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Nexperia USA Inc. SZMM5Z27VT5GF
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- Part No.:
- SZMM5Z27VT5GF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z27VT5GF.pdf
- Description:
- DIODE ZENER 27V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:80
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Product details
Overview
SZMM5Z27VT5GF from Nexperia is a 27 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 = 2 mA and AEC-Q101 qualification for automotive voltage regulation.
For engineers reviewing the SZMM5Z27VT5GF datasheet, SZMM5Z27VT5GF pinout, SZMM5Z27VT5GF application, or SZMM5Z27VT5GF equivalent, this device supports precision low-power voltage reference, overvoltage clamping, and bias stabilization in space-constrained automotive and industrial PCBs where thermal resistance to ambient (350 K/W) and junction temperature limits (150 °C) are critical design constraints.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal working voltage of 27 V (26.46 V min / 27.54 V max at IZ = 2 mA), exhibiting low temperature coefficient (21.4 to 25.3 mV/K) and 50 Ω differential resistance - enabling stable regulation under varying load and temperature conditions.
Its SOD523 package delivers ultra-small footprint (1.25 mm × 0.85 mm) and low thermal resistance to solder point (65 K/W), supporting high-density layouts while maintaining reliable power handling up to 300 mW continuous and 40 W transient surge per IEC 60134 absolute maximum ratings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 27 V nominal (26.46–27.54 V range at IZ = 2 mA); defines precise clamping/reference level in feedback or protection circuits |
| Tolerance | ±2 %; ensures tight voltage accuracy without post-production trimming in production-grade automotive systems |
| Differential Resistance rdiff | 50 Ω max at IZ = 2 mA; determines regulation stiffness and output impedance in shunt regulator configurations |
| Total Power Dissipation Ptot | 300 mW at Tamb = 25 °C on FR4 PCB with 35 mm² copper; sets continuous thermal budget for board-level layout |
| Non-repetitive Peak Power PZSM | 40 W (tp = 100 µs, square wave); enables robust transient overvoltage suppression in CAN/LIN bus nodes or sensor interfaces |
| Junction Temperature Tj | 150 °C max; supports operation in under-hood automotive environments without derating below −40 °C to +125 °C ambient |
| AEC-Q101 Qualified | Validated for automotive discrete semiconductor stress testing; eliminates need for customer requalification in Tier-1 modules |
Pinout & Package
The SZMM5Z27VT5GF uses a 2-pin SOD523 (SC-79) plastic surface-mount package with cathode-indicating marking bar. Thermal performance relies on cathode tab soldering to ≥35 mm² copper area on FR4 PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal; primary heat path to PCB copper |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes reverse-bias path during Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SOD523 footprint | 1.25 mm × 0.85 mm outline enables placement in <1.5 mm² board area - critical for compact ADAS sensors and ECUs |
| Low differential resistance | 50 Ω max ensures <±0.1 V output shift across 1 mA load variation - improves reference stability in analog front-ends |
| AEC-Q101 qualification | Validated for automotive temperature cycling, HTRB, and ESD per JESD22 standards - reduces qualification overhead for OEM designs |
| Controlled temperature coefficient | 21.4–25.3 mV/K range minimizes drift over −40 °C to +125 °C ambient - maintains accuracy in engine control modules |
| High surge capability | 40 W non-repetitive peak power withstands ISO 7637-2 pulse 1/2/5a transients without degradation - suitable for 12 V vehicle networks |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Stabilizing 27 V reference for LIN transceiver bias and microcontroller reset monitoring in door module PCBs. IC Role / Device Role / Timing Role: Shunt Zener regulator providing low-drift voltage reference for analog comparators and supervisor ICs. Use Value: ±2 % tolerance and 50 Ω rdiff ensure reset threshold remains within 26.5–27.5 V across temperature, preventing spurious resets. |
Use Scenario: Clamping amplifier supply rails against ESD and switching transients in factory-floor pressure transmitters. IC Role / Device Role / Timing Role: Transient voltage suppressor protecting op-amp inputs and ADC references from >30 V surges. Use Value: 40 W peak power rating absorbs 100 µs transients without failure, maintaining signal integrity during motor startup events. |
| Automotive Lighting Driver | Consumer Power Adapter Feedback |
|
Use Scenario: Providing stable 27 V reference for current-sense amplifier gain setting in LED headlamp driver ICs. IC Role / Device Role / Timing Role: Precision voltage reference establishing fixed gain ratio in high-side current sensing paths. Use Value: 21.4–25.3 mV/K tempco ensures <±0.3 V reference shift over −40 °C to +105 °C, preserving LED current accuracy. |
