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Taiwan Semiconductor Corporation SMCJ100H
- Part No.:
- SMCJ100H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ100H.pdf
- Description:
- 1500W, 123.5V, 10%, UNIDIRECTION
- Quantity:
- Payment:
- Shipping:
Inventory:2,315
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Product details
Overview
SMCJ100H from Taiwan Semiconductor is a unidirectional 1500W surface-mount 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. It delivers AEC-Q101 qualification and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump and ESD protection.
For engineers reviewing the SMCJ100H datasheet, SMCJ100H pinout, SMCJ100H application, or SMCJ100H equivalent, this part is selected for high-energy transient suppression in DC power rails, automotive body control modules, industrial I/O interfaces, and telecom power supplies where fast response (<1.0 ps), low leakage (<1 µA @ 100V), and robust 150°C junction operation are required.
Technical Context
The SMCJ100H operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR range (111–136V @ 1 mA). Its glass-passivated junction ensures stable breakdown and low leakage, while thermal resistance values (RθJA = 55°C/W, RθJC = 10°C/W) support reliable power dissipation under repetitive surge conditions.
It complies with AEC-Q101 stress testing for automotive use and satisfies ISO 7637-2 transient immunity requirements across all five defined pulses. The device exhibits VF = 5.0V @ 100A forward surge - a critical parameter distinguishing it from lower-voltage SMCJ variants (e.g., SMCJ90H and below use VF = 3.5V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 12V/24V/48V systems. |
| VBR min/max | 111 V / 136 V @ 1 mA - Tight breakdown tolerance ensures predictable turn-on during transients without premature conduction. |
| VC @ IPPM | 179 V @ 8.8 A - Clamping voltage limits downstream component stress during 10/1000 µs surge events per REA standard. |
| PPK | 1500 W - Peak pulse power rating determines survivability against high-energy spikes like ISO 7637-2 Pulse 5a (load dump). |
| IR @ VWM | <1 µA - Ultra-low reverse leakage preserves battery life and signal integrity in always-on automotive circuits. |
| VF @ 100A | 5.0 V - Forward voltage under 8.3 ms half-sine surge confirms robust metallization and bond-wire capability for high-current fault paths. |
| TJ max | +150 °C - Enables deployment in under-hood automotive environments and industrial enclosures without derating. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, single-die unidirectional configuration. Cathode indicated by band marking; polarity-critical for correct transient shunting direction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to system ground or low-impedance return path; forms current sink during reverse transient. |
| Cathode | High-side transient input | Connected to protected line (e.g., battery feed); conducts avalanche current to ground when VREV > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for BCM, ADAS sensors, and infotainment power rails. |
| Glass passivated junction | Ensures long-term stability of VBR and IR over time and temperature; eliminates risk of moisture-induced parametric drift. |
| ISO 7637-2 compliance | Guarantees immunity to standardized automotive transients (Pulse 1/2a/2b/3a/3b), enabling drop-in integration into OEM-compliant designs. |
| Fast response time | <1.0 ps rise-to-VBR - faster than most microcontroller I/O protection schemes, minimizing voltage overshoot on sensitive inputs. |
| Moisture sensitivity level 1 | No bake requirement prior to reflow; compatible with standard SMT assembly lines without special handling. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 12V/24V supply lines in BCMs from load-dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of LDOs and microcontrollers to limit rail voltage excursion. Use Value: Withstands 1500W surges and clamps to ≤179V, preventing latch-up or damage to downstream 3.3V/5V logic. |
Use Scenario: Shielding 24V digital input channels in programmable logic controllers from field-induced surges and ESD. IC Role / Device Role / Timing Role: Standoff protector between field wiring and optocoupler input stage. Use Value: 100V VWM provides headroom above nominal 24V, while 1 µA leakage avoids false triggering in high-impedance sensing circuits. |
| Telecom Power Supply Input | Automotive Infotainment Power Rail |
Use Scenario: Safeguarding AC/DC and DC/DC converter inputs in telecom base station power supplies against lightning-induced surges. IC Role / Device Role / Timing Role: First-line transient suppressor on primary DC bus before filtering and regulation stages. Use Value: 179V clamping voltage ensures secondary-stage components (e.g., MOSFETs, controllers) remain within SOA during 10/1000 µs events. |
Use Scenario: Securing 5V/12V power feeds to display modules and audio amplifiers in vehicle infotainment systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between fuse output and DC-DC converter input. Use Value: AEC-Q101 qualification and 150°C TJ rating ensure operational reliability in hot, vibration-prone cabin environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC100 | Same 100V VWM and 1500W PPK, but uses DO-214AA (SMA) package - smaller footprint, higher RθJA (75°C/W), lower IFSM (100A). | Limited to lower-energy transients and non-automotive environments due to lack of AEC-Q101 and ISO 7637-2 validation. | Select SAC100 only for space-constrained consumer or industrial boards where automotive qualification is unnecessary. |
| 1.5SMC100A | Identical electrical specs (VWM=100V, VC=179V, PPK=1500W), same DO-214AB package, but not AEC-Q101 qualified and lacks ISO 7637-2 documentation. | Acceptable for general-purpose industrial or telecom use, but not approved for automotive ECUs or safety-critical subsystems. | Choose 1.5SMC100A for cost-sensitive non-automotive designs where full automotive compliance is not mandated. |
Compared with SAC100 and 1.5SMC100A, the SMCJ100H uniquely combines AEC-Q101 qualification, ISO 7637-2 compliance, and VF = 5.0V @ 100A - making it the only option validated for high-reliability automotive power rail protection requiring both thermal robustness and standardized transient immunity.
