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Taiwan Semiconductor Corporation SMBJ60CH
- Part No.:
- SMBJ60CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ60CH.pdf
- Description:
- 600W, 74.1V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:4,193
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Product details
Overview
SMBJ60CH 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), 66.7–81.5 V breakdown voltage (VBR), 107 V maximum clamping voltage (VC) at 5.8 A peak pulse current, and 600 W peak pulse power rating with sub-1 ps response time.
For engineers reviewing the SMBJ60CH datasheet, SMBJ60CH pinout, SMBJ60CH application, or SMBJ60CH equivalent, key selection criteria include bidirectional clamping capability, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, AEC-Q101 qualification, low leakage (<1 µA at 60 V), and DO-214AA thermal performance (RθJA = 55 °C/W).
Technical Context
The SMBJ60CH is a unidirectional/bidirectional TVS diode configured as a single die in a glass-passivated junction structure. Its fast response (<1 ps) and low clamping ratio (VC/VBR ≈ 1.32) enable effective suppression of fast-rising transients such as EFT and load dump spikes without compromising system reliability.
It operates across –55 °C to +150 °C junction temperature range and meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 requirements. The device supports automated placement and is RoHS-compliant and halogen-free per IEC 61249-2-21.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 66.7 / 81.5 V @ 1 mA - Ensures reliable turn-on above normal rail voltage with margin |
| VC @ IPP | 107 V @ 5.8 A (10/1000 µs) - Limits downstream voltage stress during surge events |
| PPK | 600 W - Withstands high-energy transients per ISO 7637-2 without failure |
| ID @ VWM | <1 µA - Negligible leakage current preserves low-power system integrity |
| TJ max | +150 °C - Supports under-hood automotive and industrial ambient conditions |
| RθJA | 55 °C/W - Enables thermal design with standard PCB copper area in SMB footprint |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode band marking; matte tin-plated leads, UL 94V-0 molding compound, 0.090 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (marked end) | Transient return path (bidirectional) | Provides symmetrical clamping in both polarities; no polarity dependency in circuit layout |
| Cathode (band end) | Transient return path (bidirectional) | Same functional role as anode; device operates identically regardless of orientation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal cycling |
| ISO 7637-2 compliant | Meets Pulse 1 (inductive load dump), Pulse 2a/2b (battery disconnection), and Pulse 3a/3b (switching transients) |
| Sub-1 ps response time | Clamps before sensitive ICs experience overvoltage damage during ESD or EFT events |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking or special handling |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed at power entry point to shunt surge energy to ground. Use Value: Clamps to 107 V during 5.8 A 10/1000 µs surge, limiting voltage seen by downstream DC-DC converters and microcontrollers. | Use Scenario: Safeguarding analog sensor inputs (e.g., pressure, temperature) in factory automation systems. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) TVS placed across differential signal lines to absorb EFT bursts. Use Value: Prevents latch-up or parametric shift in precision op-amps and ADCs during 4 kV EFT testing per IEC 61000-4-4. |
| LED Driver Surge Suppression | RS-485 Transceiver Port Protection |
Use Scenario: Shielding constant-current LED drivers from inductive switching spikes in streetlight control systems. IC Role / Device Role / Timing Role: TVS connected between output rail and ground to clamp flyback voltage from relay or MOSFET switching. Use Value: Absorbs 600 W peak pulses without degradation, maintaining driver lifetime under repeated 100 V/100 ns transients. | Use Scenario: Hardening RS-485 communication ports against lightning-induced surges in building management networks. IC Role / Device Role / Timing Role: Bidirectional TVS placed on A/B differential lines to symmetrically clamp common-mode and differential-mode surges. Use Value: Maintains signal integrity by clamping to ≤107 V while preserving <1 µA leakage that avoids bias current errors in termination resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ60CA | Bidirectional, same VWM/VBR/VC specs; identical DO-214AA package and AEC-Q101 qualification | No functional difference; alternate marking code from same Taiwan Semiconductor production lot | Select SMBJ60CA only if required by BOM revision or distributor stock availability |
| SMCJ60CA | Higher PPK (1500 W), larger DO-214AB (SMC) package, RθJA = 35 °C/W, same VWM/VBR/VC | Used where higher surge margin or improved thermal dissipation is needed; requires PCB footprint change | Choose SMCJ60CA when system-level surge testing exceeds 600 W or ambient temperature exceeds 105 °C |
Compared with SMBJ60CH, SMBJ60CA offers identical electrical and qualification specs with no design impact, while SMCJ60CA provides 2.5× higher surge capacity at the cost of larger footprint and different thermal behavior-requiring layout review and thermal validation.
Availability
SMBJ60CH is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and LED driver surge suppression requiring stable component supply and AEC-Q101 traceability.
Supply support for SMBJ60CH 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for automotive and industrial markets.
The SMBJH series was developed specifically for AEC-Q101-compliant transient suppression in harsh-environment 12 V/24 V systems, emphasizing robustness, low leakage, and repeatable clamping performance across temperature and life cycles.
FAQ
What is the clamping voltage of SMBJ60CH under a 10/1000 µs surge?
The SMBJ60CH has a maximum clamping voltage (VC) of 107 V when subjected to a 5.8 A peak pulse current with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components see limited overvoltage during standardized surge events. The SMBJ60CH maintains this clamping performance across its full operating temperature range.
Is SMBJ60CH unidirectional or bidirectional?
SMBJ60CH is a bidirectional TVS diode, indicated by the "CH" suffix per Taiwan Semiconductor's ordering nomenclature. It provides symmetrical clamping in both polarities, making it suitable for AC-coupled lines or DC rails where reverse polarity transients may occur. Unlike unidirectional variants (e.g., SMBJ60H), the SMBJ60CH does not require orientation-specific placement.
Does SMBJ60CH meet automotive qualification standards?
Yes, SMBJ60CH is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements for automotive transient immunity. It also complies with JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1, confirming suitability for reflow-soldered automotive modules without preconditioning.
What is the maximum leakage current of SMBJ60CH at its working voltage?
The SMBJ60CH exhibits a maximum blocking leakage current (ID) of 1 µA at its 60 V working stand-off voltage (VWM), measured at TA = 25 °C. This ultra-low leakage preserves power efficiency in always-on automotive modules and avoids loading effects on high-impedance sensor bias networks.
Can SMBJ60CH be used in place of SMBJ60CA?
Yes, SMBJ60CH and SMBJ60CA are functionally identical bidirectional TVS diodes from Taiwan Semiconductor with matching VWM, VBR, VC, PPK, and package specifications. They differ only in marking code and internal lot traceability-not electrical or mechanical performance-making them direct alternatives in production and repair contexts.
SMBJ60CH 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:
- 107V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- 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)
SMBJ60CH FAQ
1.How can I place an order for SMBJ60CH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ60CH 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 SMBJ60CH reliable?
The price and inventory of SMBJ60CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ60CH is usually 5 days.
3.What payment methods are accepted for SMBJ60CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ60CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ60CH?
SMBJ60CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ60CH 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 SMBJ60CH?
For technical support, including SMBJ60CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ60CH requirements.
6.How does Aetrix verify that SMBJ60CH is sourced from the original manufacturer or authorized distributors?
All SMBJ60CH 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 SMBJ60CH meets industry standards.
7.What is the process for return or replacement of SMBJ60CH?
All SMBJ60CH units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ60CH, 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 SMBJ60CH part is unused and in its original packaging.
Return procedure for SMBJ60CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ60CH Tags
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