My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMB24AHE3/5BT
;;2.jpg)
- Part No.:
- TPSMB24AHE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB24AHE3/5BT.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,211
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMB24AHE3/5BT from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive and lightning-induced transients on power rails and signal lines. It features a 24.0 V nominal breakdown voltage (VBR), 20.5 V stand-off voltage (VWM), 33.2 V maximum clamping voltage at 18.1 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - used in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the TPSMB24AHE3/5BT datasheet, TPSMB24AHE3/5BT pinout, TPSMB24AHE3/5BT application, or TPSMB24AHE3/5BT equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, clamping performance under 10/1000 µs surge, and thermal derating behavior above 25 °C ambient.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with optimized junction passivation for stable clamping across temperature. Its 185 °C maximum junction rating enables operation in high-reliability automotive engine bay and industrial motor drive environments where sustained thermal stress occurs.
The device delivers consistent 33.2 V clamping at 18.1 A (10/1000 µs), with low incremental surge resistance and fast response time (<1 ns), ensuring robust protection of downstream MOSFETs and ICs against repetitive transients without degradation under MSL Level 1 reflow conditions (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 22.8 / 24.0 / 25.2 V - defines reliable conduction onset under surge; ensures clamping initiates before damage to 24 V-rated components |
| VWM | 20.5 V - maximum continuous reverse voltage before leakage exceeds 1 µA; sets safe operating margin below system rail |
| VC @ IPPM | 33.2 V at 18.1 A - actual clamped voltage during 10/1000 µs surge; determines protected circuit's worst-case overvoltage exposure |
| PPPM | 600 W - peak transient energy absorption capability; supports repeated surges in automotive load-dump scenarios |
| TJ max. | +185 °C - enables use in under-hood electronics without thermal derating penalties up to this junction temperature |
| Polarity | Unidirectional - protects only against positive transients relative to cathode; requires correct orientation in DC power paths |
| Package | SMB (DO-214AA) - industry-standard SMD outline with 0.205" × 0.220" footprint; compatible with automated placement and reflow |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case with matte tin-plated leads. Cathode indicated by color band. Compliant with UL 94 V-0, J-STD-002 solderability, and JESD 22-B102 whisker testing (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VLINE > VBR; must be routed with low-inductance path to GND |
| Anode | Reference/return node | Typically tied to system ground or lower-potential rail; completes clamping path; polarity-sensitive installation required |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per AEC standard |
| 185 °C junction rating | Supports continuous operation in high-temperature zones (e.g., engine control units) without derating until TJ exceeds 185 °C |
| 600 W peak pulse power (10/1000 µs) | Withstands ISO 7637-2 Pulse 5a load-dump transients in 12 V systems with margin |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on protected ICs compared to higher-ratio TVS devices |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs of body control modules (BCM) against ISO 16750-2 load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between battery rail and DC-DC input stage. Use Value: Limits transient voltage to ≤33.2 V, preventing latch-up or gate oxide rupture in upstream regulators rated for 36 V absolute max. |
Use Scenario: Safeguarding analog outputs of pressure sensors in hydraulic control systems exposed to inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Standoff-clamp protector on 4–20 mA current loop output line. Use Value: Clamps transients within <1 ns while maintaining <1 µA leakage at 20.5 V, preserving loop accuracy and long-term calibration stability. |
| Telecom Power Supply Input | Consumer Appliance Motor Drive Protection |
Use Scenario: Secondary-side overvoltage suppression on 24 V telecom power supplies subject to lightning-induced surges on AC input coupling paths. IC Role / Device Role / Timing Role: Final-stage transient limiter before point-of-load converters feeding FPGA or PHY ICs. Use Value: Delivers 600 W surge handling with 33.2 V clamping, enabling compliance with IEC 61000-4-5 Level 3 (1 kV/2 Ω) without additional stages. |
Use Scenario: Suppressing commutation spikes on BLDC motor driver half-bridges in smart home appliances (e.g., washing machine drum drives). IC Role / Device Role / Timing Role: Rail-to-rail clamp across VDD and GND near gate drivers. Use Value: Withstands 75 A non-repetitive forward surge (IFSM) and maintains stable VBR across -65 °C to +185 °C, supporting wide ambient operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Same VBR (24 V), but lower PPPM = 400 W; SMB package identical; no AEC-Q101 qualification | Not suitable for automotive under-hood use; acceptable for commercial-grade industrial controls | Select SMAJ24A only if AEC-Q101 and 600 W surge margin are not required |
| TPSMB24AHM3/5BT | Identical electrical specs and AEC-Q101 qualification; differs only in halogen-free molding compound (HM3 vs HE3) | No functional difference; HM3 required where halogen-free compliance is mandated (e.g., EU RoHS + POPs) | Choose TPSMB24AHM3/5BT when halogen-free material specification applies; otherwise HE3 suffices |
Compared with SMAJ24A, TPSMB24AHE3/5BT provides 50 % higher surge power handling and automotive qualification; versus TPSMB24AHM3/5BT, it uses standard RoHS-compliant compound without halogen restriction - making HE3 optimal for cost-sensitive AEC-Q101 designs where halogen-free is not mandated.
