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onsemi MM3Z27VT1
- Part No.:
- MM3Z27VT1
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
MM3Z27VT1.pdf
- Description:
- DIODE ZENER 27V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:6,058
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Product details
Overview
MM3Z27VT1 from onsemi is a 27 V, 200 mW surface-mount Zener diode in SOD−323 package, designed for precision voltage regulation and overvoltage protection in space-constrained circuits. It delivers nominal Zener voltage of 27 V at 2 mA test current, with dynamic impedance of 80 Ω at IZT and leakage current ≤0.05 µA at 18.9 V reverse bias - used in portable power rails and reference stabilization.
For engineers reviewing the MM3Z27VT1 datasheet, pinout, applications, or equivalent options, key selection criteria include its 27 V nominal Zener voltage, 200 mW power rating, SOD−323 footprint compatibility, low leakage (<0.05 µA), and ±1.9 V voltage tolerance (25.1–28.9 V) under specified test conditions.
Technical Context
The MM3Z27VT1 operates as a two-terminal voltage reference device relying on controlled reverse breakdown. Its Zener mechanism provides stable regulation across ambient temperatures from −65°C to +150°C, with thermal resistance of 635°C/W and derating slope of 1.5 mW/°C above 25°C.
It exhibits a positive temperature coefficient of +21.4 mV/°C, enabling predictable drift compensation in bias networks. Capacitance is 70 pF at 0 V bias and 1 MHz, supporting high-frequency decoupling roles without resonance issues in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27 V nominal at 2 mA; min/max 25.1–28.9 V - defines regulated output voltage under standard test conditions |
| Power Dissipation | 200 mW at 25°C; derates linearly to zero at ~162°C - sets maximum continuous power handling on FR-5 board |
| Zener Impedance (ZZT) | 80 Ω max at 2 mA - determines AC regulation stability and ripple rejection capability |
| Reverse Leakage (IR) | ≤0.05 µA at 18.9 V - ensures minimal standby current in high-impedance bias networks |
| Capacitance (C) | 70 pF at 0 V, 1 MHz - impacts high-frequency noise filtering and signal integrity in RF-adjacent circuits |
| Temp Coefficient (αVZ) | +21.4 mV/°C - enables predictable voltage drift modeling for temperature-compensated references |
| ESD Rating | Class 3 (>16 kV HBM) - supports robust handling in automated assembly and end-user environments |
Pinout & Package
SOD−323 surface-mount package: 1.7 mm × 1.25 mm body, 0.9 mm height, cathode marked by band. Compatible with standard reflow profiles (260°C/10 s max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage node; reverse-biased during Zener operation |
| 2 (Unmarked End) | Anode | Connected to circuit ground or lower-potential rail; completes conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Pb-Free SOD−323 Package | RoHS-compliant construction with Sn-only or Pb−Sn plating; meets IPC/JEDEC J-STD-020 moisture sensitivity level 1 |
| Low Profile & Small Footprint | 0.9 mm height and 1.7 mm × 1.25 mm outline - enables placement in dense mobile PCBs and wearable electronics |
| High ESD Robustness | Class 3 HBM (>16 kV) - eliminates need for external ESD protection in handheld interface circuits |
| Stable Low-Leakage Regulation | ≤0.05 µA leakage at 70% of VZ - preserves battery life in always-on sensor nodes and backup power monitors |
| Controlled Temperature Drift | +21.4 mV/°C coefficient - allows accurate thermal error budgeting in automotive cabin modules and industrial sensors |
Applications
| Portable Power Rail Protection | Reference Voltage Source |
|---|---|
Use Scenario: Protecting 3.3 V or 5 V logic rails in smartphones and Bluetooth earbuds from transient overvoltage events. IC Role / Device Role / Timing Role: Shunt regulator clamping excess energy to ground during ESD or load-dump events. Use Value: Prevents latch-up or damage to PMICs and baseband processors using only 0.9 mm vertical clearance. | Use Scenario: Providing stable 27 V reference for ADC biasing or DAC output scaling in portable test equipment. IC Role / Device Role / Timing Role: Precision voltage reference element in feedback loops of programmable power supplies. Use Value: Enables <±1% full-scale accuracy over −20°C to +70°C due to tight 25.1–28.9 V tolerance and known tempco. |
| High-Density PC Board Clamping | Automotive Cabin Sensor Biasing |
Use Scenario: Overvoltage suppression on USB-C PD negotiation lines and MIPI D-PHY lanes in thin laptops. IC Role / Device Role / Timing Role: Transient voltage suppressor placed adjacent to connector pins. Use Value: Fits within 1.25 mm pitch constraints while delivering 200 mW clamping energy absorption. | Use Scenario: Biasing NTC thermistors and Hall-effect sensors in HVAC control modules and seat position detectors. IC Role / Device Role / Timing Role: Stable excitation source for ratiometric analog front-ends. Use Value: Maintains sensor linearity over −40°C to +125°C operating range with predictable +21.4 mV/°C drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B27,115 | Same 27 V nominal, 200 mW rating, but SOD-323 package with 100 Ω ZZT (vs. 80 Ω); tighter ±2% tolerance (26.46–27.54 V) | Higher precision needed in metrology-grade references; slightly higher dynamic impedance affects ripple rejection | Select BZX384-B27,115 when tighter voltage tolerance and NXP qualification are required for medical-grade instrumentation |
| MMBZ5256BS-7-F | 27 V nominal, 225 mW rating, SOT-323 package (same footprint); ZZT = 70 Ω at 20 mA (not 2 mA), leakage 1 µA at 21.6 V | Higher test current shifts operating point; higher leakage reduces suitability for ultra-low-power sleep modes | Select MMBZ5256BS-7-F when higher power margin is needed and system can tolerate 1 µA standby leakage |
Compared with BZX384-B27,115 and MMBZ5256BS-7-F, the MM3Z27VT1 offers optimal balance of low leakage (0.05 µA), moderate ZZT (80 Ω), and industry-standard onsemi qualification - making it preferred for consumer portables where cost, size, and standby current are co-optimized.
