My Inquiry
My Account
onsemi MMQA13VT1G
- Part No.:
- MMQA13VT1G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-74, SOT-457
- Datasheet:
-
MMQA13VT1G.pdf
- Description:
- TVS DIODE 9.8VWM 18.6VC SC74
- Quantity:
- Payment:
- Shipping:
Inventory:7,806
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MMQA13VT1G from ON Semiconductor is a quad monolithic common-anode ESD protection diode designed for transient overvoltage suppression on four independent signal lines. It features a nominal Zener voltage of 13 V, maximum clamping voltage of 18.6 V at 1 A surge current, and ESD rating >16 kV per Human Body Model. Its SC−74 package enables compact PCB layout in space-constrained interfaces such as USB, keyboard, and microprocessor I/O buses.
For engineers reviewing the MMQA13VT1G datasheet, pinout, applications, or equivalent options, key selection criteria include unidirectional clamping performance, low leakage (<75 nA), thermal derating on FR-5 board, and compatibility with automated SMT assembly in high-density consumer and industrial electronics.
Technical Context
The MMQA13VT1G implements a quad-junction common-anode silicon structure, enabling four independent unidirectional ESD protection paths sharing one anode terminal (pins 2 and 5). Each cathode–anode pair operates with specified breakdown (12.4–13.7 V), clamping (18.6 V max @ 1 A), and low dynamic impedance (1.29 Ω).
It supports two standardized transient waveforms: 10/1000 µs (24 W peak) and 8/20 µs (150 W peak), with thermal resistance of 556 °C/W on FR-5 board. The device is Pb-free, RoHS compliant, and qualified to AEC−Q101 when ordered with SZ prefix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZT) | 12.4–13.7 V min–max at 1 mA test current; defines precise DC clamping threshold for overvoltage cutoff. |
| Clamping Voltage (VRSM) | 18.6 V max at 1 A peak pulse; ensures downstream ICs see ≤18.6 V during ESD transients. |
| Peak Pulse Power | 24 W @ 1.0 ms (10/1000 µs); sustains short-duration surges without failure in data-line protection. |
| ESD Rating (HBM) | Class 3B (>16 kV); exceeds IEC 61000-4-2 Level 4 for robust system-level ESD immunity. |
| Reverse Leakage (IR) | ≤75 nA @ 9.8 V; minimizes standby power loss and signal integrity impact in high-impedance circuits. |
| Capacitance (CJ) | 15 pF @ 0 V, 1 MHz; low enough for <100 Mbps digital interfaces without signal distortion. |
| Thermal Resistance (RJA) | 556 °C/W on FR-5 board; determines safe operating ambient range under continuous power dissipation. |
Pinout & Package
SC−74 (Case 318F) surface-mount package: 6-pin, void-free thermosetting plastic body, Pb-free, optimized for automated placement and reflow soldering. Dimensions: 3.0 × 1.5 × 1.0 mm (L × W × H), 0.95 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Channel A) | ESD current path for first protected line; connects to I/O trace, anode tied to ground or bias rail. |
| 2 | Anode (Common) | Shared anode node for all four channels; typically connected to GND or VCC depending on unidirectional configuration. |
| 3 | Cathode (Channel B) | Second independent ESD path; electrically isolated from other cathodes except via shared anode. |
| 4 | Cathode (Channel C) | Third protected line; enables discrete clamping control per signal without cross-talk. |
| 5 | Anode (Common) | Redundant anode terminal for improved current spreading and lower parasitic inductance. |
| 6 | Cathode (Channel D) | Fourth ESD channel; completes quad-line protection in single footprint-reduces component count by 75% vs discrete diodes. |
Key Features
| Feature | Design Value |
|---|---|
| Quad common-anode architecture | Four independent unidirectional ESD paths share two anode pins (2 & 5), minimizing PCB real estate and routing complexity. |
| Low clamping voltage (18.6 V) | Protects 12 V-rated logic and interface ICs by limiting transient voltage below damage thresholds during 1 A surges. |
| High ESD immunity (≥16 kV HBM) | Meets or exceeds IEC 61000-4-2 Level 4 requirements without external shielding or layout reinforcement. |
| Low capacitance (15 pF) | Preserves signal edge rate and eye diagram integrity in USB 2.0, RS-232, and parallel bus applications. |
| Pb-free & RoHS-compliant | Enables compliance with global environmental regulations and supports lead-free reflow profiles (260 °C max). |
Applications
| USB 2.0 Interface Protection | Keyboard/Mouse I/O Protection |
|---|---|
|
Use Scenario: Protecting D+ and D− data lines, VBUS, and ID pins of USB connectors against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed between connector and USB transceiver IC. Use Value: Prevents latch-up or gate oxide damage in USB PHYs while maintaining <40 ps rise-time signal fidelity due to 15 pF capacitance. |
Use Scenario: Shielding matrix scan lines and interrupt lines in PC peripheral keyboards and optical mice from user-hand ESD. IC Role / Device Role / Timing Role: Common-anode clamp on row/column I/O lines, referenced to system ground. Use Value: Eliminates need for four discrete diodes; reduces BOM count and layout area by >60% versus SOT-23 solutions. |
| Microprocessor Bus Protection | Industrial Control I/O Protection |
|
Use Scenario: Safeguarding address/data/control bus lines (e.g., GPIO, SPI, I²C) of embedded microcontrollers from board-level transients. IC Role / Device Role / Timing Role: Low-leakage (≤75 nA) shunt protector on bidirectional signal traces with shared ground reference. Use Value: Maintains bus signal integrity during 10/1000 µs surges up to 24 W without degrading logic high/low levels. |
