30 V working voltage, specified at IZ = 2 mA and Tj = 25 °C. Its differential resistance of ≤50 Ω ensures tight regulation under load variation, while its −55 °C to +150 °C operating ambient range and AEC-Q101 qualification confirm suitability for under-hood automotive environments.
The device exhibits a temperature coefficient of +24.4 to +29.4 mV/K at IZ = 2 mA, enabling predictable drift compensation in reference circuits. Its 350 K/W junction-to-ambient thermal resistance (on FR4 with 35 mm² copper) and 65 K/W junction-to-solder-point resistance define thermal performance limits for PCB layout and power derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 30 V ±2 % - defines precise clamping threshold for 28.4–31.6 V regulation window at IZ = 2 mA |
| Total Power Dissipation | 300 mW at Tamb = 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Non-repetitive Peak Reverse Power | 40 W (tp = 100 µs, square wave) - enables transient surge suppression without failure |
| Differential Resistance | ≤50 Ω at IZ = 2 mA - ensures <150 mV output shift per 3 mA current change, critical for reference stability |
| Reverse Current (IR) | ≤300 µA at VR = 24 V - guarantees low leakage in high-impedance bias networks |
| Junction Temperature Limit | 150 °C - defines absolute thermal ceiling for reliability in engine control modules |
| AEC-Q101 Qualified | Yes - validated for automotive-grade stress testing including HTOL, TC, HAST, and ESD |
Pinout & Package
Package: SOD523 (SC-79), ultra-small surface-mount plastic package with 2 leads, 1.25 mm × 0.85 mm body size and 0.17 mm profile - optimized for space-constrained automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked side) | Cathode (K) | Connected to regulated output node; marking bar identifies cathode for correct orientation during placement |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction when clamping or regulating |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables tighter regulation than standard 5 % Zeners, reducing need for post-calibration in sensor front-ends |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine management, ADAS sensors, and body control modules |
| Low 50 Ω differential resistance | Minimizes output voltage deviation under varying load currents, improving accuracy in feedback loops |
| Ultra-compact SOD523 package | Reduces board area by >60 % vs. SOD-123, supporting high-density layouts in ECUs and camera modules |
| −55 °C to +150 °C operating range | Supports direct mounting near heat sources (e.g., power stages) without external thermal shielding |
Applications
| Automotive Engine Control Unit (ECU) Reference | ADAS Camera Module Bias Supply |
|---|---|
|
Use Scenario: Providing stable 30 V reference for analog-to-digital converter (ADC) input scaling in engine knock sensor interface circuitry. IC Role / Device Role / Timing Role: Zener diode acts as precision shunt regulator, maintaining fixed reference voltage despite battery voltage fluctuations (9–16 V) and load transients. Use Value: Enables ±0.5 % ADC measurement accuracy over full temperature range due to low rdiff and AEC-Q101 thermal stability. |
Use Scenario: Clamping transient voltages on image sensor analog supply rail during hot-plug events in rear-view camera systems. IC Role / Device Role / Timing Role: Functions as fast-acting overvoltage protector, absorbing 40 W surges within 100 µs to prevent sensor IC damage. Use Value: Eliminates need for external TVS diodes by integrating robust surge capability into same footprint as reference function. |
| Body Control Module (BCM) CAN Transceiver Protection | Electric Power Steering (EPS) Motor Driver Feedback |
|
Use Scenario: Protecting CAN_H line against ESD and load dump spikes in vehicle door module communication interfaces. IC Role / Device Role / Timing Role: Shunt clamp placed between CAN_H and ground, conducting only above 30 V to preserve signal integrity below threshold. Use Value: Achieves IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) compliance without degrading CAN bus rise/fall times. |
Use Scenario: Stabilizing voltage reference for current-sense amplifier in three-phase motor driver feedback loop. IC Role / Device Role / Timing Role: Supplies regulated bias to op-amp input stage, rejecting supply ripple from high-switching-frequency inverter outputs. Use Value: Reduces current-sense error to <0.8 % across −40 °C to +125 °C, meeting ISO 26262 ASIL-B functional safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C30 | Same 30 V nominal, ±5 % tolerance, 350 mW rating, SOD-523 package but no AEC-Q101 qualification | Limited to industrial/commercial use; not validated for automotive thermal cycling or humidity testing | Select when cost sensitivity outweighs automotive qualification requirements |
| MMSZ5261BT1G | 30 V nominal, ±5 % tolerance, 350 mW, SOD-123 package; higher rdiff (70 Ω), larger footprint (3.5 mm × 1.6 mm) | Lower regulation accuracy and 3× larger board area; suitable only where space and precision are secondary | Choose only if legacy SOD-123 footprint compatibility is mandatory |
Compared with BZX584-C30 and MMSZ5261BT1G, SZMM5Z30VT5GF delivers tighter voltage tolerance, automotive-grade reliability, and superior thermal performance in the smallest possible footprint - making it the optimal choice for next-generation automotive electronics where precision, space, and qualification are jointly constrained.
