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Taiwan Semiconductor Corporation SMB10J36CAH
- Part No.:
- SMB10J36CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J36CAH.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,672
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Product details
Overview
SMB10J36CAH from Taiwan Semiconductor is a bidirectional 1000W transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, with 36V stand-off voltage (VWM), 40.0–44.2V breakdown voltage (VBR), and 58.1V clamping voltage (VC) at 17.2A peak pulse current - designed for automotive lighting and ECU power rail protection against ISO 7637-2 pulses.
For engineers reviewing the SMB10J36CAH datasheet, SMB10J36CAH pinout, SMB10J36CAH application, or SMB10J36CAH equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 175°C junction rating, low-profile SMB package compatibility with automated SMT placement, and compliance with electrical fast transient (EFT) immunity requirements.
Technical Context
This bidirectional TVS diode uses a glass-passivated silicon junction to deliver sub-1ps response time and robust clamping under repetitive transients. It operates across –55°C to +175°C and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b waveforms without derating up to 125°C ambient.
Thermal performance is defined by RθJL = 20°C/W and RθJA = 100°C/W, enabling reliable 1000W peak pulse dissipation (tp = 1ms) in compact PCB layouts. Its unidirectional counterpart SMB10J36AH shares identical package and thermal specs but lacks reverse-polarity protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT=1mA | 40.0–44.2 V - Verified breakdown threshold ensuring predictable turn-on during transients |
| VC @ IPPM=17.2A | 58.1 V - Clamped voltage limiting downstream IC stress during 10/1000μs surge events |
| PPK | 1000 W - Peak pulse power handling per single 1ms transient, compliant with ISO 7637-2 |
| Junction Temp Range | –55°C to +175°C - Enables deployment in under-hood automotive environments |
| Package | DO-214AA (SMB) - Low-profile surface-mount outline compatible with J-STD-002 soldering standards |
Pinout & Package
DO-214AA (SMB) package: cathode-banded monolithic bidirectional device; two-terminal construction with no internal polarity distinction - terminals are symmetric and interchangeable for AC-coupled or floating-rail protection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Transient conduction path | Both terminals function identically as clamping nodes - no fixed anode/cathode assignment required |
| Cathode band marking | Manufacturing orientation indicator | Visible band denotes terminal 1 per JEDEC DO-214AA standard; irrelevant for bidirectional operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term leakage stability under humidity and thermal stress |
| ISO 7637-2 compliance | Guarantees suppression of standardized vehicle-level transients (Pulse 1, 2a, 2b, 3a, 3b) without failure |
| Moisture sensitivity level 1 | Enables direct placement from dry pack without baking - supports high-volume SMT manufacturing |
Applications
| Automotive Lighting Systems | Engine Control Unit (ECU) Power Rails |
|---|---|
Use Scenario: Protecting LED driver ICs and CAN transceivers from load-dump and inductive switching spikes in headlamp modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across 12V supply and ground near point-of-load. Use Value: Limits transient voltage to ≤58.1V, preventing latch-up or gate oxide damage in 3.3V/5V logic interfaces. | Use Scenario: Safeguarding microcontroller power inputs against ISO 7637-2 Pulse 1 (inductive flyback) and Pulse 3b (capacitive coupling). IC Role / Device Role / Timing Role: Primary overvoltage clamp on main 5V or 3.3V regulator output bus. Use Value: Maintains system uptime by absorbing 1000W surges without degradation, preserving MCU reset integrity. |
| Infotainment Display Backlight | Body Control Module (BCM) Inputs |
Use Scenario: Shielding TFT-LCD backlight drivers from ESD events during assembly and field operation. IC Role / Device Role / Timing Role: Secondary protection stage after connector-level filtering, located adjacent to DC-DC converter output. Use Value: Achieves <1ps response to meet IEC 61000-4-2 Level 4 (15kV air/8kV contact) immunity requirements. | Use Scenario: Protecting wake-up inputs and LIN bus pins from cable discharge events and battery reversal transients. IC Role / Device Role / Timing Role: Input-side TVS on sensor interface lines with common-mode rejection capability. Use Value: Provides symmetrical clamping (±58.1V) to prevent false wake-up or LIN frame corruption during EFT bursts. |
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 | Same VWM/VC, but rated at 600W PPK; non-AEC-Q101; RθJA = 110°C/W | Limited to industrial/commercial use; insufficient for automotive pulse testing | Select when cost sensitivity outweighs automotive qualification and 1000W surge margin |
| 1.5KE36CA | Through-hole TO-218 package; same 36V VWM; 1500W PPK; slower response (~1.5ps) | Requires PCB real estate and manual assembly; unsuitable for high-density SMT designs | Choose only if legacy through-hole layout exists and higher peak power is critical |
Compared with SMBJ36CA and 1.5KE36CA, SMB10J36CAH uniquely combines AEC-Q101 qualification, 1000W surge capacity, and DO-214AA footprint - making it the only option meeting full ISO 7637-2 compliance in space-constrained automotive SMT applications.
