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Diodes Incorporated MMBZ5223BT-7-F
- Part No.:
- MMBZ5223BT-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOT-523
- Datasheet:
-
MMBZ5223BT-7-F.pdf
- Description:
- DIODE ZENER 2.7V 150MW SOT523
- Quantity:
- Payment:
- Shipping:
Inventory:9,482
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Product details
Overview
MMBZ5223BT-7-F from Diodes Incorporated is a 2.7 V, 150 mW surface-mount Zener diode in SOT-523 package, rated for 20 mA test current, 30 Ω dynamic impedance at 1 kHz, and 75 μA reverse leakage at 1.0 V reverse bias. It provides precision voltage regulation in low-power signal conditioning and reference circuits.
For engineers reviewing the MMBZ5223BT-7-F datasheet, MMBZ5223BT-7-F pinout, MMBZ5223BT-7-F application, or MMBZ5223BT-7-F equivalent, key selection criteria include nominal Zener voltage tolerance (±4.4%), thermal resistance (833 °C/W), power derating above 25 °C, and compatibility with automated SMT assembly on FR-4 PCBs.
Technical Context
This Zener diode uses planar die construction to ensure stable breakdown characteristics and low leakage across -65 °C to +150 °C operating range. Its 2.7 V nominal Zener voltage is specified at 20 mA test current with ±4.4% tolerance (2.57–2.84 V), and exhibits 1300 Ω maximum knee impedance at 0.25 mA.
Designed for general-purpose voltage regulation and overvoltage clamping, it delivers 75 μA max reverse leakage at VR = 1.0 V and maintains 30 Ω typical Zener impedance at IZT, supporting stable DC reference generation in space-constrained analog subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 2.7 V - precise DC reference point for biasing or clamping at 20 mA test current |
| Zener Voltage Tolerance | ±4.4% (2.57–2.84 V) - ensures predictable regulation window under production variation |
| Power Dissipation | 150 mW - limits continuous operation to ≤20 mA at 25 °C ambient without heatsinking |
| Zener Impedance | 30 Ω @ 1 kHz, 20 mA - defines AC regulation stability in feedback or filtering applications |
| Reverse Leakage Current | 75 μA @ VR = 1.0 V - determines minimum off-state current in protection circuits |
| Thermal Resistance | 833 °C/W - dictates temperature rise per mW dissipated on standard FR-4 layout |
| Package | SOT-523 - 1.6 mm × 0.8 mm footprint enabling high-density PCB placement |
Pinout & Package
SOT-523 ultra-small plastic surface-mount package with gull-wing leads; polarity indicated by cathode band on top view; terminals solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower potential node during normal forward bias; used for polarity identification in layout |
| Cathode | Zener breakdown terminal | Connected to higher potential node during regulation; marked side on package; carries regulated output current |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SOT-523 footprint | Enables placement in <1.0 mm² board area, critical for wearables and sensor modules |
| Planar die construction | Ensures repeatable Zener voltage distribution and long-term parameter stability |
| 150 mW power rating | Supports regulation in low-current analog rails (e.g., ADC references, op-amp bias) |
| Lead-free/RoHS-compliant plating | Matte tin finish over Alloy 42 leadframe meets IPC-J-STD-020 Level 1 moisture sensitivity |
Applications
| Portable Sensor Reference | USB Interface Clamp |
|---|---|
Use Scenario: Providing stable 2.7 V reference for MEMS sensor signal conditioning in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference for ADC input scaling and op-amp bias networks. Use Value: Tight 2.57–2.84 V tolerance ensures consistent full-scale mapping across temperature and unit variance. | Use Scenario: Clamping D+ and D− lines against ESD transients in USB 2.0 peripheral designs. IC Role / Device Role / Timing Role: Low-capacitance (<5 pF) Zener used as bidirectional transient suppressor at interface pins. Use Value: 75 μA leakage at 1.0 V prevents false signaling while maintaining fast response to >2.7 V surges. |
| Low-Power Microcontroller Reset | Industrial Signal Isolation Bias |
Use Scenario: Generating clean reset threshold for 3.3 V microcontrollers in energy-harvesting systems. IC Role / Device Role / Timing Role: Shunt regulator establishing reliable POR (power-on reset) voltage level during brown-out conditions. Use Value: 150 mW rating allows sustained operation at 20 mA, supporting RC-based timing with minimal drift. | Use Scenario: Biasing optocoupler input LEDs in isolated analog front-ends for PLC modules. IC Role / Device Role / Timing Role: Precision voltage clamp setting LED forward current in galvanically isolated feedback paths. Use Value: 30 Ω Zener impedance minimizes current variation across supply ripple, improving isolation accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C2V7 | 2.7 V, 300 mW, SOD-523 package; 200 Ω max ZZT @ 5 mA | Higher power rating enables higher current clamping but larger footprint (1.2 × 0.8 mm vs. 1.6 × 0.8 mm) | Select when >150 mW dissipation or lower impedance at low current is required |
| MMBZ5223BS-7-F | Identical electrical specs; SOT-23 package instead of SOT-523 | Larger pad layout (2.9 × 1.3 mm) eases hand-soldering but reduces board density | Select for prototyping or manual assembly where SOT-523 reflow is challenging |
Compared with BZX584C2V7 and MMBZ5223BS-7-F, MMBZ5223BT-7-F offers optimal balance of ultra-compact size, 150 mW capability, and tight 2.7 V regulation-ideal for automated high-volume SMT in space-limited consumer and industrial electronics.
