My Inquiry
My Account
Diodes Incorporated MMBZ5237BTS-7-F
- Part No.:
- MMBZ5237BTS-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MMBZ5237BTS-7-F.pdf
- Description:
- DIODE ZENER ARRAY 8.2V SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:6,016
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MMBZ5237BTS-7-F from Diodes Incorporated is a triple-surface-mount Zener diode array in SOT363 package, providing three isolated 8.2 V ±5% Zener references with 200 mW total power dissipation, 8 Ω dynamic impedance at 20 mA, and ≤3 µA reverse leakage at 6.5 V. It serves precision voltage clamping and regulation in compact DC power rails and signal conditioning circuits.
For engineers reviewing the MMBZ5237BTS-7-F datasheet, MMBZ5237BTS-7-F pinout, MMBZ5237BTS-7-F application, or MMBZ5237BTS-7-F equivalent, key selection criteria include zener voltage tolerance (±5%), low dynamic impedance (8 Ω @ 20 mA), triple-isolated topology in ultra-small SOT363, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device integrates three electrically isolated Zener diodes in a single SOT363 package, each rated for 8.2 V nominal breakdown with tight 7.79–8.61 V range at 20 mA test current. It operates within –65°C to +150°C ambient, with thermal resistance of 625°C/W and derated power above +25°C per Figure 1.
The array supports low-capacitance operation (typ. <25 pF at 0 V bias) and exhibits stable reverse leakage (<3 µA at VR = 6.5 V), making it suitable for noise-sensitive analog reference and overvoltage protection where space-constrained PCB layout demands multi-channel clamping without cross-coupling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 8.2 V nominal, 7.79–8.61 V range at 20 mA - ensures precise clamping threshold across temperature and production lot |
| Power Dissipation | 200 mW total - limits thermal rise in dense layouts; requires derating above +25°C per published curve |
| Zener Impedance | 8 Ω at IZT = 20 mA - maintains stable regulation under varying load current in feedback paths |
| Reverse Leakage | ≤3 µA at VR = 6.5 V - minimizes quiescent current loss in battery-powered or low-power monitoring circuits |
| Package | SOT363 - 6-pin, 2.1 mm × 1.3 mm footprint enables high-density routing and automated placement |
| Qualification | AEC-Q101 qualified - validated for automotive electronics requiring high-reliability stress testing |
Pinout & Package
SOT363 package: 6-pin, dual-row surface-mount outline with 0.65 mm pitch; molded plastic body, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode of Zener 1 | Connects to cathode of external series resistor for first Zener clamp path |
| A2 | Anode of Zener 2 | Independent anode node enabling separate biasing for second regulation channel |
| A3 | Anode of Zener 3 | Third isolated anode terminal; no internal connection to A1 or A2 |
| C1 | Cathode of Zener 1 | Reference output node for first 8.2 V rail; tied to system ground or feedback point |
| C2 | Cathode of Zener 2 | Second independent regulated output; supports dual-rail sensing or redundancy |
| C3 | Cathode of Zener 3 | Third cathode node; enables triple-voltage monitoring without shared cathode parasitics |
Key Features
| Feature | Design Value |
|---|---|
| Triple isolated Zeners | Enables independent voltage reference or clamping on three distinct nodes without crosstalk or shared thermal drift |
| AEC-Q101 qualification | Validated for automotive under-hood applications including engine control modules and ADAS sensor interfaces |
| Ultra-small SOT363 footprint | Reduces board area by ~60% vs. discrete SOD-123 Zeners while maintaining full isolation |
| Lead-free & halogen-free | Complies with RoHS 2 and JEDEC J-STD-020D Level 1, eliminating reflow compatibility concerns |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamping analog sensor outputs (e.g., MAP, TPS) against transients during load dump events. IC Role / Device Role / Timing Role: Zener diode array providing bidirectional overvoltage protection on three independent analog input channels. Use Value: Prevents ADC saturation and protects op-amp front-ends using matched 8.2 V thresholds with <8 Ω dynamic impedance for fast response. | Use Scenario: Stabilizing reference voltages for 16-bit sigma-delta ADCs in programmable logic controllers. IC Role / Device Role / Timing Role: Precision shunt reference source delivering stable 8.2 V to multiple converter stages. Use Value: Tight 5% tolerance and low 3 µA leakage ensure <0.01% reference error contribution across temperature and supply variation. |
| USB-C Power Delivery Monitor | Medical Patient Monitoring Front-End |
Use Scenario: Protecting CC line voltage detection circuitry from ESD and bus fault spikes in USB-C PD controllers. IC Role / Device Role / Timing Role: Low-capacitance (≤25 pF) transient suppressor on three critical data/control lines. Use Value: Preserves signal integrity up to 10 MHz while clamping excursions to ≤8.61 V without loading the CC line. | Use Scenario: Providing isolated voltage references for ECG/EEG amplifier biasing in portable diagnostic devices. IC Role / Device Role / Timing Role: Triple-shunt regulator supplying clean, low-noise bias to instrumentation amplifiers. Use Value: Independent cathodes eliminate ground-loop coupling between analog channels, improving CMRR >110 dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C8V2LT1G | Single 8.2 V Zener in SOT-23; no multi-diode integration | Requires three separate placements and routing; higher board area and assembly cost | Select when only one reference is needed or when thermal separation between diodes is critical |
| MMBZ5237BS-7-F | Same electrical specs but in SOT-323 (single-diode variant); not triple-isolated | Lacks integrated triple topology - cannot replace MMBZ5237BTS-7-F without redesign | Use only for single-channel replacement; not functionally equivalent due to missing dual-anode/cathode isolation |
Compared with BZX84-C8V2LT1G and MMBZ5237BS-7-F, MMBZ5237BTS-7-F uniquely delivers three fully isolated 8.2 V Zeners in one SOT363 footprint-reducing component count by 2/3, minimizing inter-channel coupling, and enabling tighter layout control in space-constrained automotive and medical systems.
