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Nexperia USA Inc. SZMM5Z2V4T5GF
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- Part No.:
- SZMM5Z2V4T5GF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z2V4T5GF.pdf
- Description:
- DIODE ZENER 2.4V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:9,905
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Product details
Overview
SZMM5Z2V4T5GF from Nexperia is a 2.4 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 50 Ω typical differential resistance at IZ = 5 mA and AEC-Q101 qualification for automotive voltage regulation.
For engineers reviewing the SZMM5Z2V4T5GF datasheet, SZMM5Z2V4T5GF pinout, SZMM5Z2V4T5GF application, or SZMM5Z2V4T5GF equivalent, this device serves as a precision low-voltage reference and overvoltage clamp in space-constrained automotive and industrial power rails where thermal performance and surge robustness are critical.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 2.4 V regulation across load and line variations, with a temperature coefficient of −3.5 to 0 mV/K ensuring minimal drift from 25 °C to 150 °C junction temperature. Its low 50 Ω differential resistance supports tight regulation under dynamic current changes up to 5 mA.
The device features ultra-small SOD523 packaging with cathode-marked anode-cathode polarity, optimized for reflow soldering on FR4 PCBs with ≥35 mm² copper area at the cathode tab, delivering Rth(j-a) = 350 K/W and Rth(j-sp) = 65 K/W for reliable thermal management in high-density layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage VZ | 2.35 V to 2.45 V at IZ = 5 mA - defines precise regulation threshold for low-voltage biasing and reference circuits |
| Differential resistance rdiff | 50 Ω max at IZ = 5 mA - ensures minimal output voltage variation under load current shifts |
| Total power dissipation Ptot | 300 mW at Tamb = 25 °C - sets continuous operating limit on standard FR4 PCB with 35 mm² Cu |
| Non-repetitive peak reverse power PZSM | 40 W for tp = 100 µs square wave - enables transient overvoltage clamping without failure |
| Forward voltage VF | 1.1 V max at IF = 100 mA - confirms low-loss forward conduction during reverse-biased operation |
| Reverse current IR | 400 µA max at VR = 1 V - quantifies leakage before breakdown, critical for standby power integrity |
| Temperature coefficient SZ | −3.5 to 0 mV/K - guarantees predictable VZ drift over full operating junction range (25–150 °C) |
Pinout & Package
Package: SOD523 (SC-79), ultra-small surface-mount plastic package with flat leads and cathode marking bar; dimensions: 1.25 mm × 0.85 mm × 0.65 mm (L × W × H), 2-terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marked by visible band on package; carries reverse breakdown current |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes Zener conduction path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and surge stress per discrete semiconductor standard |
| ±2 % VZ tolerance | Enables accurate voltage setting without post-production trimming in cost-sensitive consumer and industrial designs |
| Low 50 Ω rdiff | Reduces regulation error to <±25 mV under ±1 mA load change, supporting stable feedback in LDO pre-regulators |
| 40 W surge capability | Clamps ESD and load-dump transients in automotive ECUs without external TVS, reducing BOM count |
| SOD523 footprint | Occupies only 1.06 mm² PCB area - ideal for wearables, sensor nodes, and multi-rail PMIC monitoring circuits |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating 2.4 V reference for microcontroller ADC and CAN transceiver bias in BCM power domain. IC Role / Device Role / Timing Role: Precision voltage reference and overvoltage clamp protecting downstream analog circuitry. Use Value: Maintains ADC accuracy within ±0.5 LSB over temperature while absorbing 12 V load-dump spikes via 40 W surge rating. |
Use Scenario: Providing stable 2.4 V bias to bridge-based pressure/temperature sensors in factory automation nodes. IC Role / Device Role / Timing Role: Low-drift Zener reference source enabling ratiometric measurement stability. Use Value: −3.5 to 0 mV/K temperature coefficient limits reference drift to <±1.2 mV from −40 °C to +125 °C ambient. |
| USB-C Power Delivery Monitor | Medical Wearable Battery Management |
Use Scenario: Clamping VBUS sense line against 20 V transients during hot-plug events in USB PD sink ICs. IC Role / Device Role / Timing Role: Fast-response overvoltage protector on analog monitor inputs. Use Value: 100 µs surge response time and 400 µA leakage at 1 V ensure no false triggering during normal 5 V operation. |
Use Scenario: Generating 2.4 V reference for lithium-ion cell voltage monitoring in compact hearables. IC Role / Device Role / Timing Role: Miniaturized voltage reference with minimal self-heating in sealed enclosure. Use Value: 300 mW power rating and 350 K/W junction-to-ambient thermal resistance prevent >5 °C rise at 100 µA quiescent current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C2V4 | Same 2.4 V ±2 %, but SOD323 package (1.7 × 1.3 mm); 500 mW Ptot; higher rdiff (100 Ω) | Larger footprint; better power handling but poorer regulation accuracy under load shift | Select when board space allows larger package and higher continuous power is needed over precision |
| MMSZ5221B | 2.4 V ±5 %; SOD123 package; 500 mW Ptot; rdiff = 100 Ω; no AEC-Q101 qualification | Lower cost, non-automotive grade; wider VZ spread reduces reference accuracy in precision systems | Choose for cost-driven consumer applications where ±5 % tolerance and non-automotive reliability are acceptable |
Compared with BZX584C2V4 and MMSZ5221B, SZMM5Z2V4T5GF delivers superior regulation accuracy (±2 %, 50 Ω rdiff) and automotive qualification in the smallest footprint (SOD523), making it optimal for space- and reliability-critical embedded systems.
