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Nexperia USA Inc. SZMM5Z36VT5GF
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- Part No.:
- SZMM5Z36VT5GF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z36VT5GF.pdf
- Description:
- DIODE ZENER 36V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:3,885
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Product details
Overview
SZMM5Z36VT5GF from Nexperia is a 36 V ±2 % tolerance Zener diode in SOD523 (SC-79) package, designed for precision voltage regulation and overvoltage protection in space-constrained automotive and industrial circuits. It delivers 36.72 V maximum Zener voltage at IZ = 2 mA, 25.2 Ω typical differential resistance, and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the SZMM5Z36VT5GF datasheet, SZMM5Z36VT5GF pinout, SZMM5Z36VT5GF application, or SZMM5Z36VT5GF equivalent, this device supports stable reference generation in low-power sensor interfaces, ECU power rail clamping, and reverse-polarity protection circuits where ultra-small footprint and automotive-grade reliability are mandatory.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal working voltage of 36 V, specified at IZ = 2 mA and Tj = 25 °C. Its temperature coefficient is +30.4 to +37.4 mV/K, enabling predictable drift behavior across −55 °C to +150 °C ambient range.
The device features low dynamic impedance (25.2 Ω max), 350 K/W junction-to-ambient thermal resistance on FR4 PCB, and non-repetitive peak reverse power dissipation of 40 W (tp = 100 µs). It is rated for 300 mW total DC power dissipation and qualified per AEC-Q101 for automotive discrete semiconductor stress testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 35.28 V min to 36.72 V max at IZ = 2 mA - defines precise clamping threshold for 36 V rail protection |
| Differential Resistance (rdiff) | 25.2 Ω max at IZ = 2 mA - ensures minimal output voltage shift under load variation |
| Tolerance | ±2 % - enables tight regulation without post-production trimming in production systems |
| Forward Voltage (VF) | 1.1 V max at IF = 100 mA - supports use as polarity protection diode in series configuration |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 µs - handles transient surges such as ISO 7637-2 pulse 1/2a in automotive ECUs |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C on FR4 with 35 mm² copper - sets continuous operating limit for PCB layout thermal design |
| Junction Temperature (Tj) | 150 °C max - allows operation in high-temperature engine bay environments |
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 height. Cathode identified by marking bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; carries reverse current during Zener conduction; marked with bar on top surface |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes bias path for reverse-biased operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock tests |
| ±2 % Zener voltage tolerance | Reduces need for external trimming components in reference circuits, improving BOM simplicity and yield |
| 25.2 Ω max differential resistance | Maintains regulation accuracy within ±0.5 V across 0.5–5 mA load current changes in feedback loops |
| 350 K/W Rth(j-a) | Enables thermal management on standard FR4 without heatsinking for ≤150 mW continuous dissipation |
| 40 W surge capability | Withstands ISO 7637-2 Pulse 1 (−150 V, 50 Ω, 2 Ω series) without degradation when used with appropriate series impedance |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Clamping 36 V battery-supplied microcontroller I/O lines against load dump transients. IC Role / Device Role / Timing Role: Zener clamp diode placed between I/O pin and ground to shunt excess energy during ISO 7637-2 Pulse 5a events. Use Value: Limits voltage to ≤36.72 V with 25.2 Ω dynamic impedance, preventing latch-up in 3.3 V or 5 V logic inputs downstream. |
Use Scenario: Providing stable 36 V reference for 16-bit ADC excitation in pressure transducer front-ends. IC Role / Device Role / Timing Role: Precision Zener reference source feeding a resistive divider network into an instrumentation amplifier input stage. Use Value: ±2 % tolerance and +30.4 to +37.4 mV/K TC enable <1 LSB error contribution over −40 °C to +85 °C operating range. |
| Smart Actuator Power Stage Protection | Low-Power IoT Node Voltage Supervision |
|
Use Scenario: Reverse-polarity and overvoltage protection for 36 V BLDC motor gate driver supply rails. IC Role / Device Role / Timing Role: Cathode tied to 36 V rail, anode grounded; conducts during negative transients or >36.72 V surges. Use Value: 40 W non-repetitive surge rating absorbs 100 µs spikes without failure, complementing TVS diodes in multi-stage protection schemes. |
Use Scenario: Brown-out detection and reset generation for ARM Cortex-M0+ MCUs powered from 36 V DC-DC converters. IC Role / Device Role / Timing Role: Zener-based comparator reference in supervisor IC input stage, triggering reset below 35.28 V. Use Value: Tight 35.28–36.72 V window ensures reliable reset assertion before MCU functional failure, with no external calibration needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C36 | Same 36 V nominal, ±5 % tolerance, SOD-323 package, 500 mW Ptot | Higher power rating but looser tolerance; larger footprint (1.7 × 1.3 mm vs. 1.25 × 0.85 mm) | Select when higher continuous power margin is required and board space permits larger package |
| MMSZ5267ET1G | 36 V nominal, ±5 % tolerance, SOD-123 package, 500 mW Ptot, no AEC-Q101 | Not automotive-qualified; higher thermal resistance (400 K/W); lacks surge rating documentation | Acceptable for commercial-grade industrial sensors but not for automotive ECU designs requiring AEC-Q101 compliance |
Compared with BZX584-C36 and MMSZ5267ET1G, SZMM5Z36VT5GF offers tighter ±2 % tolerance, smaller SOD523 footprint, and verified AEC-Q101 qualification-making it the only choice for space-constrained, safety-critical automotive voltage reference and clamping functions.
