My Inquiry
My Account
Taiwan Semiconductor Corporation SMBJ13AH
- Part No.:
- SMBJ13AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13AH.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,339
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ13AH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy ESD and surge protection in automotive and industrial power rails. It features a 13V working stand-off voltage (VWM), 14.4–15.9V breakdown voltage (VBR), 21.5V maximum clamping voltage (VC) at 29A peak pulse current, and 600W peak pulse power rating with <1.0ps response time.
For engineers reviewing the SMBJ13AH datasheet, SMBJ13AH pinout, SMBJ13AH application, or SMBJ13AH equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, AEC-Q101 qualification status, unidirectional polarity marking, and DO-214AA (SMB) package compatibility with automated SMT assembly.
Technical Context
The SMBJ13AH operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its specified VBR range (14.4–15.9V @ 1mA). Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1μA @ 13V), while its thermal resistance (RθJA = 55°C/W) supports operation up to +150°C junction temperature.
Designed for automotive-grade reliability, it meets AEC-Q101 stress testing requirements and complies with ISO 7637-2 for load-dump and inductive-switching transients. Its DO-214AA (SMB) package provides robust mechanical mounting and UL 94V-0 flammability-rated molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 14.4 / 15.9 V @ 1 mA - Confirmed breakdown threshold range defining turn-on consistency |
| VC @ IPP | 21.5 V @ 29 A - Clamped voltage during 10/1000µs surge, limiting downstream IC stress |
| PPK | 600 W - Peak pulse power handling capability per single 10/1000µs transient |
| IR @ VWM | <1 µA - Negligible leakage current at rated stand-off voltage, minimizing standby power loss |
| Package | DO-214AA (SMB) - Standardized surface-mount outline enabling automated placement and reflow compatibility |
| AEC-Q101 | Qualified - Validated for automotive underhood and powertrain applications per stress test requirements |
Pinout & Package
DO-214AA (SMB) package with cathode band marking on one end; two-terminal unidirectional configuration. Matte tin-plated leads meet J-STD-002 solderability standards and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; defines conduction direction |
| Cathode | Protected line input | Connected to supply rail or signal line requiring clamping; marked with band |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power electronics including engine control units and body modules |
| Glass-passivated junction | Ensures long-term stability of VBR and low parametric drift over temperature and life |
| Clamping voltage ≤21.5V @ 29A | Protects 12V automotive systems (e.g., LIN, CAN, sensors) from ISO 7637-2 Pulse 1/2a/2b/3a/3b transients |
| Response time <1.0 ps | Fast enough to suppress ESD events (IEC 61000-4-2) before damage occurs to downstream ICs |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking or special handling prior to assembly |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12V battery-fed ECUs exposed to load dump and inductive switching transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and DC-DC converter input. Use Value: Limits transient voltage to ≤21.5V, preventing overvoltage failure of upstream regulators and microcontrollers. | Use Scenario: Analog sensor inputs (e.g., pressure, temperature) in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Input-stage surge protector on 24V supply lines feeding op-amp front-ends. Use Value: Maintains signal integrity by suppressing fast transients without adding capacitance that degrades bandwidth. |
| LED Lighting Driver Protection | Automotive LIN Bus Line Protection |
Use Scenario: Constant-current LED drivers in headlamp modules subjected to ESD and load dump. IC Role / Device Role / Timing Role: Primary clamping device across driver IC supply pins. Use Value: Withstands 600W surges while maintaining low leakage (<1µA), avoiding false triggering or standby current increase. | Use Scenario: LIN physical layer transceivers in door modules and seat controllers. IC Role / Device Role / Timing Role: Bidirectional-capable protection (via SMBJ13AH variant with CAH suffix) on LIN bus line. Use Value: Clamps both positive and negative transients to ±21.5V, preserving LIN signal timing and voltage thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A | Same VWM/VBR/VC specs but not AEC-Q101 qualified; RθJA = 60°C/W vs. 55°C/W | Not suitable for automotive underhood use; acceptable for commercial industrial designs | Select SMBJ13A only if AEC-Q101 compliance and tighter thermal resistance are not required. |
| SAC13 | Lower PPK (400W); same DO-214AA package; VBR 14.4–16.0V; no AEC-Q101 documentation confirmed | Limited to lower-energy transients; insufficient for full ISO 7637-2 Pulse 5a (load dump) | Use SAC13 only in cost-sensitive non-automotive applications where 600W surge margin is unnecessary. |
Compared with SMBJ13A and SAC13, the SMBJ13AH delivers verified AEC-Q101 qualification, superior thermal performance (55°C/W), and full 600W ISO 7637-2 compliance-making it the only choice for production automotive power rail protection where reliability and specification margin are critical.
Availability
SMBJ13AH is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, LED lighting drivers, and LIN bus protection requiring stable component supply and traceable sourcing.
Supply support for SMBJ13AH 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, MOSFETs, and power management devices.
The SMBJH series was developed specifically for AEC-Q101-compliant automotive transient suppression, targeting 12V/24V power rails subject to ISO 7637-2 and IEC 61000-4-2 stress conditions.
FAQ
What is the clamping voltage of SMBJ13AH and how is it measured?
The SMBJ13AH has a maximum clamping voltage (VC) of 21.5 V, measured at a peak pulse current (IPP) of 29 A using a standardized 10/1000 µs double-exponential surge waveform. This value is guaranteed per the manufacturer's electrical specifications table and reflects worst-case voltage seen by downstream circuitry during transient events.
Is SMBJ13AH bidirectional or unidirectional?
SMBJ13AH is a unidirectional TVS diode, indicated by the "AH" suffix and cathode band marking. For bidirectional operation, the SMBJ13CAH variant must be used. The unidirectional configuration provides lower leakage and optimized clamping for DC-biased rails like automotive 12V supplies.
Does SMBJ13AH meet automotive qualification standards?
Yes, SMBJ13AH is explicitly AEC-Q101 qualified per the manufacturer's datasheet (Version A2102), covering stress tests including high-temperature operating life, temperature cycling, and ESD. This makes it suitable for automotive powertrain, body, and chassis applications requiring certified reliability.
What is the maximum operating temperature for SMBJ13AH?
The SMBJ13AH has a maximum junction temperature (TJ) of +150°C and a storage temperature range of –55°C to +150°C. Its thermal resistance values (RθJC = 10°C/W, RθJA = 55°C/W) allow reliable operation in under-hood environments when mounted on appropriate copper area.
How does SMBJ13AH differ from SMBJ13H?
SMBJ13AH offers tighter breakdown voltage tolerance (14.4–15.9 V) versus SMBJ13H (14.4–17.6 V), resulting in more consistent clamping behavior and reduced risk of premature conduction. Both share identical package, power rating, and AEC-Q101 qualification-but SMBJ13AH provides improved parametric uniformity for high-reliability designs.
SMBJ13AH 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 29A
- 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)
SMBJ13AH FAQ
1.How can I place an order for SMBJ13AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13AH 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 SMBJ13AH reliable?
The price and inventory of SMBJ13AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ13AH is usually 5 days.
3.What payment methods are accepted for SMBJ13AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13AH?
SMBJ13AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13AH 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 SMBJ13AH?
For technical support, including SMBJ13AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13AH requirements.
6.How does Aetrix verify that SMBJ13AH is sourced from the original manufacturer or authorized distributors?
All SMBJ13AH 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 SMBJ13AH meets industry standards.
7.What is the process for return or replacement of SMBJ13AH?
All SMBJ13AH units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13AH, 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 SMBJ13AH part is unused and in its original packaging.
Return procedure for SMBJ13AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ13AH 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…
