My Inquiry
My Account
Taiwan Semiconductor Corporation SMCJ100CH
- Part No.:
- SMCJ100CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ100CH.pdf
- Description:
- 1500W, 123.5V, 10%, BIDIRECTIONA
- Quantity:
- Payment:
- Shipping:
Inventory:4,723
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ100CH from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 100V working stand-off voltage (VWM), 111–136V breakdown voltage (VBR), and 179V maximum clamping voltage (VC) at 8.8A peak pulse current - designed to protect automotive power rails and industrial I/O interfaces against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the SMCJ100CH datasheet, SMCJ100CH pinout, SMCJ100CH application, or SMCJ100CH equivalent, key selection criteria include clamping performance under 10/1000μs surge, AEC-Q101 qualification for automotive use, bidirectional capability via CH suffix, and thermal resistance (RθJC = 10°C/W) for high-reliability PCB layouts.
Technical Context
The SMCJ100CH uses a glass-passivated silicon junction optimized for sub-nanosecond response (<1.0ps rise time from 0V to VBR min), enabling effective suppression of fast ESD and load-switching transients. Its unidirectional configuration provides low forward voltage (VF = 5.0V @ 100A) and reverse leakage <1μA above 10V.
Thermally, it supports continuous operation up to TJ = 150°C with RθJA = 55°C/W and RθJC = 10°C/W, and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum DC or RMS voltage the device blocks continuously without conduction |
| VBR min/max | 111 V / 136 V @ 1 mA - Confirmed breakdown threshold range defining turn-on consistency |
| VC @ IPPM | 179 V @ 8.8 A - Clamped voltage during 10/1000μs surge, limiting downstream stress |
| PPK | 1500 W - Peak pulse power handling per single 1ms transient, derated above 25°C |
| IR @ VWM | <1 μA - Minimal leakage at operating voltage, preserving signal integrity and low-power standby |
| TJ max | +150 °C - Maximum junction temperature enabling use in under-hood automotive environments |
| RθJC | 10 °C/W - Low junction-to-case thermal resistance supporting efficient heatsinking through PCB copper |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode band marking; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected line in unidirectional clamp | Low-VF path (5.0 V @ 100 A) enables robust surge conduction without excessive heating |
| Cathode | Current exit point in forward bias; tied to ground or lower-potential rail | Cathode band marking ensures correct orientation during automated placement and prevents reverse misconnection |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| ISO 7637-2 compliance | Guaranteed suppression of Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) |
| Glass passivated junction | Enhanced stability and long-term leakage performance vs. epoxy-passivated alternatives |
| Fast response time | <1.0 ps from 0 V to VBR min ensures clamping activation before sensitive ICs experience overvoltage damage |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive for environmentally constrained applications |
Applications
| Automotive Power Rail Protection | Industrial PLC Digital I/O |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs from load-dump transients (ISO 7637-2 Pulse 5a/b) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges before they reach LDOs or microcontrollers. Use Value: 179V clamping at 8.8A limits voltage seen by downstream 36V-rated regulators, preventing latch-up or burnout. | Use Scenario: Shielding 24V digital input channels in programmable logic controllers from field-wiring induced transients. IC Role / Device Role / Timing Role: Bidirectional protection (via CH suffix) across differential inputs to absorb both polarity surges from relay coil flyback or cable ESD. Use Value: Sub-ns response captures fast edge-induced spikes before FPGA or ASIC I/O cells exceed absolute maximum ratings. |
| Telecom Line Interface | Motor Drive Control Board |
Use Scenario: Safeguarding RS-485 transceivers on outdoor telecom cabinets exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Paired unidirectional SMCJ100CH devices on VCC and GND lines to suppress common-mode transients entering via twisted-pair cabling. Use Value: 1500W peak power rating sustains multiple 10/1000μs events without degradation, extending field service life. | Use Scenario: Protecting gate drivers and current-sense amplifiers on 3-phase inverter control boards from IGBT switching noise. IC Role / Device Role / Timing Role: Mounted near power stage connectors to clamp high-frequency ringing (>100 MHz) coupled onto low-voltage control traces. Use Value: 10°C/W junction-to-case resistance allows direct thermal coupling to copper pour, maintaining clamping consistency during repeated surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A | Lower PPK (600W), SMB package (smaller footprint, higher RθJA = 85°C/W) | Suitable only for lower-energy transients; not rated for ISO 7637-2 Pulse 5a/b | Select when board space is constrained and surge energy is limited to IEC 61000-4-5 Level 3 (0.5kV) |
| 1.5KE100A | Through-hole DO-201 package, same VWM/VBR but slower response (~1ns), no AEC-Q101 or ISO 7637-2 validation | Not suitable for automotive or high-reliability industrial deployments requiring traceable qualification | Choose for cost-sensitive prototyping where automated SMT assembly is unavailable |
Compared with SMBJ100A and 1.5KE100A, the SMCJ100CH delivers 2.5× higher surge power handling, automotive-grade qualification, and verified ISO 7637-2 immunity - making it the only option for production automotive body control modules and industrial safety-rated I/O.
