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Taiwan Semiconductor Corporation 1.5SMC36CAH
- Part No.:
- 1.5SMC36CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC36CAH.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,042
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Product details
Overview
1.5SMC36CAH from Taiwan Semiconductor is a bidirectional 1500W surface-mount transient voltage suppressor (TVS) diode with a 36V working stand-off voltage (VWM = 30.8 V), 34.2–37.8 V breakdown voltage (VBR), and 49.9 V maximum clamping voltage (VC) at 31 A peak impulse current - designed for ESD and surge protection in automotive power line and industrial I/O interfaces.
For engineers reviewing the 1.5SMC36CAH datasheet, 1.5SMC36CAH pinout, 1.5SMC36CAH application, or 1.5SMC36CAH equivalent, this device delivers AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, sub-1 ps response time, <1 µA leakage above 10 V, and DO-214AB (SMC) package compatibility for automated SMT assembly.
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities, enabling robust protection of AC-coupled or floating signal lines without polarity dependency. Its glass-passivated junction ensures stable clamping performance across -55°C to +150°C operating temperature range and supports fast transient suppression per IEC 61000-4-2 (ESD) and IEC 61000-4-5 (surge).
The device features a low thermal resistance (RθJC = 15°C/W) and high surge capability (IFSM = 200 A for unidirectional variants; bidirectional operation maintains full 1500 W peak pulse power rating). It meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30.8 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (min/max) | 34.2 V / 37.8 V - Breakdown occurs within this band at 1 mA test current; ensures predictable turn-on under transients |
| VC @ IPPM | 49.9 V at 31 A - Clamped voltage during 10/1000 µs surge; limits downstream IC stress to safe levels |
| PPK | 1500 W - Peak pulse power handling per 1 ms waveform; enables protection against severe load-dump or lightning-induced surges |
| IR @ VWM | <1 µA - Ultra-low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits |
| TJ max | +150 °C - Junction temperature limit supporting under-hood automotive and industrial environments |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 7.11 mm x 6.22 mm footprint and matte tin-plated leads |
Pinout & Package
Package: DO-214AB (SMC), bi-directional configuration with cathode band omitted (symmetrical terminals); case meets UL 94V-0 flammability rating and JEDEC-compliant solderability per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge conduction path | Either terminal serves as input/output; no polarity sensitivity - simplifies PCB layout for AC or floating nodes |
| Case (cathode band absent) | Thermal and mechanical interface | Exposed metal slug provides low RθJC path to PCB copper; requires adequate thermal pad for power dissipation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress - suitable for engine control and body electronics |
| ISO 7637-2 compliant | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) without degradation |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under humidity and thermal aging - critical for 15+ year industrial deployments |
| Sub-1 ps response time | Clamps ESD events faster than most silicon-based protectors, minimizing voltage overshoot into protected ICs |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive - supports green manufacturing and end-of-life recycling requirements |
Applications
| Automotive Power Line Protection | Industrial Digital I/O Protection |
|---|---|
Use Scenario: 12 V battery line in vehicle infotainment head unit exposed to load dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed upstream of DC-DC converter input to limit surge voltage to ≤50 V. Use Value: Prevents damage to buck controller ICs during ISO 7637-2 Pulse 5a (load dump), leveraging 1500 W peak power rating and AEC-Q101 qualification. |
Use Scenario: RS-485 transceiver port on factory PLC module subject to ESD and inductive switching noise. IC Role / Device Role / Timing Role: Differential-line protector between bus pins and transceiver, absorbing ±15 kV contact ESD per IEC 61000-4-2. Use Value: Sub-1 ps response ensures clamping before transceiver input stages are overstressed; symmetrical VBR enables single-device protection of both A/B lines. |
| Telecom DSL Line Interface | Consumer Appliance Motor Control Board |
Use Scenario: POTS/DSL splitter front-end connected to outside plant wiring vulnerable to lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge limiter on tip/ring pair before hybrid transformer and line driver IC. Use Value: 49.9 V clamping voltage protects low-voltage line drivers while maintaining signal fidelity up to 2.2 MHz; DO-214AB allows compact dual-line layout. |
Use Scenario: Microcontroller GPIO driving relay coil in smart washing machine control board. IC Role / Device Role / Timing Role: Flyback energy absorber across relay coil, suppressing inductive kickback exceeding 300 V. Use Value: 1500 W peak rating handles repetitive 200 A surge pulses; bidirectional capability eliminates need for series diode in AC-coil applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA | 600 W peak power rating (vs. 1500 W); same VWM (30.8 V) and VC (58.1 V), but lower IPPM (10.3 A) | Limited to lower-energy transients (e.g., IEC 61000-4-2 only); not rated for ISO 7637-2 Pulse 5a | Select when space constraints require SMB package and surge threat level is limited to ESD/lightning-induced ring wave |
| 1.5KE36CA | Through-hole DO-201 package; identical electrical specs (VWM = 30.8 V, VC = 49.9 V, PPK = 1500 W), but slower thermal response and no AEC-Q101 qualification | Suitable for non-automotive industrial use where manual assembly or higher mounting height is acceptable | Choose for legacy through-hole designs or cost-sensitive non-automotive applications requiring same clamping performance |
Compared with SMBJ36CA and 1.5KE36CA, the 1.5SMC36CAH uniquely combines AEC-Q101 qualification, surface-mount DO-214AB packaging, and full 1500 W ISO 7637-2 compliance - making it the only option qualified for automotive power-line surge protection in automated SMT production.