Availability
SZMM5Z2V4T5GF is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, USB-C power monitors, and medical wearable battery management systems requiring stable component supply with guaranteed long-term continuity.
Supply support for SZMM5Z2V4T5GF 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-performance, energy-efficient components for automotive, industrial, and consumer markets, with leadership in logic, discretes, and MOSFETs.
SZMM5Z series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for precision voltage regulation and transient protection in harsh-environment automotive and industrial power management circuits.
FAQ
What is the maximum continuous reverse current this Zener can handle at 25 °C?
The device supports up to 200 mA forward current per limiting values, but for Zener operation, the maximum continuous reverse current is derived from its 300 mW power rating and 2.4 V nominal voltage - yielding ~125 mA at full regulation. Operation above this requires derating per thermal resistance data and PCB copper area.
How does the cathode marking align with the SOD523 package outline?
The cathode is marked by a visible bar on the top surface of the SOD523 package, positioned adjacent to Pin 1; the physical layout matches Nexperia's official outline drawing (sod523_po), where Pin 1 (cathode) is on the left when the marking bar faces upward and the device is viewed from above with leads pointing downward.
Is this Zener suitable for use in a 1.8 V logic rail clamp?
No - SZMM5Z2V4T5GF has a nominal Zener voltage of 2.4 V and begins regulating significantly only above ~2.2 V. For 1.8 V rail clamping, a lower-voltage Zener such as SZMM5Z1V8T5G (1.8 V ±2 %) is required; using this part would leave the rail unprotected below 2.2 V.
Does the 40 W surge rating apply to repetitive pulses?
No - the 40 W non-repetitive peak reverse power dissipation is defined for single 100 µs square-wave pulses at Tj = 25 °C prior to surge. Repetitive surges must comply with average power limits (≤300 mW) and thermal time constants; exceeding single-pulse ratings risks permanent junction damage.
SZMM5Z2V4T5GF 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):
- 2.4 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 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-523
SZMM5Z2V4T5GF FAQ
1.How can I place an order for SZMM5Z2V4T5GF through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z2V4T5GF 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 SZMM5Z2V4T5GF reliable?
The price and inventory of SZMM5Z2V4T5GF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z2V4T5GF is usually 5 days.
3.What payment methods are accepted for SZMM5Z2V4T5GF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z2V4T5GF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z2V4T5GF?
SZMM5Z2V4T5GF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z2V4T5GF 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 SZMM5Z2V4T5GF?
For technical support, including SZMM5Z2V4T5GF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z2V4T5GF requirements.
6.How does Aetrix verify that SZMM5Z2V4T5GF is sourced from the original manufacturer or authorized distributors?
All SZMM5Z2V4T5GF 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 SZMM5Z2V4T5GF meets industry standards.
7.What is the process for return or replacement of SZMM5Z2V4T5GF?
All SZMM5Z2V4T5GF units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z2V4T5GF, 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 SZMM5Z2V4T5GF part is unused and in its original packaging.
Return procedure for SZMM5Z2V4T5GF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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