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Taiwan Semiconductor Corporation SMCJ6.5AH
- Part No.:
- SMCJ6.5AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ6.5AH.pdf
- Description:
- 1500W, 7.6V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,965
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Product details
Overview
SMCJ6.5AH from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 7.22V min / 7.98V max breakdown voltage at 6.5mA test current, 10V working stand-off voltage, and 11.2V clamping voltage at 500A peak impulse current. It protects automotive-grade power rails and industrial I/O interfaces against ESD, load dump, and lightning-induced transients.
For engineers reviewing the SMCJ6.5AH datasheet, SMCJ6.5AH pinout, SMCJ6.5AH application, or SMCJ6.5AH equivalent, key selection criteria include its AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, <1.0ps response time, 1μA max reverse leakage at 10V, and DO-214AB thermal performance (RθJC = 10°C/W).
Technical Context
The SMCJ6.5AH employs a glass-passivated silicon junction optimized for fast transient suppression in unidirectional configurations. Its clamping behavior is characterized by a well-defined VC = 11.2V at IPPM = 500A under 10/1000μs waveform per R.E.A., with junction temperature range of –55°C to +150°C and steady-state power dissipation of 5W.
Designed for automated SMT placement, it meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1. Polarity is marked by cathode band; terminals are matte tin-plated and solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 7.22V / 7.98V @ IT = 6.5mA - defines reliable conduction onset under surge conditions |
| VWM | 10V - maximum continuous reverse voltage before leakage exceeds 6.5μA |
| VC @ IPPM | 11.2V @ 500A - peak clamped voltage limiting downstream circuit stress during 10/1000μs transient |
| PPK | 1500W - single-pulse surge power handling capability at TA = 25°C |
| RθJC | 10°C/W - enables effective heat transfer from junction to case in high-power transient events |
| IR @ VWM | <6.5μA - ensures minimal standby power loss and signal integrity in always-on systems |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Case meets UL 94V-0 flammability rating; weight ≈ 0.210g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected line side; must be routed with low-inductance path to ground reference |
| Cathode | Current exit point during reverse-biased clamping | Connected to system ground; polarity mark on package body identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications requiring zero-failure reliability over lifetime temperature cycling |
| ISO 7637-2 compliant (Pulse 1/2a/2b/3a/3b) | Guarantees robustness against real-world vehicle electrical disturbances including battery disconnect and inductive load switching |
| Clamping voltage ≤11.2V at 500A | Protects 12V nominal systems (e.g., CAN, LIN, sensor supplies) without exceeding IC absolute maximum ratings |
| Glass passivated junction | Ensures stable VBR and low leakage across humidity and thermal stress, critical for long-term field operation |
| Response time <1.0ps | Engages before ESD or fast transients damage sensitive CMOS inputs or analog front-ends |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protecting 12V supply rail and switch inputs against load dump and relay coil flyback in BCM modules. IC Role / Device Role / Timing Role: Unidirectional TVS clamp absorbing up to 1500W surges while maintaining VC ≤11.2V. Use Value: Prevents microcontroller reset or LDO failure during ISO 7637-2 Pulse 5a events without derating system voltage margins. | Use Scenario: Safeguarding 24V digital input channels from field-wiring induced transients in factory automation PLCs. IC Role / Device Role / Timing Role: Standoff protector holding 10V until transient exceeds 7.22V, then clamping within 1ps to limit voltage to 11.2V. Use Value: Enables direct connection to unshielded field wiring without external filtering, reducing BOM count and board space. |
| Telecom Power Supply Front-End | Medical Diagnostic Equipment I/O Port |
Use Scenario: Secondary-side surge protection on 12V bias rails feeding RF front-end amplifiers and clock buffers. IC Role / Device Role / Timing Role: Fast-response TVS suppressing ESD and lightning-induced ring waves per IEC 61000-4-5. Use Value: Maintains signal integrity on timing-critical paths by limiting clamping overshoot to ≤11.2V with sub-nanosecond activation. | Use Scenario: ESD protection on isolated patient-monitoring sensor interface lines operating at 5–12V. IC Role / Device Role / Timing Role: Low-leakage (≤6.5μA) unidirectional suppressor preserving signal fidelity in high-impedance analog acquisition paths. Use Value: Meets IEC 61000-4-2 Level 4 (15kV air/8kV contact) without degrading measurement accuracy or introducing offset drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5A | 600W peak power rating, SMB package (smaller footprint, higher RθJA = 85°C/W) | Lower surge capacity; suitable only for non-automotive, lower-energy transients | Select when board space is constrained and surge energy does not exceed 600W |
| 1.5SMC6.5A | Same 1500W rating and DO-214AB package, but not AEC-Q101 qualified; VC = 11.5V @ 500A | Lacks automotive qualification; acceptable for industrial/commercial use where AEC-Q101 is not mandated | Choose for cost-sensitive industrial designs where automotive reliability is not required |
Compared with SMBJ6.5A and 1.5SMC6.5A, the SMCJ6.5AH delivers AEC-Q101 validation, tighter VBR tolerance (7.22–7.98V vs. typical 7.22–8.5V), and lower clamping voltage (11.2V vs. 11.5V), making it optimal for automotive 12V rail protection where margin and qualification are mandatory.