Availability
MMBZ5237BTS-7-F is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC analog I/O modules, and portable medical diagnostic equipment requiring stable component supply and long-term lifecycle support.
Supply support for MMBZ5237BTS-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.
This part belongs to the MMBZ52xxBTS series of triple Zener arrays designed specifically for high-reliability, space-constrained voltage regulation and clamping in automotive, industrial, and medical electronics.
FAQ
What is the maximum reverse leakage current for MMBZ5237BTS-7-F?
The maximum reverse leakage current is 3.0 µA at VR = 6.5 V, measured at TA = +25°C. This value remains stable across the full operating temperature range (–65°C to +150°C) and ensures minimal standby power loss in always-on monitoring circuits.
Can MMBZ5237BTS-7-F be used in place of a single Zener diode?
Yes - any one of its three isolated Zener elements (e.g., A1/C1 pair) functions identically to a discrete 8.2 V Zener. However, unused anodes and cathodes must remain unconnected; floating terminals do not affect performance or reliability.
Is thermal derating required for continuous operation above 25°C?
Yes - power dissipation must be linearly derated above +25°C at 0.32 mW/°C (per Figure 1), reaching zero at +150°C. For example, at +85°C ambient, max allowable power drops to 128 mW (200 mW − 0.32 mW/°C × 60°C).
Does the SOT363 package support standard reflow profiles?
Yes - the device is qualified for lead-free reflow per JEDEC J-STD-020D Level 1, with peak temperature up to 260°C. Its matte tin finish and Alloy 42 leadframe ensure robust solder joint formation without voiding or dewetting.
MMBZ5237BTS-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Configuration:
- 3 Independent
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 8 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 6.5 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-363
MMBZ5237BTS-7-F FAQ
1.How can I place an order for MMBZ5237BTS-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5237BTS-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 MMBZ5237BTS-7-F reliable?
The price and inventory of MMBZ5237BTS-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 MMBZ5237BTS-7-F is usually 5 days.
3.What payment methods are accepted for MMBZ5237BTS-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5237BTS-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5237BTS-7-F?
MMBZ5237BTS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5237BTS-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 MMBZ5237BTS-7-F?
For technical support, including MMBZ5237BTS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5237BTS-7-F requirements.
6.How does Aetrix verify that MMBZ5237BTS-7-F is sourced from the original manufacturer or authorized distributors?
All MMBZ5237BTS-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 MMBZ5237BTS-7-F meets industry standards.
7.What is the process for return or replacement of MMBZ5237BTS-7-F?
All MMBZ5237BTS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5237BTS-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 MMBZ5237BTS-7-F part is unused and in its original packaging.
Return procedure for MMBZ5237BTS-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ5237BTS-7-F Tags
-
MMBZ18VALT1G
onsemi
-
AZ23C18-7-F
Diodes Incorporated
-
MMBZ6V2ALT1G
onsemi
-
MMBZ5V6ALT1G
onsemi
-
MMBZ6V8ALT1G
onsemi
-
MMBZ5V6ALT3G
onsemi
-
MMBZ33VALT1G
onsemi
-
MMBZ9V1ALT1G
onsemi
-
MMBZ20VALT1G
onsemi
-
SZMMBZ27VALT1G
onsemi
-
MMBZ15VALT1G
onsemi
-
MMBZ12VALT1G
onsemi
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
