Power Supplies
Open Frame & Din Rail Mount Buffer modules offer
extended hold-up
 ZBM-AC: Connected to primary side of specific AC-DC power supply DBM20/DBM20: Connected to DC outputs of AC-DC/DC-DC Power Supplies
 ZBM-AC/ZBM20: Open frame & DBM: Din-Rail mountJan 27, 2022
TDK Corporation (TSE:6762) announces the new DBM20/ZBM20 and ZBM-AC of TDKLambda buffer modules. TDK-Lambda Corporation (President and CEO: Sanai Hattori) will
start accepting orders from February 2022.
Buffer modules, collectively named “e-hold*1” are the first in TDK-Lambda lineup.
e-hold family includes ZBM-AC connected to primary side of specific AC-DC*2 andDBM/ZBM connected to DC outputs of general AC-DC/DC-DC power supplies.
e-hold supports growing market demand for extended hold up time coming from SEMI F47
and industrial automation. Multiple modules can be paralleled for longer buffer times.
The extended hold-up time allows equipment to safely shutdown and avoid data loss during
AC power interruptions
Certification is to the IEC 62368-1 safety standards with UL/cUL508 approval for DBM20 andIEC/EN62477-1 (OVCIII) approval for ZBM-AC.
----Main applications
 Industrial Automation, Robotics, Semiconductor fabrication equipment, Buildingautomation, Communication equipment.
Main features and benefits
 Space saving in customer applications
 Supports various connection (primary side & DC outputs of power supplies) Seamless hold up operation with ZBM-AC
 Certified to international safety standards
1*2e-hold is registered trademark of TDK-Lambda
Specific power supply ：ZWS300RC-24/BM and ZWS300RC-24/RBM

TDK Corporation

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Key Data︓ZBM-AC
ModelUpper Limit Input Voltage
Hold-up Time (Typ.) *3
Charging Time (Typ.)
Auxiliary Power Supply
Operating Temperature
Cooling
SafetyZBM-AC162-ZBM-AC162/S
395VDC max
200ms *in case of 290W
4s
Yes (24VDC, 0.2A output)-10 〜 + 70℃
Convection

IEC/UL/EN/CSA62368-1, IEC/EN62477-1 (OVCIII）
54.0 × 42.0 × 170.0 mm

Size (W×H×D)
Function

Power Fail Signal（Monitor module operation）

Key Data︓ZBM20/DBM20
ModelInput Voltage Range
Output Voltage
Buffer Time (Typ.) *3in case of 20A
Nominal Buffer Power
Charging Time (Typ.)Operating Temperature
Cooling
SafetySize (W×H×D)

ZBM20-12

ZBM20-15

12VDC(11.5-14.4VDC)
11VDC

15VDC
(14.4-18.0VDC)
13.8VDC

380ms

380ms

220W

276W

ZBM20-24
DBM20(Fix mode)
24VDC(23.0-30.0VDC)
22.4VDCZBM20-24
DBM20(VIN-1 mode)
24VDC(24.0-30.0VDC)

23.0 〜 29VDC
ZBM20-24: 380ms @22.4VDC
DBM20: 250ms @22.4VDC
448W
580W @29VDC

40s-25 to +70 oC
Convection Cooling
IEC / UL / CSA62368-1, UL/cUL508 for DBM20
ZBM20-24 : 85.0 × 57.0× 175.0 mm
85.0 × 57.0 × 175.0 mm
DBM20 : 49.0 × 123.6 × 115.4 mm
DC OK Signal（Monitors DC input）

Function

Buffer Signal（Monitors DC output）
Ready Signal（Monitors module conditions）
Inhibit Signal (Used to safety discharge energy stored in built-in bulk capacitor）*3 With maximum load. Hold-up time can be extended with lighter load.

About TDK Corporation
TDK Corporation is a world leader in electronic solutions for the smart society based in Tokyo, Japan.
Built on a foundation of material sciences mastery, TDK welcomes societal transformation by
resolutely remaining at the forefront of technological evolution and deliberately “Attracting Tomorrow.”
It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products.
TDK's comprehensive, innovation-driven portfolio features passive components such as ceramic,
aluminum electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo andprotection devices. The product spectrum also includes sensors and sensor systems such astemperature and pressure, magnetic, and MEMS sensors. In addition, TDK provides power supplies
and energy devices, magnetic heads and more. These products are marketed under the product
TDK Corporation

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brands TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda. TDK focuses on demanding
markets in automotive, industrial and consumer electronics, and information and communication
technology. The company has a network of design and manufacturing locations and sales offices inAsia, Europe, and in North and South America. In fiscal 2021, TDK posted total sales of USD 13.3
billion and employed about 129,000 people worldwide.

About TDK-Lambda Corporation
TDK-Lambda Corporation is a trusted, innovative leader and global supplier of highly reliable
power conversion products for industrial and medical equipment worldwide. TDK-Lambda
Corporation is aligned for fast responses to any customer need with R&D, manufacturing,sales and service locations in five key geographic regions, namely Japan, EMEA, Americas,
China and ASEAN.
For more details, please pay a visit to: www.jp.lambda.tdk.com/en/----You can download this text and associated images fromhttps://product.tdk.com/en/search/power/switching-power/pwracc/catalog#group2_130107_1000000158743
Further information on the products can be found underwww.jp.lambda.tdk.com/en/about/press/20220127_01.html-----

Contact for the media
ContactMr. Yoichi OSUGATDK Corporation

TDK CorporationTokyo, Japan

Phone\Email Address+81 3 6778-1055

pr@jp.tdk.com

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