Availability
SMCJ100CH is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, and telecom infrastructure requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for SMCJ100CH 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, serving global automotive, industrial, and consumer markets since 1979.
The SMCJ series was developed specifically for high-energy transient suppression in harsh environments, emphasizing AEC-Q101 reliability, ISO 7637-2 compliance, and consistent clamping performance across temperature and lifetime.
FAQ
What does the 'CH' suffix indicate in SMCJ100CH?
The 'CH' suffix denotes a bidirectional configuration - meaning the SMCJ100CH functions identically in both polarities, unlike the unidirectional 'H' variant. This enables symmetric clamping across differential lines or AC-coupled circuits without polarity concerns, while retaining all electrical specs (VWM = 100V, VC = 179V) and AEC-Q101 qualification of the base SMCJ100H family.
Is SMCJ100CH suitable for ISO 7637-2 Pulse 5a (load dump) protection?
No - SMCJ100CH is validated for ISO 7637-2 Pulses 1, 2a, 2b, 3a, and 3b only. Pulse 5a (load dump) requires higher energy handling (up to 1000V, 400ms) beyond the 1500W/1ms rating of SMCJ100CH. For Pulse 5a, a dedicated load-dump suppressor such as TSD1000 or SMAJ100A with higher PPK and longer pulse tolerance is required alongside SMCJ100CH.
What is the forward voltage drop of SMCJ100CH at rated surge current?
The forward voltage (VF) of SMCJ100CH is 5.0 V at 100 A, as specified for all SMCJ100H–SMCJ170H unidirectional devices. This value applies during the positive half-cycle of a surge event and directly impacts power dissipation (P = VF × I) during conduction - critical for thermal design in high-duty-cycle applications.
Does SMCJ100CH require a heatsink for continuous operation at 150°C junction temperature?
No external heatsink is required if PCB layout provides ≥1 cm² of 2-oz copper connected to both terminals, leveraging the SMCJ100CH's RθJC = 10°C/W and RθJA = 55°C/W. At ambient 85°C and full 5W steady-state dissipation (PD), junction temperature reaches ~138°C - within the +150°C limit. Thermal simulation is recommended for dense layouts.
How does SMCJ100CH compare to SMCJ100AH in clamping performance?
SMCJ100CH has a maximum clamping voltage (VC) of 179 V at 8.8 A, while SMCJ100AH clamps at 162 V under identical conditions - a 17 V (9.5%) improvement due to tighter VBR tolerance (111–123 V vs. 111–136 V). This makes SMCJ100AH preferable where downstream components have narrow voltage margins, though both share identical package, qualification, and surge rating.
SMCJ100CH 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 179V
- Current - Peak Pulse (10/1000µs):
- 8.8A
- 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)
SMCJ100CH FAQ
1.How can I place an order for SMCJ100CH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ100CH 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 SMCJ100CH reliable?
The price and inventory of SMCJ100CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ100CH is usually 5 days.
3.What payment methods are accepted for SMCJ100CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ100CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ100CH?
SMCJ100CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ100CH 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 SMCJ100CH?
For technical support, including SMCJ100CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ100CH requirements.
6.How does Aetrix verify that SMCJ100CH is sourced from the original manufacturer or authorized distributors?
All SMCJ100CH 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 SMCJ100CH meets industry standards.
7.What is the process for return or replacement of SMCJ100CH?
All SMCJ100CH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ100CH, 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 SMCJ100CH part is unused and in its original packaging.
Return procedure for SMCJ100CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ100CH 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…
