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Taiwan Semiconductor Corporation SMCJ9.0CAH
- Part No.:
- SMCJ9.0CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ9.0CAH.pdf
- Description:
- 1500W, 10.6V, 5%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:9,507
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Product details
Overview
SMCJ9.0CAH from Taiwan Semiconductor is a bidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 9.0V working stand-off voltage, 10.0–11.1V breakdown voltage at 1mA, and 15.4V maximum clamping voltage at 10A peak pulse current. It protects automotive and industrial power rails against ESD, lightning-induced surges, and load-switch transients.
For engineers reviewing the SMCJ9.0CAH datasheet, SMCJ9.0CAH pinout, SMCJ9.0CAH application, or SMCJ9.0CAH equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, ISO 7637-2 compliance, thermal resistance data, and real-world design context for surge immunity validation.
Technical Context
The SMCJ9.0CAH is a bipolar TVS diode designed for symmetrical transient suppression in both directions, meeting ISO 7637-2 Pulse 1/2a/2b/3a/3b waveforms. Its glass-passivated junction ensures stable breakdown and low leakage (<1μA @ 9V), while fast response time (<1.0ps) enables effective clamping of nanosecond-scale ESD events.
Thermally, it features RθJA = 55°C/W and RθJC = 10°C/W, supporting sustained operation up to TJ = 150°C. The device is rated for 200A non-repetitive forward surge (8.3ms half-sine) and exhibits VF = 3.5V @ 100A - consistent with SMCJ5.0H–SMCJ90H unidirectional variants per datasheet Note 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 10.0 / 11.1 V @ IT = 1 mA - Confirmed breakdown range defining turn-on threshold under standardized test |
| VC @ IPPM | 15.4 V @ 10 A - Clamped voltage during 10/1000μs surge, limiting downstream stress |
| PPK | 1500 W - Peak pulse power handling capability per 1ms waveform (Fig.5) |
| IR @ VWM | <1 μA - Reverse leakage at working voltage, critical for low-power standby circuits |
| TJ max | +150 °C - Maximum junction temperature enabling under-hood automotive deployment |
| RθJA | 55 °C/W - Junction-to-ambient thermal resistance used to calculate board-level power derating |
Pinout & Package
DO-214AB (SMC) surface-mount package: molded epoxy case rated UL 94V-0, matte tin-plated leads, polarity indicated by cathode band (not applicable for bidirectional SMCJ9.0CAH - no polarity marking required).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Transient current path | Both terminals conduct identically during positive/negative surges; no DC polarity dependency |
| Case (exposed metal pad) | Thermal interface | Provides primary heat dissipation path to PCB copper; requires adequate thermal pad area |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| ISO 7637-2 compliant | Withstands defined vehicle electrical transients (Pulse 1, 2a, 2b, 3a, 3b) without degradation |
| Glass-passivated junction | Ensures long-term stability of VBR and low leakage across temperature and humidity |
| Fast response time <1.0 ps | Clamps ESD events before sensitive ICs experience overvoltage damage |
| Moisture sensitivity level 1 | No bake requirement prior to reflow; compatible with standard SMT assembly processes |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12V battery-fed ECUs from load dump and alternator switching transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed at input stage to clamp ±100V spikes within 15.4V envelope. Use Value: Enables compliance with ISO 7637-2 Pulse 5a/b without external series impedance or timing delays. | Use Scenario: Shielding digital input modules from induced surges on 24V field wiring in factory automation. IC Role / Device Role / Timing Role: Standoff protection element absorbing 1500W pulses while maintaining <1μA leakage during normal operation. Use Value: Prevents false triggering and latch-up in microcontroller GPIOs exposed to long cable runs. |
| Telecom DC Power Feeds | Consumer USB-C Power Delivery |
Use Scenario: Safeguarding PoE-powered switches and base stations against lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Primary surge shunt on 48V DC input rail, operating symmetrically across differential lines. Use Value: Maintains signal integrity during surge events due to sub-nanosecond response and minimal capacitance. | Use Scenario: Adding robust overvoltage protection to USB-C CC and VBUS lines in portable chargers. IC Role / Device Role / Timing Role: Low-leakage (≤1μA) bidirectional clamp ensuring no impact on PD negotiation timing. Use Value: Survives repeated ±15kV contact ESD per IEC 61000-4-2 without parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA | 600W rating, SMB package (smaller footprint, higher RθJA = 75°C/W) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a/b | Select when board space is constrained and peak surge energy ≤600W |
| 1.5KE9.1CA | Through-hole TO-218 package, same 1500W rating but slower response (~1ns), higher VC = 15.5V | Not suitable for automated SMT assembly; requires wave solder or hand-soldering | Select only for legacy through-hole designs requiring identical clamping performance |
Compared with SMBJ9.0CA and 1.5KE9.1CA, the SMCJ9.0CAH delivers superior surge robustness in compact SMT form factor, with faster response and lower thermal resistance - making it optimal for next-generation automotive and industrial modules where layout density and transient severity coexist.
