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Diodes Incorporated MMBZ5248BTS-7-F
- Part No.:
- MMBZ5248BTS-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MMBZ5248BTS-7-F.pdf
- Description:
- DIODE ZENER ARRAY 18V SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:6,352
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Product details
Overview
MMBZ5248BTS-7-F from Diodes Incorporated is a triple-surface-mount Zener diode array in SOT363 package, providing three isolated 18 V ±5% Zener references with 7.0 mA test current, 21 Ω dynamic impedance at 1 kHz, and 0.1 µA reverse leakage at 14 V. It delivers precision voltage regulation for low-power biasing and protection in compact PCB layouts.
For engineers reviewing the MMBZ5248BTS-7-F datasheet, MMBZ5248BTS-7-F pinout, MMBZ5248BTS-7-F application, or MMBZ5248BTS-7-F equivalent, key selection criteria include nominal Zener voltage tolerance (±5%), thermal resistance (625 °C/W), power dissipation (200 mW), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device integrates three independent Zener diodes in a single ultra-small SOT363 package, enabling space-constrained designs requiring multiple stable reference voltages. Each diode operates with a nominal Zener voltage of 18 V, specified at IZT = 7.0 mA and characterized with ZZT = 21 Ω at 1 kHz.
It supports automated surface-mount assembly and meets AEC-Q101 stress testing for high-reliability automotive applications. Thermal derating follows a linear curve from 200 mW at 25°C to zero at 150°C ambient, with junction-to-ambient thermal resistance fixed at 625 °C/W on FR4 board per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 18 V nominal, 17.1–18.9 V range at 7.0 mA - ensures ±5% regulation accuracy under standard test conditions |
| Power Dissipation (PD) | 200 mW maximum at TA = 25°C - defines safe continuous DC power handling on standard FR4 layout |
| Zener Impedance (ZZT) | 21 Ω at IZT = 7.0 mA, f = 1 kHz - indicates low AC impedance for stable reference performance under small-signal variation |
| Reverse Leakage (IR) | 0.1 µA max at VR = 14 V - confirms minimal off-state current for low-power standby circuits |
| Thermal Resistance (RθJA) | 625 °C/W - determines temperature rise per watt; requires thermal-aware layout for sustained operation above 25°C ambient |
| Operating Temperature | −65°C to +150°C - enables use in under-hood automotive, industrial control, and extended-temperature sensor interfaces |
Pinout & Package
Package: SOT363 - ultra-small 6-pin surface-mount plastic package (2.10 mm × 1.30 mm × 0.95 mm), rated UL 94V-0, moisture sensitivity level 1, lead-free matte tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Input terminal for first Zener diode (cathode internally connected to C1) |
| A2 | Anode 2 | Input terminal for second Zener diode (cathode internally connected to C2) |
| A3 | Anode 3 | Input terminal for third Zener diode (cathode internally connected to C3) |
| C1 | Cathode 1 | Output/reference node for first Zener diode; reverse-biased connection point |
| C2 | Cathode 2 | Output/reference node for second Zener diode; electrically isolated from C1 and C3 |
| C3 | Cathode 3 | Output/reference node for third Zener diode; fully isolated from other cathodes |
Key Features
| Feature | Design Value |
|---|---|
| Triple isolated Zener structure | Enables three independent 18 V reference or clamping paths without cross-coupling in one footprint |
| AEC-Q101 qualification | Validated for automotive electronics including body control modules and sensor signal conditioning |
| Lead-free & halogen-free construction | Meets RoHS 2 (2011/65/EU) and "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb) |
| SOT363 ultra-small package | Reduces PCB area by ~50% vs. discrete SOD-323 Zeners while maintaining full isolation |
Applications
| Automotive Sensor Biasing | Industrial Analog Input Protection |
|---|---|
Use Scenario: Providing stable 18 V reference for analog front-end circuitry in engine control unit (ECU) pressure sensors. IC Role / Device Role / Timing Role: Zener diode array supplying regulated bias voltage to op-amp input stages and ADC reference dividers. Use Value: Maintains ±5% voltage stability across −40°C to +125°C ambient, ensuring consistent sensor gain calibration without external regulators. | Use Scenario: Clamping transient overvoltage on 4–20 mA current loop inputs in PLC analog modules. IC Role / Device Role / Timing Role: Three-channel bidirectional ESD/transient suppressor using reverse-biased Zener configuration per channel. Use Value: Limits input voltage to ≤18.9 V during surges up to 100 W (1 ms pulse), protecting downstream instrumentation amplifiers. |
| Portable Medical Device Power Monitoring | Consumer Audio DC Rail Stabilization |
