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Taiwan Semiconductor Corporation SMBJ130A
- Part No.:
- SMBJ130A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ130A.pdf
- Description:
- TVS DIODE 130VWM 209VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,595
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Product details
Overview
SMBJ130A from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 130 V working stand-off voltage (VWM), 144–159 V breakdown voltage (VBR) at 1 mA, 209 V maximum clamping voltage (VC) at 3.0 A peak pulse current (IPP), and 600 W peak pulse power rating with 10/1000 µs waveform. It is used in automotive power supply inputs to protect CAN transceivers and microcontrollers against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the SMBJ130A datasheet, SMBJ130A pinout, SMBJ130A application, or SMBJ130A equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, leakage current at operating voltage, thermal derating above 25°C, and compliance with automotive transient immunity standards.
Technical Context
The SMBJ130A operates as a unidirectional avalanche diode, conducting only during reverse overvoltage events while presenting high impedance under normal bias. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at 130 V).
It delivers sub-nanosecond response time (typically <1.0 ps), enabling effective suppression of fast EFT/burst and lightning-induced surges. Thermal performance is defined by RθJA = 55 °C/W and RθJC = 10 °C/W, supporting operation up to TJ = 150 °C with appropriate PCB copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 130 V - Maximum continuous reverse operating voltage before significant conduction begins; sets upper limit for system DC rail voltage. |
| VBR min/max | 144 V / 159 V @ 1 mA - Confirmed breakdown range ensures reliable triggering without premature clamping. |
| VC @ IPP | 209 V @ 3.0 A - Clamping voltage defines worst-case stress on downstream ICs during 10/1000 µs surge. |
| PPK | 600 W - Peak pulse power handling per single 10/1000 µs event; determines survivability against ISO 7637-2 Pulse 2b (50 V, 1 Ω source). |
| ID @ VWM | <1 µA - Ultra-low reverse leakage preserves battery life and avoids false triggers in high-impedance sensing circuits. |
| TJ max | +150 °C - Enables use in under-hood automotive environments with validated thermal design. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, single-diode 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 conduction terminal | Connected to system ground or lower-potential node; forms return path during clamping. |
| Cathode | Reverse-biased input terminal | Connected to protected line (e.g., 12 V rail); avalanche conduction occurs when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | 209 V VC at 3.0 A IPP ensures protected ICs (e.g., CAN transceivers rated to 40 V abs max) experience no overstress during 10/1000 µs surges. |
| Response speed | <1.0 ps enables suppression of nanosecond-scale ESD and EFT events before sensitive logic latches. |
| Leakage control | <1 µA ID at 130 V prevents measurable power loss in always-on 12 V systems (e.g., vehicle body controllers). |
| Automated assembly support | DO-214AA (SMB) package and J-STD-020 Level 1 moisture sensitivity allow standard SMT reflow without baking. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and local LDO/regulator input to clamp surges before they reach voltage regulators and MCU power pins. Use Value: Limits transient voltage to ≤209 V, preventing regulator latch-up and ensuring uninterrupted MCU operation during engine cranking or jump-start events. |
Use Scenario: 4–20 mA current loop transmitters interfacing with PLC analog inputs in factory automation. IC Role / Device Role / Timing Role: TVS mounted across loop terminals to absorb induced surges from nearby motor drives or relay switching. Use Value: Maintains loop integrity by clamping transients within 1.0 ps, avoiding output saturation or DAC damage in precision transmitter ICs. |
| Lighting System ESD Protection | DC Motor Drive Back-EMF Suppression |
Use Scenario: LED driver modules in automotive headlamps subjected to human-body-model (HBM) ESD during service or assembly. IC Role / Device Role / Timing Role: SMBJ130A placed across input capacitors to shunt ESD energy away from buck controller ICs and gate drivers. Use Value: Sub-1 ps response captures >90% of 8 kV HBM discharge before voltage rises beyond 209 V, preserving PWM controller reliability. |
Use Scenario: H-bridge motor drivers controlling 24 V DC fans or pumps in HVAC systems. IC Role / Device Role / Timing Role: TVS connected across motor terminals to clamp inductive kickback during MOSFET turn-off. Use Value: Absorbs 600 W peak energy from back-EMF spikes, preventing gate oxide rupture in half-bridge drivers and reducing radiated emissions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ130CA | Bidirectional variant; symmetric VBR (144–159 V) in both polarities; same VWM and VC ratings. | Required where AC-coupled signals or bidirectional data lines (e.g., RS-485) need symmetrical clamping. | Select SMBJ130CA only if circuit requires protection against both positive and negative transients; SMBJ130A is optimal for DC rails with defined polarity. |
| SAC130A | Same VWM (130 V), but lower PPK (400 W); VC = 219 V @ 2.3 A; smaller DO-214AC (SMC) package. | Lower surge capacity suits less severe environments (e.g., consumer-grade power supplies); larger footprint required for SMBJ130A's 600 W rating. | Choose SMBJ130A when ISO 7637-2 compliance or 600 W pulse handling is mandatory; SAC130A fits space-constrained designs with reduced surge risk. |
Compared with SMBJ130CA and SAC130A, the SMBJ130A provides optimal balance of unidirectional clamping precision, 600 W surge capability, and DO-214AA manufacturability-making it preferred for automotive DC power rail protection where polarity is fixed and transient severity is high.