Availability
SZMM5Z36VT5GF is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, smart actuator protection, and low-power IoT node supervision requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SZMM5Z36VT5GF 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and automotive-grade robustness.
SZMM5Z series targets compact, high-reliability Zener regulation in automotive and industrial applications-designed specifically for AEC-Q101 compliance, ultra-small SOD523 packaging, and stable performance across extended temperature ranges.
FAQ
What is the maximum continuous reverse current this Zener can sustain at 36 V?
At 36 V reverse bias and Tamb = 25 °C on FR4 with 35 mm² copper, the device sustains up to 8.33 mA continuously (300 mW ÷ 36 V), limited by its 300 mW total power dissipation rating-not by Zener knee current. Derating is required above 25 °C per the 350 K/W thermal resistance.
Does the ±2 % tolerance apply across temperature or only at 25 °C?
The ±2 % tolerance applies to the nominal 36 V Zener voltage measured at IZ = 2 mA and Tj = 25 °C. Total voltage variation over −55 °C to +150 °C includes both initial tolerance and temperature coefficient (30.4–37.4 mV/K), resulting in a worst-case span of approximately ±5.5 % across full junction temperature range.
Can this diode be used in forward conduction mode for polarity protection?
Yes: with VF ≤ 1.1 V at 100 mA forward current, it functions as a low-drop series protection diode. However, its 200 mA absolute maximum forward current and 1.1 V drop make it suitable only for low-current (<50 mA) reverse-polarity blocking-unlike dedicated Schottky or MOSFET-based solutions for high-current paths.
How does the 40 W surge rating translate to real-world transient immunity?
The 40 W rating is defined for 100 µs square-wave pulses at Tj = 25 °C prior to surge. In practice, it withstands ISO 7637-2 Pulse 1 (−150 V, 50 Ω source) when paired with ≥10 Ω series impedance, limiting peak current to ~15 A and energy to ~110 mJ-well within safe operating area per Nexperia's application guidance.
SZMM5Z36VT5GF 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):
- 36 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 25.2 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
SZMM5Z36VT5GF FAQ
1.How can I place an order for SZMM5Z36VT5GF through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z36VT5GF 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 SZMM5Z36VT5GF reliable?
The price and inventory of SZMM5Z36VT5GF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z36VT5GF is usually 5 days.
3.What payment methods are accepted for SZMM5Z36VT5GF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z36VT5GF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z36VT5GF?
SZMM5Z36VT5GF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z36VT5GF 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 SZMM5Z36VT5GF?
For technical support, including SZMM5Z36VT5GF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z36VT5GF requirements.
6.How does Aetrix verify that SZMM5Z36VT5GF is sourced from the original manufacturer or authorized distributors?
All SZMM5Z36VT5GF 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 SZMM5Z36VT5GF meets industry standards.
7.What is the process for return or replacement of SZMM5Z36VT5GF?
All SZMM5Z36VT5GF units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z36VT5GF, 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 SZMM5Z36VT5GF part is unused and in its original packaging.
Return procedure for SZMM5Z36VT5GF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZMM5Z36VT5GF Tags
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