Availability
MMBZ5223BT-7-F is available at Aetrix Electronics and suitable for portable sensor reference, USB interface clamp, and low-power microcontroller reset applications requiring stable component supply and RoHS-compliant sourcing.
Supply support for MMBZ5223BT-7-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
The MMBZ52xxBT series belongs to Diodes' general-purpose Zener diode product line, engineered specifically for compact, high-reliability voltage regulation and transient suppression in consumer, computing, and industrial surface-mount applications.
FAQ
What is the maximum reverse voltage before breakdown for MMBZ5223BT-7-F?
The device exhibits nominal Zener breakdown at 2.7 V with a guaranteed range of 2.57 V to 2.84 V at 20 mA test current. Below 1.0 V reverse bias, leakage remains ≤75 μA; no defined "maximum reverse voltage" exists prior to breakdown-it operates as a controlled avalanche device once voltage exceeds the specified Zener range.
Can MMBZ5223BT-7-F be used in place of a 2.5 V Zener diode?
No-MMBZ5223BT-7-F is strictly a 2.7 V device with ±4.4% tolerance. Substituting it for a 2.5 V Zener introduces a 8% systematic offset, potentially causing incorrect biasing or trip-point errors in reference or protection circuits. Use MMBZ5221BT-7-F (2.4 V nominal) if 2.5 V is required.
Is thermal derating required for operation above 25 °C ambient?
Yes-its 833 °C/W junction-to-ambient thermal resistance requires linear derating: power must decrease by 0.18 mW/°C above 25 °C. At 85 °C ambient, maximum allowable dissipation drops to 39 mW, limiting usable Zener current to ~14.4 mA at 2.7 V.
Does MMBZ5223BT-7-F have a specified capacitance value?
No specific capacitance is listed in the datasheet, but Figure 4 shows typical total capacitance for 2.7 V Zeners is <5 pF. This low value supports use in high-frequency clamping and RF-bias applications where parasitic loading must be minimized.
MMBZ5223BT-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.7 V
- Tolerance:
- ±5%
- Power - Max:
- 150 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 75 µA @ 1 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:
- SOT-523
MMBZ5223BT-7-F FAQ
1.How can I place an order for MMBZ5223BT-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5223BT-7-F 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 MMBZ5223BT-7-F reliable?
The price and inventory of MMBZ5223BT-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ5223BT-7-F is usually 5 days.
3.What payment methods are accepted for MMBZ5223BT-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5223BT-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5223BT-7-F?
MMBZ5223BT-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5223BT-7-F 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 MMBZ5223BT-7-F?
For technical support, including MMBZ5223BT-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5223BT-7-F requirements.
6.How does Aetrix verify that MMBZ5223BT-7-F is sourced from the original manufacturer or authorized distributors?
All MMBZ5223BT-7-F 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 MMBZ5223BT-7-F meets industry standards.
7.What is the process for return or replacement of MMBZ5223BT-7-F?
All MMBZ5223BT-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5223BT-7-F, 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 MMBZ5223BT-7-F part is unused and in its original packaging.
Return procedure for MMBZ5223BT-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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