My Inquiry
My Account
Taiwan Semiconductor Corporation MMSZ4691 RHG
- Part No.:
- MMSZ4691 RHG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
MMSZ4691 RHG.pdf
- Description:
- DIODE ZENER 6.2V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MMSZ4691 RHG from Taiwan Semiconductor is a 6.2 V ±5% tolerance, 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 stable clamping at 50 mA test current with 10 µA leakage at 5.0 V reverse bias and operates across –55°C to +150°C junction temperature range.
For engineers reviewing the MMSZ4691 RHG datasheet, MMSZ4691 RHG pinout, MMSZ4691 RHG application, or MMSZ4691 RHG equivalent, key selection criteria include its 6.2 V nominal Zener voltage, 500 mW power rating, SOD-123 thermal resistance (340°C/W), cathode-band polarity marking, and compliance with RoHS and halogen-free standards.
Technical Context
The MMSZ4691 RHG functions as a two-terminal voltage reference device operating in reverse breakdown mode. Its Zener voltage is specified at 50 mA test current (IZT), with dynamic impedance optimized for low-noise regulation in feedback paths and supply rail clamp circuits.
It exhibits 10 µA maximum leakage current at VR = 5.0 V, supports full-rated power dissipation up to +25°C ambient, and derates linearly above that per the published power temperature curve - maintaining reliable operation in compact PCB layouts where thermal management is constrained by the SOD-123 footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.89–6.51 V @ IZT = 50 mA; ensures ±5% regulation window for 6.2 V nominal reference |
| Power Dissipation (PD) | 500 mW; defines maximum steady-state energy handling on standard 5 cm × 5 cm Cu pad |
| Junction Temperature (TJ) | –55°C to +150°C; enables use in automotive under-hood and industrial control environments |
| Leakage Current (IR) | ≤10 µA @ VR = 5.0 V; minimizes standby current loss in battery-powered sensing nodes |
| Thermal Resistance (RθJA) | 340°C/W; determines temperature rise above ambient under full load, critical for thermal layout planning |
| Package | SOD-123; 2.85 mm × 1.80 mm footprint with cathode band polarity indicator |
Pinout & Package
SOD-123 is a surface-mount plastic package with two terminals: anode and cathode. Polarity is marked by a visible cathode band on the body end. The device has no internal leads or substrate connections beyond these two terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common or lower-potential rail during Zener operation |
| Cathode | Regulated output node | Provides stable 6.2 V relative to anode when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| Constant voltage control | Enables stable 6.2 V reference generation without external feedback components |
| Moisture sensitivity level 1 | Eliminates bake requirements before reflow; compatible with standard SMT assembly lines |
| RoHS and halogen-free compliance | Meets IPC-J-STD-609 and EU Directive 2011/65/EU for environmentally restricted materials |
| UL 94V-0 molding compound | Ensures flame-retardant behavior in safety-critical power supply and interface modules |
Applications
| Power Supply Rail Clamp | ADC Reference Stabilization |
|---|---|
Use Scenario: Clamping 3.3 V or 5 V logic rails against transient overvoltage events in microcontroller peripherals. IC Role / Device Role / Timing Role: Zener diode acting as shunt regulator to divert excess current when rail exceeds 6.2 V. Use Value: Prevents latch-up or damage to downstream CMOS inputs using only one passive component with known breakdown threshold. | Use Scenario: Providing stable bias voltage to ADC reference input in sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Low-leakage (≤10 µA) voltage reference source for 12-bit analog-to-digital conversion. Use Value: Maintains <±0.5% reference accuracy over temperature and time without active regulation circuitry. |
| Low-Power Voltage Monitor | ESD Protection Interface |
Use Scenario: Detecting undervoltage conditions in battery-powered IoT endpoints using comparator input tied to MMSZ4691 RHG cathode. IC Role / Device Role / Timing Role: Passive threshold element defining trip point at ~6.2 V for brown-out detection. Use Value: Enables ultra-low-quiescent-current monitoring (<1 µA standby) with no additional bias network required. | Use Scenario: Secondary-level ESD protection on USB data lines or GPIO pins exposed to human contact. IC Role / Device Role / Timing Role: Fast-clamping Zener absorbing 8 kV HBM transients while limiting voltage to ≤6.51 V. Use Value: Complements TVS diodes by adding precise clamping near system supply rails without sacrificing speed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C6V2 | Same 6.2 V nominal Zener voltage, but 300 mW rating and SOD-323 package | Lower power handling and smaller footprint; unsuitable for sustained 500 mW loads | Select when board space is constrained and peak power remains below 300 mW |
| MMBZ5234B | 6.2 V nominal, 350 mW rating, SOT-23 package with different pinout (cathode on pin 3) | Higher thermal resistance (~400°C/W); requires PCB layout revision for replacement | Choose only if existing SOT-23 footprint and higher mounting density outweigh thermal trade-offs |
Compared with BZX584-C6V2 and MMBZ5234B, the MMSZ4691 RHG offers superior power handling (500 mW) and thermal performance (340°C/W) in the widely adopted SOD-123 form factor, making it optimal for general-purpose regulation where reliability and manufacturability are prioritized over minimal footprint.