Availability
SMCJ100H is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC digital inputs, and telecom power supply inputs requiring stable component supply, traceable sourcing, and lifecycle continuity.
Supply support for SMCJ100H 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 TVS diodes, rectifiers, and power devices since 1979.
The SMCJ series was developed specifically for high-energy transient suppression in automotive and industrial power systems, emphasizing AEC-Q101 reliability, ISO 7637-2 compliance, and robust thermal performance in surface-mount packages.
FAQ
What is the clamping voltage of SMCJ100H and how is it measured?
The SMCJ100H has a maximum clamping voltage (VC) of 179 V, measured at 8.8 A peak pulse current (IPPM) using a 10/1000 µs waveform per REA standard. This value represents the upper voltage limit imposed on the protected circuit during a standardized surge event, ensuring downstream ICs remain within safe operating area. The SMCJ100H achieves this clamping performance while maintaining low leakage and fast response.
Is SMCJ100H unidirectional or bidirectional, and how is polarity marked?
The SMCJ100H is a unidirectional TVS diode, with cathode identified by a band marking on the DO-214AB (SMC) package body. Polarity must be observed during PCB layout: cathode connects to the protected line (e.g., battery rail), anode to ground. Bidirectional variants use CH or CAH suffixes (e.g., SMCJ100CH), which are electrically distinct from the SMCJ100H.
Does SMCJ100H meet automotive qualification standards?
Yes, the SMCJ100H is AEC-Q101 qualified and explicitly validated for ISO 7637-2 Pulse 1/2a/2b/3a/3b transient immunity. These certifications confirm its suitability for automotive electronic control units, body control modules, and infotainment systems exposed to real-world vehicle electrical disturbances, including load dump and inductive switching noise.
What is the forward voltage specification for SMCJ100H and why does it matter?
The SMCJ100H specifies VF = 5.0 V at 100 A forward surge current (IFSM), per the 8.3 ms half-sine waveform. This parameter reflects internal resistance and metallization integrity under extreme fault conditions. Unlike lower-voltage SMCJ variants (e.g., SMCJ90H and below), the SMCJ100H uses 5.0 V to ensure robust conduction during high-current transients - critical for protecting battery-fed systems during sustained overvoltage events.
Can SMCJ100H replace older SMCJ100 or SMCJ100A parts?
The SMCJ100H supersedes earlier SMCJ100 and SMCJ100A versions with tighter VBR tolerance (111–136 V vs. wider historical spreads) and updated AEC-Q101/ISO 7637-2 validation. Electrical and mechanical compatibility is maintained - same DO-214AB package, identical pinout, and fully interchangeable in existing layouts. No PCB changes are required when upgrading to SMCJ100H.
SMCJ100H 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):
- 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)
SMCJ100H FAQ
1.How can I place an order for SMCJ100H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ100H 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 SMCJ100H reliable?
The price and inventory of SMCJ100H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ100H is usually 5 days.
3.What payment methods are accepted for SMCJ100H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ100H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ100H?
SMCJ100H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ100H 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 SMCJ100H?
For technical support, including SMCJ100H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ100H requirements.
6.How does Aetrix verify that SMCJ100H is sourced from the original manufacturer or authorized distributors?
All SMCJ100H 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 SMCJ100H meets industry standards.
7.What is the process for return or replacement of SMCJ100H?
All SMCJ100H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ100H, 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 SMCJ100H part is unused and in its original packaging.
Return procedure for SMCJ100H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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