Availability
SMB10J36CAH is available at Aetrix Electronics and suitable for automotive lighting systems, engine control unit (ECU) power rails, and body control module (BCM) protection requiring stable component supply across extended temperature ranges and high-reliability production cycles.
Supply support for SMB10J36CAH 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 power devices, TVS diodes, and rectifiers for automotive and industrial markets.
The SMB10JxxCAH series was developed specifically to address AEC-Q101-compliant transient suppression needs in next-generation automotive electronics, emphasizing low-profile packaging, high-temperature operation, and ISO 7637-2 waveform resilience.
FAQ
What does the 'CAH' suffix indicate in SMB10J36CAH?
The 'CAH' suffix identifies SMB10J36CAH as a bidirectional TVS diode in DO-214AA (SMB) package with AEC-Q101 qualification and green molding compound. 'C' denotes bidirectional configuration, 'A' indicates version A2102, and 'H' specifies halogen-free compliance per IEC 61249-2-21. This distinguishes it from unidirectional variants like SMB10J36AH.
Is SMB10J36CAH suitable for ISO 7637-2 Pulse 5a (load dump) protection?
No - SMB10J36CAH is rated for ISO 7637-2 Pulses 1, 2a, 2b, 3a, and 3b only. Pulse 5a (load dump) requires higher energy handling (≥400J) and typically demands specialized load-dump suppressors or TVS arrays. SMB10J36CAH's 1000W/1ms rating does not cover the extended duration and energy of Pulse 5a.
What is the maximum allowable mounting density for SMB10J36CAH on a 1oz copper PCB?
With RθJA = 100°C/W, SMB10J36CAH requires ≥25 mm² of 1oz copper pad area per terminal for optimal thermal relief. Adjacent components should maintain ≥1.5mm clearance to avoid localized hot spots. For high-duty-cycle surge environments, thermal vias under each pad (minimum 4×0.3mm) are recommended to reduce effective RθJA.
Does SMB10J36CAH require derating above 25°C ambient temperature?
Yes - SMB10J36CAH's peak pulse power must be linearly derated above 25°C per Figure 2 in the datasheet. At 125°C ambient, its 1000W rating reduces to approximately 500W. Steady-state power dissipation remains limited to 5W regardless of temperature, and thermal design must ensure TJ ≤ 175°C under worst-case surge repetition.
Can SMB10J36CAH replace SMBJ36CA in an existing design without layout changes?
Yes - SMB10J36CAH shares identical DO-214AA (SMB) package dimensions, pad layout, and terminal polarity marking with SMBJ36CA. However, due to its higher 1000W rating and AEC-Q101 qualification, it may exhibit slightly different clamping dynamics under repeated surges; validation per ISO 7637-2 is required before drop-in replacement in automotive applications.
SMB10J36CAH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- SMB10J
- 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:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 17.2A
- Power - Peak Pulse:
- 1000W (1kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J36CAH FAQ
1.How can I place an order for SMB10J36CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J36CAH 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 SMB10J36CAH reliable?
The price and inventory of SMB10J36CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J36CAH is usually 5 days.
3.What payment methods are accepted for SMB10J36CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J36CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J36CAH?
SMB10J36CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J36CAH 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 SMB10J36CAH?
For technical support, including SMB10J36CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J36CAH requirements.
6.How does Aetrix verify that SMB10J36CAH is sourced from the original manufacturer or authorized distributors?
All SMB10J36CAH 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 SMB10J36CAH meets industry standards.
7.What is the process for return or replacement of SMB10J36CAH?
All SMB10J36CAH units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J36CAH, 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 SMB10J36CAH part is unused and in its original packaging.
Return procedure for SMB10J36CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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