Availability
MMSZ4691 RHG is available at Aetrix Electronics and suitable for power supply rail clamp, ADC reference stabilization, low-power voltage monitor, and ESD protection interface applications requiring stable component supply and consistent parametric performance across production batches.
Supply support for MMSZ4691 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 devices, analog ICs, and power management solutions for industrial, computing, and consumer markets.
The MMSZ4691 RHG belongs to TSC's MMSZ4678–MMSZ4716 family of 500 mW Zener diodes, engineered for high-volume, cost-sensitive applications demanding tight voltage tolerance, robust thermal performance, and full JEDEC-compliant packaging.
FAQ
What is the nominal Zener voltage of the MMSZ4691 RHG?
The MMSZ4691 RHG has a nominal Zener voltage of 6.2 V, with a guaranteed range of 5.89 V to 6.51 V at a test current of 50 mA. This specification is measured under standard conditions (TA = 25°C) and defines the primary voltage regulation point for which the MMSZ4691 RHG is selected in circuit design.
What package type does the MMSZ4691 RHG use?
The MMSZ4691 RHG uses the SOD-123 surface-mount package, measuring 2.85 mm × 1.80 mm with a 0.90 mm height. It features a cathode band for polarity identification and complies with JEDEC DO-215, Variation AD, Issue D mechanical standards.
What is the maximum power dissipation rating for the MMSZ4691 RHG?
The MMSZ4691 RHG has a maximum steady-state power dissipation of 500 mW at TA = 25°C, derating linearly above that temperature per the published power temperature curve. This rating assumes mounting on a 5 cm × 5 cm copper pad, and actual usable power depends on PCB thermal design.
Is the MMSZ4691 RHG RoHS and halogen-free compliant?
Yes, the MMSZ4691 RHG is fully RoHS compliant per EU Directive 2011/65/EU and halogen-free per IPC-J-STD-609. The molding compound also meets UL 94V-0 flammability requirements, supporting use in safety-certified end equipment.
What is the leakage current specification for the MMSZ4691 RHG?
The MMSZ4691 RHG specifies a maximum leakage current of 10 µA at VR = 5.0 V and TA = 25°C. This low leakage supports energy-efficient operation in battery-powered systems and precision analog circuits where standby current must be minimized.
MMSZ4691 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):
- 6.2 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 5 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
MMSZ4691 RHG FAQ
1.How can I place an order for MMSZ4691 RHG through Aetrix?
Please submit a Request for Quotation (RFQ) for MMSZ4691 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 MMSZ4691 RHG reliable?
The price and inventory of MMSZ4691 RHG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMSZ4691 RHG is usually 5 days.
3.What payment methods are accepted for MMSZ4691 RHG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMSZ4691 RHG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMSZ4691 RHG?
MMSZ4691 RHG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMSZ4691 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 MMSZ4691 RHG?
For technical support, including MMSZ4691 RHG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMSZ4691 RHG requirements.
6.How does Aetrix verify that MMSZ4691 RHG is sourced from the original manufacturer or authorized distributors?
All MMSZ4691 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 MMSZ4691 RHG meets industry standards.
7.What is the process for return or replacement of MMSZ4691 RHG?
All MMSZ4691 RHG units undergo pre-shipment inspection (PSI). If there is an issue with MMSZ4691 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 MMSZ4691 RHG part is unused and in its original packaging.
Return procedure for MMSZ4691 RHG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMSZ4691 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…
