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Taiwan Semiconductor Corporation SMBJ60CAH
- Part No.:
- SMBJ60CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ60CAH.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,137
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Product details
Overview
SMBJ60CAH from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy ESD and surge protection in automotive and industrial power rails. It features a 60 V working stand-off voltage (VWM), 66.7–73.7 V breakdown voltage (VBR), 96.8 V maximum clamping voltage (VC) at 6.5 A peak pulse current, and 600 W peak pulse power rating with sub-1 ps response time.
For engineers reviewing the SMBJ60CAH datasheet, SMBJ60CAH pinout, SMBJ60CAH application, or SMBJ60CAH equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, low leakage (<1 µA at 60 V), and DO-214AA thermal performance (RθJA = 55 °C/W).
Technical Context
The SMBJ60CAH is a glass-passivated, bipolar junction TVS diode optimized for fast transient suppression in 12 V and 24 V automotive subsystems. Its symmetrical I-V characteristics enable identical clamping in both polarities, supporting robust protection against reverse-polarity surges and EFT events without polarity dependency.
It operates within -55 °C to +150 °C junction temperature range, meets JESD201 Class 2 whisker resistance, and delivers stable clamping under 10/1000 µs waveform stress up to 600 W - derated linearly above 25 °C ambient per Fig. 2 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous DC or RMS voltage the device blocks without conduction |
| VBR (min/max) | 66.7 / 73.7 V @ 1 mA - Confirmed breakdown threshold ensures reliable turn-on before system damage |
| VC @ IPP | 96.8 V @ 6.5 A - Clamping voltage limits downstream IC stress during ISO 7637-2 Pulse 3b transients |
| PPK | 600 W - Peak pulse power handling for 10/1000 µs surges, critical for load-dump immunity |
| ID @ VWM | <1 µA - Ultra-low leakage preserves battery life in always-on automotive modules |
| TJ max | +150 °C - Enables placement near hot components (e.g., power MOSFETs, motor drivers) |
| RθJA | 55 °C/W - Thermal resistance supports PCB-level thermal design in confined enclosures |
Pinout & Package
DO-214AA (SMB) surface-mount package with matte tin-plated leads; cathode band omitted due to bidirectional symmetry; polarity not applicable; weight ≈ 0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path | Both terminals function identically - no polarity marking required; connects across protected line and ground |
| Case | Non-electrical mechanical interface | UL 94V-0 molded compound provides flame resistance and mechanical stability during reflow |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications including temperature cycling, HTRB, and mechanical shock |
| ISO 7637-2 compliant | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (EFT) without degradation |
| Sub-1 ps response time | Clamps ESD events before sensitive logic or analog circuitry experiences overvoltage stress |
| Moisture sensitivity level 1 | Zero bake requirement prior to SMT assembly - compatible with standard J-STD-020 reflow profiles |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive - suitable for green manufacturing and export compliance |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects microcontroller GPIOs and CAN transceivers from load-dump spikes and jump-start transients on 12 V supply rail. IC Role / Device Role / Timing Role: Bidirectional clamping TVS placed between VBAT and GND, operating as first-line overvoltage shunt. Use Value: Limits voltage to ≤96.8 V during 600 W surges, preventing latch-up or gate oxide rupture in 3.3 V/5 V logic interfaces. | Use Scenario: Shields 24 V digital input channels from field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Standoff protector across input terminal and common, activated only during >66.7 V transients. Use Value: Maintains <1 µA leakage at 24 V nominal, ensuring accurate voltage threshold detection while surviving 10/1000 µs 1 kV pulses. |
| LED Headlamp Driver Protection | Smart Meter Power Supply Input |
Use Scenario: Safeguards buck controller ICs and MOSFET gates from inductive kickback during PWM dimming of high-power LED arrays. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output stage, clamping reverse EMF from LED string inductance. Use Value: Sub-1 ps response prevents gate-source overvoltage on N-channel MOSFETs rated for only ±20 V absolute maximum. | Use Scenario: Secures AC/DC adapter input stage against lightning-induced surges on utility-connected metering equipment. IC Role / Device Role / Timing Role: Primary surge limiter on rectified DC bus before bulk capacitor and SMPS controller. Use Value: 600 W PPK rating handles 10/1000 µs Line-to-Ground surges up to 1.2 kV without failure or parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ60CA | Same DO-214AC (SMA) package; 600 W PPK; VBR = 66.7–73.7 V; VC = 96.8 V @ 6.5 A; RθJA = 65 °C/W | Slightly higher thermal resistance limits power density in compact layouts; same AEC-Q101 and ISO 7637-2 coverage | Select when SMA footprint is already standardized; verify board thermal relief for equivalent power dissipation |
| ON Semiconductor 1.5SMC60CA | DO-214AB (SMC) package; 1500 W PPK; VBR = 66.7–73.7 V; VC = 96.8 V @ 15.5 A; RθJA = 35 °C/W | Higher surge rating suits harsher environments (e.g., commercial vehicle alternator load dump); larger footprint requires layout change | Choose for systems requiring >1000 W surge margin; confirm PCB space and thermal mass accommodate SMC outline |
Compared with SMAJ60CA and 1.5SMC60CA, SMBJ60CAH offers optimal balance of 600 W surge capability, DO-214AA compactness, and 55 °C/W thermal resistance - ideal for space-constrained automotive ECUs where AEC-Q101 and ISO 7637-2 compliance are mandatory.
