My Inquiry
My Account
Taiwan Semiconductor Corporation SMCJ9.0AH
- Part No.:
- SMCJ9.0AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ9.0AH.pdf
- Description:
- 1500W, 10.6V, UNIDIRECTIONAL, TV
- Quantity:
- Payment:
- Shipping:
Inventory:3,294
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ9.0AH from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode with a 9.0V working stand-off voltage, 10V minimum breakdown voltage, and 15.4V maximum clamping voltage at 10A peak pulse current. It features AEC-Q101 qualification, glass passivated junction, and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump and ESD protection in power rails.
For engineers reviewing the SMCJ9.0AH datasheet, SMCJ9.0AH pinout, SMCJ9.0AH application, or SMCJ9.0AH equivalent, this device is selected for robust overvoltage protection in 12V automotive subsystems, industrial DC power inputs, and telecom interface circuits where fast response (<1.0 ps), low leakage (<1 µA @ 9V), and DO-214AB package compatibility are critical.
Technical Context
The SMCJ9.0AH operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 10V minimum breakdown threshold (tested at 1 mA), clamping transients to ≤15.4V at 10A. Its glass-passivated junction ensures stable VBR tolerance and long-term reliability under repetitive surge stress.
Thermally, it delivers RθJA = 55°C/W and RθJC = 10°C/W, enabling sustained operation up to TJ = 150°C. It meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity - suitable for lead-free reflow without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before conduction begins; sets safe margin below 12V nominal rail. |
| VBR min/max | 10.0 / 11.1 V @ 1 mA - Tight 11% VBR window ensures predictable turn-on across temperature and lot variation. |
| VC @ IPPM | 15.4 V @ 10 A - Clamping voltage defines worst-case voltage seen by protected IC during 10/1000µs surge. |
| PPK | 1500 W - Peak pulse power rating per 10/1000µs waveform; supports high-energy transients like ISO 7637-2 Pulse 5a. |
| IR @ VWM | <1 µA - Ultra-low reverse leakage preserves battery life and avoids false triggering in low-power standby modes. |
| TJ max | +150 °C - Junction temperature limit enables use in under-hood automotive environments without derating. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Case meets UL 94V-0; matte tin-plated leads comply with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / ground reference | Connected to system ground; forms low-impedance shunt path during reverse overvoltage events. |
| Cathode | Protected line input / positive rail connection | Connected to 12V supply or signal line; reverse-biased during normal operation; conducts when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - required for engine control, body electronics, and ADAS modules. |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) without degradation. |
| Glass passivated junction | Eliminates surface contamination sensitivity and improves long-term VBR stability under humidity and bias stress. |
| Fast response time | <1.0 ps rise time from 0 V to VBR - clamps ESD and lightning-induced spikes before downstream ICs experience overstress. |
| Moisture sensitivity Level 1 | No floor-life limitation or baking required before reflow - simplifies SMT line logistics and reduces handling cost. |
Applications
| Automotive Body Control Module (BCM) | Industrial 24V PLC Input Protection |
|---|---|
Use Scenario: Protecting microcontroller I/O and CAN transceiver power rails from load-dump transients during alternator regulation faults. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12V supply and ground, clamping surges to ≤15.4V within picoseconds. Use Value: Prevents latch-up or permanent damage to 5V/3.3V logic supplies derived from the protected 12V rail. |
Use Scenario: Safeguarding digital input terminals of programmable logic controllers against induced surges from relay coil switching and motor drive noise. IC Role / Device Role / Timing Role: Standoff-rated TVS on 24V field-side inputs, absorbing 1500W pulses while maintaining <1 µA leakage at 24V. Use Value: Enables direct connection to industrial sensors without external series impedance or filtering, reducing BOM count and board space. |
| Telecom Ethernet PHY Power Rail | Consumer Appliance Main DC Bus |
Use Scenario: Shielding Gigabit Ethernet PHY chipsets from ESD events on PoE-powered 48V auxiliary rails. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated 48V-to-3.3V DC-DC converter input, activated only during >10V transients. Use Value: Complements primary front-end protection by limiting residual clamping voltage to levels compatible with wide-input buck regulators. |
Use Scenario: Overvoltage suppression on the 12V DC bus supplying motor drivers and display controllers in smart washing machines. IC Role / Device Role / Timing Role: Unidirectional clamp on main SMPS output, rated for repeated 10A/10ms surges from brushed motor commutation. Use Value: Extends mean time between failures (MTBF) by eliminating cumulative oxide degradation in downstream MOSFET gate drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A | Lower PPK = 400W; same VWM/VBR; DO-214AC (SMA) package - smaller footprint but higher RθJA (85°C/W). | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); unsuitable for ISO 7637-2 Pulse 5a. | Select SMAJ9.0A only for space-constrained consumer designs with verified sub-400W surge profiles. |
| SMCJ9.0A | Same package and ratings, but non-AEC-Q101 qualified; VBR min = 10.0V, max = 12.2V (wider tolerance vs. SMCJ9.0AH's 11.1V max). | Acceptable for industrial/commercial use where automotive qualification is not mandated; higher VBR spread increases risk of premature conduction. | Choose SMCJ9.0A for cost-sensitive non-automotive applications where full AEC-Q101 testing is unnecessary. |
Compared with SMAJ9.0A and SMCJ9.0A, the SMCJ9.0AH provides guaranteed automotive qualification, tighter VBR tolerance, and 1500W surge capacity in the DO-214AB package - making it the sole choice for 12V automotive power rail protection requiring ISO 7637-2 compliance.
