? 2014 teledyne relays (800) 284-7007 ? www.teledynerelays.com bs page 1 bs\072014\q3 series bs 4a to 250 vac sip package dc control .30 (7.62) .49 (12.7) ? .001 .30 (7.63) .20 (5.08) ? .001 .40 (10.16) ? .001 .19 (6.5) 1.70 (43.2) ? .02 ? .02 .39 (10.2) ? 0.01 ? 0.01 ?1 + - .98 (25.4) weight: 0.7 oz. (20g) mechanical specification figure 1 ? bs relays; dimensions in inches [mm] input (control) specification min max units control range bs24d4a 3 10 vdc bs24d4f 8 30 vdc input current range 5 30 madc must turn-off voltage 0.8 vdc input resistance (typical) bs24d4a 330 ohms bs24d4a 1200 ohms notes 1) line voltage 24 = 280 vac 2) switch type: d = zero-cross turn-on 3) control range: a = 3.0-10 vdc for bs24d4a; f = 8-30 vdc typical application load l 1 n load l 1 n or external mov external mov figure 3 ? bs relays 24 line voltage 1 4 output current ? amps d switch type 2 bs series a control range 3 part number explanation part number description bs24d4a 4a, 280 vac bs24d4f 25a, 280 vac features/benefits ? industry standard package ? high in-rush capabilities ? low input current draw ? high dv/dt capability description the bs 4-amp solid-state single inline (sip) four-pin relays are designed for mounting on a printed circuit board. the relays offer built-in voltage protection and can withstand very high current overloads. the series bs4 relays have a low zero-cross window. the compact size and triac output make the bs relay the perfect retro t for electromechanical relays. applications ? interface applications ? vending machines ? light/lamp control ? hvac controls approvals all models are ul recognized. vde approved. ul file number: e128555.
bs page 2 specifications are subject to change without notice ? 2014 teledyne relays bs\072014\q3 series bs 4a to 250 vac sip package dc control output (load) specification min max units operating range 15 280 vrms peak voltage 600 vpeak load current range .05 4 arms maximum surge current rating (non-repetitive) (see figure 5) 100 apeak on-state voltage drop 1.6 v off-state leakage current (60 hz) 0.3 marms turn-on time (60hz) 8.3 ms turn-off time (60hz) 8.3 ms operating frequency range 10 63 hz off-state dv/dt 200 v/ s zero-cross window 50 v i2t for matching fuse (<8.3ms) 50 a2s environmental specification min max units operating temperature -40 80 oc storage temperature -40 150 oc input-ouput isolation 4000 vrms input-output capacitance 8 pf figure 3 detection/ control circuit detection/ control circuit vdc input + ? a1 pole a ac a2 b1 b2 pole b ac detection/ control circuit c1 pole c ac c2 opto isolated control block diagram notes 1. electrical speci cations at 25 oc unless otherwise speci ed. 2. see gure 6 for output protection recommendation 3. for additional/custom options, contact factory load current derating curve surge current rating load current (arms) ambient temperature ( ? c) figure 4 ? thermal curves figure 5 ? non-repetitive surge current 4 ? 3 + 2 ~ 1 ~ block diagram figure 2 ? bs relays
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