Availability
SMBJ60CAH is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, LED lighting drivers, and smart metering systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ60CAH 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 automotive and industrial certifications.
The SMBJH series was developed specifically for AEC-Q101-compliant transient protection in automotive power distribution networks and industrial control inputs - emphasizing reliability under thermal cycling, humidity, and repetitive surge stress.
FAQ
What does the "CAH" suffix indicate in SMBJ60CAH?
The "CAH" suffix denotes a bidirectional configuration with AEC-Q101 qualification and halogen-free construction. Unlike unidirectional variants (e.g., SMBJ60H), SMBJ60CAH provides symmetrical clamping in both polarities - essential for protecting AC-coupled or polarity-agnostic circuits such as CAN bus lines or dual-rail sensors. This is confirmed in the datasheet's "Devices for Bipolar Applications" section.
Is SMBJ60CAH suitable for ISO 7637-2 Pulse 1 (load dump) protection?
Yes, SMBJ60CAH is explicitly rated for ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b. Its 600 W peak pulse power rating and 96.8 V clamping voltage at 6.5 A ensure it limits transient energy below the withstand threshold of downstream 65 V-rated power management ICs. The device's 150 °C max junction temperature and thermal derating curve (Fig. 2) further validate its suitability for under-hood automotive use cases.
How does SMBJ60CAH differ from SMBJ60AH?
SMBJ60AH is unidirectional with cathode marking and forward voltage drop (~3.5 V), whereas SMBJ60CAH is bidirectional with no polarity marking and symmetrical I-V characteristics. SMBJ60CAH clamps equally on positive and negative transients - critical for protecting differential buses or floating references - while SMBJ60AH is intended for DC rail protection where polarity is fixed and forward conduction must be avoided.
What is the maximum clamping voltage of SMBJ60CAH under standard test conditions?
The maximum clamping voltage (VC) of SMBJ60CAH is 96.8 V, measured at 6.5 A peak pulse current using the 10/1000 µs waveform per ANSI/IEEE C62.35. This value is guaranteed across the full operating temperature range (-55 °C to +150 °C) and defines the upper voltage limit imposed on protected circuitry during surge events - directly enabling safe operation of 65 V-rated MOSFETs and regulators.
Does SMBJ60CAH require special PCB layout considerations?
Yes - minimize trace inductance between SMBJ60CAH and protected node by placing it as close as possible to the connector or IC input, using short wide traces and direct ground plane connection. Avoid vias in the main surge path. The DO-214AA package's low RθJA (55 °C/W) assumes adequate copper area (≥100 mm² per pad) for heat spreading; insufficient copper will reduce effective surge rating due to thermal saturation.
SMBJ60CAH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- SMBJH
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 6.5A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ60CAH FAQ
1.How can I place an order for SMBJ60CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ60CAH 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 SMBJ60CAH reliable?
The price and inventory of SMBJ60CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ60CAH is usually 5 days.
3.What payment methods are accepted for SMBJ60CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ60CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ60CAH?
SMBJ60CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ60CAH 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 SMBJ60CAH?
For technical support, including SMBJ60CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ60CAH requirements.
6.How does Aetrix verify that SMBJ60CAH is sourced from the original manufacturer or authorized distributors?
All SMBJ60CAH 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 SMBJ60CAH meets industry standards.
7.What is the process for return or replacement of SMBJ60CAH?
All SMBJ60CAH units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ60CAH, 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 SMBJ60CAH part is unused and in its original packaging.
Return procedure for SMBJ60CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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