Use Scenario: Hardening digital input/output terminals of PLC modules and sensor interface boards exposed to field wiring noise and contact discharge. IC Role / Device Role / Timing Role: Quad-channel ESD guard on isolated 24 V or 12 V I/O lines with common return path. Use Value: Supports 150 W 8/20 µs surge handling-enables Class B industrial EMC compliance without additional TVS arrays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMQA12VT1G | Lower nominal Zener voltage (12 V vs 13 V); clamping voltage 17.3 V max at 1 A. | Better suited for 12 V logic rails or systems requiring tighter clamping margin below 18 V. | Select when protecting 12 V-tolerant interfaces where 13 V nominal may cause premature conduction. |
| MMQA15VT1G | Higher nominal Zener voltage (15 V vs 13 V); clamping voltage 21.7 V max at 1 A. | Preferred for 15 V supply domains or higher-voltage industrial I/O where 13 V clamping risks false triggering. | Choose for 15 V systems needing headroom above typical operating voltage while retaining same SC−74 footprint. |
Compared with MMQA12VT1G and MMQA15VT1G, the MMQA13VT1G provides optimal clamping alignment for 13.3 V nominal supply rails (e.g., automotive infotainment USB ports), balancing surge margin and false-trigger immunity without changing PCB layout.
Availability
MMQA13VT1G is available at Aetrix Electronics and suitable for USB interface protection, keyboard/mouse I/O hardening, and microprocessor bus safeguarding requiring stable component supply across high-volume consumer and industrial production programs.
Supply support for MMQA13VT1G 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
ON Semiconductor is a global semiconductor manufacturer specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and consumer markets.
The MMQA series belongs to ON Semiconductor's ESD protection product line, engineered specifically for high-density, multi-line transient suppression in space-constrained digital interfaces with stringent reliability requirements.
FAQ
What is the exact Zener voltage tolerance for MMQA13VT1G?
The MMQA13VT1G has a guaranteed Zener voltage range of 12.4 V (min) to 13.7 V (max) at 1.0 mA test current, measured per JEDEC JESD22-A114 specification. This ±5% tolerance ensures predictable clamping behavior across temperature and process variation, critical for consistent protection in 12–14 V system designs.
Can MMQA13VT1G be used in bidirectional ESD protection configurations?
No - MMQA13VT1G is strictly unidirectional, configured as four cathode-to-common-anode diodes. For bidirectional protection, separate back-to-back diode pairs or dedicated bidirectional TVS arrays (e.g., NUP4201MR6T1G) must be used. Its pinout and internal structure do not support reverse-bias clamping.
What is the maximum allowable junction temperature for MMQA13VT1G?
The MMQA13VT1G has a junction and storage temperature range of −55 °C to +150 °C. Operation beyond +150 °C risks permanent parametric shift or catastrophic failure; derating curves in Figure 4 require power reduction above 25 °C ambient to maintain safe TJ under sustained surge conditions.
How does the dual-anode pin configuration (pins 2 and 5) affect PCB layout?
Pins 2 and 5 are internally connected as a single common anode node. Layout best practice is to tie both pins directly to the same low-inductance ground or bias plane using short, wide copper pours - this reduces loop inductance during ESD events and improves clamping response time for all four channels simultaneously.
Is MMQA13VT1G suitable for automotive applications?
Yes - the SZMMQA13VT1G variant is AEC−Q101 qualified and PPAP capable for automotive use. The standard MMQA13VT1G is not automotive-qualified; only parts marked with "SZ" prefix meet automotive reliability and traceability requirements per AEC standards.
MMQA13VT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SC-74, SOT-457
- Series:
- MMQA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9.8V (Max)
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.6V
- Current - Peak Pulse (10/1000µs):
- 1.29A (8/20µs)
- Power - Peak Pulse:
- 150W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-74
MMQA13VT1G FAQ
1.How can I place an order for MMQA13VT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for MMQA13VT1G 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 MMQA13VT1G reliable?
The price and inventory of MMQA13VT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMQA13VT1G is usually 5 days.
3.What payment methods are accepted for MMQA13VT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMQA13VT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMQA13VT1G?
MMQA13VT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMQA13VT1G 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 MMQA13VT1G?
For technical support, including MMQA13VT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMQA13VT1G requirements.
6.How does Aetrix verify that MMQA13VT1G is sourced from the original manufacturer or authorized distributors?
All MMQA13VT1G 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 MMQA13VT1G meets industry standards.
7.What is the process for return or replacement of MMQA13VT1G?
All MMQA13VT1G units undergo pre-shipment inspection (PSI). If there is an issue with MMQA13VT1G, 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 MMQA13VT1G part is unused and in its original packaging.
Return procedure for MMQA13VT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMQA13VT1G Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
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…