Availability
SZMM5Z30VT5GF is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, and body control modules requiring stable component supply with guaranteed long-term continuity.
Supply support for SZMM5Z30VT5GF 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 advanced packaging technologies.
The SZMM5Z series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for precision voltage regulation and transient protection in harsh automotive environments.
FAQ
What is the maximum continuous forward current for SZMM5Z30VT5GF?
The device is rated for 200 mA maximum forward current per Absolute Maximum Ratings (Table 5). However, it is designed for reverse-bias Zener operation; forward conduction is limited to brief test pulses (≤300 µs) and should not be used in sustained forward-mode applications.
Does SZMM5Z30VT5GF require a heatsink for 300 mW operation?
No heatsink is required at 25 °C ambient: its 350 K/W junction-to-ambient thermal resistance allows full 300 mW dissipation on standard FR4 with 35 mm² copper at cathode. Derating begins above 25 °C - at 85 °C ambient, max power drops to ~180 mW.
How does the temperature coefficient affect regulation accuracy over temperature?
With a specified +24.4 to +29.4 mV/K coefficient at IZ = 2 mA, the Zener voltage increases ~1.5 V from −40 °C to +125 °C. For high-accuracy references, this drift must be compensated in system-level calibration or paired with negative-TC components.
Can SZMM5Z30VT5GF replace older Zeners like 1N4749A in automotive designs?
Yes, but with key differences: SZMM5Z30VT5GF offers ±2 % tolerance (vs. ±5 %), SOD523 footprint (vs. DO-41), and AEC-Q101 qualification (vs. commercial grade). PCB redesign and qualification testing are required due to package and reliability differences.
SZMM5Z30VT5GF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 30 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 21 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-523
SZMM5Z30VT5GF FAQ
1.How can I place an order for SZMM5Z30VT5GF through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z30VT5GF 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 SZMM5Z30VT5GF reliable?
The price and inventory of SZMM5Z30VT5GF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z30VT5GF is usually 5 days.
3.What payment methods are accepted for SZMM5Z30VT5GF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z30VT5GF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z30VT5GF?
SZMM5Z30VT5GF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z30VT5GF 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 SZMM5Z30VT5GF?
For technical support, including SZMM5Z30VT5GF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z30VT5GF requirements.
6.How does Aetrix verify that SZMM5Z30VT5GF is sourced from the original manufacturer or authorized distributors?
All SZMM5Z30VT5GF 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 SZMM5Z30VT5GF meets industry standards.
7.What is the process for return or replacement of SZMM5Z30VT5GF?
All SZMM5Z30VT5GF units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z30VT5GF, 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 SZMM5Z30VT5GF part is unused and in its original packaging.
Return procedure for SZMM5Z30VT5GF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZMM5Z30VT5GF Tags
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MM5Z5V1ST1G
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