Availability
SMBJ130A is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, lighting control modules, and DC motor drive systems requiring stable component supply and full ISO 7637-2 compliance.
Supply support for SMBJ130A 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 management devices since 1979.
The SMBJ series was developed specifically for robust, high-reliability transient suppression in automotive and industrial environments, emphasizing low clamping ratio, tight VBR tolerance, and AEC-Q101 readiness.
FAQ
What is the maximum clamping voltage of SMBJ130A under standard test conditions?
The SMBJ130A has a maximum clamping voltage (VC) of 209 V when subjected to a 10/1000 µs surge current pulse of 3.0 A. This value is measured per ANSI/IEEE C62.35 and defines the peak voltage seen by downstream components during worst-case transient events, making it critical for verifying margin against IC absolute maximum ratings.
Is SMBJ130A suitable for ISO 7637-2 compliant automotive designs?
Yes, SMBJ130A meets ISO 7637-2 requirements for Pulse 1, 2a, 2b, 3a, and 3b. Its 600 W peak pulse power rating, 209 V clamping voltage, and sub-1 ps response enable reliable suppression of load-dump and inductive-switching transients commonly encountered in 12 V vehicle electrical systems.
What is the polarity configuration of SMBJ130A, and how is it identified on the device?
SMBJ130A is a unidirectional TVS diode with cathode indicated by a band on the DO-214AA (SMB) package body. The cathode connects to the protected line (e.g., 12 V rail), and the anode connects to ground-ensuring conduction only during reverse overvoltage events, which matches typical DC power rail protection topology.
How does SMBJ130A's leakage current compare to other TVS diodes in the SMBJ series?
SMBJ130A exhibits ≤1 µA blocking leakage current at its 130 V working stand-off voltage, consistent with all SMBJ-A variants rated ≥10 V. This ultra-low leakage is achieved via glass-passivated junction technology and supports long-term reliability in battery-backed or always-on systems without excessive standby power drain.
Can SMBJ130A be used in place of SMBJ130 without modification?
No-SMBJ130A and SMBJ130 differ in breakdown voltage tolerance: SMBJ130A has tighter VBR (144–159 V) versus SMBJ130 (144–176 V), resulting in lower clamping voltage (209 V vs. 231 V) and higher surge current rating (3.0 A vs. 2.7 A). Substitution requires verification that the lower VC provides sufficient margin and that the tighter VBR aligns with system overvoltage thresholds.
SMBJ130A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- SMBJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 130V
- Voltage - Breakdown (Min):
- 144V
- Voltage - Clamping (Max) @ Ipp:
- 209V
- Current - Peak Pulse (10/1000µs):
- 2.9A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ130A FAQ
1.How can I place an order for SMBJ130A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ130A 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 SMBJ130A reliable?
The price and inventory of SMBJ130A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ130A is usually 5 days.
3.What payment methods are accepted for SMBJ130A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ130A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ130A?
SMBJ130A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ130A 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 SMBJ130A?
For technical support, including SMBJ130A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ130A requirements.
6.How does Aetrix verify that SMBJ130A is sourced from the original manufacturer or authorized distributors?
All SMBJ130A 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 SMBJ130A meets industry standards.
7.What is the process for return or replacement of SMBJ130A?
All SMBJ130A units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ130A, 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 SMBJ130A part is unused and in its original packaging.
Return procedure for SMBJ130A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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