My Inquiry
My Account
Diodes Incorporated SMBJ14A-13-F
- Part No.:
- SMBJ14A-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ14A-13-F.pdf
- Description:
- TVS DIODE 14VWM 23.2VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:12,060
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ14A-13-F from Diodes Incorporated is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with 14.0V reverse standoff voltage, 15.6V minimum breakdown voltage at 1.0mA test current, and 23.2V maximum clamping voltage at 25.8A peak pulse current. It features glass-passivated die construction, UL 94V-0 molded plastic SMB package, and is rated for -55°C to +150°C operating temperature - deployed in DC power rail protection for industrial PLC I/O modules.
For engineers reviewing the SMBJ14A-13-F datasheet, SMBJ14A-13-F pinout, SMBJ14A-13-F application, or SMBJ14A-13-F equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, peak pulse current capability under 8.3ms half-sine surge, standoff voltage derating at elevated ambient, and RoHS-compliant lead-free plating compatibility with automated reflow.
Technical Context
This TVS diode operates as a unidirectional clamping device, conducting only during negative transients relative to its anode-cathode polarity. Its glass-passivated junction ensures stable leakage (<5.0µA at 14.0V VRWM) and repeatable breakdown behavior across temperature.
The SMB package enables high thermal dissipation (5.0W steady-state at TL=75°C) while maintaining low parasitic inductance for sub-100ns response to ESD and lightning-induced surges. It is not intended for continuous forward conduction - VF is specified only at IPP=35A (3.5V), not DC bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W (non-repetitive, 8.3ms half-sine, defines surge energy handling) |
| Reverse Standoff Voltage (VRWM) | 14.0V (maximum DC or continuous AC voltage before significant leakage) |
| Breakdown Voltage (VBR) | 15.6–17.9V @ IT = 1.0mA (guaranteed conduction onset window) |
| Clamping Voltage (VC) | 23.2V @ IPP = 25.8A (maximum voltage seen by protected circuit during surge) |
| Leakage Current (IR) | ≤5.0µA @ VRWM = 14.0V (ensures minimal standby power loss and signal integrity) |
| Operating Temperature | -55°C to +150°C (supports under-hood automotive, industrial motor drive, and outdoor telecom environments) |
Pinout & Package
Package: SMB (Surface-Mount Body), molded plastic case per JEDEC DO-214AA, UL 94V-0 rated, 0.1g mass, matte tin-plated terminals solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to system ground or low-impedance reference; carries full surge current during clamping |
| Cathode | Protected line connection | Connected to line being protected (e.g., 12V rail); cathode band denotes polarity on top surface |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse rating | Withstands IEC 61000-4-5 Level 4 (4kV line-earth surge) without degradation when properly mounted |
| Glass-passivated die | Eliminates moisture sensitivity drift and ensures long-term parameter stability in humid environments |
| Lead-free & RoHS compliant | Meets EU Directive 2011/65/EU with <900ppm Br/Cl and <1000ppm Sb - suitable for consumer and medical end equipment |
| SMB package thermal performance | Dissipates 5.0W continuously at lead temperature of 75°C - enables compact PCB layout without heatsinking |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protects 24V digital input channels against induced surges from relay coil flyback and nearby motor switching. IC Role / Device Role: Unidirectional TVS placed between field input and optocoupler/analog front-end. Use Value: Clamps transients to ≤23.2V, keeping input below absolute maximum rating of 30V-rated interface ICs while surviving >100,000 surge events. |
Use Scenario: Shields LIN bus transceiver power pins from load dump and jump-start voltage spikes in door module ECUs. IC Role / Device Role: Primary overvoltage clamp on 12V supply rail upstream of LDO regulator. Use Value: Limits rail voltage to 23.2V during 120V/50ms load dump, preventing LDO thermal shutdown and preserving communication continuity. |
| Telecom Remote Radio Unit | Smart Energy Meter Power Input |
Use Scenario: Guards 48V DC power entry against lightning-induced surges on outdoor fiber-fed base station cabinets. IC Role / Device Role: First-stage clamping device before DC-DC converter primary side. Use Value: Absorbs 600W surge energy without failure, reducing downstream MOV stress and extending system MTBF in coastal deployments. |
