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Diodes Incorporated MMBZ5232BT-7-F
- Part No.:
- MMBZ5232BT-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOT-523
- Datasheet:
-
MMBZ5232BT-7-F.pdf
- Description:
- DIODE ZENER 5.6V 150MW SOT523
- Quantity:
- Payment:
- Shipping:
Inventory:3,998
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Product details
Overview
MMBZ5232BT-7-F from Diodes Incorporated is a 5.6 V, 150 mW surface-mount Zener diode in SOT-523 package, with 5.32–5.88 V zener voltage tolerance at 20 mA test current, 11 Ω dynamic impedance, and ≤5 µA reverse leakage at 3.0 V. It provides precision voltage regulation in low-power signal conditioning and reference circuits.
For engineers reviewing the MMBZ5232BT-7-F datasheet, MMBZ5232BT-7-F pinout, MMBZ5232BT-7-F application, or MMBZ5232BT-7-F equivalent, this page delivers verified electrical specs, thermal derating behavior, SOT-523 terminal mapping, and direct alternatives for voltage reference design, ESD clamping, and overvoltage protection in space-constrained PCBs.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load and supply conditions. Its planar die construction ensures consistent breakdown characteristics and low thermal resistance (833 °C/W), enabling reliable operation up to +150 °C ambient.
Designed for automated SMT assembly, it features matte tin-plated Alloy 42 leads, RoHS compliance, and moisture sensitivity level 1. The device exhibits typical capacitance of ~30 pF at 5.6 V and supports non-repetitive surge power up to 1 W for 1 ms pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6 V nominal, 5.32–5.88 V min/max at 20 mA - defines regulated output voltage tolerance in reference circuits |
| Power Dissipation (PD) | 150 mW at 25 °C - limits continuous DC power handling on standard FR-4 PCB |
| Zener Impedance (ZZT) | 11 Ω at 20 mA - determines output voltage stability under small-signal load variation |
| Reverse Leakage (IR) | ≤5 µA at 3.0 V - ensures minimal quiescent current in standby or high-impedance bias networks |
| Thermal Resistance (RθJA) | 833 °C/W - requires careful layout to avoid junction overheating above 85 °C ambient |
| Operating Temperature | −65 to +150 °C - supports industrial and automotive under-hood applications with no derating below −40 °C |
Pinout & Package
Package: SOT-523 - ultra-small plastic surface-mount case (1.6 × 0.8 × 0.5 mm), UL 94V-0 rated, suitable for high-density routing and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Forward conduction terminal / cathode-side reference node | Connected to lower-potential rail; reverse-biased during regulation |
| Cathode (K) | Zener breakdown terminal / regulated output node | Connected to higher-potential rail; maintains stable voltage relative to anode |
| Case / Exposed Pad | Non-electrical mechanical interface | No internal connection; serves only as thermal and mechanical anchor |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SOT-523 footprint | Enables placement in <1.0 mm² board area - critical for wearables and sensor modules |
| 150 mW power rating with 833 °C/W RθJA | Supports stable regulation in thermally isolated traces without heatsinking |
| 11 Ω zener impedance at 20 mA | Delivers <±20 mV output shift under ±1 mA load change - suitable for 8-bit ADC references |
| RoHS-compliant & "Green" molding compound | Meets IPC-J-STD-020D Level 1 moisture sensitivity and halogen-free requirements |
Applications
| Power Supply Rail Clamp | Low-Voltage Reference Source |
|---|---|
Use Scenario: Clamping 5 V logic supply against transient spikes in microcontroller I/O lines. IC Role / Device Role / Timing Role: Shunt regulator absorbing surge energy above 5.6 V threshold. Use Value: Limits voltage excursion to ≤5.88 V with ≤5 µA leakage at 3 V - preserves GPIO integrity without loading idle rails. | Use Scenario: Providing stable 5.6 V reference for analog front-end comparators in battery-powered sensors. IC Role / Device Role / Timing Role: Passive voltage reference element with predictable temperature coefficient. Use Value: Delivers ±5% regulation over −40 to +85 °C with 11 Ω impedance - sufficient for 10-bit system accuracy. |
| ESD Protection Node | Signal-Level Voltage Limiter |
