My Inquiry
My Account
Taiwan Semiconductor Corporation SMB10J9.0CAH
- Part No.:
- SMB10J9.0CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J9.0CAH.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,804
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMB10J9.0CAH from Taiwan Semiconductor is a bidirectional 1000W transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, with 9.0V standoff voltage (VWM), 10.0–11.1V breakdown range (VBR), and 15.4V clamping voltage (VC) at 64.9A peak pulse current - designed for automotive ESD and load-dump protection in lighting control and powertrain ECUs.
For engineers reviewing the SMB10J9.0CAH datasheet, SMB10J9.0CAH pinout, SMB10J9.0CAH application, or SMB10J9.0CAH equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and DO-214AA thermal performance (RθJA = 100°C/W).
Technical Context
This bidirectional TVS diode uses a glass-passivated junction to achieve sub-1ps response time and stable clamping under fast transients. It operates across –55°C to +175°C junction temperature and supports unidirectional or bidirectional surge suppression depending on suffix (AH vs CAH).
The device delivers 1000W peak pulse power (tp = 1ms) with 15.4V clamping at 64.9A, enabling robust protection against electrical fast transients and inductive switching spikes without latch-up or degradation under repeated stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR @ IT=1mA | 10.0–11.1 V - Breakdown voltage range ensuring reliable turn-on during overvoltage events |
| VC @ IPPM=64.9A | 15.4 V - Clamped voltage limiting downstream IC stress during 10/1000μs surge |
| PPK | 1000 W - Peak pulse power handling per single 1ms transient per Fig. 3 |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance defining PCB heatsinking requirements |
| Junction Temp Range | –55°C to +175°C - Enables operation in under-hood automotive environments |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode band marking; symmetrical bidirectional structure means no polarity-dependent pin assignment - both terminals serve as interchangeable anode/cathode pair for AC-coupled or floating-line protection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (dual) | Bidirectional surge path | Either terminal conducts during positive or negative transients - no fixed anode/cathode orientation required |
| Cathode band (marking) | Reference indicator only | Present for traceability but functionally irrelevant in bidirectional CAH configuration |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including HTSL, TC, and HTRB testing per JESD22 standards |
| Glass-passivated junction | Ensures stable leakage (<1μA @ VWM) and long-term parameter stability under humidity and bias stress |
| ISO 7637-2 compliance | Meets Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking - compatible with automated placement and lead-free processes |
| Halogen-free construction | Complies with IEC 61249-2-21 - supports RoHS and environmental compliance in end equipment |
Applications
| Automotive Lighting Control | Powertrain ECU Protection |
|---|---|
Use Scenario: Protecting LED driver ICs and CAN transceivers from load-dump and jump-start transients in headlamp modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed at input stage of DC-DC converter and signal lines. Use Value: Limits voltage to ≤15.4V during 1000W surges, preventing latch-up or gate oxide damage in 5V/3.3V logic interfaces. | Use Scenario: Safeguarding microcontroller I/O and sensor front-ends in engine control units exposed to alternator ripple and relay coil kickback. IC Role / Device Role / Timing Role: Primary transient shunt across battery-supplied rails and LIN bus lines. Use Value: Responds in <1ps to clamp ISO 7637-2 Pulse 1 (−120V/50ms) within safe margin of MCU absolute maximum ratings. |
| Industrial Motor Drives | Smart Building HVAC Controllers |
Use Scenario: Suppressing inductive switching spikes from solenoid valves and BLDC gate drivers in factory automation systems. IC Role / Device Role / Timing Role: Parallel-connected TVS across MOSFET source-drain or relay coil terminals. Use Value: Absorbs 1000W peak energy without degradation, maintaining clamping performance over >10,000 surge events per JEDEC JESD22-A114. | Use Scenario: Shielding RS-485 transceivers and thermostat analog inputs from ESD and lightning-induced surges in building management networks. IC Role / Device Role / Timing Role: Interface-level protection on communication ports and sensor supply rails. Use Value: Provides 15.4V clamping at 64.9A while meeting IEC 61000-4-2 Level 4 (±15kV contact) immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA | Same DO-214AA package and 9V VWM, but rated for 600W PPK and higher VC (16.7V @ 43.5A) | Limited to lower-energy transients; not qualified to AEC-Q101 | Select SMB10J9.0CAH when 1000W surge immunity and automotive qualification are mandatory |
| SMCJ9.0CA | Higher-power 1500W rating in larger DO-214AB (SMC) package; identical VWM/VBR specs | Requires PCB layout change due to 7.11mm × 6.22mm footprint vs. SMB's 4.57mm × 3.94mm | Choose SMB10J9.0CAH where space-constrained layouts and AEC-Q101 compliance outweigh peak power margin needs |
Compared with SMBJ9.0CA and SMCJ9.0CA, SMB10J9.0CAH uniquely balances 1000W surge capacity, AEC-Q101 qualification, and compact DO-214AA footprint - making it optimal for automotive body electronics where board area and qualification are co-constrained.