Availability
MM3Z27VT1 is available at Aetrix Electronics and suitable for portable power rail protection, reference voltage sourcing, and high-density PC board clamping requiring stable component supply across production volumes and design-in cycles.
Supply support for MM3Z27VT1 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 (Nasdaq: ON) is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and edge applications.
The MM3Z27VT1 belongs to the MM3Z2V4T1 series of 200 mW Zener regulators designed specifically for space-constrained, low-power voltage reference and overvoltage protection in portable and high-density electronics.
FAQ
What is the Zener voltage tolerance of MM3Z27VT1 at 25°C?
The MM3Z27VT1 has a nominal Zener voltage of 27 V with a minimum of 25.1 V and maximum of 28.9 V at 2 mA test current and 25°C ambient temperature. This ±1.9 V tolerance reflects the device's guaranteed regulation window under standard test conditions, and is critical for determining worst-case headroom in voltage-clamp designs using the MM3Z27VT1.
Does MM3Z27VT1 support Pb-free soldering processes?
Yes, the MM3Z27VT1 is offered in a Pb-free SOD−323 package with Sn-only plating, qualified for standard lead-free reflow profiles up to 260°C for 10 seconds. The "G" suffix in MM3Z27VT1G explicitly denotes this Pb-free variant, and the device complies with JEDEC J-STD-020 moisture sensitivity level 1 - confirming full compatibility with modern RoHS-compliant manufacturing using the MM3Z27VT1.
What is the maximum reverse leakage current for MM3Z27VT1?
The MM3Z27VT1 specifies a maximum reverse leakage current of 0.05 µA at VR = 18.9 V (70% of nominal VZ), measured at 25°C. This ultra-low leakage enables use in battery-powered systems where standby current must be minimized - a key differentiator versus higher-leakage alternatives like MMBZ5256BS-7-F (1 µA at 21.6 V), making the MM3Z27VT1 especially valuable in always-on sensor nodes.
Can MM3Z27VT1 be used in automotive applications?
Yes, the MM3Z27VT1 is rated for junction and storage temperatures from −65°C to +150°C and qualified per AEC-Q200 stress tests for passive components. Its +21.4 mV/°C temperature coefficient, 200 mW power rating, and Class 3 HBM ESD robustness make it suitable for non-safety-critical automotive cabin applications - such as HVAC sensor biasing and infotainment power rail clamping - when used within its specified derating curve and layout guidelines for the MM3Z27VT1.
What is the thermal resistance (RJA) of MM3Z27VT1 on FR-5 board?
The MM3Z27VT1 has a thermal resistance of 635°C/W from junction to ambient on an FR-5 printed circuit board at 25°C ambient. This value governs power derating: above 25°C, the device must be derated by 1.5 mW/°C, reaching zero dissipation at approximately 162°C. Proper copper pour and thermal vias are recommended to maintain reliability when operating near thermal limits using the MM3Z27VT1.
MM3Z27VT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 27 V
- Tolerance:
- ±7%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 18.9 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
MM3Z27VT1 FAQ
1.How can I place an order for MM3Z27VT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MM3Z27VT1 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 MM3Z27VT1 reliable?
The price and inventory of MM3Z27VT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z27VT1 is usually 5 days.
3.What payment methods are accepted for MM3Z27VT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z27VT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM3Z27VT1?
MM3Z27VT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM3Z27VT1 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 MM3Z27VT1?
For technical support, including MM3Z27VT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z27VT1 requirements.
6.How does Aetrix verify that MM3Z27VT1 is sourced from the original manufacturer or authorized distributors?
All MM3Z27VT1 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 MM3Z27VT1 meets industry standards.
7.What is the process for return or replacement of MM3Z27VT1?
All MM3Z27VT1 units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z27VT1, 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 MM3Z27VT1 part is unused and in its original packaging.
Return procedure for MM3Z27VT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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