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onsemi NZ8F27VSMX2WT5G
- Part No.:
- NZ8F27VSMX2WT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- 2-XDFN
- Datasheet:
-
NZ8F27VSMX2WT5G.pdf
- Description:
- DIODE ZENER 27V 250MW 2-X2DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:9,003
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Product details
Overview
NZ8F27VSMX2WT5G from onsemi is a precision Zener diode voltage regulator in the NZ8F series, designed for low-power voltage reference and overvoltage protection in space-constrained PCBs. It delivers a nominal 27 V Zener breakdown voltage (26.38 V to 27.62 V at IZT = 5 mA), with ±2% tolerance, 80 Ω dynamic impedance, and 0.1 µA leakage at 22 V reverse bias - ideal for automotive control unit power rail clamping and portable device battery monitoring circuits.
For engineers reviewing the NZ8F27VSMX2WT5G datasheet, pinout, applications, or equivalent options, key selection criteria include tight voltage tolerance (±2%), wettable flank X2DFNW2 package for AOI compatibility, AEC-Q101 qualification, and thermal performance under 250 mW dissipation on FR-4 with 1 oz. Cu.
Technical Context
This device operates as a unidirectional, silicon planar Zener diode optimized for stable reverse-bias regulation. Its electrical behavior is defined by precise VZ specification at IZT = 5 mA, low ZZT ≤ 80 Ω, and minimal temperature coefficient - critical for maintaining reference accuracy across −65 °C to +150 °C junction range.
The X2DFNW2 package enables high-density placement and automated optical inspection via wettable flanks. Thermal resistance is 415 °C/W (FR-4 minimum pad) or 247 °C/W (150 mm² copper), directly impacting maximum continuous power handling and transient surge capability up to 40 W non-repetitive peak reverse power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 26.38 V to 27.62 V at IZT = 5 mA - defines precise regulation threshold for 27 V nominal systems |
| Tolerance | ±2% - tight tolerance enables accurate voltage clamping without post-production trimming |
| Zener Impedance (ZZT) | ≤80 Ω at IZT = 5 mA - ensures minimal output voltage shift under load variation |
| Leakage Current (IR) | ≤0.1 µA at VR = 22 V - guarantees low standby power loss in always-on circuits |
| Capacitance (C) | 50 pF at VR = 0 V, f = 1 MHz - supports high-frequency noise suppression in signal path protection |
| Power Dissipation (PD) | 250 mW on FR-4 (1 oz. Cu, min pad) - sets maximum continuous DC/low-frequency clamping capability |
| Junction Temp Range | −65 °C to +150 °C - validated for under-hood automotive and industrial ambient conditions |
Pinout & Package
The NZ8F27VSMX2WT5G is housed in the X2DFNW2 surface-mount package (Case 711BG), measuring 1.00 mm × 0.60 mm × 0.37 mm with 0.65 mm pitch and wettable flank geometry for reliable solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode terminal | Connected to higher-potential node; reverse-bias voltage applied here to initiate regulation |
| 2 (Anode) | Zener anode terminal | Connected to lower-potential node (e.g., ground or return path); completes regulation current loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - suitable for engine control, body modules, and ADAS power domains |
| Wettable flank package | X2DFNW2 geometry enables 100% automated optical inspection of solder fillets - reduces field failure risk in high-volume SMT lines |
| Pb-Free / RoHS compliant | Meets EU RoHS Directive 2011/65/EU and halogen-free/BFR-free standards - supports global environmental compliance programs |
| Low profile height | 0.40 mm max body height - allows stacking under shields or integration into ultra-thin handheld and wearable PCBs |
| Non-repetitive peak power | 40 W capability (tp = 100 µs) - provides robust transient voltage suppression against ESD and load dump events |
Applications
| Automotive Power Rail Protection | Portable Device Battery Monitoring |
|---|---|
Use Scenario: Clamping 12 V/24 V system rails during load dump transients in body control modules. IC Role / Device Role / Timing Role: Unidirectional voltage clamp protecting downstream LDOs and microcontrollers from >60 V surges. Use Value: ±2% VZ tolerance ensures predictable clamping onset at 27 V, while 40 W peak rating absorbs ISO 7637-2 Pulse 5a energy without degradation. |
Use Scenario: Reference voltage generation for fuel gauge ADC in lithium-ion battery packs. IC Role / Device Role / Timing Role: Precision shunt reference providing stable 27 V reference point for voltage divider scaling. Use Value: 0.1 µA leakage at 22 V minimizes quiescent current draw, extending battery life in always-on monitoring circuits. |
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Clamp |
Use Scenario: Overvoltage protection on analog sensor outputs exposed to ESD in factory automation nodes. IC Role / Device Role / Timing Role: Fast-response shunt protector limiting signal line excursions to safe levels before op-amp inputs. Use Value: 50 pF capacitance avoids signal integrity degradation at 1 MHz bandwidth, preserving sensor data fidelity. |
Use Scenario: Secondary-side overvoltage clamp on USB-C PD sink CC lines during fault conditions. IC Role / Device Role / Timing Role: Fail-safe voltage limiter preventing damage to CC logic circuitry during VBUS coupling faults. Use Value: Low 0.40 mm height enables placement adjacent to USB-C connectors without mechanical interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C27LT1G | 27 V ±5% tolerance, SOT-23 package (1.3 mm × 0.9 mm), 350 mW PD, no AEC-Q101 qualification | Larger footprint, higher power, but lacks automotive qualification and wettable flanks | Select when board space permits larger package and AEC-Q101 is not required |
| MMSZ5260ET1G | 27 V ±5% tolerance, SOD-123 package (2.7 mm × 1.4 mm), 500 mW PD, no wettable flanks | Higher power rating but incompatible with AOI due to non-wettable flank geometry | Choose for cost-sensitive industrial designs where AOI is not mandated and layout density is less constrained |
Compared with NZ8F27VSMX2WT5G, BZX84-C27LT1G offers higher power but looser tolerance and no automotive qualification, while MMSZ5260ET1G trades compactness and AOI support for greater dissipation - making NZ8F27VSMX2WT5G optimal for AEC-Q101-compliant, high-density, optically inspectable designs.
