My Inquiry
My Account
Diodes Incorporated SMBJ17A-13-F
- Part No.:
- SMBJ17A-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ17A-13-F.pdf
- Description:
- TVS DIODE 17V 27.6V SMB
- Quantity:
- Payment:
- Shipping:
Inventory:2,868
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ17A-13-F from Diodes Incorporated is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with 17V reverse standoff voltage, 18.9V minimum breakdown voltage at 1mA, 27.6V maximum clamping voltage at 21.7A peak pulse current, and SMB package. It protects DC power rails and I/O lines in industrial motor drives against ESD and lightning-induced surges.
For engineers reviewing the SMBJ17A-13-F datasheet, SMBJ17A-13-F pinout, SMBJ17A-13-F application, or SMBJ17A-13-F equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, peak pulse current handling for 8.3ms surge waveforms, thermal derating above +25°C, and RoHS-compliant matte tin lead finish compatibility with lead-free reflow.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: it remains high-impedance below 17V VRWM, then avalanches sharply at ≥18.9V to divert surge current away from downstream circuitry. Its glass-passivated die ensures stable breakdown characteristics over temperature and lifetime.
The device complies with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (surge) immunity standards when used with appropriate series impedance. Its 1.0mA test current and 5.0μA max leakage at VRWM support low-power standby systems without excessive quiescent drain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single 8.3ms half-sine surges up to 21.7A without failure |
| Reverse Standoff Voltage | 17V - maximum continuous DC voltage before significant leakage begins |
| Breakdown Voltage | 18.9–21.7V @ 1mA - defines precise avalanche onset threshold for predictable clamping |
| Clamping Voltage | 27.6V @ 21.7A - limits transient voltage seen by protected ICs during worst-case surge |
| Leakage Current | ≤5.0μA @ 17V - negligible standby power loss in battery-powered or low-quiescent systems |
| Package | SMB - surface-mount outline with 3.3–3.94mm body width, optimized for automated placement and thermal relief |
| Operating Temp | −55°C to +150°C - supports under-hood automotive, industrial PLC, and outdoor telecom applications |
Pinout & Package
Two-terminal unidirectional TVS in SMB package: Cathode (marked band) and Anode. No internal complexity-functions as a single-polarity voltage clamp between these terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge return path | Connected to system ground or low-impedance reference; carries full surge current during clamping |
| Anode | Protected line connection | Connected to line being protected (e.g., 12V rail, RS-485 A/B); voltage referenced to cathode |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse rating | Enables robust protection against IEC 61000-4-5 Level 4 (4kV/2Ω) surges on 24V industrial buses |
| Glass-passivated die | Ensures stable VBR over 1000+ surge events and >10-year field life in harsh environments |
| RoHS-compliant matte tin plating | Supports Pb-free reflow profiles (peak 260°C) without solder joint degradation or whisker risk |
| UL 94V-0 molded case | Prevents flame propagation in enclosed enclosures during fault conditions or overvoltage failure |
| Level 1 moisture sensitivity | Eliminates bake requirements prior to SMT assembly-reduces manufacturing cost and cycle time |
Applications
| Industrial Motor Drive I/O Protection | Automotive Body Control Module (BCM) Power Input |
|---|---|
Use Scenario: Protecting encoder feedback lines and digital I/O pins in servo drive controllers exposed to back-EMF transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between signal line and chassis ground to clamp inductive kickback spikes. Use Value: Limits transient voltage to ≤27.6V, preventing damage to 3.3V/5V logic-level interface ICs while maintaining signal integrity. |
Use Scenario: Safeguarding 12V supply input of BCM modules subjected to load dump (ISO 7637-2 Pulse 5a) and jump-start surges. IC Role / Device Role / Timing Role: Primary front-end clamping device in series with upstream fuse and downstream DC-DC converter. Use Value: Clamps 12V rail to 27.6V during 35V/100ms load dump events, enabling use of lower-voltage-rated downstream regulators. |
| Telecom Remote Radio Unit (RRU) DC Power Feed | Smart Grid Distribution Automation Terminal |
Use Scenario: Protecting −48V DC power input of outdoor RRUs connected via long cables susceptible to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS mounted directly at connector entry point to minimize inductance in surge path. Use Value: Withstands 600W surges with <10ns response, limiting voltage rise across PoE-like power feed circuits before protection ICs activate. |