Availability
SMCJ9.0CAH is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom infrastructure requiring stable component supply and AEC-Q101-compliant surge protection.
Supply support for SMCJ9.0CAH 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, MOSFETs, and power management devices.
The SMCJ series was developed specifically for high-reliability automotive and industrial transient suppression, emphasizing AEC-Q101 qualification, ISO 7637-2 compliance, and robust thermal performance in surface-mount packages.
FAQ
What does the "CAH" suffix indicate in SMCJ9.0CAH?
The "CAH" suffix denotes a bidirectional configuration (C), AEC-Q101 qualification (A), and high-reliability process (H). Unlike unidirectional "H" variants, SMCJ9.0CAH conducts equally in both polarities - essential for protecting AC-coupled or floating DC lines where surge polarity is unpredictable. This is confirmed in the datasheet's "Devices for bipolar applications" section.
Does SMCJ9.0CAH meet ISO 7637-2 requirements?
Yes, SMCJ9.0CAH explicitly meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test profiles as stated in the FEATURES section. Its 1500W peak power rating, 15.4V clamping voltage at 10A, and sub-1ps response enable reliable suppression of these standardized automotive transients without additional circuitry.
What is the maximum clamping voltage for SMCJ9.0CAH under surge conditions?
The maximum clamping voltage for SMCJ9.0CAH is 15.4 V at 10 A peak pulse current (IPPM) under the 10/1000μs waveform defined in Fig.5. This value is measured per ANSI/IEEE C62.35 and guarantees downstream circuitry remains below safe overvoltage thresholds during transient events.
Is SMCJ9.0CAH RoHS and halogen-free compliant?
Yes, SMCJ9.0CAH is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the FEATURES list. The molding compound meets UL 94V-0 flammability rating, and terminals are matte tin-plated per J-STD-002 - ensuring environmental compliance and solderability in lead-free reflow processes.
What is the thermal resistance profile of SMCJ9.0CAH?
SMCJ9.0CAH has a junction-to-ambient thermal resistance (RθJA) of 55°C/W and junction-to-case resistance (RθJC) of 10°C/W, measured per JEDEC standards. These values allow accurate thermal modeling when mounted on PCBs with appropriate copper pour - critical for sustaining repetitive surge duty cycles in engine-control or power-supply applications.
SMCJ9.0CAH 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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 102A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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:
- DO-214AB (SMC)
SMCJ9.0CAH FAQ
1.How can I place an order for SMCJ9.0CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ9.0CAH 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 SMCJ9.0CAH reliable?
The price and inventory of SMCJ9.0CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ9.0CAH is usually 5 days.
3.What payment methods are accepted for SMCJ9.0CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ9.0CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ9.0CAH?
SMCJ9.0CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ9.0CAH 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 SMCJ9.0CAH?
For technical support, including SMCJ9.0CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ9.0CAH requirements.
6.How does Aetrix verify that SMCJ9.0CAH is sourced from the original manufacturer or authorized distributors?
All SMCJ9.0CAH 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 SMCJ9.0CAH meets industry standards.
7.What is the process for return or replacement of SMCJ9.0CAH?
All SMCJ9.0CAH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ9.0CAH, 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 SMCJ9.0CAH part is unused and in its original packaging.
Return procedure for SMCJ9.0CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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