Use Scenario: Protecting USB D+ line from ±8 kV contact discharge per IEC 61000-4-2. IC Role / Device Role / Timing Role: Bidirectional clamp (with series resistor) limiting peak voltage to 5.88 V. Use Value: Responds within nanoseconds with <30 pF capacitance - avoids signal distortion at 12 Mbps full-speed USB. | Use Scenario: Limiting op-amp input swing to prevent phase reversal in single-supply instrumentation amps. IC Role / Device Role / Timing Role: Reverse-biased clamp referenced to ground or VREF. Use Value: Maintains ≤5.88 V clamping with <11 Ω dynamic resistance - minimizes input error during overvoltage events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C5V6 | Same 5.6 V nominal, but SOD-523 package (slightly larger); 10 Ω ZZT; 200 mW PD | Higher power margin allows 2× longer surge pulse handling | Prefer when board layout permits 1.8 × 1.2 mm footprint and >150 mW transient headroom is needed |
| MMBZ5232BS-7-F | Identical electrical specs; same SOT-523 package; differs only in tape-and-reel packaging (3,000 vs. 10,000 pcs/reel) | No functional difference - identical performance and fit | Select based on volume procurement requirement, not technical criteria |
Compared with BZX584-C5V6 and MMBZ5232BS-7-F, the MMBZ5232BT-7-F offers optimal balance of ultra-compact size, proven reliability in high-volume SMT lines, and precise 5.6 V regulation - making it preferred for miniaturized consumer and industrial control PCBs where board area is constrained.
Availability
MMBZ5232BT-7-F is available at Aetrix Electronics and suitable for power supply rail clamp, low-voltage reference source, and ESD protection node applications requiring stable component supply and consistent parametric performance across production batches.
Supply support for MMBZ5232BT-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-yield surface-mount voltage regulation and protection in cost-sensitive, space-constrained applications.
FAQ
What is the maximum reverse voltage before breakdown for MMBZ5232BT-7-F?
The device exhibits a nominal zener voltage of 5.6 V at 20 mA test current, with guaranteed breakdown between 5.32 V and 5.88 V. Below 3.0 V reverse bias, leakage remains ≤5 µA - confirming no significant conduction occurs prior to the specified zener region.
Can MMBZ5232BT-7-F be used in place of a 5.1 V Zener diode?
No - its 5.6 V nominal zener voltage and 5.32–5.88 V tolerance range do not overlap with 5.1 V devices like MMBZ5231BT (4.85–5.36 V). Substituting would raise regulated voltage by ≥250 mV, potentially violating downstream IC input limits.
Is thermal derating required for operation above 25 °C?
Yes - power dissipation must be linearly reduced above 25 °C using the 833 °C/W thermal resistance. At 85 °C ambient, maximum allowable power drops to 75 mW, calculated as 150 mW × (1 − (85 − 25)/833).
Does MMBZ5232BT-7-F have polarity marking on the package?
Yes - the SOT-523 package uses a molded cathode band (visible as a faint line near one end) and laser-marked "KE2" code. The cathode terminal is electrically identified as the Zener output node and must connect to the higher-potential side of the circuit.
MMBZ5232BT-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):
- 5.6 V
- Tolerance:
- ±5%
- Power - Max:
- 150 mW
- Impedance (Max) (Zzt):
- 11 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 3 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
MMBZ5232BT-7-F FAQ
1.How can I place an order for MMBZ5232BT-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5232BT-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 MMBZ5232BT-7-F reliable?
The price and inventory of MMBZ5232BT-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 MMBZ5232BT-7-F is usually 5 days.
3.What payment methods are accepted for MMBZ5232BT-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5232BT-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5232BT-7-F?
MMBZ5232BT-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5232BT-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 MMBZ5232BT-7-F?
For technical support, including MMBZ5232BT-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5232BT-7-F requirements.
6.How does Aetrix verify that MMBZ5232BT-7-F is sourced from the original manufacturer or authorized distributors?
All MMBZ5232BT-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 MMBZ5232BT-7-F meets industry standards.
7.What is the process for return or replacement of MMBZ5232BT-7-F?
All MMBZ5232BT-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5232BT-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 MMBZ5232BT-7-F part is unused and in its original packaging.
Return procedure for MMBZ5232BT-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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