My Inquiry
My Account
Taiwan Semiconductor Corporation SMCJ110AH
- Part No.:
- SMCJ110AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ110AH.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,298
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ110AH from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 110V working stand-off voltage (VWM), 122–135V breakdown voltage (VBR), and 177V maximum clamping voltage (VC) at 8.9A peak pulse current. It delivers AEC-Q101 qualification and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump and ESD protection in power rails.
For engineers reviewing the SMCJ110AH datasheet, SMCJ110AH pinout, SMCJ110AH application, or SMCJ110AH equivalent, this device is selected for high-energy transient suppression in 12V/24V/48V automotive ECUs, industrial PLC I/O modules, and telecom DC power inputs where fast response (<1.0ps), low leakage (<1µA @ 110V), and robust 150°C junction operation are required.
Technical Context
The SMCJ110AH uses a glass-passivated silicon junction optimized for unidirectional surge clamping, with thermal resistance RθJC = 10°C/W enabling efficient heat transfer to PCB copper. Its clamping behavior follows the 10/1000µs standard waveform per IEC 61000-4-5 and ANSI/IEEE C62.35, delivering stable VC under repetitive transients when derated above 25°C ambient per Fig.2.
Designed for surface-mount automated placement, the device features matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance. Polarity is marked by cathode band; moisture sensitivity level is J-STD-020 Level 1, eliminating bake requirements prior to reflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 12V/24V/48V systems. |
| VBR min/max | 122 V / 135 V @ IT = 1 mA - Confirmed breakdown threshold range ensures reliable turn-on during overvoltage events without premature conduction. |
| VC @ IPPM | 177 V @ 8.9 A - Clamped voltage during 10/1000µs surge; limits downstream IC stress to <180V in 110V nominal circuits. |
| PPK | 1500 W - Peak pulse power rating at TA = 25°C; supports high-energy transients like ISO 7637-2 Pulse 5a (load dump). |
| IR @ VWM | <1 µA - Ultra-low reverse leakage preserves system efficiency and prevents false triggering in high-impedance sensing paths. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and sealed industrial enclosures without thermal shutdown. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, single-diode configuration with cathode band marking. Case meets UL 94V-0 flammability rating; weight ≈ 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side | Connected to protected line (e.g., battery feed); conducts forward surge current during clamping. |
| Cathode | Output/Load side | Connected to ground or low-impedance return path; defines unidirectional clamping polarity via marked band. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments. |
| ISO 7637-2 compliance | Meets Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (capacitive coupling) waveforms. |
| Fast response time | <1.0 ps rise time from 0 V to VBR min enables clamping before sensitive ICs experience overvoltage damage. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protecting microcontroller I/O lines and CAN transceivers from load dump and jump-start transients on 12V/24V supply rails. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery input and LDO regulator input to limit voltage excursion to ≤177V. Use Value: Prevents latch-up or permanent damage to 3.3V/5V logic ICs during 100V+ surges while maintaining <1µA standby leakage. | Use Scenario: Safeguarding 24V DC digital input circuitry against field-wiring induced surges and electrostatic discharge in factory automation cabinets. IC Role / Device Role / Timing Role: Primary surge suppression device mounted at terminal block entry point, upstream of optocoupler input stage. Use Value: Clamps 1kV/500A transients to <180V within nanoseconds, preserving signal integrity and extending optocoupler lifetime. |
| Telecom DC Power Feeds | Renewable Energy Charge Controller |
Use Scenario: Shielding PoE midspan injectors and remote radio unit (RRU) power inputs from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-line transient suppressor on +48V DC input rail, coordinated with downstream MOV and filter capacitors. Use Value: Absorbs up to 1500W peak energy without degradation, ensuring uninterrupted operation during Category 4 surge events. | Use Scenario: Protecting solar charge controller MOSFET gate drivers and MCU power rails from inductive kickback during PV array switching. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; SMCJ110AH serves as unidirectional clamp on battery-side 48V bus. Use Value: Maintains VWM = 110V margin above nominal 48V system, allowing safe operation during MPPT voltage spikes up to 100V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110AH (Bourns) | Same VWM (110V), lower PPK (600W), SMB package (smaller footprint, higher RθJA = 75°C/W) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a load dump | Select SMCJ110AH when >1000W surge handling and automotive-grade thermal performance are required. |
| 1.5KE110A (ON Semiconductor) | Same VWM (110V), through-hole DO-201 package, PPK = 1500W, but slower response (>1ns) and no AEC-Q101 qualification | Not suitable for automated SMT assembly or under-hood automotive use due to leaded construction and qualification gap | Choose SMCJ110AH for SMT production, AEC-Q101 compliance, and sub-nanosecond response in space-constrained designs. |
Compared with SMBJ110AH and 1.5KE110A, the SMCJ110AH uniquely combines 1500W SMT capability, AEC-Q101 qualification, and <1.0ps response in DO-214AB - making it the only option among the three qualified for high-reliability automotive power rail protection requiring zero layout change from legacy SMC footprints.