Use Scenario: Regulating auxiliary 27 V rail in multi-output AC/DC adapters powering smart home hubs. IC Role / Device Role / Timing Role: Low-power shunt regulator maintaining isolated bias voltage for optocoupler feedback circuitry. Use Value: 300 mW continuous dissipation supports 2 mA reference current with margin, enabling stable loop compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C27 | Same 27 V, ±5 % tolerance; 500 mW Ptot; SOD-323 package (larger: 1.7 × 1.3 mm) | Higher power but larger footprint; less suitable for ultra-dense automotive modules | Select when higher continuous power (500 mW) is required and board area allows SOD-323 |
| MMSZ5256ET1G | 27 V, ±5 %; 500 mW; SOD-123 package (2.7 × 1.6 mm); no AEC-Q101 qualification | Larger size and unqualified for automotive use; requires full requalification for vehicle programs | Choose only for cost-sensitive industrial applications where AEC-Q101 is not mandated |
Compared with BZX584-C27 and MMSZ5256ET1G, SZMM5Z27VT5GF offers tighter ±2 % tolerance, AEC-Q101 compliance, and smallest SOD523 footprint - making it optimal for space- and reliability-critical automotive voltage references where 300 mW suffices.
Availability
SZMM5Z27VT5GF is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, LED lighting drivers, and consumer power adapter feedback circuits requiring stable component supply with guaranteed long-term continuity.
Supply support for SZMM5Z27VT5GF 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 logic, discrete, and MOSFET solutions, with core expertise in automotive-qualified components and efficient manufacturing.
The SZMM5Z series targets automotive and industrial Zener regulation needs, delivering AEC-Q101-qualified, ultra-miniature voltage references optimized for thermal performance and board-space efficiency in harsh environments.
FAQ
What is the maximum continuous reverse current this Zener can handle at 27 V?
At 27 V reverse bias and Tamb = 25 °C on FR4 with 35 mm² copper, the device sustains ≤11.1 mA continuous current (300 mW ÷ 27 V), limited by its 300 mW total power dissipation rating and thermal resistance to ambient (350 K/W).
How does the SOD523 package affect thermal performance compared to SOD-123?
The SOD523's smaller size increases thermal resistance to ambient (350 K/W vs. ~200 K/W for SOD-123), but its dedicated cathode tab and 65 K/W junction-to-solder-point resistance enable efficient heat transfer when mounted on ≥35 mm² copper - critical for automotive reliability.
Is this Zener suitable for use in a 48 V automotive system?
No - SZMM5Z27VT5GF is rated for 27 V nominal operation and 40 W transient surge, not 48 V system-level transients. For 48 V architectures, Nexperia's PTVSxP1UP series or higher-voltage Zeners like SZMM5Z47VT5GF are appropriate alternatives.
Does the ±2 % tolerance apply across temperature or only at 25 °C?
The ±2 % tolerance is specified at Tj = 25 °C and IZ = 2 mA. Over temperature (−40 °C to +125 °C), additional drift occurs per the 21.4–25.3 mV/K temperature coefficient - resulting in total deviation of approximately ±3.5 % across full automotive range.
SZMM5Z27VT5GF 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):
- 27 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 18.9 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
SZMM5Z27VT5GF FAQ
1.How can I place an order for SZMM5Z27VT5GF through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z27VT5GF 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 SZMM5Z27VT5GF reliable?
The price and inventory of SZMM5Z27VT5GF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z27VT5GF is usually 5 days.
3.What payment methods are accepted for SZMM5Z27VT5GF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z27VT5GF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z27VT5GF?
SZMM5Z27VT5GF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z27VT5GF 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 SZMM5Z27VT5GF?
For technical support, including SZMM5Z27VT5GF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z27VT5GF requirements.
6.How does Aetrix verify that SZMM5Z27VT5GF is sourced from the original manufacturer or authorized distributors?
All SZMM5Z27VT5GF 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 SZMM5Z27VT5GF meets industry standards.
7.What is the process for return or replacement of SZMM5Z27VT5GF?
All SZMM5Z27VT5GF units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z27VT5GF, 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 SZMM5Z27VT5GF part is unused and in its original packaging.
Return procedure for SZMM5Z27VT5GF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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