My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ13AHM3/H
- Part No.:
- SMBJ13AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13AHM3/H.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,057
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ13AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast-rising ESD and surge transients on power and signal lines. It features 13 V standoff voltage (VWM), 21.5 V maximum clamping voltage (VC) at 27.9 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), commonly deployed to protect MOSFET gate drivers and sensor I/O in industrial motor control systems.
For engineers reviewing the SMBJ13AHM3/H datasheet, SMBJ13AHM3/H pinout, SMBJ13AHM3/H application, or SMBJ13AHM3/H equivalent, key selection criteria include its 13 V working voltage, 21.5 V clamping performance under 27.9 A surge, halogen-free RoHS-compliant construction (HM3 suffix), and AEC-Q101 qualification readiness - critical for automotive-grade board-level surge protection design.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 14.4–15.9 V breakdown range (VBR at 1 mA). Its low 20 °C/W junction-to-lead thermal resistance enables effective heat dissipation during repetitive surge events.
The device complies with IEC 61000-4-2 (ESD) and IEC 61000-4-5 (surge) immunity requirements when applied with proper PCB layout - including minimum 5.0 mm × 5.0 mm copper pads per terminal - and exhibits <1 ns response time with 0.084 %/°C VBR temperature coefficient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 13 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 14.4–15.9 V at 1 mA - Confirmed avalanche initiation range; ensures reliable triggering above normal operating voltage. |
| VC (Clamping Voltage) | 21.5 V at 27.9 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standardized 10/1000 µs surge waveform; validates robustness against lightning-induced transients. |
| IPPM (Peak Pulse Current) | 27.9 A - Maximum non-repetitive surge current the device can safely divert without degradation. |
| TJmax | 150 °C - Maximum junction temperature rating; supports operation in high-ambient environments like engine control units. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.220" x 0.155" footprint; compatible with automated pick-and-place and reflow processes. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode-band marked end. Dimensions: 5.59 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (unidirectional) | Connected to lower-potential side of protected line; conducts only during forward-biased surges (e.g., positive-going transients on ground-referenced signals). |
| Cathode | Avalanche clamping node | Marked with band; connected to higher-potential side (e.g., VCC rail or signal line); initiates clamping when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validated energy-handling capacity for IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-earth) in properly laid-out circuits. |
| Halogen-free, RoHS-compliant (HM3 suffix) | Meets environmental compliance requirements for automotive and industrial OEMs without compromising thermal or electrical performance. |
| AEC-Q101 qualification ready | Base P/NHM3_X variant supports automotive qualification path; enables use in ADAS camera modules and body control units. |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, reducing stress on downstream ICs such as microcontrollers and analog front-ends. |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow assembly without moisture-related reliability risk. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate driver ICs and current-sense amplifiers against inductive kickback from BLDC motor windings. IC Role / Device Role / Timing Role: Unidirectional TVS placed between gate driver output and MOSFET gate, clamping negative-going transients to prevent gate oxide damage. Use Value: Limits gate-source voltage to ≤21.5 V during 27.9 A surge events, preserving MOSFET reliability over >100,000 switching cycles. |
Use Scenario: Surge suppression on LIN bus lines and door actuator power feeds in vehicle body electronics. IC Role / Device Role / Timing Role: Standoff-rated TVS on 12 V supply rails feeding window lift controllers and mirror adjust modules. Use Value: Maintains 13 V nominal operation while clamping ISO 7637-2 pulse 1 (−100 V/50 Ω) transients to safe levels for 5 V logic interfaces. |
| Industrial Sensor Interfaces | Power Supply Input Protection |
|
Use Scenario: ESD and surge hardening of analog outputs (4–20 mA) and digital I/O (RS-485) in factory-floor pressure and temperature transmitters. IC Role / Device Role / Timing Role: Unidirectional clamp on signal line referenced to system ground, absorbing contact ESD (±8 kV) and cable-coupled surges. Use Value: Achieves IEC 61000-4-2 Level 4 compliance with sub-1 ns response and <100 pF junction capacitance at zero bias. |
Use Scenario: Primary overvoltage protection on 24 V DC input rails of programmable logic controllers (PLCs) and HMIs. IC Role / Device Role / Timing Role: Front-end TVS in series with fuse and common-mode choke, shunting surge energy before upstream regulators. Use Value: Absorbs 600 W transient energy without failure, enabling sustained operation after repeated 1 kV/500 A surge events per IEC 61000-4-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13AHE3/H | RoHS-compliant but not halogen-free; same VWM, VC, and PPPM; no AEC-Q101 path. | Approved for commercial/industrial use only; excluded from automotive supply chains requiring halogen-free materials. | Select when halogen content is unrestricted and cost optimization is prioritized over automotive qualification readiness. |
| SMBJ13A-M3/52 | Identical electrical specs; packaged in 7" tape/reel (750 pcs) vs. SMBJ13AHM3/H's 7" reel with H carrier code; same HM3 material grade. | No functional difference; variation reflects distributor-specific packaging notation rather than product revision. | Choose based on procurement channel preference - both meet identical Vishay HM3 specification and AEC-Q101 qualification path. |
Compared with SMBJ13AHM3/H, SMBJ13AHE3/H lacks halogen-free certification and automotive qualification support, while SMBJ13A-M3/52 offers identical performance in alternate tape-and-reel formatting - making SMBJ13AHM3/H the preferred choice for automotive-tier-1 BOMs requiring documented halogen-free and AEC-Q101-aligned sourcing.
