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Taiwan Semiconductor Corporation SMCJ36CH
- Part No.:
- SMCJ36CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36CH.pdf
- Description:
- 1500W, 44.5V, 10%, BIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:5,291
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Product details
Overview
SMCJ36CH from Taiwan Semiconductor is a bidirectional 1500W surface-mount transient voltage suppressor (TVS) in DO-214AB (SMC) package, with 36V working stand-off voltage (VWM), 40–48.9V breakdown voltage (VBR), and 64.3V maximum clamping voltage (VC) at 24A peak pulse current. It provides ESD and surge protection for automotive power rails and industrial I/O interfaces.
For engineers reviewing the SMCJ36CH datasheet, SMCJ36CH pinout, SMCJ36CH application, or SMCJ36CH equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, sub-1ps response time, and <1µA reverse leakage above 10V.
Technical Context
The SMCJ36CH uses a glass-passivated silicon junction optimized for fast transient suppression in harsh environments. Its bidirectional configuration enables symmetrical clamping in both polarities without external circuitry, supporting robust protection of differential buses and AC-coupled signal lines.
Thermal performance is defined by RθJA = 55°C/W and RθJC = 10°C/W, enabling reliable operation up to +150°C junction temperature. It meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 40 / 48.9 V @ 1 mA - Breakdown threshold range defining turn-on consistency across production lot |
| VC @ IPPM | 64.3 V @ 24 A - Clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPK | 1500 W - Peak pulse power handling per single 1 ms transient per Fig.5 waveform |
| IR @ VWM | <1 µA - Negligible leakage current ensures minimal standby power loss and signal integrity |
| TJ max | +150 °C - Enables deployment in under-hood automotive and high-temperature industrial enclosures |
| Response time | <1.0 ps - Sub-picosecond junction response ensures clamping before transient energy couples into ICs |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, bidirectional, cathode band not applicable (symmetrical terminals).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bidirectional) | Transient current path | Both terminals function identically; no polarity marking required for SMCJ36CH |
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 compliant | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) waveforms |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal and humidity stress |
| Fast response time <1 ps | Clamps before transient edge propagates beyond PCB trace length, protecting sensitive inputs |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU Directive 2011/65/EU for environmentally constrained applications |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed at connector entry point to clamp ±100V spikes within 1 ps. Use Value: Limits clamping voltage to 64.3V, ensuring downstream DC-DC converters and microcontrollers remain within absolute maximum ratings. |
Use Scenario: Safeguarding 24V digital input modules in factory automation systems exposed to relay coil flyback and ESD. IC Role / Device Role / Timing Role: Primary surge shunt on field-side signal lines, absorbing 1500W pulses without degradation. Use Value: Maintains <1 µA leakage at 36V, preventing false triggering in high-impedance sensing circuits. |
| Telecom Line Interface | Renewable Energy Inverter Control |
Use Scenario: Transient suppression on RS-485/RS-422 bus lines in outdoor base stations subject to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping device across differential pair, referenced to local ground plane. Use Value: Symmetrical VBR (40–48.9V) ensures balanced clamping regardless of surge polarity, preserving common-mode rejection. |
Use Scenario: Protecting gate drive signals and sensor feedback paths in solar string inverters operating in high-UV, high-temp environments. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated control side, supplementing primary MOV-based AC input protection. Use Value: +150°C TJ rating and J-STD-020 Level 1 MSL enable reflow compatibility and long-term reliability in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36CA | Lower PPK (400W), smaller SMA package, higher VC (72.7V @ 5.5A) | Not suitable for ISO 7637-2 Pulse 1 or high-energy load dump events | Select when space-constrained and surge energy is limited to <400W |
| 1.5KE36CA | Through-hole TO-218, same 1500W rating but slower response (~1 ns), higher IR (5 µA) | Requires PCB real estate and manual assembly; less suited for automated SMT lines | Select only for legacy through-hole designs where rework is acceptable |
Compared with SMAJ36CA and 1.5KE36CA, the SMCJ36CH delivers superior surge robustness in compact SMT form factor, with verified AEC-Q101 qualification and sub-1ps response-critical for modern automotive and industrial electronics requiring zero-layout compromise on protection performance.
Availability
SMCJ36CH is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC I/O protection, telecom line interface, and renewable energy inverter control requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMCJ36CH 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 designed specifically for high-reliability transient suppression in automotive and industrial environments, emphasizing AEC-Q101 compliance, ISO 7637-2 immunity, and robust thermal performance in surface-mount packages.
FAQ
What does the "CH" suffix indicate in SMCJ36CH?
The "CH" suffix in SMCJ36CH denotes a bidirectional configuration with glass-passivated junction and AEC-Q101 qualification. Unlike unidirectional variants (e.g., SMCJ36H), the SMCJ36CH provides symmetrical clamping in both polarities-essential for protecting AC-coupled or differential signal paths without polarity concerns.
Is SMCJ36CH compatible with lead-free reflow soldering processes?
Yes, SMCJ36CH is fully compatible with standard lead-free reflow profiles. Its DO-214AB (SMC) package meets J-STD-020 Level 1 moisture sensitivity and supports peak temperatures up to 260°C. The matte tin-plated leads comply with J-STD-002 for solderability, and the molding compound is UL 94V-0 rated.
How does SMCJ36CH meet ISO 7637-2 requirements?
SMCJ36CH is validated to withstand all five ISO 7637-2 test pulses: Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling). Its 1500W peak power rating, low clamping voltage (64.3V), and sub-1ps response ensure energy diversion occurs before system-level damage thresholds are exceeded.
What is the maximum clamping voltage of SMCJ36CH and under what conditions is it specified?
The maximum clamping voltage of SMCJ36CH is 64.3V, measured at 24A peak pulse current (IPPM) using the standardized 10/1000 µs double-exponential waveform per Fig.5 in the datasheet. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events.
Can SMCJ36CH be used in place of unidirectional SMCJ36H in existing designs?
No-SMCJ36CH is bidirectional while SMCJ36H is unidirectional; substituting one for the other requires verifying circuit topology. SMCJ36CH lacks a cathode band and clamps symmetrically, making it unsuitable for DC-biased applications where polarity-specific conduction is required. Always confirm layout and biasing before replacement.
SMCJ36CH 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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 64.3V
- Current - Peak Pulse (10/1000µs):
- 24A
- 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)
SMCJ36CH FAQ
1.How can I place an order for SMCJ36CH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36CH 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 SMCJ36CH reliable?
The price and inventory of SMCJ36CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ36CH is usually 5 days.
3.What payment methods are accepted for SMCJ36CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36CH?
SMCJ36CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36CH 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 SMCJ36CH?
For technical support, including SMCJ36CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36CH requirements.
6.How does Aetrix verify that SMCJ36CH is sourced from the original manufacturer or authorized distributors?
All SMCJ36CH 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 SMCJ36CH meets industry standards.
7.What is the process for return or replacement of SMCJ36CH?
All SMCJ36CH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36CH, 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 SMCJ36CH part is unused and in its original packaging.
Return procedure for SMCJ36CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ36CH Tags
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