Use Scenario: Secures 230VAC-derived 12V auxiliary supply against fast transients from grid switching and capacitor bank energization. IC Role / Device Role: Secondary TVS after bridge rectifier and bulk capacitor, targeting residual high-frequency spikes. Use Value: Provides <5.0µA leakage at 14V, avoiding meter calibration drift while clamping 25.8A surges within 100ns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14A-E3/52 (Vishay) | Same SMB package, identical VRWM/VBR/VC specs, but lead finish is SnPb (not RoHS-compliant) | Not suitable for new designs requiring lead-free compliance; acceptable for legacy repair or non-RoHS markets | Select only if RoHS exemption applies or for backward-compatible board rework |
| P6SMB14A (ON Semiconductor) | Identical electrical specs and SMB footprint, but rated for 1000W peak pulse power (per P6SMB series) | Higher surge margin allows use in higher-energy threat environments (e.g., utility substation interfaces) | Prefer when system-level surge testing exceeds IEC 61000-4-5 Level 4 or requires extended lifetime under repetitive surges |
Compared with SMBJ14A-13-F, the Vishay part lacks RoHS compliance and reduces design flexibility for global markets, while the ON Semiconductor variant offers higher surge robustness at identical footprint and clamping - making it preferable where long-term reliability under repeated transients is critical.
Availability
SMBJ14A-13-F is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive body control modules, telecom remote radio units, and smart energy meter power inputs requiring stable component supply and full traceability.
Supply support for SMBJ14A-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 North America.
The SMBJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-reliability, surface-mount surge protection in industrial, automotive, and communications infrastructure applications.
FAQ
What is the maximum clamping voltage of SMBJ14A-13-F at its rated peak pulse current?
The maximum clamping voltage (VC) is 23.2V at 25.8A peak pulse current (IPP), measured using an 8.3ms single half-sine waveform per IEC 61000-4-5. This value defines the upper voltage limit imposed on the protected circuit during surge events and must be verified against the absolute maximum ratings of downstream components.
Is SMBJ14A-13-F unidirectional or bidirectional, and how is polarity identified?
SMBJ14A-13-F is a unidirectional TVS diode, indicated by the absence of "C" in its part number. Polarity is marked by a cathode band on the top surface of the SMB package - the banded end connects to the protected line (cathode), while the opposite end connects to ground (anode).
Can SMBJ14A-13-F be used in place of a Zener diode for voltage regulation?
No - SMBJ14A-13-F is designed exclusively for transient suppression, not DC voltage regulation. Its VBR tolerance (15.6–17.9V) and lack of tight regulation curve make it unsuitable for precision biasing. It exhibits high dynamic impedance outside surge conditions and is not characterized for continuous power dissipation beyond 5.0W at TL=75°C.
What is the moisture sensitivity level (MSL) and reflow profile compatibility of SMBJ14A-13-F?
SMBJ14A-13-F has Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/60% RH without baking. It supports standard Pb-free reflow profiles with peak temperature up to 260°C, and its matte tin finish ensures reliable wetting per MIL-STD-202, Method 208.
SMBJ14A-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):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 23.2V
- Current - Peak Pulse (10/1000µs):
- 25.8A
- 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
SMBJ14A-13-F FAQ
1.How can I place an order for SMBJ14A-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ14A-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 SMBJ14A-13-F reliable?
The price and inventory of SMBJ14A-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 SMBJ14A-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ14A-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ14A-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ14A-13-F?
SMBJ14A-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ14A-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 SMBJ14A-13-F?
For technical support, including SMBJ14A-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ14A-13-F requirements.
6.How does Aetrix verify that SMBJ14A-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ14A-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 SMBJ14A-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ14A-13-F?
All SMBJ14A-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ14A-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 SMBJ14A-13-F part is unused and in its original packaging.
Return procedure for SMBJ14A-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ14A-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…