Availability
SMBJ13AHM3/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and sensor interface protection requiring stable component supply with halogen-free compliance and AEC-Q101 qualification readiness.
Supply support for SMBJ13AHM3/H 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The SMBJ series was engineered for high-energy transient suppression in space-constrained surface-mount applications, targeting industrial automation, automotive electronics, and telecom infrastructure where robustness and regulatory compliance are mandatory.
FAQ
What is the clamping voltage of SMBJ13AHM3/H under a 10/1000 µs surge?
The SMBJ13AHM3/H has a maximum clamping voltage (VC) of 21.5 V when subjected to its rated peak pulse current of 27.9 A using the standard 10/1000 µs waveform. This value is measured at TA = 25 °C with specified PCB pad layout (0.2" × 0.2" copper), and represents the upper voltage limit imposed on protected circuitry during surge events. The SMBJ13AHM3/H maintains this clamping performance across its full operational temperature range.
Does SMBJ13AHM3/H meet automotive qualification standards?
SMBJ13AHM3/H uses the HM3 suffix, indicating halogen-free, RoHS-compliant construction and alignment with the AEC-Q101 qualification path. While the base part number itself is not pre-certified, Vishay documents that HM3-suffix variants (e.g., SMBJ13AHM3_B/H) are qualified per AEC-Q101 when ordered with appropriate revision codes (e.g., "_B" or "_H"). Customers must specify the full qualified ordering code to receive AEC-Q101 certified units; SMBJ13AHM3/H is the commercial-grade precursor supporting that qualification route.
How does the HM3 suffix differ from the HE3 suffix in SMBJ13A variants?
The HM3 suffix denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification readiness, whereas HE3 indicates RoHS-compliance without halogen-free assurance. Both share identical electrical parameters (VWM = 13 V, VC = 21.5 V), but HM3 meets stricter material content requirements for automotive and green-electronics programs. The SMBJ13AHM3/H therefore supports Tier 1 automotive BOMs where halogen restrictions apply, unlike SMBJ13AHE3/H.
What is the thermal resistance of SMBJ13AHM3/H, and how does it affect layout?
SMBJ13AHM3/H has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient (RθJA) of 100 °C/W. To maintain reliability during repetitive surges, PCB layout must use minimum 5.0 mm × 5.0 mm copper pads per terminal - as specified in Vishay's mounting recommendations - otherwise thermal derating reduces peak pulse power handling. This requirement directly impacts trace width, copper pour area, and layer stack-up decisions in high-surge designs.
Can SMBJ13AHM3/H replace bidirectional TVS diodes in AC-coupled signal lines?
No - SMBJ13AHM3/H is strictly unidirectional and lacks symmetrical clamping behavior. It conducts only in reverse bias above VBR and forward-biases like a standard diode below ~3.5 V. For AC signal lines (e.g., RS-485, CAN, audio), bidirectional variants like SMBJ13CA must be used to suppress transients of either polarity. Substituting SMBJ13AHM3/H would leave positive-going transients unprotected and risk forward conduction damage.
SMBJ13AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 27.9A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ13AHM3/H FAQ
1.How can I place an order for SMBJ13AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13AHM3/H 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 SMBJ13AHM3/H reliable?
The price and inventory of SMBJ13AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ13AHM3/H is usually 5 days.
3.What payment methods are accepted for SMBJ13AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13AHM3/H?
SMBJ13AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13AHM3/H 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 SMBJ13AHM3/H?
For technical support, including SMBJ13AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13AHM3/H requirements.
6.How does Aetrix verify that SMBJ13AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ13AHM3/H 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 SMBJ13AHM3/H meets industry standards.
7.What is the process for return or replacement of SMBJ13AHM3/H?
All SMBJ13AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13AHM3/H, 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 SMBJ13AHM3/H part is unused and in its original packaging.
Return procedure for SMBJ13AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ13AHM3/H 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
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 …
