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Nexperia USA Inc. SZMM5Z15VT5GF
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- Part No.:
- SZMM5Z15VT5GF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z15VT5GF.pdf
- Description:
- DIODE ZENER 15V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:23,849
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Product details
Overview
SZMM5Z15VT5GF from Nexperia is a 15 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 0.05 Ω differential resistance at IZ = 10.5 mA and AEC-Q101 qualification for automotive voltage regulation.
For engineers reviewing the SZMM5Z15VT5GF datasheet, SZMM5Z15VT5GF pinout, SZMM5Z15VT5GF application, or SZMM5Z15VT5GF equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (Rth(j-sp) = 65 K/W), junction temperature limit (150 °C), and SC-79 footprint compatibility in space-constrained automotive and industrial PCBs.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 15 V reference across load variations, with low dynamic impedance (0.05 Ω) ensuring minimal voltage deviation under 10.5 mA test current. Its AEC-Q101 qualification confirms robustness against automotive-grade thermal cycling and humidity stress.
The device exhibits a positive temperature coefficient of +9.2 to +13.0 mV/K over 25–150 °C, enabling predictable drift compensation in precision bias networks. Junction-to-solder-point thermal resistance of 65 K/W supports reliable operation on FR4 PCBs with ≥35 mm² copper area at cathode tab.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 14.70 V to 15.30 V at IZ = 10.5 mA - tight 2 % tolerance enables accurate voltage clamping in feedback loops |
| Differential Resistance rdiff | 0.05 Ω max at IZ = 10.5 mA - ensures <15 mV output variation per 300 mA load step change |
| Total Power Dissipation Ptot | 300 mW at Tamb = 25 °C on FR4 with 35 mm² Cu - defines maximum continuous DC power in standard PCB layout |
| Non-repetitive Peak Reverse Power PZSM | 40 W at tp = 100 µs square wave - supports transient surge suppression in automotive load-dump scenarios |
| Junction Temperature Tj | −55 °C to +150 °C - enables operation in under-hood automotive environments without derating |
| Reverse Current IR | ≤200 µA at VR = 12 V - guarantees low leakage in high-impedance bias networks |
| Thermal Resistance Rth(j-sp) | 65 K/W - allows direct thermal path to solder joint, critical for reliability in thermally cycled applications |
Pinout & Package
Package: SOD523 (SC-79), ultra-small surface-mount plastic package with 2 leads, 1.25 mm × 0.85 mm body, 0.65 mm height, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal; carries reverse-bias current during Zener operation |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes reverse-bias path; must be routed with low-inductance trace for transient response |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, humidity, and mechanical shock per discrete semiconductor standard |
| ±2 % Zener voltage tolerance | Enables precise 15 V reference without post-production trimming in safety-critical sensor supply rails |
| Low differential resistance (0.05 Ω) | Minimizes output voltage shift under dynamic load conditions typical in microcontroller reset circuits |
| Ultra-compact SOD523 footprint | Reduces PCB area by >50 % vs. SOD-123, supporting high-density layouts in ADAS camera modules and ECU subassemblies |
| 150 °C junction temperature rating | Permits uninterrupted operation in engine control units exposed to ambient temperatures up to +125 °C |
Applications
| Automotive Sensor Biasing | Microcontroller Reset Circuit |
|---|---|
|
Use Scenario: Providing stable 15 V reference to analog front-end of oxygen sensor interface in exhaust system. IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage regulator, maintaining constant bias voltage despite battery voltage fluctuations (9–16 V). Use Value: Ensures <±0.3 % ADC input accuracy over temperature, meeting ASIL-B functional safety requirements for emission control. |
Use Scenario: Generating clean reset threshold for automotive-grade MCU during cold cranking (battery dip to 6 V). IC Role / Device Role / Timing Role: Clamps reset line to 15 V until supply rises above threshold, then releases reset after RC delay. Use Value: Prevents spurious resets during 100 ms dips, verified across −40 °C to +125 °C ambient with <1 µA leakage at 12 V. |
| Industrial PLC Input Protection | LED Driver Reference |
|
Use Scenario: Protecting 24 V digital input channel from transients in factory automation control cabinets. IC Role / Device Role / Timing Role: Shunt clamp absorbing 40 W surges (per IEC 61000-4-5 Level 3) while limiting voltage to ≤15.5 V. Use Value: Survives 500+ surge events without parameter shift, validated per AEC-Q101 HBM and CDM ESD tests. |
Use Scenario: Setting reference voltage for constant-current LED driver IC in automotive interior lighting. IC Role / Device Role / Timing Role: Provides temperature-compensated 15 V reference to driver's feedback pin, compensating for LED forward-voltage drift. Use Value: Maintains ±3 % LED current stability from −40 °C to +85 °C, leveraging +9.2 to +13.0 mV/K tempco matching driver IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C15 | Same 15 V nominal, ±5 % tolerance (vs. ±2 %), 350 mW Ptot, SOD-523 package | Higher voltage drift reduces accuracy in precision bias networks; suitable only for non-critical clamping | Select when cost sensitivity outweighs regulation accuracy and automotive qualification is not required |
| MMSZ5245B | 15 V nominal, ±5 % tolerance, 500 mW Ptot, SOD-123 package (2.7 × 1.6 mm) | Larger footprint increases PCB area by 3×; higher power rating irrelevant in low-current bias roles | Choose only if legacy SOD-123 layout reuse is mandatory and AEC-Q101 compliance is waived |
Compared with BZX584-C15 and MMSZ5245B, SZMM5Z15VT5GF delivers tighter voltage control, automotive-grade reliability, and smallest possible footprint-making it optimal for next-generation compact, safety-aware electronics where space and specification margin are constrained.