Availability
SMCJ110AH is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and telecom DC power systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SMCJ110AH 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in high-reliability protection devices and power management components.
The SMCJ series was developed specifically for automotive and industrial transient suppression, emphasizing AEC-Q101 qualification, ISO 7637-2 compliance, and robust thermal performance in surface-mount packages.
FAQ
What is the clamping voltage of SMCJ110AH under a 10/1000µs surge?
The SMCJ110AH has a maximum clamping voltage (VC) of 177 V when subjected to an 8.9 A peak pulse current with a 10/1000µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components see no more than 177 V during standardized surge events, critical for protecting 110V-rated or lower-voltage circuitry.
Is SMCJ110AH suitable for bidirectional transient protection?
No, SMCJ110AH is a unidirectional TVS diode intended for DC line-to-ground clamping only. For bidirectional protection, Taiwan Semiconductor offers the SMCJ110CAH variant with CH or CAH suffix; the "H" suffix in SMCJ110AH explicitly denotes unidirectional configuration with cathode band marking.
Does SMCJ110AH require pre-reflow baking?
No, SMCJ110AH has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it is not moisture-sensitive and can be stored indefinitely at ambient conditions without baking prior to reflow soldering - simplifying manufacturing logistics and reducing process risk.
What is the maximum steady-state power dissipation of SMCJ110AH?
The SMCJ110AH has a steady-state power dissipation (PD) rating of 5 W at TA = 25°C. This value applies only to continuous DC or low-frequency reverse bias conditions - not to transient events - and must be thermally managed using adequate PCB copper area to maintain TJ ≤ 150°C.
How does SMCJ110AH compare to SMCJ110H in terms of breakdown voltage tolerance?
The SMCJ110AH has a tighter VBR range of 122–135 V (min/max) versus SMCJ110H's 122–149 V, achieved by tighter binning during production. This narrower spread improves design margin predictability in precision clamping applications where consistent turn-on behavior is critical across production lots.
SMCJ110AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- SMCJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 177V
- Current - Peak Pulse (10/1000µs):
- 8.9A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ110AH FAQ
1.How can I place an order for SMCJ110AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ110AH 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 SMCJ110AH reliable?
The price and inventory of SMCJ110AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ110AH is usually 5 days.
3.What payment methods are accepted for SMCJ110AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ110AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ110AH?
SMCJ110AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ110AH 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 SMCJ110AH?
For technical support, including SMCJ110AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ110AH requirements.
6.How does Aetrix verify that SMCJ110AH is sourced from the original manufacturer or authorized distributors?
All SMCJ110AH 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 SMCJ110AH meets industry standards.
7.What is the process for return or replacement of SMCJ110AH?
All SMCJ110AH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ110AH, 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 SMCJ110AH part is unused and in its original packaging.
Return procedure for SMCJ110AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ110AH 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…
