My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMB15AHE3/5BT
;;2.jpg)
- Part No.:
- TPSMB15AHE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB15AHE3/5BT.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,303
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMB15AHE3/5BT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection of sensitive electronics. It features a 15.0 V nominal breakdown voltage (VBR), 12.8 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 21.2 V maximum clamping voltage at 28.3 A surge current, and operates up to +185 °C junction temperature - ideal for automotive power line and sensor interface protection.
For engineers reviewing the TPSMB15AHE3/5BT datasheet, TPSMB15AHE3/5BT pinout, TPSMB15AHE3/5BT application, or TPSMB15AHE3/5BT equivalent, this page delivers verified electrical parameters, SMB (DO-214AA) package details, AEC-Q101 qualification status, clamping performance under surge conditions, and direct alternatives for automotive-grade circuit protection design.
Technical Context
The TPSMB15AHE3/5BT employs passivated anisotropic rectifier technology optimized for high-reliability transient suppression. Its unidirectional polarity and 12.8 V stand-off voltage enable reliable blocking of reverse leakage (<1 µA at 25 °C) while maintaining fast response to transients.
Rated for 600 W peak pulse power per 10/1000 µs waveform and 75 A non-repetitive forward surge current (8.3 ms half-sine), it sustains operation across –65 °C to +185 °C with a positive temperature coefficient of VBR (+0.076 %/°C), ensuring stable clamping in high-temperature automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 14.3 / 15.0 / 15.8 V - ensures precise triggering above system operating voltage without false conduction |
| VWM | 12.8 V - provides safe DC blocking margin below VBR, minimizing leakage in standby |
| VC @ IPPM | 21.2 V - limits downstream voltage stress during 28.3 A transient events |
| PPPM | 600 W - handles high-energy surges common in automotive load-dump and inductive switching |
| TJ max. | +185 °C - supports under-hood placement and AEC-Q101-compliant automotive reliability |
| Package | SMB (DO-214AA) - industry-standard SMD footprint with 0.220" x 0.205" pad layout and MSL Level 1 rating |
| AEC-Q101 | Qualified - validated for automotive electronic systems per stress test requirements |
Pinout & Package
TPSMB15AHE3/5BT uses the SMB (DO-214AA) surface-mount package with cathode indicated by a color band. The device has two terminals: anode and cathode - no internal circuitry or additional pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VBR exceeded |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Withstands high-energy transients from load dump and inductive kick without degradation |
| 185 °C maximum junction temperature | Enables deployment in engine control units, body controllers, and other high-temperature automotive zones |
| Low clamping ratio (VC/VBR ≈ 1.41) | Minimizes overvoltage exposure to downstream ICs like MCUs and CAN transceivers |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free PCB assembly without moisture sensitivity concerns |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive use including temperature cycling, HTRB, and surge endurance tests |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against ISO 7637-2 Pulse 1, 2a, and 5a transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges before they reach MCU power inputs. Use Value: Limits peak voltage to ≤21.2 V during 28.3 A transients, preserving 3.3 V/5 V regulator input integrity and preventing latch-up. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS connected across differential signal lines to absorb ESD and switching noise coupled from adjacent motor drives. Use Value: Sub-1 ns response time and <1 µA leakage at 12.8 V ensure signal fidelity and zero offset drift in precision measurement paths. |
| Telecom DC Power Input Protection | Consumer Device USB/DC Jack Protection |
|
Use Scenario: Guarding 48 V PoE-powered network switches against lightning-induced surges on DC input rails. IC Role / Device Role / Timing Role: Primary clamping device on secondary-side DC bus, coordinated with upstream MOVs and fuses. Use Value: 600 W rating and 21.2 V clamping allow coordination with 36 V-rated DC-DC converters without over-stressing output stages. |
Use Scenario: Protecting USB-C PD adapters and portable chargers from plug-in surges and hot-swap transients. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line to suppress overshoot during connector mating and cable discharge events. Use Value: 12.8 V stand-off and 21.2 V clamping align with USB PD 3.0 20 V profile, enabling safe operation up to 20 V input. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | Same VBR (14.3–15.8 V), lower PPPM = 400 W, SMA package (smaller thermal mass) | Limited to lower-energy transients; not AEC-Q101 qualified | Select for cost-sensitive consumer designs where automotive qualification and 600 W margin are unnecessary |
| SMCJ15A | Same VBR, higher PPPM = 1500 W, larger SMC package, same AEC-Q101 option available | Better suited for heavy-duty industrial surge immunity (IEC 61000-4-5 Level 4) | Choose when system-level testing requires >600 W headroom or board space permits larger footprint |
Compared with SMAJ15A and SMCJ15A, the TPSMB15AHE3/5BT delivers optimal balance of automotive qualification, 600 W surge capability, and SMB footprint - making it preferred for space-constrained automotive modules requiring validated reliability without over-engineering.