Use Scenario: Securing 24V auxiliary power input of RTUs installed in substation cabinets exposed to switching transients and induced surges. IC Role / Device Role / Timing Role: Secondary overvoltage clamp after primary MOV-based AC/DC front-end, providing fast, precise DC rail protection. Use Value: Provides tighter clamping (27.6V vs. MOV's ~40V) to protect sensitive microcontrollers and isolated communication interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17CA-13-F | Bi-directional version; symmetric clamping for AC-coupled or floating lines | Required for RS-485 differential pairs or audio signal lines where polarity reversal occurs | Select only if bidirectional surge protection is needed; otherwise unidirectional offers lower leakage and tighter VRWM |
| SMCJ17A-13-F | Same electrical specs but larger SMC package (higher thermal mass, 1500W rating) | Better suited for high-repetition surge environments or higher ambient temperatures (>85°C) | Choose when PCB layout allows larger footprint and thermal performance exceeds 600W requirement |
Compared with SMBJ17CA-13-F, the SMBJ17A-13-F provides lower leakage and sharper unidirectional clamping; compared with SMCJ17A-13-F, it trades thermal robustness for space savings in compact industrial modules.
Availability
SMBJ17A-13-F is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom remote radio units, and smart grid distribution automation terminals requiring stable component supply and long-term lifecycle assurance.
Supply support for SMBJ17A-13-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The SMBJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-reliability DC power line and signal line protection in industrial, automotive, and communications infrastructure applications.
FAQ
What is the maximum clamping voltage of SMBJ17A-13-F at its rated peak pulse current?
The maximum clamping voltage is 27.6V at 21.7A peak pulse current (IPP), measured using the standard 8.3ms half-sine waveform per IEC 61000-4-5. This value defines the upper voltage limit imposed on protected circuitry during a worst-case surge event and must be verified against the absolute maximum ratings of downstream components.
Is SMBJ17A-13-F suitable for protecting 3.3V logic interfaces?
No - its 17V reverse standoff voltage and 27.6V clamping voltage exceed the absolute maximum ratings of 3.3V ICs. It is intended for 12V–24V systems such as motor drive power rails or automotive BCM inputs. For 3.3V interfaces, use lower-voltage TVS devices like SMAJ3.3A or DFN-based ultra-low-capacitance TVS arrays.
Does SMBJ17A-13-F require derating at elevated ambient temperatures?
Yes - its peak pulse power derates linearly at 4.8W/°C above +25°C, and steady-state power dissipation derates from 5.0W at +75°C lead temperature. Designers must apply thermal modeling or empirical testing to ensure junction temperature remains within −55°C to +150°C limits under combined DC bias and surge conditions.
How does the SMB package compare to SMA or SMC for TVS applications?
The SMB package (3.94 × 4.57 mm) offers 20% smaller footprint than SMC and 30% larger than SMA, balancing board space, thermal performance, and surge handling. Its 600W rating suits most industrial surges, while SMC supports 1500W for extreme environments and SMA is limited to 400W - making SMB optimal for space-constrained yet robust designs.
SMBJ17A-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- 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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 21.7A
- 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:
- SMB
SMBJ17A-13-F FAQ
1.How can I place an order for SMBJ17A-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ17A-13-F 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 SMBJ17A-13-F reliable?
The price and inventory of SMBJ17A-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ17A-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ17A-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ17A-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ17A-13-F?
SMBJ17A-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ17A-13-F 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 SMBJ17A-13-F?
For technical support, including SMBJ17A-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ17A-13-F requirements.
6.How does Aetrix verify that SMBJ17A-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ17A-13-F 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 SMBJ17A-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ17A-13-F?
All SMBJ17A-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ17A-13-F, 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 SMBJ17A-13-F part is unused and in its original packaging.
Return procedure for SMBJ17A-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ17A-13-F 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
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…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