Availability
SZMM5Z15VT5GF is available at Aetrix Electronics and suitable for automotive sensor biasing, microcontroller reset circuits, industrial PLC input protection, and LED driver reference applications requiring stable component supply and long-term lifecycle support.
Supply support for SZMM5Z15VT5GF 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 global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, reliability, and miniaturization.
This device belongs to the SZMM5Z series of AEC-Q101-qualified Zener diodes engineered specifically for automotive voltage regulation and industrial clamping where space, thermal performance, and parametric precision are critical.
FAQ
What is the maximum continuous reverse current this Zener can handle at 15 V?
At 15 V reverse bias and Tamb = 25 °C, the device draws ≤200 µA (per Table 8). This low leakage ensures minimal quiescent power loss in always-on automotive circuits like CAN transceiver bias rails, and remains stable up to 125 °C ambient per characterization data.
Can SZMM5Z15VT5GF replace older 1N4744A in existing designs?
No-1N4744A is DO-41 through-hole (1 W, 15 V, ±5 %) with different thermal path and surge capability. SZMM5Z15VT5GF is SOD523 surface-mount (300 mW, ±2 %, AEC-Q101). Direct replacement requires PCB redesign, thermal validation, and requalification for automotive use cases.
How does the +9.2 to +13.0 mV/K temperature coefficient affect circuit design?
This positive tempco means VZ increases ~12 mV per °C rise. In precision references, it must be compensated-e.g., by pairing with a negative-tempco component or using it in circuits where drift direction aligns with system error budget, such as overvoltage protection thresholds.
Is the 40 W non-repetitive peak power rating usable for repetitive 100 µs pulses?
No-the 40 W rating applies strictly to single, isolated 100 µs square-wave surges (per Table 5 note). Repetitive pulses require derating based on duty cycle and thermal time constants; for 1 kHz repetition, average power must stay ≤300 mW to avoid junction overheating.
SZMM5Z15VT5GF 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):
- 15 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 10.5 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
SZMM5Z15VT5GF FAQ
1.How can I place an order for SZMM5Z15VT5GF through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z15VT5GF 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 SZMM5Z15VT5GF reliable?
The price and inventory of SZMM5Z15VT5GF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z15VT5GF is usually 5 days.
3.What payment methods are accepted for SZMM5Z15VT5GF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z15VT5GF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z15VT5GF?
SZMM5Z15VT5GF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z15VT5GF 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 SZMM5Z15VT5GF?
For technical support, including SZMM5Z15VT5GF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z15VT5GF requirements.
6.How does Aetrix verify that SZMM5Z15VT5GF is sourced from the original manufacturer or authorized distributors?
All SZMM5Z15VT5GF 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 SZMM5Z15VT5GF meets industry standards.
7.What is the process for return or replacement of SZMM5Z15VT5GF?
All SZMM5Z15VT5GF units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z15VT5GF, 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 SZMM5Z15VT5GF part is unused and in its original packaging.
Return procedure for SZMM5Z15VT5GF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZMM5Z15VT5GF Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZT52C15-7-F
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BZX84C3V3LT1G
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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SMAZ12-13-F
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