My Inquiry
My Account
Taiwan Semiconductor Corporation MMSZ4704 RHG
- Part No.:
- MMSZ4704 RHG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
MMSZ4704 RHG.pdf
- Description:
- DIODE ZENER 17V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MMSZ4704 RHG from Taiwan Semiconductor is a surface-mount 17 V Zener diode in SOD-123 package, rated for 500 mW steady-state power dissipation, with ±5% nominal voltage tolerance (16.15–17.85 V), 50 µA test current, and 12.9 µA leakage at 13.6 V reverse bias. It serves as a precision voltage reference and overvoltage clamp in low-power analog signal conditioning circuits.
For engineers reviewing the MMSZ4704 RHG datasheet, MMSZ4704 RHG pinout, MMSZ4704 RHG application, or MMSZ4704 RHG equivalent, key selection criteria include its 17 V nominal Zener voltage, 500 mW power rating, SOD-123 thermal resistance (340°C/W), junction temperature range (−55°C to +150°C), and RoHS/halogen-free compliance for space-constrained industrial and consumer PCB designs.
Technical Context
The MMSZ4704 RHG operates as a silicon planar Zener diode optimized for stable reverse-breakdown regulation under DC or low-frequency transient conditions. Its design targets fixed-voltage reference generation and overvoltage protection where tight voltage tolerance and low leakage are required.
It exhibits a dynamic impedance of ≤40 Ω at IZT = 50 µA and typical capacitance of 25 pF at 1 V bias (f = 1 MHz), supporting stable performance in feedback networks and ESD-adjacent clamping nodes without introducing significant signal distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (Nominal) | 17 V - precise regulation point for 16.15–17.85 V range at 50 µA test current |
| PD | 500 mW - maximum continuous power dissipation on 5 cm × 5 cm Cu pad |
| IR @ VR = 13.6 V | 12.9 µA - low leakage ensures minimal quiescent current draw in standby mode |
| TJ Range | −55°C to +150°C - supports operation in extended-temperature industrial environments |
| RθJA | 340°C/W - thermal resistance informs derating above 25°C ambient |
| Package | SOD-123 - 2.85 mm × 1.80 mm footprint enables high-density PCB layouts |
Pinout & Package
Package: SOD-123 - surface-mount plastic case with cathode band marking; matte tin-plated leads compliant with J-STD-002 solderability; weight ≈10.97 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / reference ground node | Connected to circuit common when used in reverse-biased regulation configuration |
| Cathode | Zener breakdown terminal / regulated output node | Provides stable 17 V reference relative to anode; marked by visible band on body |
Key Features
| Feature | Design Value |
|---|---|
| Constant voltage control | Enables accurate 17 V reference generation with ±5% tolerance across operating temperature range |
| Moisture sensitivity level 1 | Eliminates need for dry-pack handling or baking prior to reflow assembly |
| RoHS and halogen-free compliance | Meets global environmental regulations for consumer and industrial end equipment |
| UL 94V-0 molding compound | Ensures flame-retardant behavior in safety-critical PCB assemblies |
Applications
| Power Supply Voltage Reference | Overvoltage Clamp in Sensor Interface |
|---|---|
Use Scenario: Providing stable 17 V reference for ADC biasing or op-amp feedback in isolated DC-DC converter auxiliary rails. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential relative to ground. Use Value: Maintains <±1% reference drift over −40°C to +85°C ambient due to low tempco and 500 mW thermal margin. | Use Scenario: Clamping transient spikes on 12 V sensor supply lines exposed to automotive load-dump events. IC Role / Device Role / Timing Role: Fast-acting shunt protector diverting excess energy to ground before downstream IC damage. Use Value: Limits peak voltage to ≤17.85 V with 12.9 µA leakage, minimizing standby power loss in always-on modules. |
| Low-Power Voltage Monitor Threshold | ESD-Sensitive Analog Front-End Protection |
Use Scenario: Setting trip point for comparator-based brown-out detection in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Precision voltage threshold element defining logic-high transition boundary. Use Value: Delivers repeatable 17 V trigger with ≤40 Ω dynamic impedance, ensuring fast response to supply sag. | Use Scenario: Secondary clamping stage after TVS diode in medical-grade ECG front-end signal path. IC Role / Device Role / Timing Role: Low-capacitance (25 pF) Zener stabilizing bias rail near high-impedance amplifier inputs. Use Value: Adds <1% gain error contribution while suppressing sub-100 ns transients below 17.85 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C16LT1G | 16 V nominal, SOT-23 package, 300 mW rating, higher leakage (25 µA @ 12.8 V) | Lower power handling and looser voltage tolerance (±6%) limit use in precision references | Preferred only where board space permits SOT-23 and 16 V suffices |
| MMBZ5246BS-7-F | 16 V nominal, SOD-323 package, 200 mW rating, tighter tolerance (±5%) but lower PD | Insufficient power margin for sustained 17 V clamping; unsuitable for >100 µA load currents | Select only for ultra-compact layouts where thermal derating is acceptable |
Compared with BZX84-C16LT1G and MMBZ5246BS-7-F, the MMSZ4704 RHG offers superior power capability (500 mW vs. ≤300 mW), exact 17 V nominal voltage, and lower leakage-making it the optimal choice for industrial voltage reference and clamping where thermal stability and accuracy are critical.