Use Scenario: Monitoring battery voltage thresholds in handheld pulse oximeters with dual-supply analog circuitry. IC Role / Device Role / Timing Role: Independent Zener reference generator for comparator trip points detecting 3.3 V, 5 V, and 12 V rail faults. Use Value: Enables three distinct undervoltage lockout thresholds using one SOT363 footprint, reducing BOM count and layout complexity. | Use Scenario: Stabilizing auxiliary 18 V supply rails in Class D amplifier feedback networks. IC Role / Device Role / Timing Role: Low-impedance shunt regulator maintaining clean reference for error amplifier compensation. Use Value: 21 Ω ZZT minimizes ripple-induced modulation distortion in audio output stage feedback paths. |
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-C18LT1G | Single 18 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 Zener is needed or when legacy SOT-23 footprint compatibility is mandatory |
| MMBZ5248BS-7-F | Same electrical specs but in SOT-323 (single-diode variant); not triple-isolated | Lacks integrated triple-channel isolation; unsuitable for multi-rail referencing | Choose only if triple-diode functionality is unnecessary and smaller single-diode footprint is preferred |
Compared with BZX84-C18LT1G and MMBZ5248BS-7-F, MMBZ5248BTS-7-F uniquely delivers three isolated 18 V Zeners in one SOT363 footprint-reducing component count, PCB area, and assembly steps where multi-rail biasing or parallel protection is required.
Availability
MMBZ5248BTS-7-F is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial analog input protection, and portable medical device power monitoring requiring stable component supply and AEC-Q101 compliance.
Supply support for MMBZ5248BTS-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, specializing in high-reliability components for automotive, industrial, and consumer markets.
The MMBZ52xxBTS series belongs to Diodes' AEC-Q101-qualified Zener diode portfolio, designed specifically for space-constrained, high-stability voltage reference and transient suppression in automotive electronics and ruggedized industrial systems.
FAQ
What is the Zener voltage tolerance for MMBZ5248BTS-7-F?
The MMBZ5248BTS-7-F has a nominal Zener voltage of 18 V with a guaranteed range of 17.1 V to 18.9 V at IZT = 7.0 mA, representing ±5% tolerance. This specification is verified per DS30184 Rev. 13 and applies under standard test conditions (TA = +25°C, short-pulse measurement).
Is MMBZ5248BTS-7-F suitable for automotive applications?
Yes - it is qualified to AEC-Q101 standards for high-reliability automotive use, including temperature cycling, humidity testing, and mechanical shock. Its operating range (−65°C to +150°C), lead-free "Green" construction, and SOT363 package make it appropriate for under-hood and cabin ECUs, sensor modules, and body electronics.
How does the SOT363 package affect thermal performance?
The SOT363 package has a junction-to-ambient thermal resistance of 625 °C/W on FR4 with Diodes' recommended pad layout (AP02001). At 200 mW dissipation, this yields a 125°C junction rise above ambient - requiring layout attention for sustained operation above 25°C ambient or derating per Figure 1 in DS30184.
Can MMBZ5248BTS-7-F replace discrete Zeners in existing designs?
Yes, provided the PCB layout accommodates the SOT363 6-pin footprint and each anode/cathode pair is correctly routed. Its three isolated channels allow direct substitution for three SOD-323 or SOT-23 Zeners, reducing component count and improving matching between reference paths due to monolithic construction.
MMBZ5248BTS-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):
- 18 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 21 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 14 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
MMBZ5248BTS-7-F FAQ
1.How can I place an order for MMBZ5248BTS-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5248BTS-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 MMBZ5248BTS-7-F reliable?
The price and inventory of MMBZ5248BTS-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 MMBZ5248BTS-7-F is usually 5 days.
3.What payment methods are accepted for MMBZ5248BTS-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5248BTS-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5248BTS-7-F?
MMBZ5248BTS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5248BTS-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 MMBZ5248BTS-7-F?
For technical support, including MMBZ5248BTS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5248BTS-7-F requirements.
6.How does Aetrix verify that MMBZ5248BTS-7-F is sourced from the original manufacturer or authorized distributors?
All MMBZ5248BTS-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 MMBZ5248BTS-7-F meets industry standards.
7.What is the process for return or replacement of MMBZ5248BTS-7-F?
All MMBZ5248BTS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5248BTS-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 MMBZ5248BTS-7-F part is unused and in its original packaging.
Return procedure for MMBZ5248BTS-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ5248BTS-7-F Tags
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Diodes Incorporated
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