Availability
1.5SMC36CAH is available at Aetrix Electronics and suitable for automotive power distribution modules, industrial PLC I/O cards, telecom line interface units, and consumer appliance motor controllers requiring stable component supply and long-term lifecycle support.
Supply support for 1.5SMC36CAH 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 automotive-qualified components.
The 1.5SMCxxCAH series was developed to meet stringent AEC-Q101 and ISO 7637-2 requirements for next-generation automotive and industrial surge protection - emphasizing reliability, automated assembly compatibility, and symmetrical bidirectional clamping.
FAQ
What does the 'CAH' suffix indicate in 1.5SMC36CAH?
The 'CAH' suffix denotes a bidirectional configuration with AEC-Q101 qualification and halogen-free construction. Unlike unidirectional 'H' variants, 1.5SMC36CAH provides symmetrical clamping in both polarities - essential for protecting AC-coupled or floating signal paths without polarity concerns. This designation is confirmed in TSC's official ordering information and electrical specifications table.
Is 1.5SMC36CAH compatible with lead-free reflow soldering processes?
Yes, 1.5SMC36CAH supports lead-free reflow per J-STD-020 Level 1 moisture sensitivity and JEDEC-standard thermal profiles. Its matte tin-plated leads are solderable per J-STD-002, and the DO-214AB package withstands peak temperatures up to 260°C. The device's glass passivation ensures intermetallic stability during repeated thermal cycling.
How does the clamping voltage of 1.5SMC36CAH compare to its unidirectional counterpart 1.5SMC36CH?
1.5SMC36CAH has a maximum clamping voltage of 49.9 V at 31 A, while the unidirectional 1.5SMC36CH clamps at 52.0 V under identical test conditions. The 2.1 V reduction reflects optimized bidirectional junction design - critical for protecting low-voltage ICs where even small overvoltage margins impact system reliability.
Can 1.5SMC36CAH be used in place of 1.5SMC36A in an existing design?
No - 1.5SMC36A is a legacy part without AEC-Q101 qualification or ISO 7637-2 validation. While both share similar VWM and VC, only 1.5SMC36CAH carries the 'CAH' suffix confirming automotive-grade testing, halogen-free materials, and bidirectional symmetry. Substitution requires revalidation per AEC-Q101 stress tests and ISO 7637-2 pulse immunity.
What is the thermal derating behavior of 1.5SMC36CAH above 25°C ambient?
1.5SMC36CAH derates linearly above 25°C per Figure 2 in the datasheet: peak pulse power drops to 75% at 75°C and 50% at 125°C. Its RθJA = 50°C/W and RθJC = 15°C/W enable effective thermal management when mounted on ≥1 cm² copper pour - ensuring sustained 1500 W capability during short-duration transients even in hot under-hood environments.
1.5SMC36CAH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 31A
- 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)
1.5SMC36CAH FAQ
1.How can I place an order for 1.5SMC36CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC36CAH 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 1.5SMC36CAH reliable?
The price and inventory of 1.5SMC36CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC36CAH is usually 5 days.
3.What payment methods are accepted for 1.5SMC36CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC36CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC36CAH?
1.5SMC36CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC36CAH 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 1.5SMC36CAH?
For technical support, including 1.5SMC36CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC36CAH requirements.
6.How does Aetrix verify that 1.5SMC36CAH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC36CAH 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 1.5SMC36CAH meets industry standards.
7.What is the process for return or replacement of 1.5SMC36CAH?
All 1.5SMC36CAH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC36CAH, 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 1.5SMC36CAH part is unused and in its original packaging.
Return procedure for 1.5SMC36CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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