Availability
SMCJ9.0AH is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, and telecom power systems requiring stable component supply, AEC-Q101 assurance, and high-energy transient immunity.
Supply support for SMCJ9.0AH 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, and power MOSFETs since 1979.
The SMCJ9.0AH belongs to TSC's AEC-Q101-qualified SMCJ(A)H family, engineered specifically for high-reliability automotive and industrial transient suppression where clamping precision, surge endurance, and thermal robustness are mission-critical.
FAQ
What is the polarity configuration of the SMCJ9.0AH?
The SMCJ9.0AH is a unidirectional TVS diode, configured with anode and cathode terminals. The cathode is marked by a band on the DO-214AB package body. It conducts only during reverse overvoltage conditions - i.e., when cathode voltage exceeds anode voltage by ≥VBR. This makes SMCJ9.0AH suitable for protecting positive supply rails referenced to ground, unlike bidirectional variants which suppress both polarities.
Does the SMCJ9.0AH meet automotive qualification standards?
Yes, the SMCJ9.0AH is AEC-Q101 qualified and tested per the full stress test schedule, including HTGB, H3TRB, TC, and surge endurance. It also complies with ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b waveforms - confirming its suitability for 12V automotive power networks such as body control modules and infotainment power supplies.
What is the maximum clamping voltage of the SMCJ9.0AH at rated surge current?
The SMCJ9.0AH has a maximum clamping voltage (VC) of 15.4 V at 10 A peak pulse current (IPPM), measured using the standard 10/1000 µs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during a full-rated transient event and is critical for ensuring downstream ICs remain within absolute maximum ratings.
How does the SMCJ9.0AH differ from the SMCJ9.0H variant?
The SMCJ9.0AH offers tighter breakdown voltage tolerance (10.0–11.1 V) compared to SMCJ9.0H (10.0–12.2 V), resulting in more consistent clamping behavior across production lots. Both share identical package, power rating, and AEC-Q101 qualification, but SMCJ9.0AH's narrower VBR window reduces design margin uncertainty in safety-critical applications where precise turn-on voltage is essential.
Is the SMCJ9.0AH compatible with lead-free reflow soldering processes?
Yes, the SMCJ9.0AH uses matte tin-plated leads compliant with J-STD-002 and is rated for lead-free reflow per J-STD-020 Level 1 - meaning it has unlimited floor life and requires no pre-baking prior to assembly. Its DO-214AB package withstands peak temperatures up to 260°C for 10 seconds, fully supporting standard Pb-free SMT profiles.
SMCJ9.0AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- 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)
SMCJ9.0AH FAQ
1.How can I place an order for SMCJ9.0AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ9.0AH 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 SMCJ9.0AH reliable?
The price and inventory of SMCJ9.0AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ9.0AH is usually 5 days.
3.What payment methods are accepted for SMCJ9.0AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ9.0AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ9.0AH?
SMCJ9.0AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ9.0AH 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 SMCJ9.0AH?
For technical support, including SMCJ9.0AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ9.0AH requirements.
6.How does Aetrix verify that SMCJ9.0AH is sourced from the original manufacturer or authorized distributors?
All SMCJ9.0AH 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 SMCJ9.0AH meets industry standards.
7.What is the process for return or replacement of SMCJ9.0AH?
All SMCJ9.0AH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ9.0AH, 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 SMCJ9.0AH part is unused and in its original packaging.
Return procedure for SMCJ9.0AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ9.0AH 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…
