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Taiwan Semiconductor Corporation MMSZ4693 RHG
- Part No.:
- MMSZ4693 RHG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
MMSZ4693 RHG.pdf
- Description:
- DIODE ZENER 7.5V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:2,900
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Product details
Overview
MMSZ4693 RHG from Taiwan Semiconductor is a 7.5 V, 500 mW surface-mount Zener diode in SOD-123 package, designed for precision voltage regulation and overvoltage protection in low-power analog and digital circuits. It delivers ±5% zener voltage tolerance at 50 mA test current, operates across –55°C to +150°C junction temperature, and features 5.7 µA leakage at 5.7 V reverse bias.
For engineers reviewing the MMSZ4693 RHG datasheet, MMSZ4693 RHG pinout, MMSZ4693 RHG application, or MMSZ4693 RHG equivalent, key selection criteria include nominal zener voltage (7.5 V), power rating (500 mW), thermal resistance (340 °C/W), cathode-band polarity marking, and SOD-123 footprint compatibility with high-density PCB layouts.
Technical Context
The MMSZ4693 RHG functions as a two-terminal voltage reference device operating in reverse breakdown mode. Its zener voltage is specified at 7.125 V (min) to 7.875 V (max) under 50 mA test current, with dynamic impedance typically below 15 Ω and capacitance < 30 pF at 1 MHz and 0 V bias.
It complies with J-STD-020 moisture sensitivity level 1, supports reflow soldering per J-STD-002, and uses matte tin-plated leads on a UL 94V-0 compliant molding compound - enabling reliable operation in industrial and consumer-grade environments without derating up to 125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.125–7.875 V at 50 mA - defines stable regulation point with ±5% tolerance for feedback or clamp circuits |
| Power Dissipation (PD) | 500 mW - sets maximum continuous power handling on standard 5 cm × 5 cm Cu pad |
| Junction Temperature Range | –55°C to +150°C - enables use in automotive under-hood or industrial control enclosures |
| Leakage Current (IR) | ≤5.7 µA at 5.7 V reverse bias - ensures minimal standby current in battery-powered sensing nodes |
| Thermal Resistance (RθJA) | 340 °C/W - determines temperature rise above ambient under full load; requires thermal pad design for >200 mW operation |
| Package | SOD-123 - 2.85 mm × 1.80 mm footprint with cathode band marking; compatible with automated pick-and-place |
Pinout & Package
SOD-123 is a two-terminal surface-mount package with cathode indicated by a visible band on the molded body. Terminals are matte tin-plated and solderable per J-STD-002. Weight is approximately 10.97 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node in shunt regulator | Connected to lower-potential side of circuit; forms return path during reverse-bias regulation |
| Cathode | Reverse-bias breakdown terminal / Regulated output node | Marked by band; connects to supply rail or signal line requiring clamped/stabilized voltage |
Key Features
| Feature | Design Value |
|---|---|
| Constant voltage control | Enables stable 7.5 V reference for ADC references, LDO feedback, or microcontroller reset thresholds |
| Moisture sensitivity level 1 | Eliminates bake requirement before reflow; supports standard SMT assembly without dry-pack handling |
| RoHS and halogen-free compliance | Meets EU environmental directives and IPC-1752 material declaration requirements for commercial and industrial shipments |
| UL 94V-0 molding compound | Provides flame-retardant encapsulation essential for safety-critical power supply and interface modules |
Applications
| Power Supply Regulation | Signal Clamping |
|---|---|
Use Scenario: Low-current 3.3 V or 5 V rail stabilization in IoT sensor nodes with limited board space. IC Role / Device Role / Timing Role: Shunt regulator providing precise 7.5 V reference for op-amp biasing or comparator hysteresis setting. Use Value: Maintains regulation accuracy within ±5% across –40°C to +85°C ambient while consuming <10 µA quiescent current in standby. | Use Scenario: Protecting MCU GPIO pins from ESD-induced voltage spikes in handheld medical devices. IC Role / Device Role / Timing Role: Bidirectional transient suppressor clamping input signals to 7.5 V during overvoltage events. Use Value: Limits peak voltage to ≤7.875 V with <5.7 µA leakage at 5.7 V, preserving signal integrity without loading source drivers. |
| Voltage Reference | Overvoltage Protection |
Use Scenario: Generating stable reference for 12-bit SAR ADCs in portable test equipment. IC Role / Device Role / Timing Role: Precision 7.5 V reference source replacing larger TL431-based circuits. Use Value: Delivers <15 Ω dynamic impedance and <30 pF capacitance, minimizing noise coupling into sensitive analog front-ends. | Use Scenario: Safeguarding USB-C CC line voltage against hot-swap transients in docking stations. IC Role / Device Role / Timing Role: Fast-response clamp limiting CC line to 7.5 V during plug-in surge events. Use Value: Responds within nanoseconds to transients up to 500 mW, preventing latch-up in USB PD controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C7V5 | Same 7.5 V nominal, but 300 mW rating and SOD-323 package; higher leakage (10 µA @ 5.7 V) | Lower power handling limits use in sustained clamp scenarios; smaller footprint may reduce thermal margin | Select when board area is constrained and peak power <300 mW; verify thermal relief on SOD-323 pads |
| MMBZ5227BS | 7.5 V nominal, 350 mW rating, SOT-23 package; tighter 5% tolerance but higher dynamic impedance (~30 Ω) | Three-pin SOT-23 requires routing for unused emitter; less suitable for simple two-terminal shunt roles | Prefer only if existing SOT-23 footprint reuse is mandatory; avoid where low-impedance regulation is critical |
Compared with BZX584C7V5 and MMBZ5227BS, the MMSZ4693 RHG offers superior thermal performance (500 mW/340 °C/W vs. 300–350 mW), verified SOD-123 manufacturability, and lower leakage - making it optimal for continuous-duty regulation in space-constrained industrial PCBs.