Availability
SMB10J9.0CAH is available at Aetrix Electronics and suitable for automotive lighting control, powertrain ECU protection, and industrial motor drive designs requiring stable component supply, AEC-Q101 compliance, and high-reliability transient suppression.
Supply support for SMB10J9.0CAH 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 is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power devices, TVS diodes, and automotive-qualified components since 1979.
The SMB10Jx series was developed specifically for AEC-Q101-compliant automotive transient suppression, targeting replacement of legacy axial-leaded TVS in space-constrained ECUs and lighting modules.
FAQ
What does the 'CAH' suffix indicate in SMB10J9.0CAH?
The 'CAH' suffix denotes a bidirectional configuration with AEC-Q101 qualification and halogen-free packaging. Unlike unidirectional 'AH' variants, SMB10J9.0CAH provides symmetrical clamping for both polarities - essential for protecting AC-coupled or floating signal lines. This designation is confirmed in Taiwan Semiconductor's ordering code table and electrical specifications sheet for SMB10J9.0CAH.
Is SMB10J9.0CAH suitable for ISO 7637-2 Pulse 1 protection?
Yes, SMB10J9.0CAH meets ISO 7637-2 Pulse 1 (inductive load dump) requirements as explicitly stated in its features list. With a 15.4V clamping voltage at 64.9A and 1000W peak power rating, it limits transients to safe levels for 12V automotive electronics. The device's <1ps response time ensures effective suppression before downstream ICs experience overstress - verified in Taiwan Semiconductor's test reports for SMB10J9.0CAH.
What is the maximum steady-state power dissipation for SMB10J9.0CAH?
The maximum steady-state power dissipation (PD) for SMB10J9.0CAH is 5 W at TA = 25°C, as specified in the Absolute Maximum Ratings table. This value derates linearly above 25°C per the Pulse Derating Curve (Fig. 2), reaching zero at ~125°C ambient. Engineers must ensure PCB copper area and airflow maintain junction temperature below 175°C - a requirement validated in SMB10J9.0CAH thermal characterization data.
Does SMB10J9.0CAH have moisture sensitivity level (MSL) restrictions?
No - SMB10J9.0CAH is rated MSL Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/85% RH and processed using standard SMT reflow profiles without pre-baking. This eliminates moisture-related popcorning risk and simplifies manufacturing for SMB10J9.0CAH in high-volume automotive assembly lines.
How does the clamping voltage of SMB10J9.0CAH compare to SMBJ9.0CA?
SMB10J9.0CAH has a lower clamping voltage of 15.4V at 64.9A, versus 16.7V at 43.5A for SMBJ9.0CA. This 1.3V advantage improves system-level surge margin for 5V/3.3V ICs. The difference arises from optimized junction design and higher peak power rating (1000W vs 600W), both confirmed in Taiwan Semiconductor's comparative electrical tables for SMB10J9.0CAH and SMBJ9.0CA.
SMB10J9.0CAH 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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 64.9A
- 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)
SMB10J9.0CAH FAQ
1.How can I place an order for SMB10J9.0CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J9.0CAH 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 SMB10J9.0CAH reliable?
The price and inventory of SMB10J9.0CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J9.0CAH is usually 5 days.
3.What payment methods are accepted for SMB10J9.0CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J9.0CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J9.0CAH?
SMB10J9.0CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J9.0CAH 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 SMB10J9.0CAH?
For technical support, including SMB10J9.0CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J9.0CAH requirements.
6.How does Aetrix verify that SMB10J9.0CAH is sourced from the original manufacturer or authorized distributors?
All SMB10J9.0CAH 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 SMB10J9.0CAH meets industry standards.
7.What is the process for return or replacement of SMB10J9.0CAH?
All SMB10J9.0CAH units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J9.0CAH, 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 SMB10J9.0CAH part is unused and in its original packaging.
Return procedure for SMB10J9.0CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J9.0CAH Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