Availability
SMCJ6.5AH is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom infrastructure requiring stable component supply with full traceability and lifecycle management.
Supply support for SMCJ6.5AH 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers with global distribution and AEC-Q101 process validation.
The SMCJ series was developed specifically for high-reliability transient suppression in automotive and industrial environments, emphasizing robust clamping, fast response, and qualification-compliant packaging.
FAQ
What is the breakdown voltage range for SMCJ6.5AH?
The SMCJ6.5AH has a guaranteed breakdown voltage range of 7.22V minimum to 7.98V maximum at a test current of 6.5mA, measured per ANSI/IEEE C62.35 standards. This tight VBR window ensures consistent turn-on behavior across production lots and supports precise system-level surge margining in 12V automotive applications.
Is SMCJ6.5AH unidirectional or bidirectional?
The SMCJ6.5AH is a unidirectional TVS diode, indicated by the absence of "C" or "CA" suffix and confirmed by its cathode-band marking and forward voltage specification (VF = 3.5V @ 100A). It is designed for DC-biased lines where reverse conduction is not required, unlike bidirectional variants such as SMCJ6.5CAH.
Does SMCJ6.5AH meet automotive qualification standards?
Yes, the SMCJ6.5AH is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements. These qualifications validate its suitability for automotive powertrain, body electronics, and infotainment systems where reliability under harsh electrical environments is mandatory.
What is the maximum clamping voltage of SMCJ6.5AH under surge conditions?
The SMCJ6.5AH clamps to a maximum of 11.2V at 500A peak impulse current under the standardized 10/1000μs waveform. This value is measured per Figure 5 in the datasheet and ensures downstream 12V-rated ICs remain within safe operating limits during transient events.
Can SMCJ6.5AH be used in place of SMCJ6.5H?
Yes, the SMCJ6.5AH replaces SMCJ6.5H with improved parameters: tighter VBR (7.22–7.98V vs. 7.22–8.82V), lower clamping voltage (11.2V vs. 12.3V), and identical DO-214AB package and pinout. No PCB changes are required, and the SMCJ6.5AH offers enhanced surge margin for new designs.
SMCJ6.5AH 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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 140A
- 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)
SMCJ6.5AH FAQ
1.How can I place an order for SMCJ6.5AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ6.5AH 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 SMCJ6.5AH reliable?
The price and inventory of SMCJ6.5AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ6.5AH is usually 5 days.
3.What payment methods are accepted for SMCJ6.5AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ6.5AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ6.5AH?
SMCJ6.5AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ6.5AH 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 SMCJ6.5AH?
For technical support, including SMCJ6.5AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ6.5AH requirements.
6.How does Aetrix verify that SMCJ6.5AH is sourced from the original manufacturer or authorized distributors?
All SMCJ6.5AH 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 SMCJ6.5AH meets industry standards.
7.What is the process for return or replacement of SMCJ6.5AH?
All SMCJ6.5AH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ6.5AH, 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 SMCJ6.5AH part is unused and in its original packaging.
Return procedure for SMCJ6.5AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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