Availability
NZ8F27VSMX2WT5G is available at Aetrix Electronics and suitable for automotive control units, portable battery management systems, and industrial sensor interfaces requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for NZ8F27VSMX2WT5G 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
onsemi (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NZ8F Series is part of onsemi's precision discrete portfolio, engineered specifically for high-reliability voltage regulation in miniaturized, thermally demanding environments - with emphasis on automotive-grade robustness and manufacturability.
FAQ
What is the Zener voltage tolerance of NZ8F27VSMX2WT5G?
The NZ8F27VSMX2WT5G has a tight ±2% Zener voltage tolerance, specified as 26.38 V to 27.62 V at test current IZT = 5 mA. This tighter tolerance compared to standard-series Zeners (e.g., ±5%) enables more accurate voltage clamping and reference generation without external calibration - a key advantage in automotive and precision analog applications where NZ8F27VSMX2WT5G is deployed.
Is NZ8F27VSMX2WT5G qualified for automotive use?
Yes, NZ8F27VSMX2WT5G is AEC-Q101 qualified and PPAP capable, meeting the stress test requirements for discrete semiconductors in automotive electronics. The "S" in the part number denotes the tight-tolerance series, and the device is manufactured under automotive-specific process controls - making NZ8F27VSMX2WT5G suitable for engine control units, body electronics, and ADAS subsystems.
What package type does NZ8F27VSMX2WT5G use, and why does it matter?
NZ8F27VSMX2WT5G uses the X2DFNW2 package (Case 711BG), a 0402-inch wettable flank leadless design measuring 1.00 mm × 0.60 mm × 0.37 mm. Its wettable flanks enable reliable automated optical inspection (AOI) of solder joints - critical for zero-defect manufacturing in high-volume automotive and consumer electronics. This distinguishes NZ8F27VSMX2WT5G from conventional 0402 diodes lacking AOI compatibility.
What is the maximum power dissipation for NZ8F27VSMX2WT5G on a standard PCB?
NZ8F27VSMX2WT5G has a maximum total device dissipation of 250 mW on FR-4 board with minimum pad layout and 1 oz. copper, derating linearly at 1.5 mW/°C above 25 °C ambient. With enhanced thermal pads (150 mm², 1 oz. Cu), it supports up to 500 mW - but NZ8F27VSMX2WT5G's typical use case leverages its precision regulation rather than sustained high-power operation.
How does the leakage current of NZ8F27VSMX2WT5G compare to other 27 V Zeners?
NZ8F27VSMX2WT5G specifies ≤0.1 µA reverse leakage current at VR = 22 V, significantly lower than many competing 27 V Zeners (e.g., BZX84-C27LT1G: ~1 µA at 22 V). This ultra-low leakage preserves battery life in always-on portable and telematics applications - a verified performance attribute confirmed in the onsemi datasheet's Electrical Characteristics table for NZ8F27VSMX2WT5G.
NZ8F27VSMX2WT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NZ8F
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 27 V
- Tolerance:
- ±2.3%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 22 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 2-X2DFNW (1x0.6)
NZ8F27VSMX2WT5G FAQ
1.How can I place an order for NZ8F27VSMX2WT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ8F27VSMX2WT5G 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 NZ8F27VSMX2WT5G reliable?
The price and inventory of NZ8F27VSMX2WT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ8F27VSMX2WT5G is usually 5 days.
3.What payment methods are accepted for NZ8F27VSMX2WT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ8F27VSMX2WT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ8F27VSMX2WT5G?
NZ8F27VSMX2WT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ8F27VSMX2WT5G 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 NZ8F27VSMX2WT5G?
For technical support, including NZ8F27VSMX2WT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ8F27VSMX2WT5G requirements.
6.How does Aetrix verify that NZ8F27VSMX2WT5G is sourced from the original manufacturer or authorized distributors?
All NZ8F27VSMX2WT5G 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 NZ8F27VSMX2WT5G meets industry standards.
7.What is the process for return or replacement of NZ8F27VSMX2WT5G?
All NZ8F27VSMX2WT5G units undergo pre-shipment inspection (PSI). If there is an issue with NZ8F27VSMX2WT5G, 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 NZ8F27VSMX2WT5G part is unused and in its original packaging.
Return procedure for NZ8F27VSMX2WT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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