Availability
TPSMB15AHE3/5BT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom DC power inputs, and consumer USB-C power delivery systems requiring stable component supply and long-term lifecycle support.
Supply support for TPSMB15AHE3/5BT 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The TPSMB series is part of Vishay's PAR® transient voltage suppressor family, engineered specifically for high-temperature stability and AEC-Q101 compliance in automotive power distribution and sensor protection circuits.
FAQ
What is the clamping voltage of the TPSMB15AHE3/5BT at its rated peak pulse current?
The TPSMB15AHE3/5BT has a maximum clamping voltage (VC) of 21.2 V when subjected to its peak pulse current (IPPM) of 28.3 A under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and guarantees predictable overvoltage limiting for downstream components in the TPSMB15AHE3/5BT protection circuit.
Is the TPSMB15AHE3/5BT qualified for automotive applications?
Yes, the TPSMB15AHE3/5BT is AEC-Q101 qualified - confirmed by Vishay's documentation for the HE3 suffix variant. It undergoes rigorous stress testing including high-temperature reverse bias, temperature cycling, and surge endurance, making it suitable for under-hood and chassis-mounted automotive electronics where the TPSMB15AHE3/5BT must operate reliably up to +185 °C.
What does the "HE3" suffix indicate in TPSMB15AHE3/5BT?
The "HE3" suffix in TPSMB15AHE3/5BT denotes RoHS-compliant construction with matte tin-plated leads, JESD201 Class 2 whisker resistance, and full AEC-Q101 qualification. It also specifies packaging in 7" tape-and-reel (5BT indicates 750-unit reel quantity), distinguishing it from HM3 (halogen-free) or non-automotive variants.
How does the TPSMB15AHE3/5BT compare to bidirectional TVS diodes in circuit protection?
The TPSMB15AHE3/5BT is unidirectional and optimized for DC power line protection where reverse voltage is blocked - unlike bidirectional types that conduct on both polarities. Its 12.8 V stand-off and 21.2 V clamping provide tighter voltage control for positive-rail applications, reducing risk of false triggering compared to bidirectional equivalents with higher VC in DC systems using the TPSMB15AHE3/5BT.
What is the thermal derating behavior of the TPSMB15AHE3/5BT above 25 °C ambient?
The TPSMB15AHE3/5BT follows Vishay's published derating curve (Fig. 2): peak pulse power decreases linearly from 600 W at 25 °C to ~300 W at 125 °C ambient. This behavior is critical for thermal design in enclosed automotive enclosures, and the TPSMB15AHE3/5BT's 185 °C TJ rating ensures margin even with significant self-heating during repetitive surge events.
TPSMB15AHE3/5BT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 28.3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
TPSMB15AHE3/5BT FAQ
1.How can I place an order for TPSMB15AHE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB15AHE3/5BT 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 TPSMB15AHE3/5BT reliable?
The price and inventory of TPSMB15AHE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB15AHE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB15AHE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB15AHE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB15AHE3/5BT?
TPSMB15AHE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB15AHE3/5BT 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 TPSMB15AHE3/5BT?
For technical support, including TPSMB15AHE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB15AHE3/5BT requirements.
6.How does Aetrix verify that TPSMB15AHE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB15AHE3/5BT 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 TPSMB15AHE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB15AHE3/5BT?
All TPSMB15AHE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB15AHE3/5BT, 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 TPSMB15AHE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB15AHE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB15AHE3/5BT 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 …
