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www.vishay.com
SM15T Series
Vishay General Semiconductor
Surface Mount TRANSZORB® Transient Voltage Suppressors
Cathode
SMC (DO-214AB)
Anode
(unidirectional)
(bidirectional)
LINKS TO ADDITIONAL RESOURCES
3D 3D
3D Models
PRIMARY CHARACTERISTICS
VWM VBR unidirectional VBR bidirectional
PPPM PD
IFSM (uni-directional only) TJ max. Polarity
5.8 V to 188 V 6.8 V to 220 V 6.8 V to 220 V
1500 W 6.5 W 200 A 150 °C Unidirectional, bidirectional
Package
SMC (DO-214AB)
DEVICES FOR BIDIRECTION APPLICATIONS
For bidirectional devices use CA suffix (e.g. SM15T12CA). Electrical characteristics apply in both directions.
APPLICATION NOTES
A 1500 W (SMC) device is normally selected when the threat of transients is from lightning induced transients, conducted via external leads or I/O lines. It is also used to protect against switching transients induced by large coils or industrial motors. Source impedance at component level in a system is usually high enough to limit the current within the peak pulse current (IPP) rating of this series. In an overstress condition, the failure mode is a short circuit.
FEATURES
• Low profile package
Available
• Ideal for automated placement
• Glass passivated chip junction
• Available in unidirectional and bidirectional
• 1500 W peak pulse power capability with a 10/1000 μs waveform
• Excellent clamping capability
Available
• Low inductance
• Meets MSL level 1, per J-STD-020, LF maximum peak of 260 °C
• AEC-Q101 qualified available - Automotive ordering code: base P/NHE3 or P/NHM3
• Material categorization: for definitions of compliance please see www.vishay.com/doc?99912
TYPICAL APPLICATIONS
Use in sensitive electronics protection against voltage transients induced by inductive load switching and lighting on ICs, MOSFET, signal lines of sensor units for consumer, computer, industrial, automotive, and telecommunication.
MECHANICAL DATA
Case: SMC (DO-214AB) Molding compound meets UL 94 V-0 flammability rating Base P/N-E3 - RoHS-compliant and commercial grade Base P/N-M3 - halogen-free, RoHS-compliant, commercial grade Base P/NHE3_X - RoHS-compliant and AEC-Q101 qualified Base P/NHM3_X - halogen-free, RoHS-compliant, and AEC-Q101 qualified (“_X” denotes revision code e.g. A, B, ...)
Terminals: matte tin plated leads, solderable per J-STD-002 and JESD 22-B102 E3, M3, HE3, and HM3 suffix meets JESD 201 class 2 whisker test
Polarity: for unidirectional types the band denotes cathode end, no marking on bidirectional types
MAXIMUM RATINGS (TA = 25 °C unless otherwise noted)
PARAMETER Peak power dissipation with a 10/1000 μs waveform (1)(2) (fig. 1) Peak pulse current with a 10/1000 μs waveform (1) (fig. 3)
Power dissipation on infinite heatsink at TA = 50 °C Peak forward surge current 10 ms single half sine-wave uni-directional only (2)
Operating junction and storage temperature range
Notes (1) Non-repetitive current pulse, per fig. 3 and derated above TA = 25 °C per fig. 2 (2) Mounted on 0.31" x 0.31" (8.0 mm x.