Availability
MMSZ4704 RHG is available at Aetrix Electronics and suitable for industrial power monitoring, sensor interface protection, and low-power voltage reference applications requiring stable component supply and long-term lifecycle continuity.
Supply support for MMSZ4704 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, automotive, and consumer markets.
The MMSZ series was designed specifically for high-reliability, low-profile Zener regulation in space-constrained applications-emphasizing tight voltage tolerance, moisture resilience (MSL 1), and consistent thermal performance in SOD-123 packaging.
FAQ
What is the nominal Zener voltage of the MMSZ4704 RHG?
The MMSZ4704 RHG has a nominal Zener voltage of 17 V, with a guaranteed range of 16.15 V to 17.85 V at 50 µA test current (IZT). This value is specified per Taiwan Semiconductor's official datasheet revision A2311 and reflects the device's primary function as a precision voltage reference or clamp in low-power circuits.
What package type does the MMSZ4704 RHG use?
The MMSZ4704 RHG uses the SOD-123 surface-mount package-a compact 2.85 mm × 1.80 mm plastic case with cathode band marking, matte tin-plated leads, and UL 94V-0 flammability rating. Its dimensions and solderability comply with J-STD-002, enabling reliable reflow assembly in high-density PCB layouts.
What is the maximum power dissipation rating for the MMSZ4704 RHG?
The MMSZ4704 RHG is rated for 500 mW steady-state power dissipation at 25°C ambient when mounted on a 5 cm × 5 cm copper pad. Derating is required above 25°C per the published power temperature curve, with full derating to zero at 150°C junction temperature.
Is the MMSZ4704 RHG RoHS and halogen-free compliant?
Yes, the MMSZ4704 RHG is fully RoHS compliant and halogen-free, meeting EU Directive 2011/65/EU and IPC-4101 requirements. This compliance is confirmed in the official Taiwan Semiconductor datasheet and supports use in environmentally regulated consumer, industrial, and medical electronics.
What is the leakage current specification for the MMSZ4704 RHG?
The MMSZ4704 RHG specifies a maximum leakage current of 12.9 µA at 13.6 V reverse bias (VR) and 25°C. This low leakage ensures minimal parasitic current draw in battery-powered or always-on systems where quiescent power budget is constrained.
MMSZ4704 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):
- 17 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 12.9 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
MMSZ4704 RHG FAQ
1.How can I place an order for MMSZ4704 RHG through Aetrix?
Please submit a Request for Quotation (RFQ) for MMSZ4704 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 MMSZ4704 RHG reliable?
The price and inventory of MMSZ4704 RHG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMSZ4704 RHG is usually 5 days.
3.What payment methods are accepted for MMSZ4704 RHG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMSZ4704 RHG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMSZ4704 RHG?
MMSZ4704 RHG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMSZ4704 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 MMSZ4704 RHG?
For technical support, including MMSZ4704 RHG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMSZ4704 RHG requirements.
6.How does Aetrix verify that MMSZ4704 RHG is sourced from the original manufacturer or authorized distributors?
All MMSZ4704 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 MMSZ4704 RHG meets industry standards.
7.What is the process for return or replacement of MMSZ4704 RHG?
All MMSZ4704 RHG units undergo pre-shipment inspection (PSI). If there is an issue with MMSZ4704 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 MMSZ4704 RHG part is unused and in its original packaging.
Return procedure for MMSZ4704 RHG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMSZ4704 RHG Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