Availability
TPSMB24AHE3/5BT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface circuits, telecom power supply inputs, and consumer appliance motor drive protection requiring stable component supply and AEC-Q101 assurance.
Supply support for TPSMB24AHE3/5BT 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, rectifiers, and protection devices for demanding industrial and automotive applications.
The TPSMB24AHE3/5BT belongs to Vishay's PAR® series of surface-mount TVS diodes, engineered specifically for high-temperature stability and repeatable clamping performance in harsh-environment electronic systems.
FAQ
What is the maximum clamping voltage of the TPSMB24AHE3/5BT under standard test conditions?
The TPSMB24AHE3/5BT has a maximum clamping voltage (VC) of 33.2 V when subjected to its rated peak pulse current of 18.1 A using the 10/1000 µs waveform. This value is measured per JEDEC standards and reflects the actual voltage seen by protected circuitry during surge events - critical for verifying compatibility with downstream IC voltage tolerances. The TPSMB24AHE3/5BT maintains this clamping performance across its full operating temperature range.
Is the TPSMB24AHE3/5BT qualified for automotive applications?
Yes, the TPSMB24AHE3/5BT is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix "HE3". This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and surge endurance - validating its suitability for automotive powertrain, body electronics, and ADAS subsystems. The TPSMB24AHE3/5BT meets requirements for under-hood deployment up to +185 °C junction temperature.
What does the "HE3" suffix indicate in TPSMB24AHE3/5BT?
The "HE3" suffix in TPSMB24AHE3/5BT denotes RoHS-compliant construction and AEC-Q101 qualification. It specifies that the device uses matte tin-plated leads, passes JESD 201 Class 2 whisker testing, and is packaged in 7" or 13" tape-and-reel formats per ordering code. The "HE3" designation distinguishes it from non-automotive variants and confirms compliance with automotive reliability and environmental standards - a key identifier for TPSMB24AHE3/5BT in procurement and design-in.
How does the TPSMB24AHE3/5BT compare to the TPSMB24AHM3/5BT variant?
The TPSMB24AHE3/5BT and TPSMB24AHM3/5BT share identical electrical specifications, thermal ratings, and AEC-Q101 qualification. Their sole difference lies in material composition: HM3 uses halogen-free molding compound, while HE3 uses standard RoHS-compliant compound. For most automotive and industrial designs, TPSMB24AHE3/5BT is functionally interchangeable with TPSMB24AHM3/5BT unless halogen-free compliance is explicitly required by regulatory or customer specifications.
What is the standoff voltage (VWM) of the TPSMB24AHE3/5BT, and why does it matter?
The TPSMB24AHE3/5BT has a standoff voltage (VWM) of 20.5 V, meaning it remains non-conductive with leakage <1 µA up to this reverse voltage. This parameter establishes the maximum continuous operating voltage of the protected line - critical for avoiding false triggering during normal operation. Selecting a TVS with VWM ≥110 % of system nominal voltage (e.g., 20.5 V for a 18 V nominal rail) ensures reliable immunity to ripple and tolerance drift while preserving TPSMB24AHE3/5BT's protective function during transients.
TPSMB24AHE3/5BT 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):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 18.1A
- 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)
TPSMB24AHE3/5BT FAQ
1.How can I place an order for TPSMB24AHE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB24AHE3/5BT 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 TPSMB24AHE3/5BT reliable?
The price and inventory of TPSMB24AHE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB24AHE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB24AHE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB24AHE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB24AHE3/5BT?
TPSMB24AHE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB24AHE3/5BT 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 TPSMB24AHE3/5BT?
For technical support, including TPSMB24AHE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB24AHE3/5BT requirements.
6.How does Aetrix verify that TPSMB24AHE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB24AHE3/5BT 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 TPSMB24AHE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB24AHE3/5BT?
All TPSMB24AHE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB24AHE3/5BT, 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 TPSMB24AHE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB24AHE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB24AHE3/5BT 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 …