Availability
MMSZ4693 RHG is available at Aetrix Electronics and suitable for power supply regulation, signal clamping, voltage reference, and overvoltage protection applications requiring stable component supply, RoHS-compliant sourcing, and SOD-123 footprint consistency.
Supply support for MMSZ4693 RHG 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, analog ICs, and protection components for industrial, computing, and consumer markets.
The MMSZ4693 RHG belongs to TSC's MMSZ4678–MMSZ4716 family of 500 mW Zener diodes, engineered for high-reliability voltage regulation and transient suppression in compact, thermally demanding PCB layouts.
FAQ
What is the nominal zener voltage of the MMSZ4693 RHG?
The MMSZ4693 RHG has a nominal zener voltage of 7.5 V, with a guaranteed range of 7.125 V (minimum) to 7.875 V (maximum) at 50 mA test current. This tolerance aligns with industry-standard ±5% specification for general-purpose Zener diodes and is validated per Taiwan Semiconductor's A2311 datasheet revision.
What package type does the MMSZ4693 RHG use?
The MMSZ4693 RHG uses the SOD-123 surface-mount package - measuring 2.85 mm × 1.80 mm with a 0.95 mm height - featuring a cathode band for polarity identification and matte tin-plated leads compliant with J-STD-002 solderability standards.
Is the MMSZ4693 RHG RoHS and halogen-free compliant?
Yes, the MMSZ4693 RHG is fully RoHS compliant and halogen-free, meeting EU Directive 2011/65/EU and IPC-1752 material declaration requirements. These attributes are confirmed in the official Taiwan Semiconductor product documentation (Version A2311).
What is the maximum power dissipation rating for the MMSZ4693 RHG?
The MMSZ4693 RHG has a steady-state power dissipation rating of 500 mW at 25°C ambient, derating linearly above 25°C per the published thermal curve. Junction temperature must remain ≤150°C, and the device is rated for operation from –55°C to +150°C.
How is polarity marked on the MMSZ4693 RHG?
Polarity on the MMSZ4693 RHG is indicated by a cathode band printed on the molded body of the SOD-123 package. The banded end corresponds to the cathode terminal, which must be connected to the higher-potential side of the circuit during reverse-bias regulation or clamping operation.
MMSZ4693 RHG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 5.7 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
MMSZ4693 RHG FAQ
1.How can I place an order for MMSZ4693 RHG through Aetrix?
Please submit a Request for Quotation (RFQ) for MMSZ4693 RHG 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 MMSZ4693 RHG reliable?
The price and inventory of MMSZ4693 RHG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMSZ4693 RHG is usually 5 days.
3.What payment methods are accepted for MMSZ4693 RHG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMSZ4693 RHG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMSZ4693 RHG?
MMSZ4693 RHG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMSZ4693 RHG 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 MMSZ4693 RHG?
For technical support, including MMSZ4693 RHG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMSZ4693 RHG requirements.
6.How does Aetrix verify that MMSZ4693 RHG is sourced from the original manufacturer or authorized distributors?
All MMSZ4693 RHG 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 MMSZ4693 RHG meets industry standards.
7.What is the process for return or replacement of MMSZ4693 RHG?
All MMSZ4693 RHG units undergo pre-shipment inspection (PSI). If there is an issue with MMSZ4693 RHG, 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 MMSZ4693 RHG part is unused and in its original packaging.
Return procedure for MMSZ4693 RHG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMSZ4693 RHG Tags
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